xworm | 7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064

Analysis

max time kernel
135s
max time network
51s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12/06/2024, 13:20

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General

Target
7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe
Size 75KB
Sample240612-qlgfqswemb
SHA256 7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064
MD5 f1422191bd47a2f8f51228b9d52f5a7f
SHA1 a4e059541cb4a719540e616f5dee71da14af8a2c
SHA512 e6ef0848f2e91ca440ca54d17fa845ef6f8e6fc1f59c259f3cbfb201aa5d6df65934b5af1e58b8ba52e52762897400654e072ce089f05e399b4ff23eeab97816
SSDEEP 1536:AT2CCyA/xC2OlmAtHL0bWSSXLF1AWuBDd7Fhi6tFdEjOnHH7ns4:4rCPglDr0bWL1A77FhZHEjOn7s4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

listing-trackbacks.gl.at.ply.gg:8848

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2248-0-0x0000000000E80000-0x0000000000E9A000-memory.dmp	family_xworm
behavioral2/files/0x0009000000022ac3-58.dat	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
1640	powershell.exe
548	powershell.exe
3108	powershell.exe
672	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe

Executes dropped EXE 2 IoCs

pid	Process
348	TLauncher
1824	TLauncher

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TLauncher = "C:\\Users\\Admin\\AppData\\Roaming\\TLauncher"	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe

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
2	ip-api.com

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1640	powershell.exe
1640	powershell.exe
548	powershell.exe
548	powershell.exe
3108	powershell.exe
3108	powershell.exe
672	powershell.exe
672	powershell.exe
2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe
Token: SeDebugPrivilege	1640	powershell.exe
Token: SeDebugPrivilege	548	powershell.exe
Token: SeDebugPrivilege	3108	powershell.exe
Token: SeDebugPrivilege	672	powershell.exe
Token: SeDebugPrivilege	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe
Token: SeDebugPrivilege	348	TLauncher
Token: SeDebugPrivilege	1824	TLauncher

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 1640	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	87
PID 2248 wrote to memory of 1640	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	87
PID 2248 wrote to memory of 548	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	89
PID 2248 wrote to memory of 548	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	89
PID 2248 wrote to memory of 3108	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	91
PID 2248 wrote to memory of 3108	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	91
PID 2248 wrote to memory of 672	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	93
PID 2248 wrote to memory of 672	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	93
PID 2248 wrote to memory of 556	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	95
PID 2248 wrote to memory of 556	2248	7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe	95

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe
"C:\Users\Admin\AppData\Local\Temp\7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2248
- 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\7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1640
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:548
- 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\TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3108
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:672
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TLauncher" /tr "C:\Users\Admin\AppData\Roaming\TLauncher"
  2⤵
  - Creates scheduled task(s)
  PID:556

C:\Users\Admin\AppData\Roaming\TLauncher
C:\Users\Admin\AppData\Roaming\TLauncher
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:348

C:\Users\Admin\AppData\Roaming\TLauncher
C:\Users\Admin\AppData\Roaming\TLauncher
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

TLauncher.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\TLauncher.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

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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 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 be6660bf617c92d142fbbf7c52622c0f6c556c5266ae90501b6a6cc89b937b94
MD5 c379e39e2111e60be4b868917d9216bf
SHA1 f723346b1eddd3e4fcfa7d789879229ef7679f10
SHA512 b1abc189a6c4504e231c8d645a64f403209e8eb63e429a046cc819f7f97d067755290677770c7df5ae2a5ae5fac2a3c08d873bd191030413f8a0171fac19495d
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 e1ee9af6b9e3bfd41b7d2c980580bb7427883f1169ed3df4be11293ce7895465
MD5 dbb22d95851b93abf2afe8fb96a8e544
SHA1 920ec5fdb323537bcf78f7e29a4fc274e657f7a4
SHA512 16031134458bf312509044a3028be46034c544163c4ca956aee74d2075fbeb5873754d2254dc1d0b573ce1a644336ac4c8bd7147aba100bfdac8c504900ef3fc
MD5 SHA1 SHA512

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__PSScriptPolicyTest_rcdpspnm.de2.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rcdpspnm.de2.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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TLauncher

Path C:\Users\Admin\AppData\Roaming\TLauncher
Size 75KB
SHA256 7a54b8267b3e050ec10d67669c94091e069e284ff6034fdf1b8073219eaf8064
MD5 f1422191bd47a2f8f51228b9d52f5a7f
SHA1 a4e059541cb4a719540e616f5dee71da14af8a2c
SHA512 e6ef0848f2e91ca440ca54d17fa845ef6f8e6fc1f59c259f3cbfb201aa5d6df65934b5af1e58b8ba52e52762897400654e072ce089f05e399b4ff23eeab97816
SSDEEP 1536:AT2CCyA/xC2OlmAtHL0bWSSXLF1AWuBDd7Fhi6tFdEjOnHH7ns4:4rCPglDr0bWL1A77FhZHEjOn7s4
MD5 SHA1 SHA512 SSDEEP

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memory/1640-5-0x000001D1FF4B0000-0x000001D1FF4D2000-memory.dmp

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memory/1640-18-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/1640-15-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/1640-14-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/1640-3-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/2248-1-0x00007FF8F5A83000-0x00007FF8F5A85000-memory.dmp

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memory/2248-56-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/2248-2-0x00007FF8F5A80000-0x00007FF8F6541000-memory.dmp

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memory/2248-0-0x0000000000E80000-0x0000000000E9A000-memory.dmp

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