xworm | 8996df7c25c4a8cd10c80971660852235429fa116ae188c188db8a750c579653

Analysis

max time kernel
148s
max time network
51s
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 09:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

XWormLoader5.2.exe
Size

328KB
MD5

7b421f9a8cbcf57135dfaaa03e138f83
SHA1

f7f9eaa8ac991cfba88cea00fa273e2b173ed785
SHA256

8996df7c25c4a8cd10c80971660852235429fa116ae188c188db8a750c579653
SHA512

6903cae013bd87bb6416ecc2db6e1c7462354a4387da50e48665fa20f68bb918d786d9a22690cfdaf6fb987a3539dfafb7daeb5da130b3cf4fa304dad10d3143
SSDEEP

6144:zE+IZP9d8mZrz+QftDS8lHAAJq0Q7u8mZrz+Q/zqm:1IZPH80n+QFDS8lgUbQq80n+Q/

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

promptylol-44968.portmap.io:44968

Attributes

Install_directory
%LocalAppData%
install_file
dllhost.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

C:\Users\Admin\AppData\Local\XWormLoader.exe family_xworm
behavioral2/memory/4808-24-0x0000000000090000-0x00000000000B8000-memory.dmp 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

5032 powershell.exe
1572 powershell.exe
4168 powershell.exe
4396 powershell.exe

resource	yara_rule
C:\Users\Admin\AppData\Local\XWormLoader.exe	family_xworm
behavioral2/memory/4808-24-0x0000000000090000-0x00000000000B8000-memory.dmp	family_xworm

pid	process
5032	powershell.exe
1572	powershell.exe
4168	powershell.exe
4396	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

XWormLoader.exeXWormLoader5.2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	XWormLoader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	XWormLoader5.2.exe

Drops startup file 2 IoCs

Processes:

XWormLoader.exe

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

Executes dropped EXE 4 IoCs

Processes:

XWormLoader 5.2 x64.exeXWormLoader.exedllhost.exedllhost.exe

pid process

4204 XWormLoader 5.2 x64.exe
4808 XWormLoader.exe
3644 dllhost.exe
1788 dllhost.exe

pid	process
4204	XWormLoader 5.2 x64.exe
4808	XWormLoader.exe
3644	dllhost.exe
1788	dllhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XWormLoader.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dllhost = "C:\\Users\\Admin\\AppData\\Local\\dllhost.exe"	XWormLoader.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

1012 schtasks.exe
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXWormLoader.exe

pid process

4396 powershell.exe
4396 powershell.exe
5032 powershell.exe
5032 powershell.exe
1572 powershell.exe
1572 powershell.exe
4168 powershell.exe
4168 powershell.exe
4808 XWormLoader.exe

flow	ioc
2	ip-api.com

pid	process
1012	schtasks.exe

pid	process
4396	powershell.exe
4396	powershell.exe
5032	powershell.exe
5032	powershell.exe
1572	powershell.exe
1572	powershell.exe
4168	powershell.exe
4168	powershell.exe
4808	XWormLoader.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

XWormLoader.exepowershell.exepowershell.exepowershell.exepowershell.exedllhost.exedllhost.exe

description	pid	process
Token: SeDebugPrivilege	4808	XWormLoader.exe
Token: SeDebugPrivilege	4396	powershell.exe
Token: SeDebugPrivilege	5032	powershell.exe
Token: SeDebugPrivilege	1572	powershell.exe
Token: SeDebugPrivilege	4168	powershell.exe
Token: SeDebugPrivilege	4808	XWormLoader.exe
Token: SeDebugPrivilege	3644	dllhost.exe
Token: SeDebugPrivilege	1788	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XWormLoader.exe

pid process

4808 XWormLoader.exe

pid	process
4808	XWormLoader.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

XWormLoader5.2.exeXWormLoader.exe

description	pid	process	target process
PID 5028 wrote to memory of 4204	5028	XWormLoader5.2.exe	XWormLoader 5.2 x64.exe
PID 5028 wrote to memory of 4204	5028	XWormLoader5.2.exe	XWormLoader 5.2 x64.exe
PID 5028 wrote to memory of 4808	5028	XWormLoader5.2.exe	XWormLoader.exe
PID 5028 wrote to memory of 4808	5028	XWormLoader5.2.exe	XWormLoader.exe
PID 4808 wrote to memory of 4396	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 4396	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 5032	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 5032	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 1572	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 1572	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 4168	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 4168	4808	XWormLoader.exe	powershell.exe
PID 4808 wrote to memory of 1012	4808	XWormLoader.exe	schtasks.exe
PID 4808 wrote to memory of 1012	4808	XWormLoader.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\XWormLoader5.2.exe
"C:\Users\Admin\AppData\Local\Temp\XWormLoader5.2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5028

C:\Users\Admin\AppData\Local\XWormLoader 5.2 x64.exe
"C:\Users\Admin\AppData\Local\XWormLoader 5.2 x64.exe"
2⤵
- Executes dropped EXE
PID:4204

C:\Users\Admin\AppData\Local\XWormLoader.exe
"C:\Users\Admin\AppData\Local\XWormLoader.exe"
2⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4808

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\XWormLoader.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4396

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWormLoader.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5032

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\dllhost.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1572

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'dllhost.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4168

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "dllhost" /tr "C:\Users\Admin\AppData\Local\dllhost.exe"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:1012

C:\Users\Admin\AppData\Local\dllhost.exe
C:\Users\Admin\AppData\Local\dllhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3644

C:\Users\Admin\AppData\Local\dllhost.exe
C:\Users\Admin\AppData\Local\dllhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1788

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\dllhost.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
5cfe303e798d1cc6c1dab341e7265c15

SHA1
cd2834e05191a24e28a100f3f8114d5a7708dc7c

SHA256
c4d16552769ca1762f6867bce85589c645ac3dc490b650083d74f853f898cfab

SHA512
ef151bbe0033a2caf2d40aff74855a3f42c8171e05a11c8ce93c7039d9430482c43fe93d9164ee94839aff253cad774dbf619dde9a8af38773ca66d59ac3400e

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

MD5
10890cda4b6eab618e926c4118ab0647

SHA1
1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

SHA256
00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

SHA512
a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_soqmkmfg.yuk.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\XWormLoader 5.2 x64.exe
Filesize
109KB

MD5
e6a20535b636d6402164a8e2d871ef6d

SHA1
981cb1fd9361ca58f8985104e00132d1836a8736

SHA256
b461c985b53de4f6921d83925b3c2a62de3bbc5b8f9c02eecd27926f0197fae2

SHA512
35856a0268ed9d17b1570d5392833ed168c8515d73fac9f150cf63cc1aea61c096aa2e6b3c8e091a1058ba062f9333f6767e323a37dfb6f4fa7e508a2a138a30

Download Submit
C:\Users\Admin\AppData\Local\XWormLoader.exe
Filesize
140KB

MD5
13cc0069bf3c3b6167fe5254580c8714

SHA1
93edf81e9b6305a24b1c026978a6ef0af2bbc858

SHA256
4bac6c8269e3b746c8ab03c5327292ab0a6aa85ca080818521339ad4671ab2a4

SHA512
c285f1d6ecbdab5676805f49acec48be4b860296bae5ed44aca7c70384e08d7e0d4039210b341c2e9e65000f4e278461d22e6b4b964321350083e737d766c60e

Download Submit
memory/4204-29-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/4204-28-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/4204-27-0x0000000000B00000-0x0000000000B20000-memory.dmp

Filesize
128KB

Download
memory/4396-31-0x0000020D758D0000-0x0000020D758F2000-memory.dmp

Filesize
136KB

Download
memory/4808-30-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/4808-25-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/4808-24-0x0000000000090000-0x00000000000B8000-memory.dmp

Filesize
160KB

Download
memory/4808-81-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/4808-82-0x00007FFFE9CF0000-0x00007FFFEA7B1000-memory.dmp

Filesize
10.8MB

Download
memory/5028-0-0x00007FFFE9CF3000-0x00007FFFE9CF5000-memory.dmp

Filesize
8KB

Download
memory/5028-1-0x0000000000870000-0x00000000008C8000-memory.dmp

Filesize
352KB

Download