djvu | 51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74

Analysis

max time kernel
142s
max time network
124s
platform
windows10_x64
resource
win10-en-20210920
submitted
21-10-2021 18:20

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General

Target

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
Size

781KB
MD5

f2faf05a926051123c391339c2c327ed
SHA1

8e6c2af07dcf04a4a60e0f3b1e5f8d1ba8c98665
SHA256

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74
SHA512

570ba7b0ee507a2ea4551f73e3c32c900197a8f2e33e9d884c41d4123b13fef7ddaab6d3a03056512d9f760b1ad6ecadd80cf29dc869621a7613edea876fc9e7

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

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/4372-115-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4372-116-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/3940-118-0x0000000004D30000-0x0000000004E4B000-memory.dmp	family_djvu
behavioral1/memory/4372-121-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4032-124-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/4032-125-0x0000000000400000-0x0000000000537000-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/912-135-0x0000000004BA0000-0x0000000004C76000-memory.dmp	family_vidar
behavioral1/memory/1040-136-0x00000000004A18CD-mapping.dmp	family_vidar
behavioral1/memory/1040-134-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/1040-138-0x0000000000400000-0x00000000004D9000-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

912 build2.exe
1040 build2.exe
1512 build3.exe
1756 build3.exe
4884 mstsca.exe
1644 mstsca.exe
5108 mstsca.exe
2816 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

1040 build2.exe
1040 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

4504 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
912	build2.exe
1040	build2.exe
1512	build3.exe
1756	build3.exe
4884	mstsca.exe
1644	mstsca.exe
5108	mstsca.exe
2816	mstsca.exe

pid	process
1040	build2.exe
1040	build2.exe

pid	process
4504	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\20bee160-1c0b-4d33-9fb1-5ab8c70a65f1\\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe\" --AutoStart"	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.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

16 api.2ip.ua
17 api.2ip.ua
26 api.2ip.ua

flow	ioc
16	api.2ip.ua
17	api.2ip.ua
26	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 3940 set thread context of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 set thread context of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 912 set thread context of 1040	912	build2.exe	build2.exe
PID 1512 set thread context of 1756	1512	build3.exe	build3.exe
PID 4884 set thread context of 1644	4884	mstsca.exe	mstsca.exe
PID 5108 set thread context of 2816	5108	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

1864 schtasks.exe
3004 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4236 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2712 taskkill.exe

pid	process
1864	schtasks.exe
3004	schtasks.exe

pid	process
4236	timeout.exe

pid	process
2712	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exebuild2.exe

pid	process
4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe
1040	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2712 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2712	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 3940 wrote to memory of 4372	3940	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 4372 wrote to memory of 4504	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	icacls.exe
PID 4372 wrote to memory of 4504	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	icacls.exe
PID 4372 wrote to memory of 4504	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	icacls.exe
PID 4372 wrote to memory of 772	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 4372 wrote to memory of 772	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 4372 wrote to memory of 772	4372	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 772 wrote to memory of 4032	772	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
PID 4032 wrote to memory of 912	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build2.exe
PID 4032 wrote to memory of 912	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build2.exe
PID 4032 wrote to memory of 912	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 912 wrote to memory of 1040	912	build2.exe	build2.exe
PID 4032 wrote to memory of 1512	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build3.exe
PID 4032 wrote to memory of 1512	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build3.exe
PID 4032 wrote to memory of 1512	4032	51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1512 wrote to memory of 1756	1512	build3.exe	build3.exe
PID 1756 wrote to memory of 1864	1756	build3.exe	schtasks.exe
PID 1756 wrote to memory of 1864	1756	build3.exe	schtasks.exe
PID 1756 wrote to memory of 1864	1756	build3.exe	schtasks.exe
PID 1040 wrote to memory of 2484	1040	build2.exe	cmd.exe
PID 1040 wrote to memory of 2484	1040	build2.exe	cmd.exe
PID 1040 wrote to memory of 2484	1040	build2.exe	cmd.exe
PID 2484 wrote to memory of 2712	2484	cmd.exe	taskkill.exe
PID 2484 wrote to memory of 2712	2484	cmd.exe	taskkill.exe
PID 2484 wrote to memory of 2712	2484	cmd.exe	taskkill.exe
PID 2484 wrote to memory of 4236	2484	cmd.exe	timeout.exe
PID 2484 wrote to memory of 4236	2484	cmd.exe	timeout.exe
PID 2484 wrote to memory of 4236	2484	cmd.exe	timeout.exe
PID 4884 wrote to memory of 1644	4884	mstsca.exe	mstsca.exe
PID 4884 wrote to memory of 1644	4884	mstsca.exe	mstsca.exe
PID 4884 wrote to memory of 1644	4884	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
"C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3940

C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
"C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4372

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\20bee160-1c0b-4d33-9fb1-5ab8c70a65f1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:4504

C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
"C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:772

C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
"C:\Users\Admin\AppData\Local\Temp\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4032

C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe
"C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:912

C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe
"C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1040

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\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:2484

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2712

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:4236

C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe
"C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1512

C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe
"C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1756

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:1864

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:4884

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:1644

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:3004

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:5108

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:2816

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

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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
50d9d5311b74576fbbb5c9f204fdc16b

SHA1
7dd97b713e33f287440441aa3bb7966a2cb68321

SHA256
d76a71e8dfd6961d4912a23b2fd207f2a93c67523dfcda252358eafa5821b2ad

SHA512
67d02ce79bb8fd641783ba12ab5587900a03416627939084ce87f22b42ca7d50765947e2238b3c6a70a74bce3c9233b486aaa10feb57e714646e4d02c0c926c0

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
8f19b97ffda28eb06efc2181fd126b9c

SHA1
142443021d6ffaf32d3d60635d0edf540a039f2e

SHA256
49607d1b931a79642c5268292b4f16f2db7ec77b53f8abddbc0cce36ed88e3f7

SHA512
6577704c531cc07d1ae8d61dfe6d8735d29d1386038fa9e3f5580c80c30dc04570ec0160f51903d05b180c4af68f0eb8e23e2106c3bb367afd32d033aae031e6

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
c8ed742b0591c5c62fc393e15493c545

SHA1
50da3b44dd7b9cd80f017c882ffa000473ac8539

SHA256
549ad93b48994b3e42a1877668fa24cd58c3928fdd34701ec978a1f72ba19830

SHA512
86fb495075f3a77c97900dcf8eb789612886725cf0548f7ed38c90ac30fceb6b2821760c6873fbfcc397a17883df3723bf46393bdea56a0a7b62399723082f93

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
1eaa3bdbfc98a5e3a56eefd05f7fb56d

SHA1
e0096050bb8a0f32bb497c5ef2c0d488b68020c4

SHA256
2741d3d5f06b6a65768ae29ad52c09e9f182a702779b3f5208eba42a0e3198c2

SHA512
0c6536b221a342d0f4101495b20369b9191f180d316d0ada45728fd0c971097865bf9a18e9573311ebd126708bb4e3b2de1ce6c06f03ce730f672dc231c054fe

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C:\Users\Admin\AppData\Local\20bee160-1c0b-4d33-9fb1-5ab8c70a65f1\51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74.exe
MD5
f2faf05a926051123c391339c2c327ed

SHA1
8e6c2af07dcf04a4a60e0f3b1e5f8d1ba8c98665

SHA256
51db2066dbf004ccc875dac57272043c66509ee5ec918fa2107fec93f5940a74

SHA512
570ba7b0ee507a2ea4551f73e3c32c900197a8f2e33e9d884c41d4123b13fef7ddaab6d3a03056512d9f760b1ad6ecadd80cf29dc869621a7613edea876fc9e7

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build2.exe
MD5
a2ef57bbe3a8af95196a419a7962bfaa

SHA1
1a0c42723cd1e2e947f904619de7fcea5ca4a183

SHA256
4bc52cd8296fcffc22b5ca8ebf2b161260d71c8d34658f45c9c93cf6d65749e9

SHA512
ca4781632cc0fb2c53f1ae0d0b798da386514f58b6a48845197eea05da7af162405dee1d4b139e661798c29a095e50cdde9f193dea4a9c5366ee763a899ac160

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\f5363fef-2bbd-4473-89e1-9e5558954a8c\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/772-122-0x0000000000000000-mapping.dmp

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memory/912-130-0x0000000000000000-mapping.dmp

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memory/912-133-0x00000000030D9000-0x0000000003155000-memory.dmp

Filesize
496KB

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memory/912-135-0x0000000004BA0000-0x0000000004C76000-memory.dmp

Filesize
856KB

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memory/1040-138-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/1040-134-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/1040-136-0x00000000004A18CD-mapping.dmp

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memory/1512-142-0x0000000003499000-0x00000000034A9000-memory.dmp

Filesize
64KB

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memory/1512-149-0x00000000032A0000-0x00000000032A4000-memory.dmp

Filesize
16KB

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memory/1512-139-0x0000000000000000-mapping.dmp

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memory/1644-164-0x0000000000401AFA-mapping.dmp

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memory/1756-146-0x0000000000401AFA-mapping.dmp

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memory/1756-150-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1756-145-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1864-148-0x0000000000000000-mapping.dmp

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memory/2484-151-0x0000000000000000-mapping.dmp

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memory/2712-152-0x0000000000000000-mapping.dmp

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memory/2816-170-0x0000000000401AFA-mapping.dmp

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memory/3004-166-0x0000000000000000-mapping.dmp

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memory/3940-117-0x0000000004C90000-0x0000000004D21000-memory.dmp

Filesize
580KB

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memory/3940-118-0x0000000004D30000-0x0000000004E4B000-memory.dmp

Filesize
1.1MB

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memory/4032-125-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4032-124-0x0000000000424141-mapping.dmp

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memory/4236-153-0x0000000000000000-mapping.dmp

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memory/4372-116-0x0000000000424141-mapping.dmp

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memory/4372-115-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4372-121-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/4504-119-0x0000000000000000-mapping.dmp

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memory/4884-162-0x0000000003399000-0x00000000033A9000-memory.dmp

Filesize
64KB

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