onlylogger | 533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983

Analysis

max time kernel
37s
max time network
41s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
17-07-2022 00:32

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General

Target

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
Size

435KB
MD5

fe7a8129af968c9075a7b59d1f590135
SHA1

d818dfbd8de817570319bb767489e4822cee1f83
SHA256

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983
SHA512

fbd8df5e8213976a710d8ae4ba245a2d6baef37805afb298bbe4e033b13252e46ad7e53b493fd9a9a98bb85bf1ab08b271b0535bd757006281852786583bedea

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

Processes:

resource	yara_rule
behavioral1/memory/1396-58-0x00000000002D0000-0x0000000000319000-memory.dmp	family_onlylogger
behavioral1/memory/1396-59-0x0000000000400000-0x000000000089D000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1836 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

Processes:

taskkill.exe

pid process

1592 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1592 taskkill.exe

pid	process
1836	cmd.exe

pid	process
1592	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1592	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.execmd.exe

description	pid	process	target process
PID 1396 wrote to memory of 1836	1396	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 1396 wrote to memory of 1836	1396	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 1396 wrote to memory of 1836	1396	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 1396 wrote to memory of 1836	1396	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 1836 wrote to memory of 1592	1836	cmd.exe	taskkill.exe
PID 1836 wrote to memory of 1592	1836	cmd.exe	taskkill.exe
PID 1836 wrote to memory of 1592	1836	cmd.exe	taskkill.exe
PID 1836 wrote to memory of 1592	1836	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
"C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1396

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1836

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1592

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1396-54-0x0000000000958000-0x0000000000982000-memory.dmp

Filesize
168KB

Download
memory/1396-55-0x0000000076311000-0x0000000076313000-memory.dmp

Filesize
8KB

Download
memory/1396-57-0x0000000000958000-0x0000000000982000-memory.dmp

Filesize
168KB

Download
memory/1396-58-0x00000000002D0000-0x0000000000319000-memory.dmp

Filesize
292KB

Download
memory/1396-59-0x0000000000400000-0x000000000089D000-memory.dmp

Filesize
4.6MB

Download
memory/1592-60-0x0000000000000000-mapping.dmp

Download
memory/1836-56-0x0000000000000000-mapping.dmp

Download