xworm | 0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d

Analysis

max time kernel
91s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 17:21

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General

Target
XWORMV5.4.exe
Size 14.2MB
Sample240904-vxb3lsvgnb
SHA256 0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d
MD5 741b1f2ee5826897af2ba2ec765296e4
SHA1 706534d9c6a16354974b3b6fd6d1f620524b7dd1
SHA512 a0b14ab280d906a8ad1681e335d30a457b02355cc941d12208f2ef460a9b1f700b84789749ee2080fb4351cce09e3cceeb9fea94478c3c81ae1fb184892de03a
SSDEEP 196608:q1X5v7sGYYHDZH3OrlZPtgLklkC9sSJP/rSzQHvWSpdUorPr/kvmXhJ9aCD:qHqDVgV+9kQH+SfLdrnD
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm agilenet execution rat trojan

Malware Config

Extracted

Family

xworm

Version

45.141.26.197:7000

Mutex

9nYi5R05H806aXaO

Attributes

Install_directory
%AppData%
install_file
VLC_Media.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023483-17.dat	family_xworm
behavioral2/memory/4888-25-0x00000000000B0000-0x00000000000E2000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
3624	powershell.exe
740	powershell.exe
3460	powershell.exe
1512	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	XWORMV5.4.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	VLC_Media.exe.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2540	XWorm V5.4.exe
4888	VLC_Media.exe.exe

Loads dropped DLL 1 IoCs

pid	Process
2540	XWorm V5.4.exe

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/files/0x0008000000023482-6.dat	agile_net
behavioral2/memory/2540-26-0x0000029B10430000-0x0000029B11210000-memory.dmp	agile_net

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
16	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3624	powershell.exe
3624	powershell.exe
740	powershell.exe
740	powershell.exe
3460	powershell.exe
3460	powershell.exe
1512	powershell.exe
1512	powershell.exe
4888	VLC_Media.exe.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	VLC_Media.exe.exe
Token: SeDebugPrivilege	2540	XWorm V5.4.exe
Token: SeDebugPrivilege	3624	powershell.exe
Token: SeDebugPrivilege	740	powershell.exe
Token: SeDebugPrivilege	3460	powershell.exe
Token: SeDebugPrivilege	1512	powershell.exe
Token: SeDebugPrivilege	4888	VLC_Media.exe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4888	VLC_Media.exe.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 2540	3480	XWORMV5.4.exe	86
PID 3480 wrote to memory of 2540	3480	XWORMV5.4.exe	86
PID 3480 wrote to memory of 4888	3480	XWORMV5.4.exe	87
PID 3480 wrote to memory of 4888	3480	XWORMV5.4.exe	87
PID 4888 wrote to memory of 3624	4888	VLC_Media.exe.exe	91
PID 4888 wrote to memory of 3624	4888	VLC_Media.exe.exe	91
PID 4888 wrote to memory of 740	4888	VLC_Media.exe.exe	94
PID 4888 wrote to memory of 740	4888	VLC_Media.exe.exe	94
PID 4888 wrote to memory of 3460	4888	VLC_Media.exe.exe	98
PID 4888 wrote to memory of 3460	4888	VLC_Media.exe.exe	98
PID 4888 wrote to memory of 1512	4888	VLC_Media.exe.exe	100
PID 4888 wrote to memory of 1512	4888	VLC_Media.exe.exe	100

C:\Users\Admin\AppData\Local\Temp\XWORMV5.4.exe
"C:\Users\Admin\AppData\Local\Temp\XWORMV5.4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Users\Admin\AppData\Local\Temp\XWorm V5.4.exe
  "C:\Users\Admin\AppData\Local\Temp\XWorm V5.4.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:2540
- C:\Users\Admin\AppData\Local\Temp\VLC_Media.exe.exe
  "C:\Users\Admin\AppData\Local\Temp\VLC_Media.exe.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4888
- - 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\VLC_Media.exe.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3624
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Media.exe.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:740
- - 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\VLC_Media.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3460
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Media.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
MD5 d28a889fd956d5cb3accfbaf1143eb6f
SHA1 157ba54b365341f8ff06707d996b3635da8446f7
SHA512 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 ebbf20b0c098d467090c4115109b5f707b559a8006e9c17f00235a5d23d60399
MD5 dcac476fa19b9b7e00d97d937daf7e9f
SHA1 2753854fb9097e0c50667c4df11e336bada512e2
SHA512 81d587000267413d0b829d783aa2ea4d6f7dfdf991d0463cd49bae3090f36db0b16a63b1ca28ae9a8e52fe2a516bffbad3ff624d5b55e8956d728bb44ed5ea4f
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 ce32fe7b6fec708c52b5293b3ea0de2f0030be59644c9a635882bb7273b664a6
MD5 481e5a63ab627f474e7406859a742abc
SHA1 adf952634978d42e343896ac546763cc6e7635fa
SHA512 8d3d8329276e6fac80fbc4d6cf4ca0d05cd336c7a0e85cafe2fd121e783af1c013347909454aab63bd0c51b6f37317958f23608b980d4a5764d23cdc9aa12f95
MD5 SHA1 SHA512

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VLC_Media.exe.exe

Path C:\Users\Admin\AppData\Local\Temp\VLC_Media.exe.exe
Size 176KB
SHA256 44661d9d0df9aa2e03844719c9e6963a738e431c565f0983d309a0e113508d17
MD5 a9376f54dd83bf547f6188f8904ae3af
SHA1 85bb802b0ade5b2136c83e6217a2aaace3735edc
SHA512 71a4e6251e201441ccc1ae9633790b977a898e6f42b0d25f4c54d66d99311dad5b63e25f7ac703e932db5a526290f95e9abfe2158b72cd21e8564ac1942a48a9
SSDEEP 3072:Lf05a/CTJ99Fc9U3OMuA2ewhLapuvpAsZOyMqmyBeYVYk:CJ9Dc95/GWGwqqm1
MD5 SHA1 SHA512 SSDEEP

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XWorm V5.4.exe

Path C:\Users\Admin\AppData\Local\Temp\XWorm V5.4.exe
Size 13.8MB
SHA256 4786ac3ceb9ecdcb98bdd19a0e93750e6c9c0df460751994840f8ea9733cc491
MD5 efb0528d6978337e964d999dacb621df
SHA1 244979b8495d3d173a4359d62ad771f99a0033fc
SHA512 4b16aca5638094741a9e5f0e4581b5c3cdbd77835035362468d2a0e077fba0f96b8dd98c4a4ea853b3b623d5b525fe64091daa1b761597b660840a371fbae0df
SSDEEP 196608:msZttF81Wco24/vt8Kf67RQCTbJev4Z4t2WL8PSlsZA6G:mEtM1VR4cRZ0QZaL8qlsZVG
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_1zluff0a.45i.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1zluff0a.45i.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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ogpXG.dll

Path C:\Users\Admin\AppData\Local\Temp\ogpXG\ogpXG.dll
Size 112KB
SHA256 47578a37901c82f66e4dba47acd5c3cab6d09c9911d16f5ad0413275342147ed
MD5 2f1a50031dcf5c87d92e8b2491fdcea6
SHA1 71e2aaa2d1bb7dbe32a00e1d01d744830ecce08f
SHA512 1c66dbe1320c1a84023bdf77686a2a7ab79a3e86ba5a4ea2cda9a37f8a916137d5cfec30b28ceae181355f6f279270465ef63ae90b7e8dcd4c1a8198a7fd36a8
SSDEEP 3072:LrNI5AiELn1Sf6T2JFRwkzDyc69rJMWI/S:LBIcA3JFR2rkK
MD5 SHA1 SHA512 SSDEEP

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memory/2540-26-0x0000029B10430000-0x0000029B11210000-memory.dmp

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memory/2540-35-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/2540-37-0x0000029B2C5E0000-0x0000029B2D1CE000-memory.dmp

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memory/2540-27-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/2540-61-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/3480-0-0x00007FF973F33000-0x00007FF973F35000-memory.dmp

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memory/3480-1-0x0000000000290000-0x00000000010C0000-memory.dmp

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memory/3624-47-0x0000022CF2A90000-0x0000022CF2AB2000-memory.dmp

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memory/4888-36-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/4888-28-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/4888-25-0x00000000000B0000-0x00000000000E2000-memory.dmp

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memory/4888-89-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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memory/4888-90-0x00007FF973F30000-0x00007FF9749F1000-memory.dmp

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