xworm | 6769f3dcde3cc9f6fb8fd1fb6a37b52221ef79b97d5d4002c44308da7a24b144

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 13:11

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General

Target

Nursultan Alpha/workspace/nur.exe
Size

78KB
MD5

1ac8c816761e434a1f2f57fd6b1ff2ce
SHA1

ea93e41e41697445fb0e9d87e22c39f92574a256
SHA256

a3ad9f1252629d998935892cbf29d6678f5bf12244cc1687d7bbde4bb6f9855d
SHA512

08008e9b57b3e0bff46b82098bbb85bfe78ecf9b0d0062956b31724e29376910d5ead41179864975ab233998c8cf9c6402f21bbd0928496bf1c3270ee99d7a8c
SSDEEP

1536:gBMjqMnGJcI9Nkl92+TJ34TO6X+bEwZfvG/Ke6VJXRQmLOVrCgVxcpum:g+qMEZPo4TO6X+bEnCFJXqcOVrCgun

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

22.ip.gl.ply.gg:61996

Attributes

Install_directory
%ProgramData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot6997638498:AAHa9TMLloZsFrAsEGC8rfuzrK0fiaQAI5Q/sendMessage?chat_id=1031836490

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral30/memory/1288-1-0x0000000000CF0000-0x0000000000D0A000-memory.dmp	family_xworm
behavioral30/files/0x0007000000023c9c-57.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
456	powershell.exe
4900	powershell.exe
556	powershell.exe
5060	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	nur.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
3352	svchost.exe
3964	svchost.exe
3416	svchost.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\ProgramData\\svchost.exe"	nur.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
456	powershell.exe
456	powershell.exe
4900	powershell.exe
4900	powershell.exe
556	powershell.exe
556	powershell.exe
5060	powershell.exe
5060	powershell.exe
1288	nur.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	nur.exe
Token: SeDebugPrivilege	456	powershell.exe
Token: SeDebugPrivilege	4900	powershell.exe
Token: SeDebugPrivilege	556	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	1288	nur.exe
Token: SeDebugPrivilege	3352	svchost.exe
Token: SeDebugPrivilege	3964	svchost.exe
Token: SeDebugPrivilege	3416	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1288	nur.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 456	1288	nur.exe	84
PID 1288 wrote to memory of 456	1288	nur.exe	84
PID 1288 wrote to memory of 4900	1288	nur.exe	86
PID 1288 wrote to memory of 4900	1288	nur.exe	86
PID 1288 wrote to memory of 556	1288	nur.exe	88
PID 1288 wrote to memory of 556	1288	nur.exe	88
PID 1288 wrote to memory of 5060	1288	nur.exe	90
PID 1288 wrote to memory of 5060	1288	nur.exe	90
PID 1288 wrote to memory of 1868	1288	nur.exe	92
PID 1288 wrote to memory of 1868	1288	nur.exe	92

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\Nursultan Alpha\workspace\nur.exe
"C:\Users\Admin\AppData\Local\Temp\Nursultan Alpha\workspace\nur.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:1288
- 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\Nursultan Alpha\workspace\nur.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:456
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'nur.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4900
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:556
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\ProgramData\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1868

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3352

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3964

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

C:\ProgramData\svchost.exe

Filesize
78KB

MD5
1ac8c816761e434a1f2f57fd6b1ff2ce

SHA1
ea93e41e41697445fb0e9d87e22c39f92574a256

SHA256
a3ad9f1252629d998935892cbf29d6678f5bf12244cc1687d7bbde4bb6f9855d

SHA512
08008e9b57b3e0bff46b82098bbb85bfe78ecf9b0d0062956b31724e29376910d5ead41179864975ab233998c8cf9c6402f21bbd0928496bf1c3270ee99d7a8c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
5cfe303e798d1cc6c1dab341e7265c15

SHA1
cd2834e05191a24e28a100f3f8114d5a7708dc7c

SHA256
c4d16552769ca1762f6867bce85589c645ac3dc490b650083d74f853f898cfab

SHA512
ef151bbe0033a2caf2d40aff74855a3f42c8171e05a11c8ce93c7039d9430482c43fe93d9164ee94839aff253cad774dbf619dde9a8af38773ca66d59ac3400e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mnqmbefn.4ik.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/456-12-0x00007FFBAD560000-0x00007FFBAE021000-memory.dmp

Filesize
10.8MB

Download
memory/456-16-0x00007FFBAD560000-0x00007FFBAE021000-memory.dmp

Filesize
10.8MB

Download
memory/456-13-0x00007FFBAD560000-0x00007FFBAE021000-memory.dmp

Filesize
10.8MB

Download
memory/456-2-0x000001F99CDF0000-0x000001F99CE12000-memory.dmp

Filesize
136KB

Download
memory/1288-0-0x00007FFBAD563000-0x00007FFBAD565000-memory.dmp

Filesize
8KB

Download
memory/1288-55-0x00007FFBAD560000-0x00007FFBAE021000-memory.dmp

Filesize
10.8MB

Download
memory/1288-56-0x00007FFBAD563000-0x00007FFBAD565000-memory.dmp

Filesize
8KB

Download
memory/1288-60-0x00007FFBAD560000-0x00007FFBAE021000-memory.dmp

Filesize
10.8MB

Download
memory/1288-1-0x0000000000CF0000-0x0000000000D0A000-memory.dmp

Filesize
104KB

Download