xworm | f4896bd4f3854ceb788300272a21a398edbf3f4ffa9450d74f350b150989db77

General

Target

hhhhhh.exe
Size

79KB
MD5

ee2974f54f01e6239325c4a59d2df8cc
SHA1

5dbdf4808e8435479131e02360c6a8ccdb5e555e
SHA256

f4896bd4f3854ceb788300272a21a398edbf3f4ffa9450d74f350b150989db77
SHA512

50e43425395396b98b87d832df1d0b0a0a79e8b27567c78521a0b0ee176552d36c2a390bdb13023010e80db5895043f607eb287462afcc286256f4fbde0d339c
SSDEEP

1536:sT8B6ZGyle6fKKJ36v74byvJrfYaUa63bON2jCehE:sT8B6kyRK4a4byvhQOUGuE

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

0.tcp.eu.ngrok.io:17774

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1560-0-0x0000000000190000-0x00000000001AA000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\XClient.exe	family_xworm

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

hhhhhh.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation hhhhhh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	hhhhhh.exe

Drops startup file 2 IoCs

Processes:

hhhhhh.exe

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

Executes dropped EXE 20 IoCs

Processes:

XClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exe

pid	process
3136	XClient.exe
4228	XClient.exe
536	XClient.exe
1732	XClient.exe
3472	XClient.exe
2784	XClient.exe
1908	XClient.exe
3228	XClient.exe
4560	XClient.exe
1652	XClient.exe
1728	XClient.exe
3384	XClient.exe
3832	XClient.exe
1260	XClient.exe
5104	XClient.exe
2448	XClient.exe
4884	XClient.exe
1108	XClient.exe
3024	XClient.exe
4996	XClient.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

hhhhhh.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	hhhhhh.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service
T1102

Processes:

flow ioc

5 0.tcp.eu.ngrok.io
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
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

Processes:

schtasks.exe

pid process

560 schtasks.exe

flow	ioc
5	0.tcp.eu.ngrok.io

flow	ioc
2	ip-api.com

pid	process
560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exehhhhhh.exe

pid	process
672	powershell.exe
672	powershell.exe
2040	powershell.exe
2040	powershell.exe
4572	powershell.exe
4572	powershell.exe
772	powershell.exe
772	powershell.exe
1560	hhhhhh.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

hhhhhh.exepowershell.exepowershell.exepowershell.exepowershell.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exeXClient.exe

description	pid	process
Token: SeDebugPrivilege	1560	hhhhhh.exe
Token: SeDebugPrivilege	672	powershell.exe
Token: SeDebugPrivilege	2040	powershell.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	772	powershell.exe
Token: SeDebugPrivilege	1560	hhhhhh.exe
Token: SeDebugPrivilege	3136	XClient.exe
Token: SeDebugPrivilege	4228	XClient.exe
Token: SeDebugPrivilege	536	XClient.exe
Token: SeDebugPrivilege	1732	XClient.exe
Token: SeDebugPrivilege	3472	XClient.exe
Token: SeDebugPrivilege	2784	XClient.exe
Token: SeDebugPrivilege	1908	XClient.exe
Token: SeDebugPrivilege	3228	XClient.exe
Token: SeDebugPrivilege	4560	XClient.exe
Token: SeDebugPrivilege	1652	XClient.exe
Token: SeDebugPrivilege	1728	XClient.exe
Token: SeDebugPrivilege	3384	XClient.exe
Token: SeDebugPrivilege	3832	XClient.exe
Token: SeDebugPrivilege	1260	XClient.exe
Token: SeDebugPrivilege	5104	XClient.exe
Token: SeDebugPrivilege	2448	XClient.exe
Token: SeDebugPrivilege	4884	XClient.exe
Token: SeDebugPrivilege	1108	XClient.exe
Token: SeDebugPrivilege	3024	XClient.exe
Token: SeDebugPrivilege	4996	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

hhhhhh.exe

pid process

1560 hhhhhh.exe

pid	process
1560	hhhhhh.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

hhhhhh.exe

description	pid	process	target process
PID 1560 wrote to memory of 672	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 672	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 2040	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 2040	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 4572	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 4572	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 772	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 772	1560	hhhhhh.exe	powershell.exe
PID 1560 wrote to memory of 560	1560	hhhhhh.exe	schtasks.exe
PID 1560 wrote to memory of 560	1560	hhhhhh.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\hhhhhh.exe
"C:\Users\Admin\AppData\Local\Temp\hhhhhh.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:1560

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\hhhhhh.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:672

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'hhhhhh.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2040

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\XClient.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4572

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
2⤵
- Creates scheduled task(s)
PID:560

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3136

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4228

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:536

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3472

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2784

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1908

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3228

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4560

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1652

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1728

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3384

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3832

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1260

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5104

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2448

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4884

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1108

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3024

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

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

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
51cf8df21f531e31f7740b4ec487a48a

SHA1
40c6a73b22d71625a62df109aefc92a5f9b9d13e

SHA256
263d9b98a897d1d66da4832af640c4bf5ab0ae91125ba12243453dfe714f3d0d

SHA512
57a85461f6ea96b26a8b53d3a9cca18543e4ddbe996e8f412fc4cf7cf6e9ffe558c96da7b322a42f18bef62020e65aee119bed6102f75e2f605df09b02ec6368

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

Filesize
944B

MD5
499298c8da8c8b6e630c889b60905388

SHA1
b3b519bebf9861bcdad6e2e6426c2e8a96fd8056

SHA256
2e5392338aeb35e2d1ca8c95cde814389a76808da33de106e860c5659c6823ca

SHA512
9da91784102b7fcd981d9cd84e787b4609d6c55f359df1bc8bf27759233a8be461552c370f13a21dd953c3f1254b15fe33b6ab89745cb36e7b382934487eb069

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hi4k5hnp.rin.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
79KB

MD5
ee2974f54f01e6239325c4a59d2df8cc

SHA1
5dbdf4808e8435479131e02360c6a8ccdb5e555e

SHA256
f4896bd4f3854ceb788300272a21a398edbf3f4ffa9450d74f350b150989db77

SHA512
50e43425395396b98b87d832df1d0b0a0a79e8b27567c78521a0b0ee176552d36c2a390bdb13023010e80db5895043f607eb287462afcc286256f4fbde0d339c

Download Submit
memory/672-5-0x000002239D8C0000-0x000002239D8D0000-memory.dmp

Filesize
64KB

Download
memory/672-6-0x0000022385250000-0x0000022385272000-memory.dmp

Filesize
136KB

Download
memory/672-4-0x000002239D8C0000-0x000002239D8D0000-memory.dmp

Filesize
64KB

Download
memory/672-3-0x00007FFDF4D50000-0x00007FFDF5811000-memory.dmp

Filesize
10.8MB

Download
memory/672-58-0x00007FFDF4D50000-0x00007FFDF5811000-memory.dmp

Filesize
10.8MB

Download
memory/1560-18-0x00007FFDF4D50000-0x00007FFDF5811000-memory.dmp

Filesize
10.8MB

Download
memory/1560-0-0x0000000000190000-0x00000000001AA000-memory.dmp

Filesize
104KB

Download
memory/1560-57-0x000000001AE90000-0x000000001AEA0000-memory.dmp

Filesize
64KB

Download
memory/1560-2-0x000000001AE90000-0x000000001AEA0000-memory.dmp

Filesize
64KB

Download
memory/1560-1-0x00007FFDF4D50000-0x00007FFDF5811000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads