onlylogger | e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd

General

Target
e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe
Size 321KB
Sample220516-p9b1gsced2
SHA256 e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd
MD5 a985347669f5a331f844379febdc1e9a
SHA1 f74947124606530474bff0b16d858609f7c8505c
SHA512 c6e1b62fb6067e3beb1f87cec5964c0ddd1e536cbf9b948348921179f9ab4ec35a1c646d6fe048afd08e933da02bb6c563efbae10ebe0ca04cc72d3dc5d909b1
MD5 SHA1 SHA512

Score

10^/10

onlylogger loader

Malware Config

Signatures

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

OnlyLogger Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1516-131-0x0000000000790000-0x00000000007D6000-memory.dmp	family_onlylogger
behavioral2/memory/1516-132-0x0000000000400000-0x00000000004F4000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.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

pid	pid_target	Process	procid_target
2168	1516	WerFault.exe	80
2368	1516	WerFault.exe	80
2652	1516	WerFault.exe	80
4948	1516	WerFault.exe	80
3932	1516	WerFault.exe	80
4828	1516	WerFault.exe	80
5024	1516	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
1648	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 3560	1516	e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe	115
PID 1516 wrote to memory of 3560	1516	e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe	115
PID 1516 wrote to memory of 3560	1516	e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe	115
PID 3560 wrote to memory of 1648	3560	cmd.exe	119
PID 3560 wrote to memory of 1648	3560	cmd.exe	119
PID 3560 wrote to memory of 1648	3560	cmd.exe	119

C:\Users\Admin\AppData\Local\Temp\e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe
"C:\Users\Admin\AppData\Local\Temp\e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 576
  2⤵
  - Program crash
  PID:2168
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 760
  2⤵
  - Program crash
  PID:2368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 836
  2⤵
  - Program crash
  PID:2652
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 864
  2⤵
  - Program crash
  PID:4948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1180
  2⤵
  - Program crash
  PID:3932
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 708
  2⤵
  - Program crash
  PID:4828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3560
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "e3bb7d5e0e74dfac43c272516d78431426f9869912cb426f6db70a156c8512fd.exe" /f
    3⤵
    - Kills process with taskkill
    PID:1648
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1224
  2⤵
  - Program crash
  PID:5024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1516 -ip 1516
1⤵
PID:768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1516 -ip 1516
1⤵
PID:536

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1516 -ip 1516
1⤵
PID:1416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1516 -ip 1516
1⤵
PID:3220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 1516 -ip 1516
1⤵
PID:4116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1516 -ip 1516
1⤵
PID:1008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 1516 -ip 1516
1⤵
PID:3264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1516 -ip 1516
1⤵
PID:2304

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1516-130-0x000000000080E000-0x0000000000836000-memory.dmp

Download

memory/1516-131-0x0000000000790000-0x00000000007D6000-memory.dmp

Download

memory/1516-132-0x0000000000400000-0x00000000004F4000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads