xworm | 13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565

Analysis

max time kernel
101s
max time network
54s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 00:37

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General

Target

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe
Size

41KB
MD5

d2076c20b95dbd946fa5806c61794470
SHA1

4f1577eb9d73a49e72be4b0fc19838f4dfbec5c9
SHA256

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565
SHA512

891b18095c5b1fc7b6197941084893efb36dfa28cf5df36901946fa30cbebc2601291eabc3d422cf513330c5f35149efffc6a6ce4d5d160c60215e1d694afc52
SSDEEP

768:ZmrJDweBDuOkScrbsN/x6H+VCAr43MQfJF5Pa9p+W6iOwhE3/+bF:Z0DwewicrbsN/YHKRrERF49IW6iOwS2J

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

christian-ward.gl.at.ply.gg:45738

Mutex

vIqRm5tGzdokLCvW

Attributes

Install_directory
%AppData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

behavioral2/memory/1388-1-0x0000000000660000-0x0000000000670000-memory.dmp family_xworm
C:\Users\Admin\AppData\Roaming\System.exe 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

1548 powershell.exe
4896 powershell.exe
3352 powershell.exe
4364 powershell.exe

resource	yara_rule
behavioral2/memory/1388-1-0x0000000000660000-0x0000000000670000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\System.exe	family_xworm

pid	process
1548	powershell.exe
4896	powershell.exe
3352	powershell.exe
4364	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

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

Drops startup file 2 IoCs

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

Executes dropped EXE 2 IoCs

Processes:

System.exeSystem.exe

pid process

1208 System.exe
1400 System.exe

pid	process
1208	System.exe
1400	System.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System.exe"	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_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

2 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

4788 schtasks.exe

flow	ioc
2	ip-api.com

pid	process
4788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

pid	process
4364	powershell.exe
4364	powershell.exe
1548	powershell.exe
1548	powershell.exe
4896	powershell.exe
4896	powershell.exe
3352	powershell.exe
3352	powershell.exe
1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exepowershell.exepowershell.exepowershell.exepowershell.exeSystem.exeSystem.exe

description	pid	process
Token: SeDebugPrivilege	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe
Token: SeDebugPrivilege	4364	powershell.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	4896	powershell.exe
Token: SeDebugPrivilege	3352	powershell.exe
Token: SeDebugPrivilege	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe
Token: SeDebugPrivilege	1208	System.exe
Token: SeDebugPrivilege	1400	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

pid process

1388 13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

pid	process
1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe

description	pid	process	target process
PID 1388 wrote to memory of 4364	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 4364	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 1548	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 1548	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 4896	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 4896	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 3352	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 3352	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	powershell.exe
PID 1388 wrote to memory of 4788	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe	schtasks.exe
PID 1388 wrote to memory of 4788	1388	13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_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\13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.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:1388

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\13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4364

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565_NeikiAnalytics.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1548

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.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4896

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3352

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System.exe"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4788

C:\Users\Admin\AppData\Roaming\System.exe
C:\Users\Admin\AppData\Roaming\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1208

C:\Users\Admin\AppData\Roaming\System.exe
C:\Users\Admin\AppData\Roaming\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1400

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\System.exe.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
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
04114c0529b116bf66d764ff6a5a8fe3

SHA1
0caeff17d1b2190f76c9bf539105f6c40c92bd14

SHA256
fd7092b4e273314186bad6ce71aa4cd69450736b6ec6cc746868997ff82a7532

SHA512
6a718c330824346606ef24f71cca6be0bfafc626b1d2b060b36e919ab07f3d6a345f56cace8a5a84ffbe2183976eb197842c9fd2f3e3b8c8dd307057d59d6f26

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3nxpyuvu.cpu.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\System.exe
Filesize
41KB

MD5
d2076c20b95dbd946fa5806c61794470

SHA1
4f1577eb9d73a49e72be4b0fc19838f4dfbec5c9

SHA256
13b4c3a42cf4887d7104d1a54735aa7e63bd11dd3db1b74321f51b8d8fac8565

SHA512
891b18095c5b1fc7b6197941084893efb36dfa28cf5df36901946fa30cbebc2601291eabc3d422cf513330c5f35149efffc6a6ce4d5d160c60215e1d694afc52

Download Submit
memory/1388-0-0x00007FFDAE393000-0x00007FFDAE395000-memory.dmp

Filesize
8KB

Download
memory/1388-2-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/1388-58-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/1388-1-0x0000000000660000-0x0000000000670000-memory.dmp

Filesize
64KB

Download
memory/4364-14-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/4364-15-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/4364-18-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/4364-19-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/4364-13-0x00007FFDAE390000-0x00007FFDAEE51000-memory.dmp

Filesize
10.8MB

Download
memory/4364-8-0x0000024851D90000-0x0000024851DB2000-memory.dmp

Filesize
136KB

Download