onlylogger | c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20-12-2022 11:21

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General

Target

c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe
Size

416KB
MD5

42100baf34c4b1b0e89f1c2ef94cf8f8
SHA1

b3fff2af153383c85807db00522f81508b90c17c
SHA256

c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424
SHA512

d20c2ce366072782a49a87d3244584fe94059383e52cd3c6c964b37dac911828ae332f84110ac3f88d42c287243eb4eff0dafc34b6079a291cbf211a5b2eae34
SSDEEP

6144:+KSp7sxXMESXp+aTd+X7IJmSGPiu7ITsq9wVfG:+ZpvhoaTd+SmSGKu7Y

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/456-58-0x0000000000400000-0x000000000046F000-memory.dmp	family_onlylogger
behavioral1/memory/456-57-0x0000000000260000-0x00000000002B1000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1956 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

1716 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1716 taskkill.exe

pid	process
1956	cmd.exe

pid	process
1716	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1716	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.execmd.exe

description	pid	process	target process
PID 456 wrote to memory of 1956	456	c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe	cmd.exe
PID 456 wrote to memory of 1956	456	c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe	cmd.exe
PID 456 wrote to memory of 1956	456	c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe	cmd.exe
PID 456 wrote to memory of 1956	456	c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe	cmd.exe
PID 1956 wrote to memory of 1716	1956	cmd.exe	taskkill.exe
PID 1956 wrote to memory of 1716	1956	cmd.exe	taskkill.exe
PID 1956 wrote to memory of 1716	1956	cmd.exe	taskkill.exe
PID 1956 wrote to memory of 1716	1956	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe
"C:\Users\Admin\AppData\Local\Temp\c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:456

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe" & exit
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "c1129e176c471c9fad5d25605c2628af02449d422be69788e53501abfbbc7424.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1716

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

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Downloads

memory/456-54-0x0000000074F01000-0x0000000074F03000-memory.dmp

Filesize
8KB

Download
memory/456-58-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/456-57-0x0000000000260000-0x00000000002B1000-memory.dmp

Filesize
324KB

Download
memory/456-56-0x0000000000230000-0x000000000025E000-memory.dmp

Filesize
184KB

Download
memory/1716-59-0x0000000000000000-mapping.dmp

Download
memory/1956-55-0x0000000000000000-mapping.dmp

Download