vanillarat | 38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

General

Target

38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
Size

115KB
MD5

afd5d29bfcddb00b11a869fd2016282d
SHA1

0de3328c8a0dce66d17765665b29662de75e5d15
SHA256

38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748
SHA512

ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133
SSDEEP

3072:MJZKnPE2YyJzELtyThyYeY8lNgoiJ+sX8HFvytb3Nu:MJZKBI0hyYeY4eoiJ+sCFvC

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 5 IoCs

rat

resource	yara_rule
behavioral2/memory/4368-133-0x0000000000620000-0x0000000000642000-memory.dmp	vanillarat
behavioral2/files/0x000a000000023135-143.dat	vanillarat
behavioral2/files/0x000a000000023135-148.dat	vanillarat
behavioral2/files/0x000a000000023135-149.dat	vanillarat
behavioral2/memory/1608-155-0x0000000005770000-0x0000000005780000-memory.dmp	vanillarat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Executes dropped EXE 1 IoCs

pid	Process
1608	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748 = "C:\\Users\\Admin\\AppData\\Roaming\\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe"	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4368	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 1608	4368	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe	85
PID 4368 wrote to memory of 1608	4368	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe	85
PID 4368 wrote to memory of 1608	4368	38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe	85

C:\Users\Admin\AppData\Local\Temp\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
"C:\Users\Admin\AppData\Local\Temp\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe
  "C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:1608

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Web Service

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Filesize
115KB

MD5
afd5d29bfcddb00b11a869fd2016282d

SHA1
0de3328c8a0dce66d17765665b29662de75e5d15

SHA256
38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

SHA512
ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

Download Submit
C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Filesize
115KB

MD5
afd5d29bfcddb00b11a869fd2016282d

SHA1
0de3328c8a0dce66d17765665b29662de75e5d15

SHA256
38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

SHA512
ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

Download Submit
C:\Users\Admin\AppData\Roaming\38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748.exe

Filesize
115KB

MD5
afd5d29bfcddb00b11a869fd2016282d

SHA1
0de3328c8a0dce66d17765665b29662de75e5d15

SHA256
38194b42cc180ab72aed1256447bec9b8b65910241e5a2b97ac29b0c12d95748

SHA512
ce3aaf59162768087bbb34de0767c74ee05e8f13a19559c49896f5249d36900ee14270ade74964c8cd3d8b6bcf684002cf3bddc8d14856907d2b2b2d0026f133

Download Submit
memory/1608-150-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/1608-152-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/1608-153-0x0000000009BB0000-0x0000000009C16000-memory.dmp

Filesize
408KB

Download
memory/1608-154-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/1608-155-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/4368-137-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/4368-138-0x0000000005050000-0x000000000505A000-memory.dmp

Filesize
40KB

Download
memory/4368-136-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/4368-135-0x0000000005650000-0x0000000005BF4000-memory.dmp

Filesize
5.6MB

Download
memory/4368-134-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download
memory/4368-133-0x0000000000620000-0x0000000000642000-memory.dmp

Filesize
136KB

Download
memory/4368-151-0x0000000074EC0000-0x0000000075670000-memory.dmp

Filesize
7.7MB

Download

Analysis

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