xworm | 2a5b3f3025225f3813f33d2f9155de9452ce8bfd93a83b6fd6f3caaff4d230cb

Analysis

max time kernel
1793s
max time network
1151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25/08/2024, 08:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

123.exe
Size

200KB
MD5

ac95817b187d1a14c1810c6d2ab15be0
SHA1

cb4f025c574958b0a9b38f572e431b5a15dfc3bd
SHA256

2a5b3f3025225f3813f33d2f9155de9452ce8bfd93a83b6fd6f3caaff4d230cb
SHA512

871e8df2faf16fd46e28edcc2a79e064c36d6649f0727659846c13ed3a13013e079ae29f95a3416ccf4f07613df83b005d3c013e025d2d43d7fc5d88c7384e1f
SSDEEP

3072:kvlNPJhQyFb5IO/EcsjsgbcUieNJZKoPC5+Le:kvvQwbarwK3ZKoa

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4784-1-0x00000000008F0000-0x0000000000928000-memory.dmp	family_xworm
behavioral2/files/0x0007000000022b25-58.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
1692	powershell.exe
4608	powershell.exe
2232	powershell.exe
2132	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	123.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hosts.lnk	123.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hosts.lnk	123.exe

Executes dropped EXE 30 IoCs

pid	Process
4700	hosts
1848	hosts
3328	hosts
2220	hosts
4644	hosts
2184	hosts
4868	hosts
392	hosts
3524	hosts
548	hosts
2580	hosts
2284	hosts
1632	hosts
264	hosts
3096	hosts
1444	hosts
1684	hosts
2684	hosts
1564	hosts
1364	hosts
4812	hosts
4468	hosts
3844	hosts
1508	hosts
2964	hosts
3680	hosts
768	hosts
3460	hosts
4824	hosts
728	hosts

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hosts = "C:\\Users\\Admin\\hosts"	123.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
23	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

pid	Process
2188	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1692	powershell.exe
1692	powershell.exe
4608	powershell.exe
4608	powershell.exe
2232	powershell.exe
2232	powershell.exe
2132	powershell.exe
2132	powershell.exe
4784	123.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	123.exe
Token: SeDebugPrivilege	1692	powershell.exe
Token: SeDebugPrivilege	4608	powershell.exe
Token: SeDebugPrivilege	2232	powershell.exe
Token: SeDebugPrivilege	2132	powershell.exe
Token: SeDebugPrivilege	4784	123.exe
Token: SeDebugPrivilege	4700	hosts
Token: SeDebugPrivilege	1848	hosts
Token: SeDebugPrivilege	3328	hosts
Token: SeDebugPrivilege	2220	hosts
Token: SeDebugPrivilege	4644	hosts
Token: SeDebugPrivilege	2184	hosts
Token: SeDebugPrivilege	4868	hosts
Token: SeDebugPrivilege	392	hosts
Token: SeDebugPrivilege	3524	hosts
Token: SeDebugPrivilege	548	hosts
Token: SeDebugPrivilege	2580	hosts
Token: SeDebugPrivilege	2284	hosts
Token: SeDebugPrivilege	1632	hosts
Token: SeDebugPrivilege	264	hosts
Token: SeDebugPrivilege	3096	hosts
Token: SeDebugPrivilege	1444	hosts
Token: SeDebugPrivilege	1684	hosts
Token: SeDebugPrivilege	2684	hosts
Token: SeDebugPrivilege	1564	hosts
Token: SeDebugPrivilege	1364	hosts
Token: SeDebugPrivilege	4812	hosts
Token: SeDebugPrivilege	4468	hosts
Token: SeDebugPrivilege	3844	hosts
Token: SeDebugPrivilege	1508	hosts
Token: SeDebugPrivilege	2964	hosts
Token: SeDebugPrivilege	3680	hosts
Token: SeDebugPrivilege	768	hosts
Token: SeDebugPrivilege	3460	hosts
Token: SeDebugPrivilege	4824	hosts
Token: SeDebugPrivilege	728	hosts

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4784	123.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4784 wrote to memory of 1692	4784	123.exe	92
PID 4784 wrote to memory of 1692	4784	123.exe	92
PID 4784 wrote to memory of 4608	4784	123.exe	94
PID 4784 wrote to memory of 4608	4784	123.exe	94
PID 4784 wrote to memory of 2232	4784	123.exe	96
PID 4784 wrote to memory of 2232	4784	123.exe	96
PID 4784 wrote to memory of 2132	4784	123.exe	98
PID 4784 wrote to memory of 2132	4784	123.exe	98
PID 4784 wrote to memory of 2188	4784	123.exe	100
PID 4784 wrote to memory of 2188	4784	123.exe	100

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\123.exe
"C:\Users\Admin\AppData\Local\Temp\123.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:4784
- 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\123.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '123.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4608
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\hosts'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2232
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'hosts'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2132
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "hosts" /tr "C:\Users\Admin\hosts"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2188

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4700

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1848

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3328

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2220

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4644

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2184

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4868

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:392

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3524

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:548

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2580

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2284

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1632

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:264

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3096

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1444

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1684

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1564

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1364

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4812

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4468

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3844

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1508

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2964

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3680

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:768

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3460

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4824

C:\Users\Admin\hosts
C:\Users\Admin\hosts
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:728

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\hosts.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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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\Temp\__PSScriptPolicyTest_xsbnyghn.3aq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\hosts

Filesize
200KB

MD5
ac95817b187d1a14c1810c6d2ab15be0

SHA1
cb4f025c574958b0a9b38f572e431b5a15dfc3bd

SHA256
2a5b3f3025225f3813f33d2f9155de9452ce8bfd93a83b6fd6f3caaff4d230cb

SHA512
871e8df2faf16fd46e28edcc2a79e064c36d6649f0727659846c13ed3a13013e079ae29f95a3416ccf4f07613df83b005d3c013e025d2d43d7fc5d88c7384e1f

Download Submit
memory/1692-4-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/1692-18-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/1692-15-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/1692-10-0x0000022CA76E0000-0x0000022CA7702000-memory.dmp

Filesize
136KB

Download
memory/1692-3-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4784-0-0x00007FF850B83000-0x00007FF850B85000-memory.dmp

Filesize
8KB

Download
memory/4784-56-0x00007FF850B83000-0x00007FF850B85000-memory.dmp

Filesize
8KB

Download
memory/4784-57-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4784-2-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/4784-1-0x00000000008F0000-0x0000000000928000-memory.dmp

Filesize
224KB

Download