xworm | e76432493aab33f8765d104d3bbd345b5e8eafafea96b49e462e26b688ba85cf

Analysis

max time kernel
59s
max time network
61s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
15-06-2024 05:09

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General

Target

Ystnmcdkpe.exe
Size

4.4MB
MD5

8b0d717feebe54e596342f8fd0dcb304
SHA1

5c2bdfaf250c6d1f1cdaeac8da1d0e2fd38a756e
SHA256

e76432493aab33f8765d104d3bbd345b5e8eafafea96b49e462e26b688ba85cf
SHA512

5c71f2e989164f3ac9aef87aa05e628b4d9f1df0bb868d9d09e2a058ca3f6b01f2357580e834f60d3d0ce284301ef7dd0663fe7ded7e777c9cfb39c5f7335d33
SSDEEP

24576:cLjLCNZ9fxjFe10SzsLfZJCF2Q05l+XWMOStU1w0JK7OgK7NHDOebaHdH3ckeubt:m

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

Mc35OpRlVfHYgK3s

Attributes

install_file
USB.exe
pastebin_url
https://pastebin.com/raw/EiiXCJbn

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1236-4902-0x0000000000400000-0x0000000000412000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

852 powershell.exe
1444 powershell.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

1 pastebin.com
3 pastebin.com
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

1 ip-api.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

Ystnmcdkpe.exe

description pid process target process

PID 1540 set thread context of 1236 1540 Ystnmcdkpe.exe Ystnmcdkpe.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Ystnmcdkpe.exepowershell.exepowershell.exeYstnmcdkpe.exe

pid process

1540 Ystnmcdkpe.exe
852 powershell.exe
852 powershell.exe
1444 powershell.exe
1444 powershell.exe
1236 Ystnmcdkpe.exe

pid	process
852	powershell.exe
1444	powershell.exe

flow	ioc
1	pastebin.com
3	pastebin.com

flow	ioc
1	ip-api.com

description	pid	process	target process
PID 1540 set thread context of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe

pid	process
1540	Ystnmcdkpe.exe
852	powershell.exe
852	powershell.exe
1444	powershell.exe
1444	powershell.exe
1236	Ystnmcdkpe.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Ystnmcdkpe.exeYstnmcdkpe.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1540	Ystnmcdkpe.exe
Token: SeDebugPrivilege	1540	Ystnmcdkpe.exe
Token: SeDebugPrivilege	1236	Ystnmcdkpe.exe
Token: SeDebugPrivilege	852	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1236	Ystnmcdkpe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Ystnmcdkpe.exe

pid process

1236 Ystnmcdkpe.exe

pid	process
1236	Ystnmcdkpe.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Ystnmcdkpe.exeYstnmcdkpe.exe

description	pid	process	target process
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1540 wrote to memory of 1236	1540	Ystnmcdkpe.exe	Ystnmcdkpe.exe
PID 1236 wrote to memory of 852	1236	Ystnmcdkpe.exe	powershell.exe
PID 1236 wrote to memory of 852	1236	Ystnmcdkpe.exe	powershell.exe
PID 1236 wrote to memory of 852	1236	Ystnmcdkpe.exe	powershell.exe
PID 1236 wrote to memory of 1444	1236	Ystnmcdkpe.exe	powershell.exe
PID 1236 wrote to memory of 1444	1236	Ystnmcdkpe.exe	powershell.exe
PID 1236 wrote to memory of 1444	1236	Ystnmcdkpe.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Ystnmcdkpe.exe
"C:\Users\Admin\AppData\Local\Temp\Ystnmcdkpe.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540

C:\Users\Admin\AppData\Local\Temp\Ystnmcdkpe.exe
"C:\Users\Admin\AppData\Local\Temp\Ystnmcdkpe.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Ystnmcdkpe.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:852

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Ystnmcdkpe.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1444

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

T1102

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Ystnmcdkpe.exe.log
Filesize
805B

MD5
9d0cacca373731660e8268a162d9d4ff

SHA1
a82111d00132cdf7ef46af5681601d55c6a0e17c

SHA256
95932f81206717ff86f0974ee37dc40d5d914f730f00a08344b4c1765d663394

SHA512
8c971ab501fc322b13f53b03325b2295e1eedb12b6d50a4225e6e3b4bf5128665b1a3d8b560a8b04f14bfa6f5cba41058e4f546139101fc303f3b8393f5ca485

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
ac4917a885cf6050b1a483e4bc4d2ea5

SHA1
b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

SHA256
e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

SHA512
092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
afe136a4141228176741e3771e0c1bfb

SHA1
eb28819b3ab290cd85008ac3673b2ce8c7eae70f

SHA256
a65405c3792f1bcf58abeacd7170a5b4580e3a9be2eab962cbc73249c0b77137

SHA512
ff32c42219327ca1ac1784e45cae65e27d3a27700559e6b544988474eb76d23dfe13297d7e4546209262b3a6047dc77c0b0fc6b6561b0d2eee6bab520b175f84

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_u5ecxblm.ths.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/852-4947-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/852-4925-0x000000006F730000-0x000000006F77C000-memory.dmp

Filesize
304KB

Download
memory/852-4906-0x0000000002A40000-0x0000000002A76000-memory.dmp

Filesize
216KB

Download
memory/852-4907-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/852-4908-0x0000000005460000-0x0000000005A8A000-memory.dmp

Filesize
6.2MB

Download
memory/852-4909-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/852-4944-0x0000000007880000-0x0000000007888000-memory.dmp

Filesize
32KB

Download
memory/852-4943-0x00000000078A0000-0x00000000078BA000-memory.dmp

Filesize
104KB

Download
memory/852-4942-0x0000000007790000-0x00000000077A5000-memory.dmp

Filesize
84KB

Download
memory/852-4941-0x0000000007780000-0x000000000778E000-memory.dmp

Filesize
56KB

Download
memory/852-4940-0x0000000007750000-0x0000000007761000-memory.dmp

Filesize
68KB

Download
memory/852-4939-0x00000000077E0000-0x0000000007876000-memory.dmp

Filesize
600KB

Download
memory/852-4938-0x00000000075B0000-0x00000000075BA000-memory.dmp

Filesize
40KB

Download
memory/852-4937-0x0000000007540000-0x000000000755A000-memory.dmp

Filesize
104KB

Download
memory/852-4936-0x0000000007B80000-0x00000000081FA000-memory.dmp

Filesize
6.5MB

Download
memory/852-4935-0x0000000007410000-0x00000000074B4000-memory.dmp

Filesize
656KB

Download
memory/852-4934-0x00000000071F0000-0x000000000720E000-memory.dmp

Filesize
120KB

Download
memory/852-4910-0x0000000005B80000-0x0000000005BA2000-memory.dmp

Filesize
136KB

Download
memory/852-4924-0x00000000071B0000-0x00000000071E4000-memory.dmp

Filesize
208KB

Download
memory/852-4923-0x0000000006220000-0x000000000626C000-memory.dmp

Filesize
304KB

Download
memory/852-4922-0x00000000061E0000-0x00000000061FE000-memory.dmp

Filesize
120KB

Download
memory/852-4920-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/852-4921-0x0000000005D70000-0x00000000060C7000-memory.dmp

Filesize
3.3MB

Download
memory/852-4911-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/1236-4971-0x0000000006DC0000-0x0000000006DCC000-memory.dmp

Filesize
48KB

Download
memory/1236-4901-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1236-4970-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1236-4969-0x0000000006C60000-0x0000000006C6A000-memory.dmp

Filesize
40KB

Download
memory/1236-4905-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1236-4904-0x00000000052F0000-0x0000000005356000-memory.dmp

Filesize
408KB

Download
memory/1236-4972-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1236-4903-0x0000000005250000-0x00000000052EC000-memory.dmp

Filesize
624KB

Download
memory/1236-4902-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1444-4959-0x000000006F730000-0x000000006F77C000-memory.dmp

Filesize
304KB

Download
memory/1444-4949-0x0000000005630000-0x0000000005987000-memory.dmp

Filesize
3.3MB

Download
memory/1540-54-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-36-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-4894-0x0000000006A30000-0x0000000006A7C000-memory.dmp

Filesize
304KB

Download
memory/1540-4895-0x0000000006AE0000-0x0000000006B34000-memory.dmp

Filesize
336KB

Download
memory/1540-4900-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1540-4892-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1540-4891-0x0000000074660000-0x0000000074E11000-memory.dmp

Filesize
7.7MB

Download
memory/1540-28-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-34-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-38-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-6-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-8-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-10-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-12-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-16-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-19-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-22-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-24-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-26-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-30-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-32-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-4893-0x00000000069D0000-0x0000000006A2C000-memory.dmp

Filesize
368KB

Download
memory/1540-42-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-46-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-0-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/1540-41-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-44-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-48-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-50-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-56-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-58-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-60-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-62-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-65-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-68-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-66-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-53-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-20-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-5-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-14-0x0000000006600000-0x000000000681B000-memory.dmp

Filesize
2.1MB

Download
memory/1540-4-0x00000000068C0000-0x0000000006952000-memory.dmp

Filesize
584KB

Download
memory/1540-3-0x0000000006DD0000-0x0000000007376000-memory.dmp

Filesize
5.6MB

Download
memory/1540-2-0x0000000006600000-0x0000000006820000-memory.dmp

Filesize
2.1MB

Download
memory/1540-1-0x0000000000480000-0x00000000008EE000-memory.dmp

Filesize
4.4MB

Download