xworm | c2a9fefda9159dd2712510c1c9077a1885d0ebc45251285dad95ba7184b98856

Analysis

max time kernel
136s
max time network
150s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
17-11-2024 17:00

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General

Target

XwormLoader.exe
Size

7.9MB
MD5

5b757c6d0af650a77ba1bf7edea18b36
SHA1

c2ee4e12ff4b70511dbcab25dbf8b0d45f2d52b3
SHA256

c2a9fefda9159dd2712510c1c9077a1885d0ebc45251285dad95ba7184b98856
SHA512

93ca04887c63c3a0a4a5d42c48d0f4f7cc7fe7f6dad4dd45136ac048639d2edab66a2d2459779b9a2a075fa8981ea40567b34e5ed0535c1deecfe5e838385960
SSDEEP

196608:T7b4C6XrL5HfZBEhl3xZi5OslC9+PWbXooVl41u1mMFsr5:T7yvRZBEP3xZi5Oso+PWbXooL4Sa

Score

10^/10

xworm execution rat trojan

Malware Config

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/files/0x002800000004505f-13.dat	family_xworm
behavioral3/memory/2804-24-0x0000000000580000-0x00000000005AA000-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
1920	powershell.exe
4860	powershell.exe
3224	powershell.exe
4972	powershell.exe

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral3/files/0x002800000004505f-13.dat	net_reactor
behavioral3/memory/2804-24-0x0000000000580000-0x00000000005AA000-memory.dmp	net_reactor

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-1-5-21-2319007114-3335580451-2147236418-1000\Control Panel\International\Geo\Nation	XwormLoader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 5 IoCs

pid	Process
2804	svchost.exe
2784	Xworm V5.6.exe
4464	svchost.exe
1172	svchost.exe
4656	svchost.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4640	timeout.exe

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
1068	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2804	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4860	powershell.exe
4860	powershell.exe
3224	powershell.exe
3224	powershell.exe
4972	powershell.exe
4972	powershell.exe
1920	powershell.exe
1920	powershell.exe
2804	svchost.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	XwormLoader.exe
Token: SeDebugPrivilege	2804	svchost.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeIncreaseQuotaPrivilege	4860	powershell.exe
Token: SeSecurityPrivilege	4860	powershell.exe
Token: SeTakeOwnershipPrivilege	4860	powershell.exe
Token: SeLoadDriverPrivilege	4860	powershell.exe
Token: SeSystemProfilePrivilege	4860	powershell.exe
Token: SeSystemtimePrivilege	4860	powershell.exe
Token: SeProfSingleProcessPrivilege	4860	powershell.exe
Token: SeIncBasePriorityPrivilege	4860	powershell.exe
Token: SeCreatePagefilePrivilege	4860	powershell.exe
Token: SeBackupPrivilege	4860	powershell.exe
Token: SeRestorePrivilege	4860	powershell.exe
Token: SeShutdownPrivilege	4860	powershell.exe
Token: SeDebugPrivilege	4860	powershell.exe
Token: SeSystemEnvironmentPrivilege	4860	powershell.exe
Token: SeRemoteShutdownPrivilege	4860	powershell.exe
Token: SeUndockPrivilege	4860	powershell.exe
Token: SeManageVolumePrivilege	4860	powershell.exe
Token: 33	4860	powershell.exe
Token: 34	4860	powershell.exe
Token: 35	4860	powershell.exe
Token: 36	4860	powershell.exe
Token: SeDebugPrivilege	3224	powershell.exe
Token: SeIncreaseQuotaPrivilege	3224	powershell.exe
Token: SeSecurityPrivilege	3224	powershell.exe
Token: SeTakeOwnershipPrivilege	3224	powershell.exe
Token: SeLoadDriverPrivilege	3224	powershell.exe
Token: SeSystemProfilePrivilege	3224	powershell.exe
Token: SeSystemtimePrivilege	3224	powershell.exe
Token: SeProfSingleProcessPrivilege	3224	powershell.exe
Token: SeIncBasePriorityPrivilege	3224	powershell.exe
Token: SeCreatePagefilePrivilege	3224	powershell.exe
Token: SeBackupPrivilege	3224	powershell.exe
Token: SeRestorePrivilege	3224	powershell.exe
Token: SeShutdownPrivilege	3224	powershell.exe
Token: SeDebugPrivilege	3224	powershell.exe
Token: SeSystemEnvironmentPrivilege	3224	powershell.exe
Token: SeRemoteShutdownPrivilege	3224	powershell.exe
Token: SeUndockPrivilege	3224	powershell.exe
Token: SeManageVolumePrivilege	3224	powershell.exe
Token: 33	3224	powershell.exe
Token: 34	3224	powershell.exe
Token: 35	3224	powershell.exe
Token: 36	3224	powershell.exe
Token: SeDebugPrivilege	4972	powershell.exe
Token: SeIncreaseQuotaPrivilege	4972	powershell.exe
Token: SeSecurityPrivilege	4972	powershell.exe
Token: SeTakeOwnershipPrivilege	4972	powershell.exe
Token: SeLoadDriverPrivilege	4972	powershell.exe
Token: SeSystemProfilePrivilege	4972	powershell.exe
Token: SeSystemtimePrivilege	4972	powershell.exe
Token: SeProfSingleProcessPrivilege	4972	powershell.exe
Token: SeIncBasePriorityPrivilege	4972	powershell.exe
Token: SeCreatePagefilePrivilege	4972	powershell.exe
Token: SeBackupPrivilege	4972	powershell.exe
Token: SeRestorePrivilege	4972	powershell.exe
Token: SeShutdownPrivilege	4972	powershell.exe
Token: SeDebugPrivilege	4972	powershell.exe
Token: SeSystemEnvironmentPrivilege	4972	powershell.exe
Token: SeRemoteShutdownPrivilege	4972	powershell.exe
Token: SeUndockPrivilege	4972	powershell.exe
Token: SeManageVolumePrivilege	4972	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 2804	4840	XwormLoader.exe	82
PID 4840 wrote to memory of 2804	4840	XwormLoader.exe	82
PID 4840 wrote to memory of 2784	4840	XwormLoader.exe	83
PID 4840 wrote to memory of 2784	4840	XwormLoader.exe	83
PID 4840 wrote to memory of 476	4840	XwormLoader.exe	86
PID 4840 wrote to memory of 476	4840	XwormLoader.exe	86
PID 476 wrote to memory of 4640	476	cmd.exe	88
PID 476 wrote to memory of 4640	476	cmd.exe	88
PID 2804 wrote to memory of 4860	2804	svchost.exe	91
PID 2804 wrote to memory of 4860	2804	svchost.exe	91
PID 2804 wrote to memory of 3224	2804	svchost.exe	94
PID 2804 wrote to memory of 3224	2804	svchost.exe	94
PID 2804 wrote to memory of 4972	2804	svchost.exe	96
PID 2804 wrote to memory of 4972	2804	svchost.exe	96
PID 2804 wrote to memory of 1920	2804	svchost.exe	99
PID 2804 wrote to memory of 1920	2804	svchost.exe	99
PID 2804 wrote to memory of 1068	2804	svchost.exe	101
PID 2804 wrote to memory of 1068	2804	svchost.exe	101

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\XwormLoader.exe
"C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4840
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2804
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4860
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3224
- - 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'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4972
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:1920
- - 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"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1068
- C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  PID:2784
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8FEC.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:476
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4640

C:\ProgramData\svchost.exe
"C:\ProgramData\svchost.exe"
1⤵
- Executes dropped EXE
PID:4464

C:\ProgramData\svchost.exe
"C:\ProgramData\svchost.exe"
1⤵
- Executes dropped EXE
PID:1172

C:\ProgramData\svchost.exe
"C:\ProgramData\svchost.exe"
1⤵
- Executes dropped EXE
PID:4656

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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
3KB

MD5
b9cd68b5f314b5190f27a211d3506df0

SHA1
60c891d9a3c857fda4b75576420a54d38054c544

SHA256
8908f5cb47ad8627c2af37f08e4f42734cb8dd761734d27fb7745ca522e0018e

SHA512
1565a76680cf17ec9426dacab318124ff6374243e19550616069cd1a6149f356bb6f90ea524fbddce2082631be85831d5cb3a118d53c2c15c82096100b5b6182

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

Filesize
654B

MD5
11c6e74f0561678d2cf7fc075a6cc00c

SHA1
535ee79ba978554abcb98c566235805e7ea18490

SHA256
d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

SHA512
32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

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

Filesize
1KB

MD5
fb18c953754d64f443b68958dfe056f6

SHA1
5c4da338ad10f65caf1d74347b5fdd3307bb047b

SHA256
e871fb13f322aaccc389bbe1177ca16d34a7957d9ee9b364cbae2c40da76a351

SHA512
bd2d869fce5a22d5914197482c2d61c7d144f7e553b8455cfbc07aae9be0c69468761c344baf3362205451ed869202a33fc0546bfa3656fadd8f2768f9467ff6

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

Filesize
1KB

MD5
1f226627f4d6d1a60beaa62a78ebcdff

SHA1
de71a384b368d0957cbd9621698a3692736877f3

SHA256
c92043d27c790f34101640f871e19f8301accac6d485b89a050993a70ff54d97

SHA512
717fea32db24fbb70452def2263736a586914062f292128b3895474b2f2eca8570054a257d6d06631283ee5c7c3f3e05e9f8df1d226ee99bf95f9f699d1b18da

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

Filesize
1KB

MD5
43525dff7357941fc0aded54e58664cc

SHA1
2cc55117d7d77ec0e4eb9a26d94fbd424df0d14a

SHA256
39b2341a60ecc8e3f3e9f600767b615cedb96cb02eba35049470584d0092664f

SHA512
0d7d6950184efd707763c5e1fe9b2c268904736d7f40e971039dc907e8c21ced6bb6892053d84ced59811b78a7566a8f5cad0685f2c7c87c213457415aa5d51b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe

Filesize
14.9MB

MD5
db51a102eab752762748a2dec8f7f67a

SHA1
194688ec1511b83063f7b0167ae250764b7591d1

SHA256
93e5e7f018053c445c521b010caff89e61f61743635db3500aad32d6e495abb2

SHA512
fb2fb6605a17fedb65e636cf3716568e85b8ea423c23e0513eb87f3a3441e2cabc4c3e6346225a9bf7b81e97470f3ab516feea649a7afb5cdf02faff8d7f09a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3istqmcn.sd2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
144KB

MD5
4b90399888a12fb85ccc3d0190d5a1d3

SHA1
3326c027bac28b9480b0c7f621481a6cc033db4e

SHA256
cede03d0ef98d200bd5b68f6ca4e0d74e2a62fc430a38083663c3031dbb1c77f

SHA512
899ec2df2f5d70716ad5d0686bfe0a6c66ccbcf7f0485efbdfc0615f90b3526cd3d31069fa66c7c6ae8bba6ce92200836c50da40a3731888b7326b970d93216a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8FEC.tmp.bat

Filesize
163B

MD5
74f4e2e2ac6ce43e32914430dd07962e

SHA1
14d8ddc7f38d4defe91ba4e6e8f1d9b5f21ab99e

SHA256
535c6fcf6815c3aa161a31cec2c5bbdd75347e5e2893b8d0ac974105b4e99762

SHA512
a3aab4c109222a7aed43e15d90b40cf8ccb428d6663dd9365d40a17db24038a2f6963b4052ea9ecdc312ff0b6b9a3d7b7eb63fb7f5f2e88023971981758f5b89

Download Submit
memory/1920-99-0x00000197E2860000-0x00000197E29AF000-memory.dmp

Filesize
1.3MB

Download
memory/2784-47-0x00007FFE28530000-0x00007FFE28FF2000-memory.dmp

Filesize
10.8MB

Download
memory/2784-48-0x000001A170B10000-0x000001A1719F8000-memory.dmp

Filesize
14.9MB

Download
memory/2784-101-0x00007FFE28530000-0x00007FFE28FF2000-memory.dmp

Filesize
10.8MB

Download
memory/2804-25-0x00007FFE28533000-0x00007FFE28535000-memory.dmp

Filesize
8KB

Download
memory/2804-24-0x0000000000580000-0x00000000005AA000-memory.dmp

Filesize
168KB

Download
memory/3224-75-0x0000013AFF060000-0x0000013AFF1AF000-memory.dmp

Filesize
1.3MB

Download
memory/4840-4-0x000000001BA20000-0x000000001BAC6000-memory.dmp

Filesize
664KB

Download
memory/4840-6-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-0-0x00007FFE2B595000-0x00007FFE2B596000-memory.dmp

Filesize
4KB

Download
memory/4840-10-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-9-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-1-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-40-0x00007FFE2B595000-0x00007FFE2B596000-memory.dmp

Filesize
4KB

Download
memory/4840-46-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-5-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-42-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-41-0x000000001E5E0000-0x000000001EAAE000-memory.dmp

Filesize
4.8MB

Download
memory/4840-2-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4840-3-0x00007FFE2B2E0000-0x00007FFE2BC81000-memory.dmp

Filesize
9.6MB

Download
memory/4860-62-0x000001CB6EF40000-0x000001CB6F08F000-memory.dmp

Filesize
1.3MB

Download
memory/4860-59-0x000001CB6ED90000-0x000001CB6EDB2000-memory.dmp

Filesize
136KB

Download
memory/4972-87-0x000001876CC10000-0x000001876CD5F000-memory.dmp

Filesize
1.3MB

Download