xworm | 0ef75cb1e91b60d4b85acf17658cc069e47c9fa877d4e09103ec318e01b05952

General

Target

injection.exe
Size

261KB
MD5

c78e05dfbaa9546f231cd5ac573fd85b
SHA1

0d0fa2c72a59260218c17c08f65c565bc0253b75
SHA256

0ef75cb1e91b60d4b85acf17658cc069e47c9fa877d4e09103ec318e01b05952
SHA512

a8cbe52f5cc2f0758d9398eed59bc6b8f493c283433619f359cc078491830cb64cb0da576a0e43b8906e2aa335968ae0420891d40c506ea8491a5889be6e0d5e
SSDEEP

3072:BoGe4NJ1ixKuPW+xq9HucxtX/BOKk6gMEHBAnpK37nXv8g00ZQ7j3Pss74tyJhWV:bNTiUEq9HucBRDg18o43PdDNxgV5

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

trip-thesaurus.gl.at.ply.gg:16715

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3304-50-0x0000000001000000-0x0000000001018000-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 6 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1444	powershell.exe
1828	powershell.exe
3148	powershell.exe
4732	powershell.exe
4776	powershell.exe
2564	powershell.exe

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	injection.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	SearchApp.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3304	SearchApp.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SecurityHealthSystray = "C:\\Users\\Admin\\AppData\\Roaming\\SecurityHealthSystray"	SearchApp.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
22	ip-api.com

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.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
3224	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3304	SearchApp.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4776	powershell.exe
4776	powershell.exe
2564	powershell.exe
2564	powershell.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1444	powershell.exe
1444	powershell.exe
1828	powershell.exe
1828	powershell.exe
3148	powershell.exe
3148	powershell.exe
4732	powershell.exe
4732	powershell.exe
3304	SearchApp.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

description	pid	Process
Token: SeDebugPrivilege	4832	injection.exe
Token: SeBackupPrivilege	4104	vssvc.exe
Token: SeRestorePrivilege	4104	vssvc.exe
Token: SeAuditPrivilege	4104	vssvc.exe
Token: SeDebugPrivilege	4776	powershell.exe
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	1524	taskmgr.exe
Token: SeSystemProfilePrivilege	1524	taskmgr.exe
Token: SeCreateGlobalPrivilege	1524	taskmgr.exe
Token: SeDebugPrivilege	3304	SearchApp.exe
Token: 33	1524	taskmgr.exe
Token: SeIncBasePriorityPrivilege	1524	taskmgr.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1828	powershell.exe
Token: SeDebugPrivilege	3148	powershell.exe
Token: SeDebugPrivilege	4732	powershell.exe
Token: SeDebugPrivilege	3304	SearchApp.exe

Suspicious use of FindShellTrayWindow 33 IoCs

pid	Process
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe

Suspicious use of SendNotifyMessage 33 IoCs

pid	Process
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe
1524	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3304	SearchApp.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 4776	4832	injection.exe	86
PID 4832 wrote to memory of 4776	4832	injection.exe	86
PID 4832 wrote to memory of 2564	4832	injection.exe	88
PID 4832 wrote to memory of 2564	4832	injection.exe	88
PID 3304 wrote to memory of 1444	3304	SearchApp.exe	96
PID 3304 wrote to memory of 1444	3304	SearchApp.exe	96
PID 3304 wrote to memory of 1828	3304	SearchApp.exe	98
PID 3304 wrote to memory of 1828	3304	SearchApp.exe	98
PID 3304 wrote to memory of 3148	3304	SearchApp.exe	100
PID 3304 wrote to memory of 3148	3304	SearchApp.exe	100
PID 3304 wrote to memory of 4732	3304	SearchApp.exe	102
PID 3304 wrote to memory of 4732	3304	SearchApp.exe	102
PID 3304 wrote to memory of 3224	3304	SearchApp.exe	105
PID 3304 wrote to memory of 3224	3304	SearchApp.exe	105

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
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\injection.exe
"C:\Users\Admin\AppData\Local\Temp\injection.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4832
- 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\Roaming\SearchApp.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SearchApp.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4104

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1524

C:\Users\Admin\AppData\Roaming\SearchApp.exe
C:\Users\Admin\AppData\Roaming\SearchApp.exe
1⤵
- Checks computer location settings
- Drops startup file
- 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:3304
- 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\Roaming\SearchApp.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SearchApp.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1828
- 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\Roaming\SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3148
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SecurityHealthSystray'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4732
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "SecurityHealthSystray" /tr "C:\Users\Admin\AppData\Roaming\SecurityHealthSystray"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
ba169f4dcbbf147fe78ef0061a95e83b

SHA1
92a571a6eef49fff666e0f62a3545bcd1cdcda67

SHA256
5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

SHA512
8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

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

Filesize
944B

MD5
574ff64bf76afb475881c1f935f0eed4

SHA1
4d4f7d308cd3777d2cc6f4e26aa57f341c164565

SHA256
2a1b2a0074d16b55261614f5778395013537a482758e1674c6c64dda558410ce

SHA512
285677ef1e36e04cddfd00f4cd142da66790f5d587aba414287fea18a499af820c6bb18bb2d8f197a724e13fb812bd3c2421710c782c3f6b96b0dd5dd8c5316d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1jwn2gxy.wvb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\SearchApp.exe

Filesize
261KB

MD5
c78e05dfbaa9546f231cd5ac573fd85b

SHA1
0d0fa2c72a59260218c17c08f65c565bc0253b75

SHA256
0ef75cb1e91b60d4b85acf17658cc069e47c9fa877d4e09103ec318e01b05952

SHA512
a8cbe52f5cc2f0758d9398eed59bc6b8f493c283433619f359cc078491830cb64cb0da576a0e43b8906e2aa335968ae0420891d40c506ea8491a5889be6e0d5e

Download Submit
memory/1524-44-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-41-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-32-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-34-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-33-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-38-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-39-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-43-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-42-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/1524-40-0x000002576B010000-0x000002576B011000-memory.dmp

Filesize
4KB

Download
memory/3304-50-0x0000000001000000-0x0000000001018000-memory.dmp

Filesize
96KB

Download
memory/4776-17-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4776-14-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4776-13-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4776-12-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4776-2-0x00000249CAED0000-0x00000249CAEF2000-memory.dmp

Filesize
136KB

Download
memory/4832-0-0x00007FFB411C3000-0x00007FFB411C5000-memory.dmp

Filesize
8KB

Download
memory/4832-45-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4832-49-0x00007FFB411C0000-0x00007FFB41C81000-memory.dmp

Filesize
10.8MB

Download
memory/4832-1-0x00000000002D0000-0x0000000000318000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads