Malware Analysis Report

2024-09-11 09:57

Sample ID 240602-jbmrfafe98
Target 8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118
SHA256 3637dfa2d64efeaf36903e17bacd8f832dee3e6d12e3414fd55fed4311498796
Tags
limerat execution rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

3637dfa2d64efeaf36903e17bacd8f832dee3e6d12e3414fd55fed4311498796

Threat Level: Known bad

The file 8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

limerat execution rat

LimeRAT

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Command and Scripting Interpreter: PowerShell

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-02 07:29

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 07:29

Reported

2024-06-02 07:32

Platform

win7-20240220-en

Max time kernel

144s

Max time network

148s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118.ps1

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1992 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe
PID 1992 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe
PID 1992 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe
PID 1992 wrote to memory of 2636 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118.ps1

C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe

"C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp

Files

memory/1992-4-0x000007FEF568E000-0x000007FEF568F000-memory.dmp

memory/1992-7-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

memory/1992-8-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

memory/1992-6-0x00000000022A0000-0x00000000022A8000-memory.dmp

memory/1992-5-0x000000001B760000-0x000000001BA42000-memory.dmp

memory/1992-9-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\273032370\273032370.exe

MD5 b799e179c6512cdea8fc1b60f3ea68e7
SHA1 fd011070db46a5ba428d467b7a1596c186ea7b69
SHA256 182c2b7af53fe809c7b3bd3ea738108e20984e9bc982eb183c8311c5dd49640e
SHA512 a2301141126dc823b12485337834435dfb526bf339a8712d3ec1aab58e887092dec891eb5cca49aab0b487793d57ca8b3299f7350e31f1e7eba9e67ad0db5c33

memory/1992-13-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

memory/1992-18-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

memory/2636-19-0x0000000073E11000-0x0000000073E12000-memory.dmp

memory/2636-22-0x0000000073E10000-0x00000000743BB000-memory.dmp

memory/2636-21-0x0000000073E10000-0x00000000743BB000-memory.dmp

memory/1992-20-0x000007FEF53D0000-0x000007FEF5D6D000-memory.dmp

memory/2636-23-0x0000000073E10000-0x00000000743BB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 07:29

Reported

2024-06-02 07:32

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118.ps1

Signatures

LimeRAT

rat limerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A pastebin.com N/A N/A
N/A pastebin.com N/A N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1396 wrote to memory of 5104 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe
PID 1396 wrote to memory of 5104 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe
PID 1396 wrote to memory of 5104 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe

Processes

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\8d4fc7d9b7f9ae031db6ac350af49861_JaffaCakes118.ps1

C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe

"C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 pastebin.com udp
US 104.20.4.235:443 pastebin.com tcp
CH 141.255.158.51:1177 tcp
US 8.8.8.8:53 235.4.20.104.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
CH 141.255.158.51:1177 tcp
CH 141.255.158.51:1177 tcp
US 8.8.8.8:53 udp

Files

memory/1396-0-0x00007FF8010B3000-0x00007FF8010B5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tlyqqavp.k0n.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1396-10-0x000001E85C8A0000-0x000001E85C8C2000-memory.dmp

memory/1396-11-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

memory/1396-12-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\2142339208\2142339208.exe

MD5 b799e179c6512cdea8fc1b60f3ea68e7
SHA1 fd011070db46a5ba428d467b7a1596c186ea7b69
SHA256 182c2b7af53fe809c7b3bd3ea738108e20984e9bc982eb183c8311c5dd49640e
SHA512 a2301141126dc823b12485337834435dfb526bf339a8712d3ec1aab58e887092dec891eb5cca49aab0b487793d57ca8b3299f7350e31f1e7eba9e67ad0db5c33

memory/5104-21-0x0000000074A02000-0x0000000074A03000-memory.dmp

memory/5104-22-0x0000000074A00000-0x0000000074FB1000-memory.dmp

memory/1396-23-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

memory/5104-24-0x0000000074A00000-0x0000000074FB1000-memory.dmp

memory/5104-25-0x0000000074A02000-0x0000000074A03000-memory.dmp

memory/5104-26-0x0000000074A00000-0x0000000074FB1000-memory.dmp