onlylogger | 55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b

General

Target

55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
Size

434KB
MD5

3ee62ae7b37bfdbc36a3a40beb84b3cf
SHA1

f22015edba4903eb3883bd482436674a09e3bc79
SHA256

55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b
SHA512

8260f37bd885f264b43f5668f8f0bb6511abe1eebffcac3bf06de661f252ee4320c785ee6a7964944e4aa211f70ebf11194b942f53570f4fa06c3576e110a96c

Score

10^/10

onlylogger loader

Malware Config

Signatures

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

OnlyLogger payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4936-131-0x0000000001040000-0x0000000001089000-memory.dmp	family_onlylogger
behavioral2/memory/4936-132-0x0000000000400000-0x000000000103D000-memory.dmp	family_onlylogger
behavioral2/memory/4936-136-0x0000000001040000-0x0000000001089000-memory.dmp	family_onlylogger
behavioral2/memory/4936-137-0x0000000000400000-0x000000000103D000-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:

55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.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
3232	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
4308	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
4224	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
1244	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
3836	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
4628	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
4860	4936	WerFault.exe	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1908 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1908 taskkill.exe

pid	process
1908	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1908	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.execmd.exe

description	pid	process	target process
PID 4936 wrote to memory of 4984	4936	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe	cmd.exe
PID 4936 wrote to memory of 4984	4936	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe	cmd.exe
PID 4936 wrote to memory of 4984	4936	55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe	cmd.exe
PID 4984 wrote to memory of 1908	4984	cmd.exe	taskkill.exe
PID 4984 wrote to memory of 1908	4984	cmd.exe	taskkill.exe
PID 4984 wrote to memory of 1908	4984	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe
"C:\Users\Admin\AppData\Local\Temp\55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 712
2⤵
- Program crash
PID:3232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 784
2⤵
- Program crash
PID:4308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 788
2⤵
- Program crash
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 928
2⤵
- Program crash
PID:1244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 920
2⤵
- Program crash
PID:3836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 764
2⤵
- Program crash
PID:4628

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4984

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "55d7d5a4addb1a4bc1af28941928a8e42070dca6577bf6e13ee6dcf75cb93e6b.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1908

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4936 -s 1032
2⤵
- Program crash
PID:4860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4936 -ip 4936
1⤵
PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4936 -ip 4936
1⤵
PID:4340

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4936 -ip 4936
1⤵
PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4936 -ip 4936
1⤵
PID:3444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4936 -ip 4936
1⤵
PID:3988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4936 -ip 4936
1⤵
PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 4936 -ip 4936
1⤵
PID:4976

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

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Downloads

memory/1908-134-0x0000000000000000-mapping.dmp

Download
memory/4936-130-0x0000000001123000-0x000000000114C000-memory.dmp

Filesize
164KB

Download
memory/4936-131-0x0000000001040000-0x0000000001089000-memory.dmp

Filesize
292KB

Download
memory/4936-132-0x0000000000400000-0x000000000103D000-memory.dmp

Filesize
12.2MB

Download
memory/4936-135-0x0000000001123000-0x000000000114C000-memory.dmp

Filesize
164KB

Download
memory/4936-136-0x0000000001040000-0x0000000001089000-memory.dmp

Filesize
292KB

Download
memory/4936-137-0x0000000000400000-0x000000000103D000-memory.dmp

Filesize
12.2MB

Download
memory/4984-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads