xworm | 78da6bfa78c77c0f8a398be9a48d791036e3f15b9859a241aed7f7e1d20688e5

Analysis

max time kernel
139s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 14:21

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General

Target

Complier.exe
Size

8.7MB
MD5

2b83acb31286e3675a46c514f7b38554
SHA1

fb37844c5d0d4e2427000a5aea4e6a3acc0814d3
SHA256

78da6bfa78c77c0f8a398be9a48d791036e3f15b9859a241aed7f7e1d20688e5
SHA512

f7725b8e2337c3502bce5e2d1fe1127ddca8212bc53326cc78ede3a6543eb442fd169493a090c54d1f9b216a56225e8d2abf5233a20223ce2f4b7232e5edcc64
SSDEEP

196608:HsttcYiaVW7hyq1WYn56omfTut4jD6+qBbw5T+0nT4UjiSkwC+V1:H4fWz1Wa51mfTutiQB+pMUjl

Score

10^/10

xworm execution persistence rat trojan upx

Malware Config

Extracted

Family

xworm

fun-ce.gl.at.ply.gg:63401

Attributes

Install_directory
%ProgramData%
install_file
USB.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2760-18-0x00000000010E0000-0x00000000010F8000-memory.dmp	family_xworm
behavioral1/files/0x00090000000174a2-14.dat	family_xworm
behavioral1/memory/1756-182-0x0000000001300000-0x0000000001318000-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
1632	powershell.exe
1588	powershell.exe
2336	powershell.exe
1912	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HD-PLAYER.lnk	System interrupts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HD-PLAYER.lnk	System interrupts.exe

Executes dropped EXE 6 IoCs

pid	Process
2712	Built.exe
2760	System interrupts.exe
1744	Built.exe
1216	Process not Found
1756	HD-PLAYER
2916	HD-PLAYER

Loads dropped DLL 10 IoCs

pid	Process
2364	Complier.exe
2712	Built.exe
1744	Built.exe
1744	Built.exe
1744	Built.exe
1744	Built.exe
1744	Built.exe
1744	Built.exe
1744	Built.exe
1216	Process not Found

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\HD-PLAYER = "C:\\ProgramData\\HD-PLAYER"	System interrupts.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ip-api.com

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000500000001a4b0-91.dat	upx
behavioral1/memory/1744-93-0x000007FEEE900000-0x000007FEEEF63000-memory.dmp	upx

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
996	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1912	powershell.exe
1632	powershell.exe
1588	powershell.exe
2336	powershell.exe
2760	System interrupts.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	Complier.exe
Token: SeDebugPrivilege	2760	System interrupts.exe
Token: SeDebugPrivilege	1912	powershell.exe
Token: SeDebugPrivilege	1632	powershell.exe
Token: SeDebugPrivilege	1588	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	2760	System interrupts.exe
Token: SeDebugPrivilege	1756	HD-PLAYER
Token: SeDebugPrivilege	2916	HD-PLAYER

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2760	System interrupts.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2712	2364	Complier.exe	32
PID 2364 wrote to memory of 2712	2364	Complier.exe	32
PID 2364 wrote to memory of 2712	2364	Complier.exe	32
PID 2364 wrote to memory of 2760	2364	Complier.exe	33
PID 2364 wrote to memory of 2760	2364	Complier.exe	33
PID 2364 wrote to memory of 2760	2364	Complier.exe	33
PID 2712 wrote to memory of 1744	2712	Built.exe	34
PID 2712 wrote to memory of 1744	2712	Built.exe	34
PID 2712 wrote to memory of 1744	2712	Built.exe	34
PID 2760 wrote to memory of 1912	2760	System interrupts.exe	35
PID 2760 wrote to memory of 1912	2760	System interrupts.exe	35
PID 2760 wrote to memory of 1912	2760	System interrupts.exe	35
PID 2760 wrote to memory of 1632	2760	System interrupts.exe	37
PID 2760 wrote to memory of 1632	2760	System interrupts.exe	37
PID 2760 wrote to memory of 1632	2760	System interrupts.exe	37
PID 2760 wrote to memory of 1588	2760	System interrupts.exe	39
PID 2760 wrote to memory of 1588	2760	System interrupts.exe	39
PID 2760 wrote to memory of 1588	2760	System interrupts.exe	39
PID 2760 wrote to memory of 2336	2760	System interrupts.exe	41
PID 2760 wrote to memory of 2336	2760	System interrupts.exe	41
PID 2760 wrote to memory of 2336	2760	System interrupts.exe	41
PID 2760 wrote to memory of 996	2760	System interrupts.exe	43
PID 2760 wrote to memory of 996	2760	System interrupts.exe	43
PID 2760 wrote to memory of 996	2760	System interrupts.exe	43
PID 1052 wrote to memory of 1756	1052	taskeng.exe	46
PID 1052 wrote to memory of 1756	1052	taskeng.exe	46
PID 1052 wrote to memory of 1756	1052	taskeng.exe	46
PID 1052 wrote to memory of 2916	1052	taskeng.exe	48
PID 1052 wrote to memory of 2916	1052	taskeng.exe	48
PID 1052 wrote to memory of 2916	1052	taskeng.exe	48

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\Complier.exe
"C:\Users\Admin\AppData\Local\Temp\Complier.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Users\Admin\AppData\Local\Temp\Built.exe
  "C:\Users\Admin\AppData\Local\Temp\Built.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Users\Admin\AppData\Local\Temp\Built.exe
    "C:\Users\Admin\AppData\Local\Temp\Built.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:1744
- C:\Users\Admin\AppData\Local\Temp\System interrupts.exe
  "C:\Users\Admin\AppData\Local\Temp\System interrupts.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2760
- - 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\System interrupts.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1912
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System interrupts.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1632
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\HD-PLAYER'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1588
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'HD-PLAYER'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2336
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "HD-PLAYER" /tr "C:\ProgramData\HD-PLAYER"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:996

C:\Windows\system32\taskeng.exe
taskeng.exe {422ABAC2-B181-4063-AB89-2A50A8E76A3B} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\ProgramData\HD-PLAYER
  C:\ProgramData\HD-PLAYER
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\ProgramData\HD-PLAYER
  C:\ProgramData\HD-PLAYER
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2916

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\Temp\System interrupts.exe

Filesize
72KB

MD5
776b0200de5d99a2a92b747733c541dc

SHA1
77c74231bc284a1618e7989e7e0d16bca67ff8cf

SHA256
1e4aa21d558fe059d1d30a000000927decdc3f2676c303a4984d278b92440724

SHA512
de016164ff5542e0e598a724488fb5a0a6f1c4f206a17c9e15ad3230a0bb58355f2191a764a29943225ca9504f6b5a50abc3e3d070208884df2afe1401ac1fd0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI27122\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
21KB

MD5
517eb9e2cb671ae49f99173d7f7ce43f

SHA1
4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

SHA256
57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

SHA512
492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI27122\api-ms-win-core-timezone-l1-1-0.dll

Filesize
21KB

MD5
d12403ee11359259ba2b0706e5e5111c

SHA1
03cc7827a30fd1dee38665c0cc993b4b533ac138

SHA256
f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

SHA512
9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI27122\python313.dll

Filesize
1.8MB

MD5
6ef5d2f77064df6f2f47af7ee4d44f0f

SHA1
0003946454b107874aa31839d41edcda1c77b0af

SHA256
ab7c640f044d2eb7f4f0a4dfe5e719dfd9e5fcd769943233f5cece436870e367

SHA512
1662cc02635d63b8114b41d11ec30a2af4b0b60209196aac937c2a608588fee47c6e93163ea6bf958246c32759ac5c82a712ea3d690e796e2070ac0ff9104266

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI27122\ucrtbase.dll

Filesize
992KB

MD5
0e0bac3d1dcc1833eae4e3e4cf83c4ef

SHA1
4189f4459c54e69c6d3155a82524bda7549a75a6

SHA256
8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

SHA512
a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
05e3ea9f8ddcf8182cc2666ca8ba4a1f

SHA1
a1a331a610a51f5d2e5990947170e4fc28253004

SHA256
4636e5ca32a34822abc66f91470749fa3b1e152fac3083636364f14a9d3f81b1

SHA512
8a318528395383fff6135d41a9f44a6c7e7e9d7dca91468dc5774552f566484ef795755566553ee0f73c279e0dc776569e2feb7b85b026b709d3f7e0dc1ff29c

Download Submit
\Users\Admin\AppData\Local\Temp\Built.exe

Filesize
8.8MB

MD5
06da2ccc85aca2085657c0b1c960e772

SHA1
7192cddca4cdb3509b13839bee32869a1020478d

SHA256
b5a5f2a8281bacf969b9f3be9c650763a2af8587048b0645b6a7bfa452764c90

SHA512
aba80f0f5ad95cb1e56f9e44b925cfda4a06ee64a3bfa5e60d4bed4f17901ce74a938b0d7f0231bce217c9c2cc945a9926d5e2f5dc53d4f58328533a2c65351a

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI27122\api-ms-win-core-file-l1-2-0.dll

Filesize
21KB

MD5
1c58526d681efe507deb8f1935c75487

SHA1
0e6d328faf3563f2aae029bc5f2272fb7a742672

SHA256
ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

SHA512
8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI27122\api-ms-win-core-file-l2-1-0.dll

Filesize
18KB

MD5
bfffa7117fd9b1622c66d949bac3f1d7

SHA1
402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

SHA256
1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

SHA512
b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI27122\api-ms-win-core-localization-l1-2-0.dll

Filesize
21KB

MD5
724223109e49cb01d61d63a8be926b8f

SHA1
072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

SHA256
4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

SHA512
19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

Download Submit
memory/1632-109-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download
memory/1632-108-0x000000001B710000-0x000000001B9F2000-memory.dmp

Filesize
2.9MB

Download
memory/1744-93-0x000007FEEE900000-0x000007FEEEF63000-memory.dmp

Filesize
6.4MB

Download
memory/1756-182-0x0000000001300000-0x0000000001318000-memory.dmp

Filesize
96KB

Download
memory/1912-101-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/1912-102-0x0000000001F50000-0x0000000001F58000-memory.dmp

Filesize
32KB

Download
memory/2364-74-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-2-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2364-0-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x0000000000B50000-0x0000000001416000-memory.dmp

Filesize
8.8MB

Download
memory/2760-94-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2760-18-0x00000000010E0000-0x00000000010F8000-memory.dmp

Filesize
96KB

Download
memory/2760-121-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2760-178-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2760-68-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download