vanillarat | 5457e63322d9eed080807b8fcc91bf1db6b71418f9f56a28a1f77e3de2e9053f

Analysis

max time kernel
72s
max time network
84s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-01-2023 04:57

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General

Target

user-PC.exe
Size

114KB
MD5

13339515c6424f70fdfcbfa1d5f22cba
SHA1

24947a5af2576155e13b2af69337d645ccd9ccff
SHA256

5457e63322d9eed080807b8fcc91bf1db6b71418f9f56a28a1f77e3de2e9053f
SHA512

f49203cd23e7ee614d1ab89453d29e02e93c0e0814eff27c841b825493ca3842dd88861769df87c9c7df31b568f46eba56f833c0622a7d85556c3bc522740544
SSDEEP

3072:EgZApdYrD28fbJB2yLtyTkbjjxK3QdjrxivW+DXnH4vymbs1j:E/pe1J0kbXtrxivW+D34vq

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

Processes:

resource	yara_rule
behavioral1/memory/1800-54-0x0000000000EC0000-0x0000000000EE2000-memory.dmp	vanillarat
\Users\Admin\AppData\Roaming\user-PC.exe	vanillarat
C:\Users\Admin\AppData\Roaming\user-PC.exe	vanillarat
C:\Users\Admin\AppData\Roaming\user-PC.exe	vanillarat
behavioral1/memory/596-60-0x0000000000090000-0x00000000000B2000-memory.dmp	vanillarat

Executes dropped EXE 1 IoCs

Processes:

user-PC.exe

pid process

596 user-PC.exe
Loads dropped DLL 1 IoCs

Processes:

user-PC.exe

pid process

1800 user-PC.exe

pid	process
596	user-PC.exe

pid	process
1800	user-PC.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

user-PC.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\user-PC = "C:\\Users\\Admin\\AppData\\Roaming\\user-PC.exe"	user-PC.exe

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

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

user-PC.exe

description pid process

Token: SeDebugPrivilege 1800 user-PC.exe

description	pid	process
Token: SeDebugPrivilege	1800	user-PC.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

user-PC.exe

description	pid	process	target process
PID 1800 wrote to memory of 596	1800	user-PC.exe	user-PC.exe
PID 1800 wrote to memory of 596	1800	user-PC.exe	user-PC.exe
PID 1800 wrote to memory of 596	1800	user-PC.exe	user-PC.exe
PID 1800 wrote to memory of 596	1800	user-PC.exe	user-PC.exe

C:\Users\Admin\AppData\Local\Temp\user-PC.exe
"C:\Users\Admin\AppData\Local\Temp\user-PC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800

C:\Users\Admin\AppData\Roaming\user-PC.exe
"C:\Users\Admin\AppData\Roaming\user-PC.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:596

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

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\user-PC.exe
Filesize
114KB

MD5
13339515c6424f70fdfcbfa1d5f22cba

SHA1
24947a5af2576155e13b2af69337d645ccd9ccff

SHA256
5457e63322d9eed080807b8fcc91bf1db6b71418f9f56a28a1f77e3de2e9053f

SHA512
f49203cd23e7ee614d1ab89453d29e02e93c0e0814eff27c841b825493ca3842dd88861769df87c9c7df31b568f46eba56f833c0622a7d85556c3bc522740544

Download Submit
C:\Users\Admin\AppData\Roaming\user-PC.exe
Filesize
114KB

MD5
13339515c6424f70fdfcbfa1d5f22cba

SHA1
24947a5af2576155e13b2af69337d645ccd9ccff

SHA256
5457e63322d9eed080807b8fcc91bf1db6b71418f9f56a28a1f77e3de2e9053f

SHA512
f49203cd23e7ee614d1ab89453d29e02e93c0e0814eff27c841b825493ca3842dd88861769df87c9c7df31b568f46eba56f833c0622a7d85556c3bc522740544

Download Submit
\Users\Admin\AppData\Roaming\user-PC.exe
Filesize
114KB

MD5
13339515c6424f70fdfcbfa1d5f22cba

SHA1
24947a5af2576155e13b2af69337d645ccd9ccff

SHA256
5457e63322d9eed080807b8fcc91bf1db6b71418f9f56a28a1f77e3de2e9053f

SHA512
f49203cd23e7ee614d1ab89453d29e02e93c0e0814eff27c841b825493ca3842dd88861769df87c9c7df31b568f46eba56f833c0622a7d85556c3bc522740544

Download Submit
memory/596-57-0x0000000000000000-mapping.dmp

Download
memory/596-60-0x0000000000090000-0x00000000000B2000-memory.dmp

Filesize
136KB

Download
memory/1800-54-0x0000000000EC0000-0x0000000000EE2000-memory.dmp

Filesize
136KB

Download
memory/1800-55-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download