xworm | 2eaf388348495a898c9602f325713aa1db1923a2bbde6433a862b7c1540c6d21

Analysis

max time kernel
148s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
05/06/2024, 19:11

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General

Target
susu2.exe
Size 87KB
Sample240605-xv59safa71
SHA256 2eaf388348495a898c9602f325713aa1db1923a2bbde6433a862b7c1540c6d21
MD5 b28409052ddd33f1c68388bfa5ded860
SHA1 506b4b9e2b10e3c41b988a41461cdafd202fc90a
SHA512 411c994c7e5196ef218340ed85c6790a66347f09c2e6e5636ec6324704ea1dc4d98d523ea5656d40b487b6f7b4425d8aa41f5d50c7bfc839bd3ac02a99d61a1a
SSDEEP 1536:G1pqX+l9HzPo4MSBX8FCu/x+bA+D/M05hXk26PZKF6OboefnZPSoUQ:5X+nDrMStwJ+bxR5hXGC6O0efnZFz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

4.tcp.eu.ngrok.io:8848

Attributes

Install_directory
%AppData%
install_file
detektivhuedblyat.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/448-1-0x0000000000B30000-0x0000000000B4C000-memory.dmp	family_xworm
behavioral2/files/0x000f00000002336c-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
1716	powershell.exe
4116	powershell.exe
4308	powershell.exe
852	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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	susu2.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\detektivhuedblyat.lnk	susu2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\detektivhuedblyat.lnk	susu2.exe

Executes dropped EXE 3 IoCs

pid	Process
736	detektivhuedblyat.exe
1540	detektivhuedblyat.exe
2960	detektivhuedblyat.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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\detektivhuedblyat = "C:\\Users\\Admin\\AppData\\Roaming\\detektivhuedblyat.exe"	susu2.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
29	4.tcp.eu.ngrok.io
58	4.tcp.eu.ngrok.io
70	4.tcp.eu.ngrok.io

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
4384	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1716	powershell.exe
1716	powershell.exe
4116	powershell.exe
4116	powershell.exe
4308	powershell.exe
4308	powershell.exe
852	powershell.exe
852	powershell.exe
448	susu2.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	448	susu2.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	4116	powershell.exe
Token: SeDebugPrivilege	4308	powershell.exe
Token: SeDebugPrivilege	852	powershell.exe
Token: SeDebugPrivilege	448	susu2.exe
Token: SeDebugPrivilege	736	detektivhuedblyat.exe
Token: SeDebugPrivilege	1540	detektivhuedblyat.exe
Token: SeDebugPrivilege	2960	detektivhuedblyat.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
448	susu2.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 448 wrote to memory of 1716	448	susu2.exe	89
PID 448 wrote to memory of 1716	448	susu2.exe	89
PID 448 wrote to memory of 4116	448	susu2.exe	93
PID 448 wrote to memory of 4116	448	susu2.exe	93
PID 448 wrote to memory of 4308	448	susu2.exe	95
PID 448 wrote to memory of 4308	448	susu2.exe	95
PID 448 wrote to memory of 852	448	susu2.exe	97
PID 448 wrote to memory of 852	448	susu2.exe	97
PID 448 wrote to memory of 4384	448	susu2.exe	100
PID 448 wrote to memory of 4384	448	susu2.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\susu2.exe
"C:\Users\Admin\AppData\Local\Temp\susu2.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:448
- 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\susu2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1716
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'susu2.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4116
- 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\detektivhuedblyat.exe'
  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 'detektivhuedblyat.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:852
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "detektivhuedblyat" /tr "C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe"
  2⤵
  - Creates scheduled task(s)
  PID:4384

C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:736

C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1540

C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2960

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

Web Service

T1102

Exfiltration

Impact

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Downloads

detektivhuedblyat.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\detektivhuedblyat.exe.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 5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
MD5 6d42b6da621e8df5674e26b799c8e2aa
SHA1 ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA512 53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 976f9534aa2976c85c2455bdde786a3f55d63aefdd40942eba1223c4c93590db
MD5 b51dc9e5ec3c97f72b4ca9488bbb4462
SHA1 5c1e8c0b728cd124edcacefb399bbd5e25b21bd3
SHA512 0e5aa6cf64c535aefb833e5757b68e1094c87424abe2615a7d7d26b1b31eff358d12e36e75ca57fd690a9919b776600bf4c5c0e5a5df55366ba62238bdf3f280
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 0c557845aab1da497bbff0e8fbe65cabf4cb2804b97ba8ae8c695a528af70870
MD5 83685d101174171875b4a603a6c2a35c
SHA1 37be24f7c4525e17fa18dbd004186be3a9209017
SHA512 005a97a8e07b1840abdcef86a7881fd9bdc8acbfdf3eafe1dceb6374060626d81d789e57d87ca4096a39e28d5cca00f8945edff0a747591691ae75873d2b3fb5
MD5 SHA1 SHA512

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__PSScriptPolicyTest_qnj24j4h.mxy.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qnj24j4h.mxy.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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detektivhuedblyat.exe

Path C:\Users\Admin\AppData\Roaming\detektivhuedblyat.exe
Size 87KB
SHA256 2eaf388348495a898c9602f325713aa1db1923a2bbde6433a862b7c1540c6d21
MD5 b28409052ddd33f1c68388bfa5ded860
SHA1 506b4b9e2b10e3c41b988a41461cdafd202fc90a
SHA512 411c994c7e5196ef218340ed85c6790a66347f09c2e6e5636ec6324704ea1dc4d98d523ea5656d40b487b6f7b4425d8aa41f5d50c7bfc839bd3ac02a99d61a1a
SSDEEP 1536:G1pqX+l9HzPo4MSBX8FCu/x+bA+D/M05hXk26PZKF6OboefnZPSoUQ:5X+nDrMStwJ+bxR5hXGC6O0efnZFz
MD5 SHA1 SHA512 SSDEEP

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memory/448-56-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/448-0-0x00007FFB9F983000-0x00007FFB9F985000-memory.dmp

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memory/448-57-0x00007FFB9F983000-0x00007FFB9F985000-memory.dmp

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memory/448-61-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/448-1-0x0000000000B30000-0x0000000000B4C000-memory.dmp

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memory/1716-17-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/1716-14-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/1716-13-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/1716-12-0x00007FFB9F980000-0x00007FFBA0441000-memory.dmp

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memory/1716-8-0x00000231FAB40000-0x00000231FAB62000-memory.dmp

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