xworm | 054f80d76dacb9d1165f12a3052990cfcad73ec63ba4fb5305ced170e43e56f4

General

Target

CrossHairX.exe
Size

39KB
MD5

080026dbcae03f2bfea9bee4ac687fe7
SHA1

3f16542806354dad25c5bae3fd9e2bc7d7e3d36b
SHA256

054f80d76dacb9d1165f12a3052990cfcad73ec63ba4fb5305ced170e43e56f4
SHA512

2fefcfc6191b74f28393db4da5a797a362688ff07d0bfce31bc4a0b24ff83d99fe84520bdf3300529241a68c765d9026816bbc93e69bcde479c0a6a5b1738ffd
SSDEEP

768:2jwkGJWkrdf8bpJ6eaWaNmUTHnFPp9nCw6pO9huu5G:2jrGJWHKeAQ+HFx9nCw6pO94p

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

hosting-doe.gl.at.ply.gg:20006

Mutex

4ZfxXQlNchTSkPtE

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4960-1-0x0000000000440000-0x0000000000450000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
864	powershell.exe
2972	powershell.exe
2520	powershell.exe
2512	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	CrossHairX.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	CrossHairX.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	CrossHairX.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost"	CrossHairX.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2520	powershell.exe
2520	powershell.exe
2512	powershell.exe
2512	powershell.exe
864	powershell.exe
864	powershell.exe
2972	powershell.exe
2972	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	CrossHairX.exe
Token: SeDebugPrivilege	2520	powershell.exe
Token: SeDebugPrivilege	2512	powershell.exe
Token: SeDebugPrivilege	864	powershell.exe
Token: SeDebugPrivilege	2972	powershell.exe
Token: SeDebugPrivilege	4960	CrossHairX.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 2520	4960	CrossHairX.exe	93
PID 4960 wrote to memory of 2520	4960	CrossHairX.exe	93
PID 4960 wrote to memory of 2512	4960	CrossHairX.exe	96
PID 4960 wrote to memory of 2512	4960	CrossHairX.exe	96
PID 4960 wrote to memory of 864	4960	CrossHairX.exe	98
PID 4960 wrote to memory of 864	4960	CrossHairX.exe	98
PID 4960 wrote to memory of 2972	4960	CrossHairX.exe	102
PID 4960 wrote to memory of 2972	4960	CrossHairX.exe	102

C:\Users\Admin\AppData\Local\Temp\CrossHairX.exe
"C:\Users\Admin\AppData\Local\Temp\CrossHairX.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\CrossHairX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2520
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'CrossHairX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2512
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
ce4540390cc4841c8973eb5a3e9f4f7d

SHA1
2293f30a6f4c9538bc5b06606c10a50ab4ecef8e

SHA256
e834e1da338b9644d538cefd70176768816da2556939c1255d386931bd085105

SHA512
2a3e466cb5a81d2b65256053b768a98321eb3e65ff46353eefc9864f14a391748116f050e7482ddd73a51575bf0a6fc5c673023dade62dbd8b174442bae1cc6b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4ifzbim2.3rg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2520-12-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/2520-14-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/2520-17-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/2520-13-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/2520-11-0x000001CD32C40000-0x000001CD32C62000-memory.dmp

Filesize
136KB

Download
memory/4960-0-0x00007FFA3CB73000-0x00007FFA3CB75000-memory.dmp

Filesize
8KB

Download
memory/4960-1-0x0000000000440000-0x0000000000450000-memory.dmp

Filesize
64KB

Download
memory/4960-55-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/4960-56-0x00007FFA3CB73000-0x00007FFA3CB75000-memory.dmp

Filesize
8KB

Download
memory/4960-57-0x00007FFA3CB70000-0x00007FFA3D631000-memory.dmp

Filesize
10.8MB

Download
memory/4960-58-0x000000001CC80000-0x000000001CC8C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads