fatalrat | 35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8

Analysis

max time kernel
137s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2023 11:27

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General

Target

35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
Size

2.7MB
MD5

43fb1c696f55a56f84c2eaba4bfcb3f3
SHA1

839fdc1ab88ff7c3e29bfc8caf8f163fd6bcc6ff
SHA256

35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8
SHA512

bd7ba1074c5c2fcf1b357bbf900c43a1763574732c70350668318464cba99cd3aa904949fc0c9694395976ed9172d9ddbddd4555acedeb5c27a5565d4dc6a37d
SSDEEP

49152:dLY5etGvnVEAjHWgYGe7dquNGAnOtNmpHdHEIyQrZX6uaMmS83/VcYpD/UVJ1Bcr:G0tGvnVhHWgYGoquNLnOtNmpHdk4X6uk

Score

10^/10

fatalrat infostealer rat

Malware Config

Signatures

FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
infostealer rat fatalrat

Fatal Rat payload 2 IoCs

rat infostealer

resource	yara_rule
behavioral2/memory/4424-30-0x0000000000910000-0x000000000093A000-memory.dmp	fatalrat
behavioral2/memory/744-53-0x0000000001F20000-0x0000000001F4A000-memory.dmp	fatalrat

Checks computer location settings 2 TTPs 2 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-1-5-21-596315103-1488671723-776734015-1000\Control Panel\International\Geo\Nation	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
Key value queried	\REGISTRY\USER\S-1-5-21-596315103-1488671723-776734015-1000\Control Panel\International\Geo\Nation	QQMicroGameBox.exe

Executes dropped EXE 2 IoCs

pid	Process
4424	QQMicroGameBox.exe
744	QQMicroGameBox.exe

Loads dropped DLL 2 IoCs

pid	Process
4424	QQMicroGameBox.exe
744	QQMicroGameBox.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Application Verifier\sentry.dll	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
File opened for modification	C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe	QQMicroGameBox.exe
File created	C:\Program Files (x86)\Application Verifier\cvsd.xml	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
File created	C:\Program Files (x86)\Application Verifier\afd.bin	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
File created	C:\Program Files (x86)\Application Verifier\fufu.bin	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
File created	C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4424	QQMicroGameBox.exe
Token: SeDebugPrivilege	744	QQMicroGameBox.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 4424	1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe	89
PID 1848 wrote to memory of 4424	1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe	89
PID 1848 wrote to memory of 4424	1848	35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe	89
PID 4424 wrote to memory of 744	4424	QQMicroGameBox.exe	90
PID 4424 wrote to memory of 744	4424	QQMicroGameBox.exe	90
PID 4424 wrote to memory of 744	4424	QQMicroGameBox.exe	90

C:\Users\Admin\AppData\Local\Temp\35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe
"C:\Users\Admin\AppData\Local\Temp\35cc229675402eb4d0875022047ecdf36e33acdac5275599fd746cd639046bc8.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe
  "C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Users\Admin\AppData\Local\QQMicroGameBox.exe
    "C:\Users\Admin\AppData\Local\QQMicroGameBox.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    PID:744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe

Filesize
1.9MB

MD5
7f8f210a6f11a1e556b8dd7bb26e2e7d

SHA1
49a1e7d58e43cc5e177de7857b8fa9c8a6f6d1c1

SHA256
c7109e87b0d20b842816f055a8714f0eebccfa99a031e6b7a472397736329af7

SHA512
1c414aa37879bed96a82a1d14658e58da6d085cd0a6d523a65780c9dc585d78afa99eefc64dc5d9961702dc5fdd8b647f9475eed25ef67287de01f82962921a7

Download Submit
C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe

Filesize
1.9MB

MD5
7f8f210a6f11a1e556b8dd7bb26e2e7d

SHA1
49a1e7d58e43cc5e177de7857b8fa9c8a6f6d1c1

SHA256
c7109e87b0d20b842816f055a8714f0eebccfa99a031e6b7a472397736329af7

SHA512
1c414aa37879bed96a82a1d14658e58da6d085cd0a6d523a65780c9dc585d78afa99eefc64dc5d9961702dc5fdd8b647f9475eed25ef67287de01f82962921a7

Download Submit
C:\Program Files (x86)\Application Verifier\QQMicroGameBox.exe

Filesize
1.9MB

MD5
7f8f210a6f11a1e556b8dd7bb26e2e7d

SHA1
49a1e7d58e43cc5e177de7857b8fa9c8a6f6d1c1

SHA256
c7109e87b0d20b842816f055a8714f0eebccfa99a031e6b7a472397736329af7

SHA512
1c414aa37879bed96a82a1d14658e58da6d085cd0a6d523a65780c9dc585d78afa99eefc64dc5d9961702dc5fdd8b647f9475eed25ef67287de01f82962921a7

Download Submit
C:\Program Files (x86)\Application Verifier\afd.bin

Filesize
198KB

MD5
05053c75e7990b751933d1bfffdb7ad1

SHA1
ce609dfac995d70596b9df22ed6a8cd4e2da96d3

SHA256
7ef58d246cc28f19808b28613a287b2cc2d2f359b17b5ca9a878e028e0a9bfae

SHA512
8138755349167a473b1e5046c3af4fc6e097315e3e0e6eff6378d1123e2ebb9b36c59863ba8b43c8bc73be4f98721e81baf418b603fe07f3193a58b05937d97e

Download Submit
C:\Program Files (x86)\Application Verifier\sentry.dll

Filesize
84KB

MD5
1d78cc969d6d164f7c9c6605214f7f10

SHA1
ab8a49fb4905bdd492671958a957b15060706daa

SHA256
befef93e2df09e4bcad8518f8611bb615ef004bc0fabc4899e6e767184708cc6

SHA512
a6d9f25d22cdf61d8f985bb219a4fcb14fe65de9ac0483cc74b7abbab537e2ca08b030714d1de2ef05da8fe4db41838adfc2c00aad4b671fd2c8a30c53865b69

Download Submit
C:\Program Files (x86)\Application Verifier\sentry.dll

Filesize
84KB

MD5
1d78cc969d6d164f7c9c6605214f7f10

SHA1
ab8a49fb4905bdd492671958a957b15060706daa

SHA256
befef93e2df09e4bcad8518f8611bb615ef004bc0fabc4899e6e767184708cc6

SHA512
a6d9f25d22cdf61d8f985bb219a4fcb14fe65de9ac0483cc74b7abbab537e2ca08b030714d1de2ef05da8fe4db41838adfc2c00aad4b671fd2c8a30c53865b69

Download Submit
C:\Program Files (x86)\Application Verifier\sentry.dll

Filesize
84KB

MD5
1d78cc969d6d164f7c9c6605214f7f10

SHA1
ab8a49fb4905bdd492671958a957b15060706daa

SHA256
befef93e2df09e4bcad8518f8611bb615ef004bc0fabc4899e6e767184708cc6

SHA512
a6d9f25d22cdf61d8f985bb219a4fcb14fe65de9ac0483cc74b7abbab537e2ca08b030714d1de2ef05da8fe4db41838adfc2c00aad4b671fd2c8a30c53865b69

Download Submit
C:\Users\Admin\AppData\Local\QQMicroGameBox.exe

Filesize
1.9MB

MD5
7f8f210a6f11a1e556b8dd7bb26e2e7d

SHA1
49a1e7d58e43cc5e177de7857b8fa9c8a6f6d1c1

SHA256
c7109e87b0d20b842816f055a8714f0eebccfa99a031e6b7a472397736329af7

SHA512
1c414aa37879bed96a82a1d14658e58da6d085cd0a6d523a65780c9dc585d78afa99eefc64dc5d9961702dc5fdd8b647f9475eed25ef67287de01f82962921a7

Download Submit
C:\Users\Admin\AppData\Local\QQMicroGameBox.exe

Filesize
1.9MB

MD5
7f8f210a6f11a1e556b8dd7bb26e2e7d

SHA1
49a1e7d58e43cc5e177de7857b8fa9c8a6f6d1c1

SHA256
c7109e87b0d20b842816f055a8714f0eebccfa99a031e6b7a472397736329af7

SHA512
1c414aa37879bed96a82a1d14658e58da6d085cd0a6d523a65780c9dc585d78afa99eefc64dc5d9961702dc5fdd8b647f9475eed25ef67287de01f82962921a7

Download Submit
memory/744-53-0x0000000001F20000-0x0000000001F4A000-memory.dmp

Filesize
168KB

Download
memory/744-52-0x0000000001EB0000-0x0000000001F14000-memory.dmp

Filesize
400KB

Download
memory/1848-12-0x0000000002E50000-0x0000000002EB4000-memory.dmp

Filesize
400KB

Download
memory/1848-7-0x0000000010000000-0x0000000010022000-memory.dmp

Filesize
136KB

Download
memory/4424-25-0x0000000010000000-0x0000000010031000-memory.dmp

Filesize
196KB

Download
memory/4424-26-0x0000000001D30000-0x0000000001D94000-memory.dmp

Filesize
400KB

Download
memory/4424-30-0x0000000000910000-0x000000000093A000-memory.dmp

Filesize
168KB

Download