xworm | 9f48bafc8116d691886054d64bd81dd84cf5114c84b72eb7ffcf8b9bac4341b4

General

Target

XBinderOutput.exe
Size

81KB
MD5

6a473a6fbeda2aa9557f5fb7eab5c9c6
SHA1

eb79bcf494c6cc5852b2439bc7ecdf04adf92b4e
SHA256

9f48bafc8116d691886054d64bd81dd84cf5114c84b72eb7ffcf8b9bac4341b4
SHA512

8a8fa406029ccd61907ad9cb18d9333c067eea2d81dbe079d658c8e3533e401027de95c1c77afe09b6d55695438e01a6dd677f14b94bb490bad51f959b3e5fbf
SSDEEP

1536:IzJVjzYoptrwvJBDrqiYQ9SZxlc9lQPykpl6VPM/qy:kyoptk/qcgc9+aQ6hu

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

C2

million-houston.gl.at.ply.gg:27705

Attributes

Install_directory
%AppData%
install_file
BloxstrapModded.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\XClient.exe	family_xworm
behavioral2/memory/4796-32-0x0000000000D80000-0x0000000000D9A000-memory.dmp	family_xworm

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

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

XBinderOutput.exeBloxstrapModded.exeXClient.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	XBinderOutput.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	BloxstrapModded.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

Processes:

XClient.exe

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

Executes dropped EXE 2 IoCs

Processes:

BloxstrapModded.exeXClient.exe

pid process

4504 BloxstrapModded.exe
4796 XClient.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

32 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

BloxstrapModded.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000_Classes\Local Settings BloxstrapModded.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2148 NOTEPAD.EXE

pid	process
4504	BloxstrapModded.exe
4796	XClient.exe

flow	ioc
32	ip-api.com

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000_Classes\Local Settings	BloxstrapModded.exe

pid	process
2148	NOTEPAD.EXE

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeXClient.exe

pid	process
4768	powershell.exe
4768	powershell.exe
4768	powershell.exe
2660	powershell.exe
2660	powershell.exe
2660	powershell.exe
4436	powershell.exe
4436	powershell.exe
4436	powershell.exe
4880	powershell.exe
4880	powershell.exe
4880	powershell.exe
4796	XClient.exe
4796	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

XClient.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4796	XClient.exe
Token: SeDebugPrivilege	4768	powershell.exe
Token: SeDebugPrivilege	2660	powershell.exe
Token: SeDebugPrivilege	4436	powershell.exe
Token: SeDebugPrivilege	4880	powershell.exe
Token: SeDebugPrivilege	4796	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XClient.exe

pid process

4796 XClient.exe

pid	process
4796	XClient.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

XBinderOutput.exeBloxstrapModded.exeXClient.exe

description	pid	process	target process
PID 3140 wrote to memory of 4504	3140	XBinderOutput.exe	BloxstrapModded.exe
PID 3140 wrote to memory of 4504	3140	XBinderOutput.exe	BloxstrapModded.exe
PID 4504 wrote to memory of 4796	4504	BloxstrapModded.exe	XClient.exe
PID 4504 wrote to memory of 4796	4504	BloxstrapModded.exe	XClient.exe
PID 4504 wrote to memory of 2148	4504	BloxstrapModded.exe	NOTEPAD.EXE
PID 4504 wrote to memory of 2148	4504	BloxstrapModded.exe	NOTEPAD.EXE
PID 4796 wrote to memory of 4768	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 4768	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 2660	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 2660	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 4436	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 4436	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 4880	4796	XClient.exe	powershell.exe
PID 4796 wrote to memory of 4880	4796	XClient.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe
"C:\Users\Admin\AppData\Local\Temp\XBinderOutput.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3140

C:\Users\Admin\AppData\Local\Temp\BloxstrapModded.exe
"C:\Users\Admin\AppData\Local\Temp\BloxstrapModded.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4504

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
3⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796

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\XClient.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4768

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2660

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\BloxstrapModded.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4436

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'BloxstrapModded.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4880

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\README.txt
3⤵
- Opens file in notepad (likely ransom note)
PID:2148

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

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

MD5
993af531f0b57e8128ec273731c3a8e2

SHA1
a42ea55876f4f390837dd2c95fb7ff2344b6e9e1

SHA256
fff934d70d813381536d272c5b8ac6ad70acd054267b13592da767c9bd1dda62

SHA512
bdf5970ff2ee314dc297fce5c0f44765e77acbf269cd9ad9e7448a391d5f80d66a0c5426f99bc3480851e8763413aa180b3b3b6b22ef0e86a365450cb8c334e4

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\Temp\BloxstrapModded.exe
Filesize
10.0MB

MD5
d4823d25c86c905b29ff3cd42127d5b3

SHA1
4380e4416b419f1bde9ee98c45b14fc7f29e8876

SHA256
71cc081cbe5e67b32b6b07ca8e63211610e6a52d477f8afc32521a0b1cfd1f45

SHA512
e9d12f0e1c4c2a434c6ec8a004d85141a6f6bc6a81179d7f9200d387a8f7031554615a39e33384694c2e8291ebab533c3c703d927498480078a87b6f49520152

Download Submit
C:\Users\Admin\AppData\Local\Temp\README.txt
Filesize
438B

MD5
659061a5689cae197b49f62be53bcf40

SHA1
6467f2252645e7ce87932aad37e24a6eed3fefeb

SHA256
0ca739b146beb166072cb199c8090f98140b88c5a7c251cf4ed730487507936c

SHA512
f5933100e6ce6a030cb7ee36213308cfa4b05859b903564c4d711e60433079dd8182922ea45f25ec8b8defca90c5aa56a94bce031e5aa0e35e11ae19fb858567

Download Submit
C:\Users\Admin\AppData\Local\Temp\XClient.exe
Filesize
80KB

MD5
cfeb71480542c9b6d6aec88f02e6d820

SHA1
4fcf90f5f8e16dcee2fa5ee1611394533f7ff740

SHA256
ebabe3ead25f28d4fe0a3ab1a592d7160065995da465ec549ebe8f27ba5eeee9

SHA512
e5d1a95fe948e295f0f7cc55f88464136e088b0c7f531a132eab76025885f2de93d101981fc3dedc4bd7ed271b58578bcab235fc9d2bedca6e209fb3f7d594bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iztraoev.urt.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2660-69-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/2660-66-0x0000026E042E0000-0x0000026E042F0000-memory.dmp

Filesize
64KB

Download
memory/2660-67-0x0000026E042E0000-0x0000026E042F0000-memory.dmp

Filesize
64KB

Download
memory/2660-64-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/3140-0-0x0000000000840000-0x000000000085A000-memory.dmp

Filesize
104KB

Download
memory/3140-15-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/3140-2-0x000000001B430000-0x000000001B440000-memory.dmp

Filesize
64KB

Download
memory/3140-1-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4436-79-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4436-81-0x00000224772D0000-0x00000224772E0000-memory.dmp

Filesize
64KB

Download
memory/4436-83-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4504-16-0x0000000000860000-0x0000000000874000-memory.dmp

Filesize
80KB

Download
memory/4504-35-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4504-17-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4504-19-0x000000001B580000-0x000000001B590000-memory.dmp

Filesize
64KB

Download
memory/4768-45-0x000002A3EB0E0000-0x000002A3EB0F0000-memory.dmp

Filesize
64KB

Download
memory/4768-38-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4768-53-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4768-50-0x000002A3EBBA0000-0x000002A3EBBC2000-memory.dmp

Filesize
136KB

Download
memory/4768-39-0x000002A3EB0E0000-0x000002A3EB0F0000-memory.dmp

Filesize
64KB

Download
memory/4796-103-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4796-32-0x0000000000D80000-0x0000000000D9A000-memory.dmp

Filesize
104KB

Download
memory/4796-37-0x000000001BBD0000-0x000000001BBE0000-memory.dmp

Filesize
64KB

Download
memory/4796-34-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4796-104-0x000000001BBD0000-0x000000001BBE0000-memory.dmp

Filesize
64KB

Download
memory/4880-95-0x000002A35F780000-0x000002A35F790000-memory.dmp

Filesize
64KB

Download
memory/4880-98-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4880-93-0x00007FF973090000-0x00007FF973B51000-memory.dmp

Filesize
10.8MB

Download
memory/4880-94-0x000002A35F780000-0x000002A35F790000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads