fatalrat | c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb

General

Target

c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe
Size

716KB
MD5

0c9b21dc850a12745679ba35b88cd8b4
SHA1

ff60c5e36db537d512ef260a04c555a33af09079
SHA256

c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb
SHA512

decc2b4c5bda313ba3e15b3e9118c1f4441957cf8441e4de98667a7be1eca5888d869b69e5cbfe5e2e7e6bdbd356733e1a62285fa43983fb6d3775843bc0c099
SSDEEP

12288:imx1hJi5FwJvHg1LeWbCvsgFBVAykLlnvxFnB9/x/QH:Tx1FA1LdbCvlV8v//a

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 1 IoCs

rat infostealer

resource	yara_rule
behavioral1/memory/2204-0-0x0000000010000000-0x000000001002A000-memory.dmp	fatalrat

Executes dropped EXE 2 IoCs

pid	Process
2940	Svwxya.exe
2628	Svwxya.exe

Loads dropped DLL 1 IoCs

pid	Process
2940	Svwxya.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\AppPatch\Svwxya.exe	Svwxya.exe
File created	C:\Program Files (x86)\AppPatch\Svwxya.exe	Svwxya.exe
File created	C:\Program Files (x86)\AppPatch\Svwxya.exe	c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe
File opened for modification	C:\Program Files (x86)\AppPatch\Svwxya.exe	c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	Svwxya.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Svwxya.exe

Modifies data under HKEY_USERS 22 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	Svwxya.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableLockWorkstation = "1"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	Svwxya.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Stuvwx Abcdefgh\InstallTime = "2023-11-23 15:03"	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	Svwxya.exe
Key created	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Stuvwx Abcdefgh	Svwxya.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Stuvwx Abcdefgh\Group = "Fatal"	Svwxya.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

pid	Process
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe
2628	Svwxya.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2204	c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe
Token: SeDebugPrivilege	2940	Svwxya.exe
Token: SeDebugPrivilege	2628	Svwxya.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2628	2940	Svwxya.exe	29
PID 2940 wrote to memory of 2628	2940	Svwxya.exe	29
PID 2940 wrote to memory of 2628	2940	Svwxya.exe	29
PID 2940 wrote to memory of 2628	2940	Svwxya.exe	29

C:\Users\Admin\AppData\Local\Temp\c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe
"C:\Users\Admin\AppData\Local\Temp\c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:2204

C:\Program Files (x86)\AppPatch\Svwxya.exe
"C:\Program Files (x86)\AppPatch\Svwxya.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Program Files (x86)\AppPatch\Svwxya.exe
  "C:\Program Files (x86)\AppPatch\Svwxya.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\AppPatch\Svwxya.exe

Filesize
716KB

MD5
0c9b21dc850a12745679ba35b88cd8b4

SHA1
ff60c5e36db537d512ef260a04c555a33af09079

SHA256
c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb

SHA512
decc2b4c5bda313ba3e15b3e9118c1f4441957cf8441e4de98667a7be1eca5888d869b69e5cbfe5e2e7e6bdbd356733e1a62285fa43983fb6d3775843bc0c099

Download Submit
C:\Program Files (x86)\AppPatch\Svwxya.exe

Filesize
716KB

MD5
0c9b21dc850a12745679ba35b88cd8b4

SHA1
ff60c5e36db537d512ef260a04c555a33af09079

SHA256
c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb

SHA512
decc2b4c5bda313ba3e15b3e9118c1f4441957cf8441e4de98667a7be1eca5888d869b69e5cbfe5e2e7e6bdbd356733e1a62285fa43983fb6d3775843bc0c099

Download Submit
C:\Program Files (x86)\AppPatch\Svwxya.exe

Filesize
716KB

MD5
0c9b21dc850a12745679ba35b88cd8b4

SHA1
ff60c5e36db537d512ef260a04c555a33af09079

SHA256
c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb

SHA512
decc2b4c5bda313ba3e15b3e9118c1f4441957cf8441e4de98667a7be1eca5888d869b69e5cbfe5e2e7e6bdbd356733e1a62285fa43983fb6d3775843bc0c099

Download Submit
\Program Files (x86)\AppPatch\Svwxya.exe

Filesize
716KB

MD5
0c9b21dc850a12745679ba35b88cd8b4

SHA1
ff60c5e36db537d512ef260a04c555a33af09079

SHA256
c1d0301453553dc1cba5155dbc16a1b4a2e1890a93f35171f516605e72081afb

SHA512
decc2b4c5bda313ba3e15b3e9118c1f4441957cf8441e4de98667a7be1eca5888d869b69e5cbfe5e2e7e6bdbd356733e1a62285fa43983fb6d3775843bc0c099

Download Submit
memory/2204-0-0x0000000010000000-0x000000001002A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing