xworm | 28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 00:45

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General

Target

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe
Size

37KB
MD5

a1e092a1d81eb20d8d5904b6cbab7160
SHA1

333fb684353cc1e8dfe6206cd3b9721c5574a05d
SHA256

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695
SHA512

883088a4ebb323698f50fcad2db43a88c96bc6379eabeb1b169b097ba8f4fa9b4d48390e5f24c5b3d3ca15b105121739987dcb5514aa58b441ae777930901537
SSDEEP

768:H5gTXwbLsAheofRhTUOe9tLFyc9PoO/hiDy0R:H5gTgUAhHKOSF39PoO/R0R

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

modern-educators.gl.at.ply.gg:23695

Mutex

8N14jzyvJ63EProc

Attributes

Install_directory
%Userprofile%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

behavioral2/memory/4472-1-0x0000000000320000-0x0000000000330000-memory.dmp family_xworm
C:\Users\Admin\Windows backup family_xworm
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

resource	yara_rule
behavioral2/memory/4472-1-0x0000000000320000-0x0000000000330000-memory.dmp	family_xworm
C:\Users\Admin\Windows backup	family_xworm

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

Processes:

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

Drops startup file 2 IoCs

Processes:

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows backup.lnk	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows backup.lnk	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

Executes dropped EXE 3 IoCs

Processes:

Windows backupWindows backupWindows backup

pid process

8 Windows backup
3168 Windows backup
2564 Windows backup

pid	process
8	Windows backup
3168	Windows backup
2564	Windows backup

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows backup = "C:\\Users\\Admin\\Windows backup"	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.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

14 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

896 schtasks.exe

flow	ioc
14	ip-api.com

pid	process
896	schtasks.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exeWindows backupWindows backupWindows backup

description	pid	process
Token: SeDebugPrivilege	4472	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe
Token: SeDebugPrivilege	4472	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe
Token: SeDebugPrivilege	8	Windows backup
Token: SeDebugPrivilege	3168	Windows backup
Token: SeDebugPrivilege	2564	Windows backup

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe

description	pid	process	target process
PID 4472 wrote to memory of 896	4472	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe	schtasks.exe
PID 4472 wrote to memory of 896	4472	28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.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\28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695_NeikiAnalytics.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4472

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows backup" /tr "C:\Users\Admin\Windows backup"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:896

C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:8

C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3168

C:\Users\Admin\Windows backup
"C:\Users\Admin\Windows backup"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2564

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows backup.log
Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\Windows backup
Filesize
37KB

MD5
a1e092a1d81eb20d8d5904b6cbab7160

SHA1
333fb684353cc1e8dfe6206cd3b9721c5574a05d

SHA256
28132ef9c24ea461015be0ca1a6f775d28e36c28d59df1f24a0527aa5c043695

SHA512
883088a4ebb323698f50fcad2db43a88c96bc6379eabeb1b169b097ba8f4fa9b4d48390e5f24c5b3d3ca15b105121739987dcb5514aa58b441ae777930901537

Download Submit
memory/8-11-0x00007FF81BD60000-0x00007FF81C821000-memory.dmp

Filesize
10.8MB

Download
memory/8-14-0x00007FF81BD60000-0x00007FF81C821000-memory.dmp

Filesize
10.8MB

Download
memory/4472-0-0x00007FF81BD63000-0x00007FF81BD65000-memory.dmp

Filesize
8KB

Download
memory/4472-1-0x0000000000320000-0x0000000000330000-memory.dmp

Filesize
64KB

Download
memory/4472-2-0x00007FF81BD60000-0x00007FF81C821000-memory.dmp

Filesize
10.8MB

Download
memory/4472-6-0x000000001AFC0000-0x000000001AFFB000-memory.dmp

Filesize
236KB

Download
memory/4472-8-0x00007FF81BD63000-0x00007FF81BD65000-memory.dmp

Filesize
8KB

Download
memory/4472-12-0x00007FF81BD60000-0x00007FF81C821000-memory.dmp

Filesize
10.8MB

Download