djvu | 16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a

Analysis

max time kernel
117s
max time network
127s
platform
windows10_x64
resource
win10-en-20211014
submitted
25-10-2021 10:55

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General

Target

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
Size

746KB
MD5

c659988758cbc8c589b8d68072bbb58f
SHA1

1b783397c6d92e787cf1723dc8bbfca9fe46a437
SHA256

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a
SHA512

8222abde671d3e5f45cc267dcef857ff6ec4934f90d68379837e4714c7abd83c3c78f8b04e282337f62629ef26b24cee9ee71c084696587aa1e063b696430303

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

41.5

Botnet

517

https://mas.to/@xeroxxx

Attributes

profile_id
517

Extracted

Family

djvu

http://rlrz.org/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4368-116-0x0000000000950000-0x0000000000A6B000-memory.dmp	family_djvu
behavioral1/memory/4320-117-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4320-118-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4320-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/360-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/360-130-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/1272-139-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/320-140-0x0000000004C00000-0x0000000004CD6000-memory.dmp	family_vidar
behavioral1/memory/1272-141-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/1272-147-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

build2.exebuild3.exebuild2.exebuild3.exemstsca.exemstsca.exemstsca.exemstsca.exe

pid process

320 build2.exe
1064 build3.exe
1272 build2.exe
1468 build3.exe
4260 mstsca.exe
4276 mstsca.exe
1996 mstsca.exe
2992 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

1272 build2.exe
1272 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3848 icacls.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
320	build2.exe
1064	build3.exe
1272	build2.exe
1468	build3.exe
4260	mstsca.exe
4276	mstsca.exe
1996	mstsca.exe
2992	mstsca.exe

pid	process
1272	build2.exe
1272	build2.exe

pid	process
3848	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7067cac6-edf5-4d28-9ce1-ecd96ff89156\\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe\" --AutoStart"	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

18 api.2ip.ua
23 api.2ip.ua
17 api.2ip.ua

flow	ioc
18	api.2ip.ua
23	api.2ip.ua
17	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 4368 set thread context of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 set thread context of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 320 set thread context of 1272	320	build2.exe	build2.exe
PID 1064 set thread context of 1468	1064	build3.exe	build3.exe
PID 4260 set thread context of 4276	4260	mstsca.exe	mstsca.exe
PID 1996 set thread context of 2992	1996	mstsca.exe	mstsca.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

build2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1580 schtasks.exe
4236 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3184 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2864 taskkill.exe

pid	process
1580	schtasks.exe
4236	schtasks.exe

pid	process
3184	timeout.exe

pid	process
2864	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exebuild2.exe

pid	process
4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe
1272	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2864 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2864	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4368 wrote to memory of 4320	4368	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4320 wrote to memory of 3848	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	icacls.exe
PID 4320 wrote to memory of 3848	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	icacls.exe
PID 4320 wrote to memory of 3848	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	icacls.exe
PID 4320 wrote to memory of 4484	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4320 wrote to memory of 4484	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4320 wrote to memory of 4484	4320	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 4484 wrote to memory of 360	4484	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
PID 360 wrote to memory of 320	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build2.exe
PID 360 wrote to memory of 320	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build2.exe
PID 360 wrote to memory of 320	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build2.exe
PID 360 wrote to memory of 1064	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build3.exe
PID 360 wrote to memory of 1064	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build3.exe
PID 360 wrote to memory of 1064	360	16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe	build3.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 320 wrote to memory of 1272	320	build2.exe	build2.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1064 wrote to memory of 1468	1064	build3.exe	build3.exe
PID 1468 wrote to memory of 1580	1468	build3.exe	schtasks.exe
PID 1468 wrote to memory of 1580	1468	build3.exe	schtasks.exe
PID 1468 wrote to memory of 1580	1468	build3.exe	schtasks.exe
PID 1272 wrote to memory of 2812	1272	build2.exe	cmd.exe
PID 1272 wrote to memory of 2812	1272	build2.exe	cmd.exe
PID 1272 wrote to memory of 2812	1272	build2.exe	cmd.exe
PID 2812 wrote to memory of 2864	2812	cmd.exe	taskkill.exe
PID 2812 wrote to memory of 2864	2812	cmd.exe	taskkill.exe
PID 2812 wrote to memory of 2864	2812	cmd.exe	taskkill.exe
PID 2812 wrote to memory of 3184	2812	cmd.exe	timeout.exe
PID 2812 wrote to memory of 3184	2812	cmd.exe	timeout.exe
PID 2812 wrote to memory of 3184	2812	cmd.exe	timeout.exe
PID 4260 wrote to memory of 4276	4260	mstsca.exe	mstsca.exe
PID 4260 wrote to memory of 4276	4260	mstsca.exe	mstsca.exe
PID 4260 wrote to memory of 4276	4260	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
"C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4368

C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
"C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4320

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\7067cac6-edf5-4d28-9ce1-ecd96ff89156" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:3848

C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
"C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4484

C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
"C:\Users\Admin\AppData\Local\Temp\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:360

C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe
"C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:320

C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe
"C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:2812

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2864

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:3184

C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe
"C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1064

C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe
"C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1468

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
7⤵
- Creates scheduled task(s)
PID:1580

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4260

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:4276

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
3⤵
- Creates scheduled task(s)
PID:4236

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:1996

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:2992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\freebl3.dll
MD5
ef2834ac4ee7d6724f255beaf527e635

SHA1
5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

SHA256
a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

SHA512
c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

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C:\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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C:\ProgramData\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

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C:\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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C:\ProgramData\softokn3.dll
MD5
a2ee53de9167bf0d6c019303b7ca84e5

SHA1
2a3c737fa1157e8483815e98b666408a18c0db42

SHA256
43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

SHA512
45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

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C:\ProgramData\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
45ae4c94440b86d556d008976da3ba12

SHA1
59af8c430eb5348a74bc5369c875730ce1302512

SHA256
5adaf4262e492af02b2a24430e8ff49511be54bb7c67449449a7d00c2206c8bc

SHA512
2064cb934f4a451180d7060f46e8771116ba3829e774eec27b362933857f90c36ace51b86bd033ec53affcf76c4ca63e80ee5981c4c6f999a4377dd5153e6252

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
bdf3dbb928c6755deb36ea5c31d42df0

SHA1
dfa16bffd25cefe1cf48d323649b2d3b7e81f056

SHA256
e92857babb45ecfe5c5a1f2161f98236a1a1e218dec93cd609f691014398b95f

SHA512
60ef0ee4d86494a360f2611830173e070cc407233739ce5da6ba7bdf204c95659085e5ea56afba82df3de7172c9f41c87f240ea0f946378cd4d5de3f34ef61c9

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
2a512cdba9279b184b529e1dbee29cd1

SHA1
761d49a8512f72b00bcee3be46a0919fc8c6d468

SHA256
a0b05f781988db182c8c6a6dc6eb38f0b298df1b906dc49f9a337dd357c4d5ff

SHA512
d6306f40fca46d06bb7e17a0c24b81d39676cc32e7ae5ccdc7c43321290bbb7699e3f25e3aee7e583c4b9eae36eefaacdc5e08d44fb55b962a7a8a43834e9e44

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
4bdd365563c703e9779160312ea0fe94

SHA1
e3004e4d823b45bae9731530930c3e8475ec1624

SHA256
2e2233b647130f5f21a5500e0245fd228950d8c5a43ca7d38aa9a93eacfb722f

SHA512
55fd48d31448a71e63be80f7bd17e489d3427cb9746dbe0f908128e398f7e1b7b93fcfc7e3ee2fea2f445cd24b36ec66e0370e94a881f82acbf7ac1a8a3d96d7

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C:\Users\Admin\AppData\Local\7067cac6-edf5-4d28-9ce1-ecd96ff89156\16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a.exe
MD5
c659988758cbc8c589b8d68072bbb58f

SHA1
1b783397c6d92e787cf1723dc8bbfca9fe46a437

SHA256
16c3f8999141beee55afdb49670b9e44b4916816faeb643639a7ace81c13806a

SHA512
8222abde671d3e5f45cc267dcef857ff6ec4934f90d68379837e4714c7abd83c3c78f8b04e282337f62629ef26b24cee9ee71c084696587aa1e063b696430303

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\aef60667-bea1-4a73-9e01-63c92395f72a\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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memory/320-134-0x0000000003179000-0x00000000031F5000-memory.dmp

Filesize
496KB

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memory/320-131-0x0000000000000000-mapping.dmp

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memory/320-140-0x0000000004C00000-0x0000000004CD6000-memory.dmp

Filesize
856KB

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memory/360-125-0x0000000000424141-mapping.dmp

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memory/360-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/1064-148-0x00000000033A0000-0x00000000033A4000-memory.dmp

Filesize
16KB

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memory/1064-135-0x0000000000000000-mapping.dmp

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memory/1272-139-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/1272-141-0x00000000004A18CD-mapping.dmp

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memory/1272-147-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/1468-149-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1468-144-0x0000000000401AFA-mapping.dmp

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memory/1468-143-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1580-146-0x0000000000000000-mapping.dmp

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memory/1996-169-0x000000000352E000-0x000000000353E000-memory.dmp

Filesize
64KB

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memory/1996-173-0x0000000003330000-0x000000000347A000-memory.dmp

Filesize
1.3MB

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memory/2812-152-0x0000000000000000-mapping.dmp

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memory/2864-153-0x0000000000000000-mapping.dmp

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memory/2992-171-0x0000000000401AFA-mapping.dmp

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memory/3184-154-0x0000000000000000-mapping.dmp

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memory/3848-120-0x0000000000000000-mapping.dmp

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memory/4236-167-0x0000000000000000-mapping.dmp

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memory/4276-165-0x0000000000401AFA-mapping.dmp

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memory/4320-117-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4320-118-0x0000000000424141-mapping.dmp

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memory/4320-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4368-116-0x0000000000950000-0x0000000000A6B000-memory.dmp

Filesize
1.1MB

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memory/4368-115-0x00000000008BA000-0x000000000094C000-memory.dmp

Filesize
584KB

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memory/4484-122-0x0000000000000000-mapping.dmp

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memory/4484-123-0x00000000006C2000-0x0000000000754000-memory.dmp

Filesize
584KB

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