xworm | 99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 17:45

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General

Target

99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
Size

7.9MB
MD5

626b15a696ab0909a6a2f73bc50d1f9b
SHA1

0e7f8f49236828da8586d5d779e46e454509e80f
SHA256

99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861
SHA512

56c6feb457e1894a6dd4b79cb19acc62036203be58c588bf09e88c359a5346b909a538112053ca42f2301b04a9bcc1ea02e3d77b7ebc484b80523879a0b2fd03
SSDEEP

196608:mLO9Y0aVhTDfyGR21X5Sp6GemDMPwQaYWhSiMRVA:39Y0aVBDfDspfaMPgS1A

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

109.206.246.102:3387

Mutex

MlpCbb9Z3AhhmnSA

Attributes

Install_directory
%AppData%
install_file
骇客开发.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023d17-74.dat	family_xworm
behavioral2/memory/1428-76-0x0000000000E30000-0x0000000000E60000-memory.dmp	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
2024	powershell.exe
1768	powershell.exe
2668	powershell.exe
5096	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	tmpbja3rg80

Executes dropped EXE 4 IoCs

pid	Process
1428	tmpbja3rg80
972	骇客开发.exe
1384	骇客开发.exe
1572	骇客开发.exe

Loads dropped DLL 7 IoCs

pid	Process
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\骇客开发 = "C:\\Users\\Admin\\AppData\\Roaming\\骇客开发.exe"	tmpbja3rg80

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
436	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1428	tmpbja3rg80

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1768	powershell.exe
1768	powershell.exe
2668	powershell.exe
2668	powershell.exe
2668	powershell.exe
5096	powershell.exe
5096	powershell.exe
5096	powershell.exe
2024	powershell.exe
2024	powershell.exe
2024	powershell.exe
1428	tmpbja3rg80
1428	tmpbja3rg80

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	tmpbja3rg80
Token: SeDebugPrivilege	1768	powershell.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	5096	powershell.exe
Token: SeDebugPrivilege	2024	powershell.exe
Token: SeDebugPrivilege	972	骇客开发.exe
Token: SeDebugPrivilege	1384	骇客开发.exe
Token: SeDebugPrivilege	1572	骇客开发.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1428	tmpbja3rg80

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2204	1936	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe	87
PID 1936 wrote to memory of 2204	1936	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe	87
PID 2204 wrote to memory of 1428	2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe	88
PID 2204 wrote to memory of 1428	2204	99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe	88
PID 1428 wrote to memory of 1768	1428	tmpbja3rg80	96
PID 1428 wrote to memory of 1768	1428	tmpbja3rg80	96
PID 1428 wrote to memory of 2668	1428	tmpbja3rg80	98
PID 1428 wrote to memory of 2668	1428	tmpbja3rg80	98
PID 1428 wrote to memory of 5096	1428	tmpbja3rg80	101
PID 1428 wrote to memory of 5096	1428	tmpbja3rg80	101
PID 1428 wrote to memory of 2024	1428	tmpbja3rg80	103
PID 1428 wrote to memory of 2024	1428	tmpbja3rg80	103
PID 1428 wrote to memory of 436	1428	tmpbja3rg80	107
PID 1428 wrote to memory of 436	1428	tmpbja3rg80	107

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\99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
"C:\Users\Admin\AppData\Local\Temp\99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe
  "C:\Users\Admin\AppData\Local\Temp\99ebce7090f154162b599e5f7142593e80555e46d32f23a3c3323f1bbed1d861.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2204
- - C:\Users\Admin\AppData\Local\Temp\tmpbja3rg80
    C:\Users\Admin\AppData\Local\Temp\tmpbja3rg80
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1428
  - - 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\tmpbja3rg80'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1768
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'tmpbja3rg80'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2668
  - - 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\骇客开发.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5096
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '骇客开发.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2024
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "骇客开发" /tr "C:\Users\Admin\AppData\Roaming\骇客开发.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:436

C:\Users\Admin\AppData\Roaming\骇客开发.exe
C:\Users\Admin\AppData\Roaming\骇客开发.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:972

C:\Users\Admin\AppData\Roaming\骇客开发.exe
C:\Users\Admin\AppData\Roaming\骇客开发.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1384

C:\Users\Admin\AppData\Roaming\骇客开发.exe
C:\Users\Admin\AppData\Roaming\骇客开发.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1572

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
440cb38dbee06645cc8b74d51f6e5f71

SHA1
d7e61da91dc4502e9ae83281b88c1e48584edb7c

SHA256
8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

SHA512
3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\骇客开发.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
be9965796e35a7999ce50af07f73b631

SHA1
dde100f3f5a51fa399755fefd49da003d887742a

SHA256
6ea6a56f5d5ec6f60b5a748840eed28859f792db2e37f4c1c419e3a92fc619b3

SHA512
45369246c8f6e80fa7a3c34db98922702e5f10e67348c94bb27f5bb241ad72cecd72ff5843a2c6b47cec390a6b9c97ba3c4d4244c62b8119ce1b2ca0c3dc3e37

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

Filesize
944B

MD5
9a2c763c5ff40e18e49ad63c7c3b0088

SHA1
4b289ea34755323fa869da6ad6480d8d12385a36

SHA256
517807921c55bd16cd8a8bfae3d5dc19444c66f836b66acd5593e3080acbaf8e

SHA512
3af01926bc7de92076067d158d7250b206d396b3282ee0db43639d04d91bd9ff763acbce12c7822914824984a3c5fdd1b8dbf1ad2ee88233d47f0f808b746bc8

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

Filesize
944B

MD5
1ede1175b176df450cee08ceea53267b

SHA1
42b837e37cf9c6315c4de761538576813b7101eb

SHA256
3221e8f1947d3d81d032837aee189d97ba5fb4365029eeb2eb16e831293372d6

SHA512
562239cc3215e4a7f0eb37faae6829472270c33423f6a0252794f404a86a6faf06c429c480e419d2f26167671613ccc06f3f622e8d7b6b7254fddcaa51b5cdec

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\VCRUNTIME140.dll

Filesize
106KB

MD5
4585a96cc4eef6aafd5e27ea09147dc6

SHA1
489cfff1b19abbec98fda26ac8958005e88dd0cb

SHA256
a8f950b4357ec12cfccddc9094cca56a3d5244b95e09ea6e9a746489f2d58736

SHA512
d78260c66331fe3029d2cc1b41a5d002ec651f2e3bbf55076d65839b5e3c6297955afd4d9ab8951fbdc9f929dbc65eb18b14b59bce1f2994318564eb4920f286

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\_bz2.pyd

Filesize
82KB

MD5
a62207fc33140de460444e191ae19b74

SHA1
9327d3d4f9d56f1846781bcb0a05719dea462d74

SHA256
ebcac51449f323ae3ae961a33843029c34b6a82138ccd9214cf99f98dd2148c2

SHA512
90f9db9ee225958cb3e872b79f2c70cb1fd2248ebaa8f3282afff9250285852156bf668f5cfec49a4591b416ce7ebaaac62d2d887152f5356512f2347e3762b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\_ctypes.pyd

Filesize
120KB

MD5
9b344f8d7ce5b57e397a475847cc5f66

SHA1
aff1ccc2608da022ecc8d0aba65d304fe74cdf71

SHA256
b1214d7b7efd9d4b0f465ec3463512a1cbc5f59686267030f072e6ce4b2a95cf

SHA512
2b0d9e1b550bf108fa842324ab26555f2a224aefff517fdb16df85693e05adaf0d77ebe49382848f1ec68dc9b5ae75027a62c33721e42a1566274d1a2b1baa41

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\_lzma.pyd

Filesize
155KB

MD5
0c7ea68ca88c07ae6b0a725497067891

SHA1
c2b61a3e230b30416bc283d1f3ea25678670eb74

SHA256
f74aaf0aa08cf90eb1eb23a474ccb7cb706b1ede7f911daf7ae68480765bdf11

SHA512
fd52f20496a12e6b20279646663d880b1354cffea10793506fe4560ed7da53e4efba900ae65c9996fbb3179c83844a9674051385e6e3c26fb2622917351846b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\base_library.zip

Filesize
1.7MB

MD5
c02b1b28775aa757d008b2b0e52a4943

SHA1
f5c12fa0eddb3a4127bd0866714bdcf10a7abead

SHA256
eb71c75ad9fa6aba6e8b793948a96029a190b612bb289c780621757d90c08577

SHA512
58ae35c802ef81da05e9aeef0f16e9b27d6391e9dffb8aa77ea8406497201766d9fd7834d40a167485f452f57b51066988afc344c733129d1e4fad78b8dcf1c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\libffi-8.dll

Filesize
38KB

MD5
0f8e4992ca92baaf54cc0b43aaccce21

SHA1
c7300975df267b1d6adcbac0ac93fd7b1ab49bd2

SHA256
eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a

SHA512
6e1b223462dc124279bfca74fd2c66fe18b368ffbca540c84e82e0f5bcbea0e10cc243975574fa95ace437b9d8b03a446ed5ee0c9b1b094147cefaf704dfe978

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\python311.dll

Filesize
5.5MB

MD5
e2bd5ae53427f193b42d64b8e9bf1943

SHA1
7c317aad8e2b24c08d3b8b3fba16dd537411727f

SHA256
c4844b05e3a936b130adedb854d3c04d49ee54edb43e9d36f8c4ae94ccb78400

SHA512
ae23a6707e539c619fd5c5b4fc6e4734edc91f89ebe024d25ff2a70168da6105ac0bd47cf6bf3715af6411963caf0acbb4632464e1619ca6361abf53adfe7036

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI19362\ucrtbase.dll

Filesize
1021KB

MD5
4e326feeb3ebf1e3eb21eeb224345727

SHA1
f156a272dbc6695cc170b6091ef8cd41db7ba040

SHA256
3c60056371f82e4744185b6f2fa0c69042b1e78804685944132974dd13f3b6d9

SHA512
be9420a85c82eeee685e18913a7ff152fcead72a90ddcc2bcc8ab53a4a1743ae98f49354023c0a32b3a1d919bda64b5d455f6c3a49d4842bbba4aa37c1d05d67

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u5dt1trv.vbl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpbja3rg80

Filesize
171KB

MD5
3de65358ac4bfd660b3a0732fa792efd

SHA1
db110bc382cff7b01cfcad339d2872957515353b

SHA256
c1962fb2b39497d87d631556d48b898393681658a9c40b65164de283c79cf524

SHA512
24ca234b09ad247116ab2142a9f6de4317e24103e21f530c7c5f9dd5c78591c1c3ac87461ce39d9354d0990e6ab9d20fb2ab14cfa2bb7a6b91beaf5bbc1a67f0

Download Submit
memory/1428-127-0x00007FFC52E53000-0x00007FFC52E55000-memory.dmp

Filesize
8KB

Download
memory/1428-75-0x00007FFC52E53000-0x00007FFC52E55000-memory.dmp

Filesize
8KB

Download
memory/1428-129-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1428-130-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1428-76-0x0000000000E30000-0x0000000000E60000-memory.dmp

Filesize
192KB

Download
memory/1768-92-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1768-89-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1768-88-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1768-87-0x00007FFC52E50000-0x00007FFC53911000-memory.dmp

Filesize
10.8MB

Download
memory/1768-86-0x000001372D500000-0x000001372D522000-memory.dmp

Filesize
136KB

Download