onlylogger | 5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a

General

Target

5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
Size

435KB
MD5

745e587c3cf97e13028cb0dea38d7e8f
SHA1

f046ffbc0f66c24d075100862c82c99e61958f62
SHA256

5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a
SHA512

9a339d0e9fd5dac834b80314e3390ebb4cc5dc48848a9f9fdd647d4c543de275bef010c01d34af1264fd111d8be650d388c4a3aa4efc7fb43d23c9e1ef1f19a8

Score

10^/10

onlylogger loader

Malware Config

Signatures

OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4260-131-0x0000000000AF0000-0x0000000000B39000-memory.dmp	family_onlylogger
behavioral2/memory/4260-132-0x0000000000400000-0x000000000089C000-memory.dmp	family_onlylogger
behavioral2/memory/4260-135-0x0000000000400000-0x000000000089C000-memory.dmp	family_onlylogger

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

Processes:

5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe

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

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
2300	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
3616	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
1056	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
4220	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
4480	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
4316	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
4784	4260	WerFault.exe	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

768 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 768 taskkill.exe

pid	process
768	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	768	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.execmd.exe

description	pid	process	target process
PID 4260 wrote to memory of 380	4260	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe	cmd.exe
PID 4260 wrote to memory of 380	4260	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe	cmd.exe
PID 4260 wrote to memory of 380	4260	5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe	cmd.exe
PID 380 wrote to memory of 768	380	cmd.exe	taskkill.exe
PID 380 wrote to memory of 768	380	cmd.exe	taskkill.exe
PID 380 wrote to memory of 768	380	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe
"C:\Users\Admin\AppData\Local\Temp\5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 688
2⤵
- Program crash
PID:2300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 712
2⤵
- Program crash
PID:3616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 944
2⤵
- Program crash
PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 796
2⤵
- Program crash
PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 796
2⤵
- Program crash
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 988
2⤵
- Program crash
PID:4316

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:380

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "5083a072f5be065e151d3116ac3f78b0a9322897f9c2fe9e18d0c477b943540a.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 944
2⤵
- Program crash
PID:4784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 4260 -ip 4260
1⤵
PID:804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 4260 -ip 4260
1⤵
PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4260 -ip 4260
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4260 -ip 4260
1⤵
PID:4144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4260 -ip 4260
1⤵
PID:4324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 4260 -ip 4260
1⤵
PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 620 -p 4260 -ip 4260
1⤵
PID:2264

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/380-133-0x0000000000000000-mapping.dmp

Download
memory/768-134-0x0000000000000000-mapping.dmp

Download
memory/4260-130-0x00000000008D3000-0x00000000008FC000-memory.dmp

Filesize
164KB

Download
memory/4260-131-0x0000000000AF0000-0x0000000000B39000-memory.dmp

Filesize
292KB

Download
memory/4260-132-0x0000000000400000-0x000000000089C000-memory.dmp

Filesize
4.6MB

Download
memory/4260-135-0x0000000000400000-0x000000000089C000-memory.dmp

Filesize
4.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads