Malware Analysis Report

2024-12-08 01:26

Sample ID 240723-jyg5gawfqr
Target 66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118
SHA256 95d83b9e181f80d6e7de252e3d3ace37c8c7f7d4bd36b8ae1198ae87c96a368e
Tags
smokeloader ku11 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

95d83b9e181f80d6e7de252e3d3ace37c8c7f7d4bd36b8ae1198ae87c96a368e

Threat Level: Known bad

The file 66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

smokeloader ku11 backdoor trojan

SmokeLoader

Loads dropped DLL

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-23 08:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-23 08:04

Reported

2024-07-23 08:43

Platform

win7-20240704-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 164

Network

N/A

Files

memory/2092-1-0x0000000000130000-0x0000000000131000-memory.dmp

memory/2092-2-0x0000000000180000-0x000000000018A000-memory.dmp

memory/2092-3-0x0000000000290000-0x000000000029A000-memory.dmp

\Users\Admin\AppData\Local\Temp\5C1B.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2092-6-0x0000000000290000-0x000000000029A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-23 08:04

Reported

2024-07-23 08:44

Platform

win10v2004-20240709-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66c40b0aa8b0aef71033c579bd0a1292_JaffaCakes118.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2596 -ip 2596

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2596 -s 508

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 40.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/2596-2-0x0000000000A70000-0x0000000000A7A000-memory.dmp

memory/2596-1-0x0000000000A60000-0x0000000000A6A000-memory.dmp

memory/2596-0-0x0000000000A10000-0x0000000000A11000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\5C1B.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

memory/2596-7-0x0000000000A70000-0x0000000000A7A000-memory.dmp