onlylogger | 8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220414-en
submitted
01/05/2022, 23:36

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General

Target
8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe
Size 359KB
Sample220501-3lvdtabccn
SHA256 8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75
MD5 c1c77cd18545ba757940a2cdace71b7b
SHA1 067a14bfefc5e075d693b19e6ecff1e372a87304
SHA512 a5e142c753d01260865aa5324aefb9447c74df2513114c8308b4c19a763a96f7ab80b746dfc4863da55c30d16c473ad3c76066c6bcc66bdeb32c768ceaff81fd
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
behavioral1/memory/1720-56-0x0000000000220000-0x0000000000266000-memory.dmp	family_onlylogger
behavioral1/memory/1720-57-0x0000000000400000-0x0000000000C33000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
852	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
1792	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1792	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 852	1720	8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe	27
PID 1720 wrote to memory of 852	1720	8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe	27
PID 1720 wrote to memory of 852	1720	8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe	27
PID 1720 wrote to memory of 852	1720	8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe	27
PID 852 wrote to memory of 1792	852	cmd.exe	29
PID 852 wrote to memory of 1792	852	cmd.exe	29
PID 852 wrote to memory of 1792	852	cmd.exe	29
PID 852 wrote to memory of 1792	852	cmd.exe	29

C:\Users\Admin\AppData\Local\Temp\8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe
"C:\Users\Admin\AppData\Local\Temp\8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:852
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8b7dda6da34ef681560f2c0c22c2dfd0c950f5dc24fa21fa09f61350095c8b75.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1792

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

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Downloads

memory/1720-54-0x0000000075711000-0x0000000075713000-memory.dmp

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memory/1720-55-0x0000000000DBA000-0x0000000000DE2000-memory.dmp

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memory/1720-56-0x0000000000220000-0x0000000000266000-memory.dmp

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memory/1720-57-0x0000000000400000-0x0000000000C33000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads