Malware Analysis Report

2024-11-16 13:38

Sample ID 240530-ndqckagc56
Target 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f
SHA256 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f
Tags
xworm persistence 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

3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f

Threat Level: Known bad

The file 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f was found to be: Known bad.

Malicious Activity Summary

xworm persistence rat trojan

Xworm

Detect Xworm Payload

Xworm family

Drops startup file

Executes dropped EXE

Checks computer location settings

Looks up external IP address via web service

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: AddClipboardFormatListener

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 11:17

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

2024-05-30 11:17

Reported

2024-05-30 11:19

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.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

Xworm

trojan rat xworm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.lnk C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.lnk C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f = "C:\\Users\\Admin\\AppData\\Local\\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe" C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2664 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe C:\Windows\System32\schtasks.exe
PID 2664 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe C:\Windows\System32\schtasks.exe
PID 2664 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe C:\Windows\System32\schtasks.exe
PID 1880 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe
PID 1880 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe
PID 1880 wrote to memory of 1636 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe
PID 1880 wrote to memory of 2512 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe
PID 1880 wrote to memory of 2512 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe
PID 1880 wrote to memory of 2512 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

"C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f" /tr "C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {8A98A63F-2C7A-4ADD-83BF-DA2F317A66A7} S-1-5-21-1298544033-3225604241-2703760938-1000:IZKCKOTP\Admin:Interactive:[1]

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 scamov-48667.portmap.host udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp

Files

memory/2664-0-0x000007FEF6003000-0x000007FEF6004000-memory.dmp

memory/2664-1-0x0000000000D30000-0x0000000000D46000-memory.dmp

memory/2664-2-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

MD5 3f171ed4261c46329a1bcc62ebb19519
SHA1 06768df330b8012ee3d0cb22723408636ba7c17a
SHA256 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f
SHA512 81e90ab476967a8ca6b88f8060fe72b56450dae6300adfbcef346dfb4c523e054da05d192209ff53771a8b49ad6a6922151d905a5a6bbc8decfe551ab757a06d

memory/2664-11-0x000007FEF6003000-0x000007FEF6004000-memory.dmp

memory/2664-12-0x000007FEF6000000-0x000007FEF69EC000-memory.dmp

memory/1636-16-0x0000000000B60000-0x0000000000B76000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 11:17

Reported

2024-05-30 11:19

Platform

win10v2004-20240508-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.lnk C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.lnk C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f = "C:\\Users\\Admin\\AppData\\Local\\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe" C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

"C:\Users\Admin\AppData\Local\Temp\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f" /tr "C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3900,i,15721081447618313297,6839074028983272033,262144 --variations-seed-version --mojo-platform-channel-handle=4332 /prefetch:8

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 18.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.121:443 www.bing.com tcp
US 8.8.8.8:53 121.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 scamov-48667.portmap.host udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 99.193.161.193.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp
DE 193.161.193.99:48667 scamov-48667.portmap.host tcp

Files

memory/4488-0-0x00007FFDD4233000-0x00007FFDD4235000-memory.dmp

memory/4488-1-0x0000000000A70000-0x0000000000A86000-memory.dmp

memory/4488-2-0x00007FFDD4230000-0x00007FFDD4CF1000-memory.dmp

C:\Users\Admin\AppData\Local\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe

MD5 3f171ed4261c46329a1bcc62ebb19519
SHA1 06768df330b8012ee3d0cb22723408636ba7c17a
SHA256 3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f
SHA512 81e90ab476967a8ca6b88f8060fe72b56450dae6300adfbcef346dfb4c523e054da05d192209ff53771a8b49ad6a6922151d905a5a6bbc8decfe551ab757a06d

memory/4488-11-0x00007FFDD4233000-0x00007FFDD4235000-memory.dmp

memory/4488-12-0x00007FFDD4230000-0x00007FFDD4CF1000-memory.dmp

memory/4540-15-0x00007FFDD4230000-0x00007FFDD4CF1000-memory.dmp

memory/4540-17-0x00007FFDD4230000-0x00007FFDD4CF1000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\3c096dc60917ae1e47a754fd578882f1286ee9114ff5c6558b4f84f0be69076f.exe.log

MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1