xworm | d1e4f63805d566fc0ec48d49f78bca96b59a8605ae634cc28470052137f98ff8

General

Target

Xworm-V5.6/Xworm-V5.6/Xworm V5.6 Starter.exe
Size

7.7MB
MD5

bbf43a166ade7e2a0d2b930c41fb20a3
SHA1

d956dd742690aa25a59a84104cd3adbc40fcba78
SHA256

e948b08eb91c2dca67517126d71e5175e222598e6f1928d3ee78560b08e40b2b
SHA512

fcad5fc89da1d823a929cfebcdd19869605d646696f2399b2a84caa78e5a9854622e9d6b4184aba4ae080650513e1db01eb2412d995f87f18c4da90293fe523b
SSDEEP

196608:zKLCFU/jHq/puROyhxeyOC7+oiRkbtejBe5x:zmq/pkOYxehohbtB

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

manufacturer-rank.gl.at.ply.gg:60383

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\Xworm.exe	family_xworm
behavioral2/memory/4828-14-0x0000000000AB0000-0x0000000000AC8000-memory.dmp	family_xworm

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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

1136 powershell.exe
4948 powershell.exe
2336 powershell.exe
4648 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

Processes:

Xworm V5.6 Starter.exeXworm.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Xworm V5.6 Starter.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Xworm.exe

Drops startup file 2 IoCs

Processes:

Xworm.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System User.lnk	Xworm.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System User.lnk	Xworm.exe

Executes dropped EXE 3 IoCs

Processes:

Xworm.exeXworm V5.6.exeSystem User

pid process

4828 Xworm.exe
3652 Xworm V5.6.exe
2956 System User

pid	process
4828	Xworm.exe
3652	Xworm V5.6.exe
2956	System User

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Xworm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System User = "C:\\Users\\Admin\\AppData\\Roaming\\System User"	Xworm.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.

Processes:

flow ioc

15 ip-api.com
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

Processes:

schtasks.exe

pid process

1408 schtasks.exe

flow	ioc
15	ip-api.com

pid	process
1408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXworm.exe

pid	process
1136	powershell.exe
1136	powershell.exe
1136	powershell.exe
4948	powershell.exe
4948	powershell.exe
4948	powershell.exe
2336	powershell.exe
2336	powershell.exe
2336	powershell.exe
4648	powershell.exe
4648	powershell.exe
4648	powershell.exe
4828	Xworm.exe
4828	Xworm.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

Xworm.exepowershell.exepowershell.exepowershell.exepowershell.exeSystem User

description	pid	process
Token: SeDebugPrivilege	4828	Xworm.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	4948	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	4648	powershell.exe
Token: SeDebugPrivilege	4828	Xworm.exe
Token: SeDebugPrivilege	2956	System User

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Xworm.exe

pid process

4828 Xworm.exe

pid	process
4828	Xworm.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Xworm V5.6 Starter.exeXworm.exe

description	pid	process	target process
PID 5004 wrote to memory of 4828	5004	Xworm V5.6 Starter.exe	Xworm.exe
PID 5004 wrote to memory of 4828	5004	Xworm V5.6 Starter.exe	Xworm.exe
PID 5004 wrote to memory of 3652	5004	Xworm V5.6 Starter.exe	Xworm V5.6.exe
PID 5004 wrote to memory of 3652	5004	Xworm V5.6 Starter.exe	Xworm V5.6.exe
PID 4828 wrote to memory of 1136	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 1136	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 4948	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 4948	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 2336	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 2336	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 4648	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 4648	4828	Xworm.exe	powershell.exe
PID 4828 wrote to memory of 1408	4828	Xworm.exe	schtasks.exe
PID 4828 wrote to memory of 1408	4828	Xworm.exe	schtasks.exe

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\Xworm-V5.6\Xworm-V5.6\Xworm V5.6 Starter.exe
"C:\Users\Admin\AppData\Local\Temp\Xworm-V5.6\Xworm-V5.6\Xworm V5.6 Starter.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Users\Admin\AppData\Local\Temp\Xworm.exe
  "C:\Users\Admin\AppData\Local\Temp\Xworm.exe"
  2⤵
  - Checks computer location settings
  - 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:4828
- - 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\Xworm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1136
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Xworm.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4948
- - 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\System User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2336
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System User'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4648
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System User" /tr "C:\Users\Admin\AppData\Roaming\System User"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1408
- 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:3652

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3760,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=4092 /prefetch:8
1⤵
PID:3012

C:\Users\Admin\AppData\Roaming\System User
"C:\Users\Admin\AppData\Roaming\System User"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2956

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

Query Registry

2

T1012

System Information Discovery

2

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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
cc19bcff372d20459d3651ba8aef50e7

SHA1
3c6f1d4cdd647864fb97a16b1aefba67fcee11f7

SHA256
366473e774d8976c7fd4dc582220666fb61a4feb3f7c95e69b2a68ad9e446ec9

SHA512
a0e360ca4b6e874fd44612bf4b17f3722c0619da4f6bade12a62efadae88c2d33460114eaafa2bc3fb1cef5bea07e745b8bee24f15d0cacaff5f4a521b225080

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

Filesize
944B

MD5
96e3b86880fedd5afc001d108732a3e5

SHA1
8fc17b39d744a9590a6d5897012da5e6757439a3

SHA256
c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294

SHA512
909b1968f7204fa7029109b02232d8cc5438f6b4dc7c9044e4e47c59fcee538199b13029e36592b12ed573d48a308dd4822d2ced4129ab08d4111897e02be55d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe

Filesize
14.9MB

MD5
56ccb739926a725e78a7acf9af52c4bb

SHA1
5b01b90137871c3c8f0d04f510c4d56b23932cbc

SHA256
90f58865f265722ab007abb25074b3fc4916e927402552c6be17ef9afac96405

SHA512
2fee662bc4a1a36ce7328b23f991fa4a383b628839e403d6eb6a9533084b17699a6c939509867a86e803aafef2f9def98fa9305b576dad754aa7f599920c19a1

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

Filesize
76KB

MD5
2440671e67fb9e5087758e8c496d2c3a

SHA1
eac0d14a9866208ac6920a7a906eef761b3e0c2a

SHA256
e6c4447bc9d07a89b142f89e5011b2fa37eb77a243c9537ef992a1786a6044a3

SHA512
6bc35fd57775a3794b49c1e8576ba2e3b05f47a893b604bffeaf38cc01429dcccd5011c29dc80c88cf1fdaa9dd15c6cf168b885d532821939c68a603d7b64d82

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fjebihmz.tlb.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1136-32-0x00000255BDA10000-0x00000255BDA32000-memory.dmp

Filesize
136KB

Download
memory/3652-81-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/3652-29-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/3652-30-0x0000021DDACE0000-0x0000021DDBBC8000-memory.dmp

Filesize
14.9MB

Download
memory/4828-15-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/4828-31-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/4828-14-0x0000000000AB0000-0x0000000000AC8000-memory.dmp

Filesize
96KB

Download
memory/4828-82-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/4828-83-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/5004-28-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/5004-0-0x00007FFFAF3F3000-0x00007FFFAF3F5000-memory.dmp

Filesize
8KB

Download
memory/5004-10-0x00007FFFAF3F0000-0x00007FFFAFEB1000-memory.dmp

Filesize
10.8MB

Download
memory/5004-1-0x00000000000E0000-0x0000000000892000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads