djvu | 5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483

Analysis

max time kernel
123s
max time network
133s
platform
windows10_x64
resource
win10-en-20211014
submitted
19-10-2021 12:12

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General

Target

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
Size

808KB
MD5

2ce98b6647a7e602cfab7414e1dd8ad2
SHA1

7798650ad9d8472d38db018cec6a8807370ce720
SHA256

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483
SHA512

5f5243a2b076f16467c34f11de8c0d5e4f5ace543593a13f834cdc6635e9b743140441eab0d3651dae2a429930f64e0d1983c0be8e1245d3bf48a9b71d966614

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.3

Botnet

517

https://mas.to/@oleg98

Attributes

profile_id
517

Extracted

Family

djvu

http://rlrz.org/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2672-117-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/2672-116-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4024-118-0x0000000004C70000-0x0000000004D8B000-memory.dmp	family_djvu
behavioral1/memory/2672-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4432-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4432-130-0x0000000000400000-0x0000000000537000-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

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/4608-135-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/4608-136-0x00000000004A192D-mapping.dmp	family_vidar
behavioral1/memory/3740-138-0x0000000003360000-0x0000000003436000-memory.dmp	family_vidar
behavioral1/memory/4608-139-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

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

pid process

3740 build2.exe
4608 build2.exe
1048 build3.exe
1220 build3.exe
3968 mstsca.exe
3832 mstsca.exe
1248 mstsca.exe
5008 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

4608 build2.exe
4608 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1996 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
3740	build2.exe
4608	build2.exe
1048	build3.exe
1220	build3.exe
3968	mstsca.exe
3832	mstsca.exe
1248	mstsca.exe
5008	mstsca.exe

pid	process
4608	build2.exe
4608	build2.exe

pid	process
1996	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.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\\8668ff74-924e-4054-80c5-15c3da9eb91f\\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe\" --AutoStart"	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.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

10 api.2ip.ua
11 api.2ip.ua
24 api.2ip.ua

flow	ioc
10	api.2ip.ua
11	api.2ip.ua
24	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 4024 set thread context of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 set thread context of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3740 set thread context of 4608	3740	build2.exe	build2.exe
PID 1048 set thread context of 1220	1048	build3.exe	build3.exe
PID 3968 set thread context of 3832	3968	mstsca.exe	mstsca.exe
PID 1248 set thread context of 5008	1248	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	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

1428 schtasks.exe
3104 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2788 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2144 taskkill.exe

pid	process
1428	schtasks.exe
3104	schtasks.exe

pid	process
2788	timeout.exe

pid	process
2144	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exebuild2.exe

pid	process
2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe
4608	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2144 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2144	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4024 wrote to memory of 2672	4024	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 2672 wrote to memory of 1996	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	icacls.exe
PID 2672 wrote to memory of 1996	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	icacls.exe
PID 2672 wrote to memory of 1996	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	icacls.exe
PID 2672 wrote to memory of 3852	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 2672 wrote to memory of 3852	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 2672 wrote to memory of 3852	2672	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 3852 wrote to memory of 4432	3852	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
PID 4432 wrote to memory of 3740	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build2.exe
PID 4432 wrote to memory of 3740	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build2.exe
PID 4432 wrote to memory of 3740	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 3740 wrote to memory of 4608	3740	build2.exe	build2.exe
PID 4432 wrote to memory of 1048	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build3.exe
PID 4432 wrote to memory of 1048	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build3.exe
PID 4432 wrote to memory of 1048	4432	5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1048 wrote to memory of 1220	1048	build3.exe	build3.exe
PID 1220 wrote to memory of 1428	1220	build3.exe	schtasks.exe
PID 1220 wrote to memory of 1428	1220	build3.exe	schtasks.exe
PID 1220 wrote to memory of 1428	1220	build3.exe	schtasks.exe
PID 4608 wrote to memory of 1808	4608	build2.exe	cmd.exe
PID 4608 wrote to memory of 1808	4608	build2.exe	cmd.exe
PID 4608 wrote to memory of 1808	4608	build2.exe	cmd.exe
PID 1808 wrote to memory of 2144	1808	cmd.exe	taskkill.exe
PID 1808 wrote to memory of 2144	1808	cmd.exe	taskkill.exe
PID 1808 wrote to memory of 2144	1808	cmd.exe	taskkill.exe
PID 1808 wrote to memory of 2788	1808	cmd.exe	timeout.exe
PID 1808 wrote to memory of 2788	1808	cmd.exe	timeout.exe
PID 1808 wrote to memory of 2788	1808	cmd.exe	timeout.exe
PID 3968 wrote to memory of 3832	3968	mstsca.exe	mstsca.exe
PID 3968 wrote to memory of 3832	3968	mstsca.exe	mstsca.exe
PID 3968 wrote to memory of 3832	3968	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
"C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4024

C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
"C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2672

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\8668ff74-924e-4054-80c5-15c3da9eb91f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1996

C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
"C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3852

C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
"C:\Users\Admin\AppData\Local\Temp\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4432

C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe
"C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3740

C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe
"C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4608

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\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2144

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:2788

C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe
"C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1048

C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe
"C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1220

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:1428

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:3968

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:3832

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:3104

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:1248

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:5008

Network

MITRE ATT&CK Matrix ATT&CK 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 Permissions Modification

T1222

Modify Registry

T1112

Install Root Certificate

T1130

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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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
3183751859498c44f6d0ee8e2aab2c17

SHA1
3948927d001256209b5e4b25003c3c4ccb9ad6bc

SHA256
fd7b40ffbaccd347c4daa2d0530a3b74114fcb55c78423d67750a8be92c70a28

SHA512
88de4b4c2818650f7080a9afdcbe8764f1604bbf77f08f2ce286beb5a00e6cb30352f6180f64e7b5d9790a1e5ebefde6e62d8221e55228942d5652a1e0cd4fa6

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
98a2414b3a6062f69b5e91e8ef853e60

SHA1
a7c76d8cc77cc535d73bc6b0ee4f64527572145d

SHA256
cea0b3398c3a6ac31f4582a21afb131878dfd3e489d101af94fd3d682000dba3

SHA512
d186ac4f87a04cc56d2a120d1aa7d96f1574ac7353a7d8b237452260f11a3ebfadb556eb46ee894c75ae1bdc6dae480599c6109eb25873074546847d158dddda

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
f3396b2d90dd377ff06a1b2e046a101a

SHA1
0b3f6c85785bc2b0a3217961c1ec4adc23a2580c

SHA256
a36184592b72d66d1cd9e245ffd8206103b80223754438ffa5f2d4b2b55fe7d6

SHA512
234c5df530eab940bca5f150393c3369ac8d702a03aad658887d2fdad8ff5e6e7f80d7b8ef934f648f3628284f0461c25fa2b80c704c125d6b644d7e949a158c

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
f870424afd7b717bc6db4aeef56d5452

SHA1
b20879431efd002bababa32a58c62c57cc76dd9c

SHA256
f24681f1d2ddfbc5f4b00fdeeb952e1eb7913beea535f96d231b6e4d51b48ffa

SHA512
f51023deaa010fefff926752760cb49cbb971472b03ac10472b4c5b8a6980a235624056e90a2e14e0eb3f906088e801702de0afe0c605e42f56a1d32e7e956d9

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C:\Users\Admin\AppData\Local\8668ff74-924e-4054-80c5-15c3da9eb91f\5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483.exe
MD5
2ce98b6647a7e602cfab7414e1dd8ad2

SHA1
7798650ad9d8472d38db018cec6a8807370ce720

SHA256
5a863bf0db9d32f8ad9306822516ce069b0e055ffed134d214950797e1a6c483

SHA512
5f5243a2b076f16467c34f11de8c0d5e4f5ace543593a13f834cdc6635e9b743140441eab0d3651dae2a429930f64e0d1983c0be8e1245d3bf48a9b71d966614

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C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

Download Submit
C:\Users\Admin\AppData\Local\dacf3600-21e0-4c45-93a8-fdaa6669e8e7\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/1048-150-0x0000000003250000-0x00000000032FE000-memory.dmp

Filesize
696KB

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memory/1048-140-0x0000000000000000-mapping.dmp

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memory/1220-145-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1220-146-0x0000000000401AFA-mapping.dmp

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memory/1220-151-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1248-170-0x00000000033BE000-0x00000000033CE000-memory.dmp

Filesize
64KB

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memory/1428-149-0x0000000000000000-mapping.dmp

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memory/1808-152-0x0000000000000000-mapping.dmp

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memory/1996-120-0x0000000000000000-mapping.dmp

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memory/2144-153-0x0000000000000000-mapping.dmp

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memory/2672-116-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2672-117-0x0000000000424141-mapping.dmp

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memory/2672-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/2788-154-0x0000000000000000-mapping.dmp

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memory/3104-167-0x0000000000000000-mapping.dmp

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memory/3740-138-0x0000000003360000-0x0000000003436000-memory.dmp

Filesize
856KB

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memory/3740-131-0x0000000000000000-mapping.dmp

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memory/3740-134-0x00000000018D6000-0x0000000001952000-memory.dmp

Filesize
496KB

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memory/3832-165-0x0000000000401AFA-mapping.dmp

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memory/3852-123-0x0000000004BCE000-0x0000000004C5F000-memory.dmp

Filesize
580KB

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memory/3852-122-0x0000000000000000-mapping.dmp

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memory/3968-168-0x0000000003330000-0x0000000003334000-memory.dmp

Filesize
16KB

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memory/4024-115-0x0000000004BD7000-0x0000000004C68000-memory.dmp

Filesize
580KB

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memory/4024-118-0x0000000004C70000-0x0000000004D8B000-memory.dmp

Filesize
1.1MB

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memory/4432-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4432-125-0x0000000000424141-mapping.dmp

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memory/4608-139-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/4608-135-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/4608-136-0x00000000004A192D-mapping.dmp

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memory/5008-172-0x0000000000401AFA-mapping.dmp

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