xworm | f326b722d4dd6d61359b374019a3cc74f2fbd4b3b1511c2d647b08fdc7f33135

Analysis

max time kernel
1613s
max time network
1790s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
04/06/2024, 14:02

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General

Target
Process hacker.exe
Size 39KB
Sample240604-rb7evahg51
SHA256 f326b722d4dd6d61359b374019a3cc74f2fbd4b3b1511c2d647b08fdc7f33135
MD5 380f1aa5a0b081df600dd3963cea32b2
SHA1 10cc40c32bf6fef6f58f5980b9a4413115c0e608
SHA512 1dff1708633b0187edf11e951a733ac3c8928ca2e9a109483ef5fca3118a86d68e91aefde51657df6ef2c8b862dbf5f05923e8742056deee6ff684284ef9047d
SSDEEP 768:7V9G+zrPxNlxd80VuTU35uXuyjWxF5Pm9j/Tl67OMhZ3IC:7VvrPfqwP8u8aFM9zTl67OMvx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

model-dt.gl.at.ply.gg:61584

Mutex

Qnv4UI0eUKWzJk4u

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/4408-1-0x0000000000E90000-0x0000000000EA0000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4696	powershell.exe
2212	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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	Process hacker.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
13	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 5 IoCs

pid	Process
4696	powershell.exe
4696	powershell.exe
2212	powershell.exe
2212	powershell.exe
4408	Process hacker.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4408	Process hacker.exe
Token: SeDebugPrivilege	4696	powershell.exe
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	4408	Process hacker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4408	Process hacker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 4696	4408	Process hacker.exe	86
PID 4408 wrote to memory of 4696	4408	Process hacker.exe	86
PID 4408 wrote to memory of 2212	4408	Process hacker.exe	88
PID 4408 wrote to memory of 2212	4408	Process hacker.exe	88

C:\Users\Admin\AppData\Local\Temp\Process hacker.exe
"C:\Users\Admin\AppData\Local\Temp\Process hacker.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4408
- 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\Process hacker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Process hacker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2212

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 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
MD5 SHA1 SHA512

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__PSScriptPolicyTest_hhiox2um.yt1.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hhiox2um.yt1.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/4408-1-0x0000000000E90000-0x0000000000EA0000-memory.dmp

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memory/4408-2-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4408-0-0x00007FF883833000-0x00007FF883835000-memory.dmp

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memory/4408-32-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4408-31-0x00007FF883833000-0x00007FF883835000-memory.dmp

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memory/4696-3-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4696-18-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4696-15-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4696-14-0x00007FF883830000-0x00007FF8842F1000-memory.dmp

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memory/4696-9-0x00000239F0090000-0x00000239F00B2000-memory.dmp

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