xworm | 375795659f423fc5a060f162055743aeb8137f7f42a46b1ca40015b65e97b299

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 10:29

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General

Target
Проверка.exe
Size 83KB
Sample240606-mjmcesdh64
SHA256 375795659f423fc5a060f162055743aeb8137f7f42a46b1ca40015b65e97b299
MD5 c0a97a9a6fd36dc0f2af1165e65c7957
SHA1 e7aabd2db41d4f248a3af823c170e6e61a8abaf3
SHA512 daf705e239745cd33dee180bd1ee41751a00fb9cac2ca73554236fab9123dd120f4f291b0939288d3aeecccfe1bfade5645349f066562cab052b9aed5f69c211
SSDEEP 1536:Cb76esYWRrWhVfLCE2XravPxH41pQbBIeyHM6v6p0yfOX7ddXK+w:CX69sZG8hfbB/mD7IOrd7w
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

word-belize.gl.at.ply.gg:1678

Attributes

Install_directory
%LocalAppData%

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2252-0-0x0000000000060000-0x000000000007C000-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
4392	powershell.exe
1240	powershell.exe
4308	powershell.exe
2156	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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	Проверка.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft.lnk	Проверка.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft.lnk	Проверка.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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Users\\Admin\\AppData\\Local\\Microsoft"	Проверка.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
26	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
4352	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4392	powershell.exe
4392	powershell.exe
1240	powershell.exe
1240	powershell.exe
4308	powershell.exe
4308	powershell.exe
2156	powershell.exe
2156	powershell.exe
2252	Проверка.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	Проверка.exe
Token: SeDebugPrivilege	4392	powershell.exe
Token: SeDebugPrivilege	1240	powershell.exe
Token: SeDebugPrivilege	4308	powershell.exe
Token: SeDebugPrivilege	2156	powershell.exe
Token: SeDebugPrivilege	2252	Проверка.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2252	Проверка.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 4392	2252	Проверка.exe	91
PID 2252 wrote to memory of 4392	2252	Проверка.exe	91
PID 2252 wrote to memory of 1240	2252	Проверка.exe	93
PID 2252 wrote to memory of 1240	2252	Проверка.exe	93
PID 2252 wrote to memory of 4308	2252	Проверка.exe	96
PID 2252 wrote to memory of 4308	2252	Проверка.exe	96
PID 2252 wrote to memory of 2156	2252	Проверка.exe	98
PID 2252 wrote to memory of 2156	2252	Проверка.exe	98
PID 2252 wrote to memory of 4352	2252	Проверка.exe	100
PID 2252 wrote to memory of 4352	2252	Проверка.exe	100

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\Проверка.exe
"C:\Users\Admin\AppData\Local\Temp\Проверка.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:2252
- 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\Проверка.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4392
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Проверка.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1240
- 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\Microsoft'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4308
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Microsoft'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Microsoft" /tr "C:\Users\Admin\AppData\Local\Microsoft"
  2⤵
  - Creates scheduled task(s)
  PID:4352

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

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 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
MD5 6d3e9c29fe44e90aae6ed30ccf799ca8
SHA1 c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA512 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 444084a5dd84f5aeaa084a27da160ea4501574fbb27da9d7aab3c6c5b3269eb6
MD5 17e45724e81fad9d4f4eda74fe6b349e
SHA1 0ef309ee5638e1055c0f0fe7cd693a5643a1e4a3
SHA512 c1b0dd77c2ae9c15843b3bac8de6874609ebeffa5e10e552b364340c51bde690ac563c132dbc14f93e68d3a7939ea840fa687eb1bd603d646acf88a3430b6e45
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98
MD5 eb1ad317bd25b55b2bbdce8a28a74a94
SHA1 98a3978be4d10d62e7411946474579ee5bdc5ea6
SHA512 d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0
MD5 SHA1 SHA512

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__PSScriptPolicyTest_3yafdlrq.3ce.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3yafdlrq.3ce.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/2252-0-0x0000000000060000-0x000000000007C000-memory.dmp

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memory/2252-2-0x00007FFB43780000-0x00007FFB44241000-memory.dmp

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memory/2252-1-0x00007FFB43783000-0x00007FFB43785000-memory.dmp

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memory/2252-53-0x00007FFB43783000-0x00007FFB43785000-memory.dmp

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memory/2252-54-0x00007FFB43780000-0x00007FFB44241000-memory.dmp

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memory/4392-5-0x000002D0E5F10000-0x000002D0E5F32000-memory.dmp

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memory/4392-17-0x00007FFB43780000-0x00007FFB44241000-memory.dmp

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memory/4392-4-0x00007FFB43780000-0x00007FFB44241000-memory.dmp

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memory/4392-3-0x00007FFB43780000-0x00007FFB44241000-memory.dmp

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