Malware Analysis Report

2024-11-16 13:32

Sample ID 240620-wz9x4avgmk
Target zzzzz.exe
SHA256 0d09129f4495e20b9eb626738599b9c3305d63378ea42574b105e5f4ef79b258
Tags
xworm rat 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

0d09129f4495e20b9eb626738599b9c3305d63378ea42574b105e5f4ef79b258

Threat Level: Known bad

The file zzzzz.exe was found to be: Known bad.

Malicious Activity Summary

xworm rat trojan

Xworm family

Xworm

Detect Xworm Payload

Executes dropped EXE

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Uses Task Scheduler COM API

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 18:22

Signatures

Detect Xworm Payload

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

Xworm family

xworm

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 18:22

Reported

2024-06-20 18:25

Platform

win7-20240611-en

Max time kernel

129s

Max time network

143s

Command Line

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

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\zzzzz.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A

Uses Task Scheduler COM API

persistence

Processes

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

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

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "zzzzz" /tr "C:\Users\Admin\AppData\Roaming\zzzzz.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {B6821CF4-AA79-48FE-83EA-38AFCA6114E8} S-1-5-21-39690363-730359138-1046745555-1000:EILATWEW\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 meet-showtimes.gl.at.ply.gg udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp

Files

memory/2248-0-0x000007FEF6133000-0x000007FEF6134000-memory.dmp

memory/2248-1-0x00000000002D0000-0x00000000002DE000-memory.dmp

memory/2248-3-0x000007FEF6130000-0x000007FEF6B1C000-memory.dmp

memory/2248-4-0x000007FEF6133000-0x000007FEF6134000-memory.dmp

memory/2248-5-0x000007FEF6130000-0x000007FEF6B1C000-memory.dmp

C:\Users\Admin\AppData\Roaming\zzzzz.exe

MD5 3868b761a570c377d7f3c067b971c808
SHA1 9e77af08c7a56e3a9aca2a46b833669a813000d3
SHA256 0d09129f4495e20b9eb626738599b9c3305d63378ea42574b105e5f4ef79b258
SHA512 8d14fbddf0921f598040f6702dafbbbd2ecef17f167e15e31d549a56de290caee0cdc67d5c38d70ea4d4a047fd47e94efc50095c77cd712fbd981b34bfdc4d94

memory/460-9-0x0000000000340000-0x000000000034E000-memory.dmp

memory/1952-11-0x0000000000040000-0x000000000004E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 18:22

Reported

2024-06-20 18:25

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

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

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\zzzzz.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A

Enumerates physical storage devices

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\zzzzz.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\zzzzz.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1848 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\zzzzz.exe C:\Windows\System32\schtasks.exe
PID 1848 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\zzzzz.exe C:\Windows\System32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

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

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

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "zzzzz" /tr "C:\Users\Admin\AppData\Roaming\zzzzz.exe"

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

C:\Users\Admin\AppData\Roaming\zzzzz.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 meet-showtimes.gl.at.ply.gg udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 8.8.8.8:53 131.83.221.88.in-addr.arpa udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 147.185.221.20:33561 meet-showtimes.gl.at.ply.gg tcp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/1848-0-0x0000000000660000-0x000000000066E000-memory.dmp

memory/1848-1-0x00007FFC9CC13000-0x00007FFC9CC15000-memory.dmp

memory/1848-3-0x00007FFC9CC10000-0x00007FFC9D6D1000-memory.dmp

C:\Users\Admin\AppData\Roaming\zzzzz.exe

MD5 3868b761a570c377d7f3c067b971c808
SHA1 9e77af08c7a56e3a9aca2a46b833669a813000d3
SHA256 0d09129f4495e20b9eb626738599b9c3305d63378ea42574b105e5f4ef79b258
SHA512 8d14fbddf0921f598040f6702dafbbbd2ecef17f167e15e31d549a56de290caee0cdc67d5c38d70ea4d4a047fd47e94efc50095c77cd712fbd981b34bfdc4d94

memory/1276-6-0x00007FFC9CC10000-0x00007FFC9D6D1000-memory.dmp

memory/1276-8-0x00007FFC9CC10000-0x00007FFC9D6D1000-memory.dmp

memory/1848-9-0x00007FFC9CC10000-0x00007FFC9D6D1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\zzzzz.exe.log

MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1