xworm | 401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

General

Target

401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Size

79KB
MD5

f1e41321cd4394089842e5121d5cb649
SHA1

96e3aff8a0eecda81e8d0b10323a1680b1136387
SHA256

401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad
SHA512

243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3
SSDEEP

1536:IU8SlJ3N8bspa09DfVtHbRZuBDXcCK68u2yOeYdXGnE1B:cSlJrDHbRZMDXUmO9Wn6B

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

listing-trackbacks.gl.at.ply.gg:8848

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2904-1-0x0000000000EE0000-0x0000000000EFA000-memory.dmp	family_xworm
behavioral2/files/0x0009000000022abb-59.dat	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

pid	Process
1756	powershell.exe
2648	powershell.exe
4468	powershell.exe
1036	powershell.exe

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Executes dropped EXE 2 IoCs

pid	Process
2396	TLauncher
3212	TLauncher

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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TLauncher = "C:\\Users\\Admin\\AppData\\Roaming\\TLauncher"	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.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
3	ip-api.com

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4948	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1756	powershell.exe
1756	powershell.exe
2648	powershell.exe
2648	powershell.exe
4468	powershell.exe
4468	powershell.exe
1036	powershell.exe
1036	powershell.exe
2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	4468	powershell.exe
Token: SeDebugPrivilege	1036	powershell.exe
Token: SeDebugPrivilege	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Token: SeDebugPrivilege	2396	TLauncher
Token: SeDebugPrivilege	3212	TLauncher

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 1756	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	87
PID 2904 wrote to memory of 1756	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	87
PID 2904 wrote to memory of 2648	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	89
PID 2904 wrote to memory of 2648	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	89
PID 2904 wrote to memory of 4468	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	91
PID 2904 wrote to memory of 4468	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	91
PID 2904 wrote to memory of 1036	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	93
PID 2904 wrote to memory of 1036	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	93
PID 2904 wrote to memory of 4948	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	95
PID 2904 wrote to memory of 4948	2904	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	95

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\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
"C:\Users\Admin\AppData\Local\Temp\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2904
- 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\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2648
- 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\TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4468
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1036
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TLauncher" /tr "C:\Users\Admin\AppData\Roaming\TLauncher"
  2⤵
  - Creates scheduled task(s)
  PID:4948

C:\Users\Admin\AppData\Roaming\TLauncher
C:\Users\Admin\AppData\Roaming\TLauncher
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2396

C:\Users\Admin\AppData\Roaming\TLauncher
C:\Users\Admin\AppData\Roaming\TLauncher
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\TLauncher.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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
944B

MD5
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
0256bd284691ed0fc502ef3c8a7e58dc

SHA1
dcdf69dc8ca8bf068f65d20ef1563bbe283e2413

SHA256
e2fb83098e114084f51ed7187334f861ce670051046c39f338928296ca9a49cf

SHA512
c5b29c1e0a15ddb68b0579848066774fa7cdc6f35087bbbf47c05a5c0dcc1eb3e61b2ddadfbded8c1ed9820e637596a9f08a97db8fb18000d168e6b159060c42

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

Filesize
944B

MD5
9c740b7699e2363ac4ecdf496520ca35

SHA1
aa8691a8c56500d82c5fc8c35209bc6fe50ab1d9

SHA256
be96c91b62ba9ba7072ab89e66543328c9e4395150f9dbe8067332d94a3ecc61

SHA512
8885683f96353582eb871209e766e7eba1a72a2837ce27ea298b7b5b169621d1fa3fce25346b6bfd258b52642644234da9559d4e765a2023a5a5fc1f544cc7af

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bowa3t0j.hql.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\TLauncher

Filesize
79KB

MD5
f1e41321cd4394089842e5121d5cb649

SHA1
96e3aff8a0eecda81e8d0b10323a1680b1136387

SHA256
401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

SHA512
243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3

Download Submit
memory/1756-18-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1756-17-0x000001D17B2E0000-0x000001D17B4FC000-memory.dmp

Filesize
2.1MB

Download
memory/1756-10-0x000001D17B2B0000-0x000001D17B2D2000-memory.dmp

Filesize
136KB

Download
memory/1756-4-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/1756-3-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/2904-1-0x0000000000EE0000-0x0000000000EFA000-memory.dmp

Filesize
104KB

Download
memory/2904-57-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/2904-2-0x00007FFC0ADF0000-0x00007FFC0B8B1000-memory.dmp

Filesize
10.8MB

Download
memory/2904-0-0x00007FFC0ADF3000-0x00007FFC0ADF5000-memory.dmp

Filesize
8KB

Download
memory/4468-42-0x000001EEF8280000-0x000001EEF849C000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads