xworm | bfc092b384976e97153bae0e29359461bfd65fce5ad8188d6460de57bc680eaf

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15-07-2024 08:43

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General

Target

1/3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Size

487KB
MD5

f451292bbe0b4c16d244c251105de16a
SHA1

a527d277ccc25ad97ae64fb76767f1e2cda66ff2
SHA256

3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a
SHA512

d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a
SSDEEP

6144:MNDD+bHpEiGXQ4rnc+UI73whSk7MIhWI3tf5Jx/R7ZCe7w4uoVLdaPYZHuW31bZ+:MNncp0jUI73F0DhHbbzCMwI11b

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

schools-copper.gl.at.ply.gg:14154

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe
telegram
https://api.telegram.org/bot6887301557:AAE2e7AcjyzPeaHQb_2XBthrT3TTCKt7jCs/sendMessage?chat_id=7045481276

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral9/memory/2564-1-0x00000000008F0000-0x000000000096E000-memory.dmp	family_xworm
behavioral9/files/0x000f0000000233f0-58.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
1752	powershell.exe
1972	powershell.exe
1076	powershell.exe
468	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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Executes dropped EXE 2 IoCs

pid	Process
3060	svchost.exe
4900	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-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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
16	ip-api.com

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
3972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
468	powershell.exe
468	powershell.exe
1752	powershell.exe
1752	powershell.exe
1972	powershell.exe
1972	powershell.exe
1076	powershell.exe
1076	powershell.exe
2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	468	powershell.exe
Token: SeDebugPrivilege	1752	powershell.exe
Token: SeDebugPrivilege	1972	powershell.exe
Token: SeDebugPrivilege	1076	powershell.exe
Token: SeDebugPrivilege	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	3060	svchost.exe
Token: SeDebugPrivilege	4900	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 468	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	85
PID 2564 wrote to memory of 468	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	85
PID 2564 wrote to memory of 1752	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	87
PID 2564 wrote to memory of 1752	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	87
PID 2564 wrote to memory of 1972	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	89
PID 2564 wrote to memory of 1972	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	89
PID 2564 wrote to memory of 1076	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	91
PID 2564 wrote to memory of 1076	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	91
PID 2564 wrote to memory of 3972	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	93
PID 2564 wrote to memory of 3972	2564	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	93

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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
"C:\Users\Admin\AppData\Local\Temp\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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:2564
- 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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:468
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1752
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1972
- 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:1076
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3972

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3060

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4900

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:\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
e243a38635ff9a06c87c2a61a2200656

SHA1
ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc

SHA256
af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f

SHA512
4418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4

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

Filesize
944B

MD5
ce4540390cc4841c8973eb5a3e9f4f7d

SHA1
2293f30a6f4c9538bc5b06606c10a50ab4ecef8e

SHA256
e834e1da338b9644d538cefd70176768816da2556939c1255d386931bd085105

SHA512
2a3e466cb5a81d2b65256053b768a98321eb3e65ff46353eefc9864f14a391748116f050e7482ddd73a51575bf0a6fc5c673023dade62dbd8b174442bae1cc6b

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

Filesize
944B

MD5
fd98baf5a9c30d41317663898985593b

SHA1
ea300b99f723d2429d75a6c40e0838bf60f17aad

SHA256
9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

SHA512
bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yqopoojg.nxq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\svchost.exe

Filesize
487KB

MD5
f451292bbe0b4c16d244c251105de16a

SHA1
a527d277ccc25ad97ae64fb76767f1e2cda66ff2

SHA256
3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a

SHA512
d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a

Download Submit
memory/468-14-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/468-15-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/468-18-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/468-13-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/468-8-0x0000023D7F120000-0x0000023D7F142000-memory.dmp

Filesize
136KB

Download
memory/2564-0-0x00007FFBABAD3000-0x00007FFBABAD5000-memory.dmp

Filesize
8KB

Download
memory/2564-2-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/2564-57-0x00007FFBABAD0000-0x00007FFBAC591000-memory.dmp

Filesize
10.8MB

Download
memory/2564-1-0x00000000008F0000-0x000000000096E000-memory.dmp

Filesize
504KB

Download