vanillarat | 5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
09-07-2023 16:13

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General

Target

TeamViewerSetupexe.exe
Size

152KB
MD5

3854db59d8c7964dde765803e7e380b6
SHA1

e5d981f6798cb902b7091944cdd7badafb7e0322
SHA256

5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df
SHA512

3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa
SSDEEP

3072:EJZKnPE2YyJzELtyTJyYeY8lNgoiJ+sX8HFvytbcNGInicz+:EJZKBI0JyYeY4eoiJ+sCFvPnNz+

Score

10^/10

vanillarat persistence rat

Malware Config

Signatures

VanillaRat
VanillaRat is an advanced remote administration tool coded in C#.
rat vanillarat

Vanilla Rat payload 15 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2376-54-0x00000000000A0000-0x00000000000CE000-memory.dmp	vanillarat
\Users\Admin\svchost.exe	vanillarat
C:\Users\Admin\svchost.exe	vanillarat
C:\Users\Admin\svchost.exe	vanillarat
C:\Users\Admin\svchost.exe	vanillarat
behavioral1/memory/1396-63-0x00000000012E0000-0x0000000001302000-memory.dmp	vanillarat
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe	vanillarat
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe	vanillarat
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe	vanillarat
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe	vanillarat
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe	vanillarat
\Users\Admin\AppData\Roaming\svchost.exe	vanillarat
C:\Users\Admin\AppData\Roaming\svchost.exe	vanillarat
C:\Users\Admin\AppData\Roaming\svchost.exe	vanillarat
behavioral1/memory/3068-76-0x00000000012D0000-0x00000000012F2000-memory.dmp	vanillarat

Executes dropped EXE 2 IoCs

Processes:

svchost.exesvchost.exe

pid process

1396 svchost.exe
3068 svchost.exe
Loads dropped DLL 7 IoCs

Processes:

TeamViewerSetupexe.exeWerFault.exesvchost.exe

pid process

2376 TeamViewerSetupexe.exe
2412 WerFault.exe
2412 WerFault.exe
2412 WerFault.exe
2412 WerFault.exe
2412 WerFault.exe
1396 svchost.exe

pid	process
1396	svchost.exe
3068	svchost.exe

pid	process
2376	TeamViewerSetupexe.exe
2412	WerFault.exe
2412	WerFault.exe
2412	WerFault.exe
2412	WerFault.exe
2412	WerFault.exe
1396	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-264077997-199365141-898621884-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	svchost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2412 2376 WerFault.exe TeamViewerSetupexe.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

TeamViewerSetupexe.exesvchost.exe

description pid process

Token: SeDebugPrivilege 2376 TeamViewerSetupexe.exe
Token: SeDebugPrivilege 1396 svchost.exe

pid	pid_target	process	target process
2412	2376	WerFault.exe	TeamViewerSetupexe.exe

description	pid	process
Token: SeDebugPrivilege	2376	TeamViewerSetupexe.exe
Token: SeDebugPrivilege	1396	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

TeamViewerSetupexe.exesvchost.exe

description	pid	process	target process
PID 2376 wrote to memory of 1396	2376	TeamViewerSetupexe.exe	svchost.exe
PID 2376 wrote to memory of 1396	2376	TeamViewerSetupexe.exe	svchost.exe
PID 2376 wrote to memory of 1396	2376	TeamViewerSetupexe.exe	svchost.exe
PID 2376 wrote to memory of 1396	2376	TeamViewerSetupexe.exe	svchost.exe
PID 2376 wrote to memory of 2412	2376	TeamViewerSetupexe.exe	WerFault.exe
PID 2376 wrote to memory of 2412	2376	TeamViewerSetupexe.exe	WerFault.exe
PID 2376 wrote to memory of 2412	2376	TeamViewerSetupexe.exe	WerFault.exe
PID 2376 wrote to memory of 2412	2376	TeamViewerSetupexe.exe	WerFault.exe
PID 1396 wrote to memory of 3068	1396	svchost.exe	svchost.exe
PID 1396 wrote to memory of 3068	1396	svchost.exe	svchost.exe
PID 1396 wrote to memory of 3068	1396	svchost.exe	svchost.exe
PID 1396 wrote to memory of 3068	1396	svchost.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
"C:\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2376

C:\Users\Admin\svchost.exe
"C:\Users\Admin\svchost.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1396

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
PID:3068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 896
2⤵
- Loads dropped DLL
- Program crash
PID:2412

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
C:\Users\Admin\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
C:\Users\Admin\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
C:\Users\Admin\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
Filesize
152KB

MD5
3854db59d8c7964dde765803e7e380b6

SHA1
e5d981f6798cb902b7091944cdd7badafb7e0322

SHA256
5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

SHA512
3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa

Download Submit
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
Filesize
152KB

MD5
3854db59d8c7964dde765803e7e380b6

SHA1
e5d981f6798cb902b7091944cdd7badafb7e0322

SHA256
5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

SHA512
3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa

Download Submit
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
Filesize
152KB

MD5
3854db59d8c7964dde765803e7e380b6

SHA1
e5d981f6798cb902b7091944cdd7badafb7e0322

SHA256
5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

SHA512
3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa

Download Submit
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
Filesize
152KB

MD5
3854db59d8c7964dde765803e7e380b6

SHA1
e5d981f6798cb902b7091944cdd7badafb7e0322

SHA256
5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

SHA512
3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa

Download Submit
\Users\Admin\AppData\Local\Temp\TeamViewerSetupexe.exe
Filesize
152KB

MD5
3854db59d8c7964dde765803e7e380b6

SHA1
e5d981f6798cb902b7091944cdd7badafb7e0322

SHA256
5a6dfde115172be8d295c748b4a681aabc1e7c105267e84e552c0c24518764df

SHA512
3c239f667c92716ae6ac2e01cf208d18b4ab0eab61d776b757b151ff9899ba8648593c37b0b9f7c26f672255c07951b62b1cd1fb0ac84431f0aaf18690db83fa

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
\Users\Admin\svchost.exe
Filesize
115KB

MD5
99198c628ae018b8b7d043514141bded

SHA1
fa9b200d99530fb5efb36e7f928ad01f4dec5ed8

SHA256
160c2339126bc7800801d9d41d688f88d2d2656f711e8bc53a74fe179510e895

SHA512
0dd0f1210120d2a3838135f250460cac64ad50ee4d7393409923dadde0f8a791288ef0a2cba96e6b9ee8bb27e190b403d3c1dfd2f4a0e2262543100fdd404f4a

Download Submit
memory/1396-63-0x00000000012E0000-0x0000000001302000-memory.dmp

Filesize
136KB

Download
memory/2376-54-0x00000000000A0000-0x00000000000CE000-memory.dmp

Filesize
184KB

Download
memory/3068-76-0x00000000012D0000-0x00000000012F2000-memory.dmp

Filesize
136KB

Download
memory/3068-77-0x0000000004790000-0x00000000047D0000-memory.dmp

Filesize
256KB

Download