xworm | c2a9fefda9159dd2712510c1c9077a1885d0ebc45251285dad95ba7184b98856

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-11-2024 19:33

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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
behavioral2/files/0x000e000000023b50-12.dat	family_xworm
behavioral2/memory/1340-20-0x00000000006E0000-0x000000000070A000-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
4404	powershell.exe
4472	powershell.exe
1400	powershell.exe
3084	powershell.exe

.NET Reactor proctector 2 IoCs

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

resource	yara_rule
behavioral2/files/0x000e000000023b50-12.dat	net_reactor
behavioral2/memory/1340-20-0x00000000006E0000-0x000000000070A000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	XwormLoader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 5 IoCs

pid	Process
1340	svchost.exe
4076	Xworm V5.6.exe
1764	svchost.exe
3412	svchost.exe
3992	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
4868	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
4240	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1340	svchost.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1400	powershell.exe
1400	powershell.exe
1400	powershell.exe
3084	powershell.exe
3084	powershell.exe
3084	powershell.exe
4404	powershell.exe
4404	powershell.exe
4404	powershell.exe
4472	powershell.exe
4472	powershell.exe
1340	svchost.exe
1340	svchost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	XwormLoader.exe
Token: SeDebugPrivilege	1340	svchost.exe
Token: SeDebugPrivilege	1400	powershell.exe
Token: SeDebugPrivilege	3084	powershell.exe
Token: SeDebugPrivilege	4404	powershell.exe
Token: SeDebugPrivilege	4472	powershell.exe
Token: SeDebugPrivilege	1764	svchost.exe
Token: SeDebugPrivilege	3412	svchost.exe
Token: SeDebugPrivilege	3992	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1340	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 1340	4912	XwormLoader.exe	89
PID 4912 wrote to memory of 1340	4912	XwormLoader.exe	89
PID 4912 wrote to memory of 4076	4912	XwormLoader.exe	91
PID 4912 wrote to memory of 4076	4912	XwormLoader.exe	91
PID 4912 wrote to memory of 1844	4912	XwormLoader.exe	93
PID 4912 wrote to memory of 1844	4912	XwormLoader.exe	93
PID 1844 wrote to memory of 4868	1844	cmd.exe	95
PID 1844 wrote to memory of 4868	1844	cmd.exe	95
PID 1340 wrote to memory of 1400	1340	svchost.exe	97
PID 1340 wrote to memory of 1400	1340	svchost.exe	97
PID 1340 wrote to memory of 3084	1340	svchost.exe	99
PID 1340 wrote to memory of 3084	1340	svchost.exe	99
PID 1340 wrote to memory of 4404	1340	svchost.exe	101
PID 1340 wrote to memory of 4404	1340	svchost.exe	101
PID 1340 wrote to memory of 4472	1340	svchost.exe	104
PID 1340 wrote to memory of 4472	1340	svchost.exe	104
PID 1340 wrote to memory of 4240	1340	svchost.exe	113
PID 1340 wrote to memory of 4240	1340	svchost.exe	113

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:4912
- 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:1340
- - 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:1400
- - 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:3084
- - 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:4404
- - 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:4472
- - 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:4240
- 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:4076
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBA67.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1844
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4868

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1764

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3412

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3992

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
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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
b51dc9e5ec3c97f72b4ca9488bbb4462

SHA1
5c1e8c0b728cd124edcacefb399bbd5e25b21bd3

SHA256
976f9534aa2976c85c2455bdde786a3f55d63aefdd40942eba1223c4c93590db

SHA512
0e5aa6cf64c535aefb833e5757b68e1094c87424abe2615a7d7d26b1b31eff358d12e36e75ca57fd690a9919b776600bf4c5c0e5a5df55366ba62238bdf3f280

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

Filesize
944B

MD5
e60eb305a7b2d9907488068b7065abd3

SHA1
1643dd7f915ac50c75bc01c53d68c5dafb9ce28d

SHA256
ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135

SHA512
95c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b

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_ims5y52s.umq.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\tmpBA67.tmp.bat

Filesize
163B

MD5
03ae23dce38c12b9c69c52cec7dddcf5

SHA1
b6d714cc60c24095f3e6b92c483e61c46ee7ae24

SHA256
52572d011abc807fc21f311893eb16fa34116d6273a2e132635bd345dd6e9156

SHA512
a08837a63a60ce363372a08ffed394572ad76c4d76e78ffaf22cde65561faf100a65fc7abb20e82432514159f2891ff651fe0b91d29355d250c1fda824837f6c

Download Submit
memory/1340-20-0x00000000006E0000-0x000000000070A000-memory.dmp

Filesize
168KB

Download
memory/1340-21-0x00007FFD9B793000-0x00007FFD9B795000-memory.dmp

Filesize
8KB

Download
memory/1400-52-0x0000027317BC0000-0x0000027317BE2000-memory.dmp

Filesize
136KB

Download
memory/4076-41-0x00000236D7730000-0x00000236D8618000-memory.dmp

Filesize
14.9MB

Download
memory/4076-90-0x00007FFD9B790000-0x00007FFD9C251000-memory.dmp

Filesize
10.8MB

Download
memory/4076-39-0x00007FFD9B790000-0x00007FFD9C251000-memory.dmp

Filesize
10.8MB

Download
memory/4912-8-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-40-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-34-0x00007FFD9EEA5000-0x00007FFD9EEA6000-memory.dmp

Filesize
4KB

Download
memory/4912-35-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-33-0x000000001EBD0000-0x000000001F09E000-memory.dmp

Filesize
4.8MB

Download
memory/4912-9-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-0-0x00007FFD9EEA5000-0x00007FFD9EEA6000-memory.dmp

Filesize
4KB

Download
memory/4912-5-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-4-0x000000001C040000-0x000000001C0E6000-memory.dmp

Filesize
664KB

Download
memory/4912-3-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-2-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download
memory/4912-1-0x00007FFD9EBF0000-0x00007FFD9F591000-memory.dmp

Filesize
9.6MB

Download