onlylogger | d9cdd267e3c00ae4f70e60a45aa03f22b1a59b42526a692d0e5bde6b5f1b99d4

Resubmissions

07-01-2024 18:07

240107-wqj1bacef6 10

15-01-2022 08:36

220115-khlcmadggr 10

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-en-20211208
submitted
15-01-2022 08:36

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General

Target

b11fa73625d6cba3dd6cf98467aea533.exe
Size

419KB
MD5

b11fa73625d6cba3dd6cf98467aea533
SHA1

004d3169fb9b2b6daeec6425f6da98c99a3b63e0
SHA256

d9cdd267e3c00ae4f70e60a45aa03f22b1a59b42526a692d0e5bde6b5f1b99d4
SHA512

2bba5cfaeec13bda9ffb03a16d1c2af9d85be0ec13b00d9f79e3c4ffbd334a7db00addb5b52b4f89a84a8a57349e29115d93532f866d37b9914c6b832247fdea

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
behavioral1/memory/1596-58-0x0000000000230000-0x000000000027C000-memory.dmp	family_onlylogger
behavioral1/memory/1596-59-0x0000000000400000-0x0000000000578000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
1212	cmd.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
472	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	472	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 1212	1596	b11fa73625d6cba3dd6cf98467aea533.exe	27
PID 1596 wrote to memory of 1212	1596	b11fa73625d6cba3dd6cf98467aea533.exe	27
PID 1596 wrote to memory of 1212	1596	b11fa73625d6cba3dd6cf98467aea533.exe	27
PID 1596 wrote to memory of 1212	1596	b11fa73625d6cba3dd6cf98467aea533.exe	27
PID 1212 wrote to memory of 472	1212	cmd.exe	29
PID 1212 wrote to memory of 472	1212	cmd.exe	29
PID 1212 wrote to memory of 472	1212	cmd.exe	29
PID 1212 wrote to memory of 472	1212	cmd.exe	29

C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe
"C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b11fa73625d6cba3dd6cf98467aea533.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b11fa73625d6cba3dd6cf98467aea533.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1212
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b11fa73625d6cba3dd6cf98467aea533.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:472

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1596-54-0x00000000006DB000-0x0000000000706000-memory.dmp

Filesize
172KB

Download
memory/1596-55-0x0000000076001000-0x0000000076003000-memory.dmp

Filesize
8KB

Download
memory/1596-58-0x0000000000230000-0x000000000027C000-memory.dmp

Filesize
304KB

Download
memory/1596-59-0x0000000000400000-0x0000000000578000-memory.dmp

Filesize
1.5MB

Download