xworm | da4c9369654d0ecbaec7aee156c535d0cb7908d699cfe843ebe19cd06464d28a

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 07:35

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General

Target

Cloudly.exe
Size

9.2MB
MD5

835738a04a41a463202ac670f934d584
SHA1

579cc343bd073884ae498aa35a2dc064808f54e9
SHA256

da4c9369654d0ecbaec7aee156c535d0cb7908d699cfe843ebe19cd06464d28a
SHA512

7cf677998b8ca6050997df1fb2d6770f66df60cad7a8dc1823dbebdb2fac14d144b9bd4295245a329f715bff9487d1b0f0b7f402d0d932b833533fdb5c1939be
SSDEEP

196608:kB10wrPssFP9xEFbn+ra7o45RS2q/kZYx3ArKHXxWqzzgLxq+U8lSww4BdU:kJrPPFP92cra75dZYkEBN0AcXfBdU

Score

10^/10

xworm execution persistence pyinstaller rat trojan

Malware Config

Extracted

Family

xworm

feb-arrested.gl.at.ply.gg:17830

Attributes

Install_directory
%Temp%
install_file
svchost.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/files/0x000700000001211a-5.dat	family_xworm
behavioral1/memory/2760-7-0x00000000002B0000-0x00000000002E4000-memory.dmp	family_xworm
behavioral1/memory/1636-166-0x0000000000AE0000-0x0000000000B14000-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
1664	powershell.exe
2116	powershell.exe
1860	powershell.exe
1852	powershell.exe

Executes dropped EXE 4 IoCs

pid	Process
2760	Cloud.exe
2696	jelly.exe
2528	jelly.exe
1636	svchost.exe

Loads dropped DLL 8 IoCs

pid	Process
2156	Cloudly.exe
2528	jelly.exe
2528	jelly.exe
2528	jelly.exe
2528	jelly.exe
2528	jelly.exe
2528	jelly.exe
2528	jelly.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	Cloud.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

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
behavioral1/files/0x0008000000016ea4-10.dat	pyinstaller

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

defense_evasion

pid	Process
2740	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
1328	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2760	Cloud.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1664	powershell.exe
2116	powershell.exe
1860	powershell.exe
1852	powershell.exe
2760	Cloud.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	Cloud.exe
Token: SeDebugPrivilege	1664	powershell.exe
Token: SeDebugPrivilege	2116	powershell.exe
Token: SeDebugPrivilege	1860	powershell.exe
Token: SeDebugPrivilege	1852	powershell.exe
Token: SeDebugPrivilege	2760	Cloud.exe
Token: SeDebugPrivilege	1636	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2760	Cloud.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2760	2156	Cloudly.exe	30
PID 2156 wrote to memory of 2760	2156	Cloudly.exe	30
PID 2156 wrote to memory of 2760	2156	Cloudly.exe	30
PID 2156 wrote to memory of 2696	2156	Cloudly.exe	31
PID 2156 wrote to memory of 2696	2156	Cloudly.exe	31
PID 2156 wrote to memory of 2696	2156	Cloudly.exe	31
PID 2696 wrote to memory of 2528	2696	jelly.exe	33
PID 2696 wrote to memory of 2528	2696	jelly.exe	33
PID 2696 wrote to memory of 2528	2696	jelly.exe	33
PID 2760 wrote to memory of 1664	2760	Cloud.exe	35
PID 2760 wrote to memory of 1664	2760	Cloud.exe	35
PID 2760 wrote to memory of 1664	2760	Cloud.exe	35
PID 2760 wrote to memory of 2116	2760	Cloud.exe	37
PID 2760 wrote to memory of 2116	2760	Cloud.exe	37
PID 2760 wrote to memory of 2116	2760	Cloud.exe	37
PID 2760 wrote to memory of 1860	2760	Cloud.exe	39
PID 2760 wrote to memory of 1860	2760	Cloud.exe	39
PID 2760 wrote to memory of 1860	2760	Cloud.exe	39
PID 2760 wrote to memory of 1852	2760	Cloud.exe	41
PID 2760 wrote to memory of 1852	2760	Cloud.exe	41
PID 2760 wrote to memory of 1852	2760	Cloud.exe	41
PID 2760 wrote to memory of 1328	2760	Cloud.exe	43
PID 2760 wrote to memory of 1328	2760	Cloud.exe	43
PID 2760 wrote to memory of 1328	2760	Cloud.exe	43
PID 2536 wrote to memory of 1636	2536	taskeng.exe	46
PID 2536 wrote to memory of 1636	2536	taskeng.exe	46
PID 2536 wrote to memory of 1636	2536	taskeng.exe	46
PID 2760 wrote to memory of 2776	2760	Cloud.exe	47
PID 2760 wrote to memory of 2776	2760	Cloud.exe	47
PID 2760 wrote to memory of 2776	2760	Cloud.exe	47
PID 2760 wrote to memory of 2692	2760	Cloud.exe	49
PID 2760 wrote to memory of 2692	2760	Cloud.exe	49
PID 2760 wrote to memory of 2692	2760	Cloud.exe	49
PID 2692 wrote to memory of 2740	2692	cmd.exe	51
PID 2692 wrote to memory of 2740	2692	cmd.exe	51
PID 2692 wrote to memory of 2740	2692	cmd.exe	51

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\Cloudly.exe
"C:\Users\Admin\AppData\Local\Temp\Cloudly.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2156
- C:\ProgramData\Cloud.exe
  "C:\ProgramData\Cloud.exe"
  2⤵
  - 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:2760
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Cloud.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1664
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Cloud.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2116
- - 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:1860
- - 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:1852
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1328
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /delete /f /tn "svchost"
    3⤵
    PID:2776
- - C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpED2C.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:2740
- C:\ProgramData\jelly.exe
  "C:\ProgramData\jelly.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\ProgramData\jelly.exe
    "C:\ProgramData\jelly.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:2528

C:\Windows\system32\taskeng.exe
taskeng.exe {EC684166-0F63-4714-9E39-65793BB9E76D} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1636

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:\ProgramData\Cloud.exe

Filesize
186KB

MD5
bea3a6d3fe25fde4a5837129ff579eff

SHA1
90ab2a9b6692a7efeec4cad65bc449d6134087d9

SHA256
6bb2751248b7d9bf1076139d5abaee7bb6473e7375827052e68b6726cd6b80b8

SHA512
34f45e59d7587ff54c45d75d6df63109cc7c886ffb3de7820ac1db8236dafa5ad489c11338314121ba9829a7803d366aeea3833fbd0e99e02cc4a1cde0ae84c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpED2C.tmp.bat

Filesize
138B

MD5
1a930c92c5e07847742a6d13689e5e27

SHA1
6be79078ca8ab8f6d1d8703836c8c4ee3d2245de

SHA256
4e6a0bd87729fb6b013f0b6455b29bd9ef809907344dac4883be3c16fedb9c37

SHA512
ca9ee3011deb6e7cc505ed48bf967b7b948e75689409cfc93cdc5ab1541c88672ea2465c57e92bf52f85972cfac154f9bb4893fee3ec42b2b61e691cc4577d2a

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

Filesize
7KB

MD5
627afa9aca217538460181c12ed87336

SHA1
512704887330c2777c569ca4a4228859b99f3df5

SHA256
d265e1515db8930a122740f3ca8ed30e445ff38b0304edfc1e9aaf405ce6c9d6

SHA512
51aa6153771c9da0e75ed455116a9e5a31be4f9b131d94a1d6cd488d7ecec990a18f2a2e8995b29b7e4ec47d2992861cda67b5287858ff89153845ceca688f86

Download Submit
\ProgramData\jelly.exe

Filesize
8.9MB

MD5
36e969c7bc4386678f0937c25a89f606

SHA1
38a45129709b4eeb70b5daaf031dce37ca7ebda2

SHA256
48f717b973baa7ebc2870d10b6f99542f78736dca3f5a1517328c5591a930386

SHA512
aed7eb9e1378b65fa5cdcfcf45f49885c4ffe8c2d3855dde6d7d57d0c9cf2455c54496a0b229ff3a0c46df0544b9ebf3375b7ac042efa7b84ed1658ce91c0510

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26962\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\_MEI26962\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\_MEI26962\api-ms-win-core-localization-l1-2-0.dll

Filesize
21KB

MD5
724223109e49cb01d61d63a8be926b8f

SHA1
072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

SHA256
4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

SHA512
19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26962\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
21KB

MD5
517eb9e2cb671ae49f99173d7f7ce43f

SHA1
4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

SHA256
57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

SHA512
492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26962\api-ms-win-core-timezone-l1-1-0.dll

Filesize
21KB

MD5
d12403ee11359259ba2b0706e5e5111c

SHA1
03cc7827a30fd1dee38665c0cc993b4b533ac138

SHA256
f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

SHA512
9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26962\python313.dll

Filesize
5.8MB

MD5
3aad23292404a7038eb07ce5a6348256

SHA1
35cac5479699b28549ebe36c1d064bfb703f0857

SHA256
78b1dd211c0e66a0603df48da2c9b67a915ab3258701b9285d3faa255ed8dc25

SHA512
f5b6ef04e744d2c98c1ef9402d7a8ce5cda3b008837cf2c37a8b6d0cd1b188ca46585a40b2db7acf019f67e6ced59eff5bc86e1aaf48d3c3b62fecf37f3aec6b

Download Submit
\Users\Admin\AppData\Local\Temp\_MEI26962\ucrtbase.dll

Filesize
992KB

MD5
0e0bac3d1dcc1833eae4e3e4cf83c4ef

SHA1
4189f4459c54e69c6d3155a82524bda7549a75a6

SHA256
8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

SHA512
a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd

Download Submit
memory/1636-166-0x0000000000AE0000-0x0000000000B14000-memory.dmp

Filesize
208KB

Download
memory/1664-92-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/1664-91-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/2116-99-0x0000000001E80000-0x0000000001E88000-memory.dmp

Filesize
32KB

Download
memory/2116-98-0x000000001B5E0000-0x000000001B8C2000-memory.dmp

Filesize
2.9MB

Download
memory/2156-0-0x000007FEF5783000-0x000007FEF5784000-memory.dmp

Filesize
4KB

Download
memory/2156-1-0x0000000001160000-0x0000000001A96000-memory.dmp

Filesize
9.2MB

Download
memory/2760-86-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-72-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-161-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-162-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-7-0x00000000002B0000-0x00000000002E4000-memory.dmp

Filesize
208KB

Download
memory/2760-174-0x000007FEF5780000-0x000007FEF616C000-memory.dmp

Filesize
9.9MB

Download