Malware Analysis Report

2025-01-02 06:51

Sample ID 220503-za4xbsefcr
Target 76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb
SHA256 76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb
Tags
onlylogger loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb

Threat Level: Known bad

The file 76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb was found to be: Known bad.

Malicious Activity Summary

onlylogger loader

OnlyLogger

OnlyLogger Payload

Checks computer location settings

Deletes itself

Program crash

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-03 20:31

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-03 20:31

Reported

2022-05-03 20:34

Platform

win7-20220414-en

Max time kernel

43s

Max time network

46s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe"

Signatures

OnlyLogger

loader onlylogger

OnlyLogger Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe

"C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 gc-partners.in udp

Files

memory/1092-54-0x0000000075F61000-0x0000000075F63000-memory.dmp

memory/1092-56-0x0000000000220000-0x0000000000266000-memory.dmp

memory/1092-55-0x000000000061B000-0x0000000000643000-memory.dmp

memory/1092-57-0x0000000000400000-0x00000000004F6000-memory.dmp

memory/1080-58-0x0000000000000000-mapping.dmp

memory/2004-59-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-03 20:31

Reported

2022-05-03 20:34

Platform

win10v2004-20220414-en

Max time kernel

90s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe"

Signatures

OnlyLogger

loader onlylogger

OnlyLogger Payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe N/A

Enumerates physical storage devices

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe

"C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4332 -ip 4332

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "76f6e33768263f39b20553145eb73e2977e8ea2d054bdb4f2a904557a05ea1bb.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 1252

Network

Country Destination Domain Proto
US 8.8.8.8:53 gc-partners.in udp
NL 88.221.144.192:80 tcp
FR 2.18.109.224:443 tcp
US 104.18.25.243:80 tcp
NL 13.69.109.131:443 tcp
US 204.79.197.203:80 tcp
NL 8.248.3.254:80 tcp
NL 8.248.3.254:80 tcp
US 8.251.167.126:80 tcp
US 8.8.8.8:53 226.101.242.52.in-addr.arpa udp

Files

memory/4332-130-0x0000000000748000-0x0000000000770000-memory.dmp

memory/4332-131-0x0000000002110000-0x0000000002156000-memory.dmp

memory/4332-132-0x0000000000400000-0x00000000004F6000-memory.dmp

memory/4456-133-0x0000000000000000-mapping.dmp

memory/3492-134-0x0000000000000000-mapping.dmp