xworm | 0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d

Analysis

max time kernel
30s
max time network
141s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
04/09/2024, 05:57

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General

Target
0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe
Size 14.2MB
Sample240904-gnxq3axalg
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/0x000300000002a578-17.dat	family_xworm
behavioral2/memory/4656-25-0x0000000000B40000-0x0000000000B72000-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
2788	powershell.exe
4624	powershell.exe
4996	powershell.exe
3380	powershell.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
4464	XWorm V5.4.exe
4656	VLC_Media.exe.exe

Loads dropped DLL 1 IoCs

pid	Process
4464	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/0x000c000000028cd0-6.dat	agile_net
behavioral2/memory/4464-27-0x0000021942E70000-0x0000021943C50000-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
1	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
2788	powershell.exe
2788	powershell.exe
4624	powershell.exe
4624	powershell.exe
4996	powershell.exe
4996	powershell.exe
3380	powershell.exe
3380	powershell.exe
4656	VLC_Media.exe.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4656	VLC_Media.exe.exe
Token: SeDebugPrivilege	4464	XWorm V5.4.exe
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	4624	powershell.exe
Token: SeDebugPrivilege	4996	powershell.exe
Token: SeDebugPrivilege	3380	powershell.exe
Token: SeDebugPrivilege	4656	VLC_Media.exe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4656	VLC_Media.exe.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 4464	3248	0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe	81
PID 3248 wrote to memory of 4464	3248	0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe	81
PID 3248 wrote to memory of 4656	3248	0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe	82
PID 3248 wrote to memory of 4656	3248	0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe	82
PID 4656 wrote to memory of 2788	4656	VLC_Media.exe.exe	87
PID 4656 wrote to memory of 2788	4656	VLC_Media.exe.exe	87
PID 4656 wrote to memory of 4624	4656	VLC_Media.exe.exe	89
PID 4656 wrote to memory of 4624	4656	VLC_Media.exe.exe	89
PID 4656 wrote to memory of 4996	4656	VLC_Media.exe.exe	91
PID 4656 wrote to memory of 4996	4656	VLC_Media.exe.exe	91
PID 4656 wrote to memory of 3380	4656	VLC_Media.exe.exe	93
PID 4656 wrote to memory of 3380	4656	VLC_Media.exe.exe	93

C:\Users\Admin\AppData\Local\Temp\0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe
"C:\Users\Admin\AppData\Local\Temp\0b142a5773fcd9ae5cbb967f748e8da9a89e74aa50a0e1cd52f3aaa313bc749d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3248
- 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:4464
- C:\Users\Admin\AppData\Local\Temp\VLC_Media.exe.exe
  "C:\Users\Admin\AppData\Local\Temp\VLC_Media.exe.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4656
- - 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:2788
- - 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:4624
- - 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:4996
- - 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:3380

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 21942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31
MD5 d0a4a3b9a52b8fe3b019f6cd0ef3dad6
SHA1 fed70ce7834c3b97edbd078eccda1e5effa527cd
SHA512 1a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 ee20a5b38a6674366efda276dbbf0b43eb54efd282acfc1033042f6b53a80d4d
MD5 80b42fe4c6cf64624e6c31e5d7f2d3b3
SHA1 1f93e7dd83b86cb900810b7e3e43797868bf7d93
SHA512 83c1c744c15a8b427a1d3af677ec3bfd0353875a60fe886c41570981e17467ebbb59619b960ca8c5c3ab1430946b0633ea200b7e7d84ab6dca88b60c50055573
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 2f794e76611f45c4777264da515167929949bc7fbdbe1a5181ae13fa9ad58296
MD5 a6d433375d7021a44c11e271e5f4ce8a
SHA1 10380ef4f800be9be4d39a280896825ba3fa5153
SHA512 3cffa0bf0ce06320008b379684b0ebcfc5ab658a0222f72b5afd0dfb8d510e24b6295f48a500e8bca7e64d03e98331b226599320a58ce3019e9c437a6fbc621e
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_41ti2xil.xhw.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_41ti2xil.xhw.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/2788-38-0x0000015C69930000-0x0000015C69952000-memory.dmp

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memory/3248-0-0x00007FFEC42D3000-0x00007FFEC42D5000-memory.dmp

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memory/3248-1-0x00000000002F0000-0x0000000001120000-memory.dmp

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memory/4464-35-0x000002195F350000-0x000002195FF3E000-memory.dmp

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memory/4464-36-0x00007FFEC42D0000-0x00007FFEC4D92000-memory.dmp

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memory/4464-27-0x0000021942E70000-0x0000021943C50000-memory.dmp

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memory/4464-26-0x00007FFEC42D0000-0x00007FFEC4D92000-memory.dmp

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memory/4656-28-0x00007FFEC42D0000-0x00007FFEC4D92000-memory.dmp

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memory/4656-25-0x0000000000B40000-0x0000000000B72000-memory.dmp

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memory/4656-83-0x00007FFEC42D0000-0x00007FFEC4D92000-memory.dmp

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