xworm | b37907a3276eeefa6ec2b4a9a40b51b212bec519250c9fbe45f30cb7070280de

Analysis

max time kernel
59s
max time network
32s
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 05:54

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General

Target

Zpeyoxgyc.exe
Size

4.4MB
MD5

7359f3a1c9b6374047ac9344100c92e7
SHA1

75abe16601f1e6d545f59e4a032a00fc6cc1f8a0
SHA256

b37907a3276eeefa6ec2b4a9a40b51b212bec519250c9fbe45f30cb7070280de
SHA512

03f574541d5c92ffe2275aa03c490ec2845055b7fda67cd6e6475ed850e446f6a346ac68e79fa0f0fa1c4dc402f9a4ebb215e7f2016fbeb640424283cccbbb7e
SSDEEP

24576:gNHkM9QO1ecERY2sQ0yfmJw7aQmm/WV9wuOwzdG/I/cU/UmISA8QyI1anQdMhdrh:c

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

7mmLIbwkAfOoLpqk

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2800-4903-0x0000000000400000-0x0000000000412000-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

2384 powershell.exe
4848 powershell.exe

pid	process
2384	powershell.exe
4848	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Zpeyoxgyc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-423582142-4191893794-1888535462-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ilvrcqkyi = "C:\\Users\\Admin\\AppData\\Roaming\\Ilvrcqkyi.exe"	Zpeyoxgyc.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

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

Processes:

Zpeyoxgyc.exe

description pid process target process

PID 3308 set thread context of 2800 3308 Zpeyoxgyc.exe Zpeyoxgyc.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:

Zpeyoxgyc.exepowershell.exepowershell.exeZpeyoxgyc.exe

pid process

3308 Zpeyoxgyc.exe
2384 powershell.exe
2384 powershell.exe
4848 powershell.exe
4848 powershell.exe
2800 Zpeyoxgyc.exe

flow	ioc
1	ip-api.com

description	pid	process	target process
PID 3308 set thread context of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe

pid	process
3308	Zpeyoxgyc.exe
2384	powershell.exe
2384	powershell.exe
4848	powershell.exe
4848	powershell.exe
2800	Zpeyoxgyc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Zpeyoxgyc.exeZpeyoxgyc.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3308	Zpeyoxgyc.exe
Token: SeDebugPrivilege	3308	Zpeyoxgyc.exe
Token: SeDebugPrivilege	2800	Zpeyoxgyc.exe
Token: SeDebugPrivilege	2384	powershell.exe
Token: SeDebugPrivilege	4848	powershell.exe
Token: SeDebugPrivilege	2800	Zpeyoxgyc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Zpeyoxgyc.exe

pid process

2800 Zpeyoxgyc.exe

pid	process
2800	Zpeyoxgyc.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Zpeyoxgyc.exeZpeyoxgyc.exe

description	pid	process	target process
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 3308 wrote to memory of 2800	3308	Zpeyoxgyc.exe	Zpeyoxgyc.exe
PID 2800 wrote to memory of 2384	2800	Zpeyoxgyc.exe	powershell.exe
PID 2800 wrote to memory of 2384	2800	Zpeyoxgyc.exe	powershell.exe
PID 2800 wrote to memory of 2384	2800	Zpeyoxgyc.exe	powershell.exe
PID 2800 wrote to memory of 4848	2800	Zpeyoxgyc.exe	powershell.exe
PID 2800 wrote to memory of 4848	2800	Zpeyoxgyc.exe	powershell.exe
PID 2800 wrote to memory of 4848	2800	Zpeyoxgyc.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Zpeyoxgyc.exe
"C:\Users\Admin\AppData\Local\Temp\Zpeyoxgyc.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3308

C:\Users\Admin\AppData\Local\Temp\Zpeyoxgyc.exe
"C:\Users\Admin\AppData\Local\Temp\Zpeyoxgyc.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2800

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\Zpeyoxgyc.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2384

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Zpeyoxgyc.exe'
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4848

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Zpeyoxgyc.exe.log
Filesize
897B

MD5
ae5902f6f08a0ccf65d2b2cf5de35baf

SHA1
fed0917857eab4faba95d0e6bc035527a73775fe

SHA256
4ca1e95c28fcf10cfb00e6dd1a952d85e4968614b2f455ee915eca088f09f09b

SHA512
9aef0ff0f00fefad8897ee8de23999aad33bfb243afb5884286aaf7e32a86386585e4fc35b426397f940b0df4426b49d463ab7dbc64f1e06c9ce319cb6385ee7

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

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

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

MD5
4b0175f5b270c19c66bee0fce809b8b9

SHA1
24ed681638a8784989b08e82188ff6814cb39c8e

SHA256
529d9f230ecbd22db1b4fcd061c6f352b28f45766b34c3185a5476b826a04e42

SHA512
b7f35527c682dbec3009975866d4b4bd771fb3c5a3e1457937f06d63ed23f46aa016fd7d2363976fa2012a8a0e0439caa47f69e0ebeeb842de7ed1df26f29251

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wvfnc5q4.yxp.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2384-4934-0x00000000074A0000-0x00000000074BE000-memory.dmp

Filesize
120KB

Download
memory/2384-4923-0x00000000065A0000-0x00000000065EC000-memory.dmp

Filesize
304KB

Download
memory/2384-4944-0x0000000007970000-0x0000000007978000-memory.dmp

Filesize
32KB

Download
memory/2384-4943-0x0000000007990000-0x00000000079AA000-memory.dmp

Filesize
104KB

Download
memory/2384-4942-0x0000000007880000-0x0000000007895000-memory.dmp

Filesize
84KB

Download
memory/2384-4941-0x0000000007870000-0x000000000787E000-memory.dmp

Filesize
56KB

Download
memory/2384-4940-0x0000000007840000-0x0000000007851000-memory.dmp

Filesize
68KB

Download
memory/2384-4939-0x00000000078D0000-0x0000000007966000-memory.dmp

Filesize
600KB

Download
memory/2384-4938-0x00000000076A0000-0x00000000076AA000-memory.dmp

Filesize
40KB

Download
memory/2384-4937-0x0000000007630000-0x000000000764A000-memory.dmp

Filesize
104KB

Download
memory/2384-4936-0x0000000007C80000-0x00000000082FA000-memory.dmp

Filesize
6.5MB

Download
memory/2384-4935-0x0000000007520000-0x00000000075C4000-memory.dmp

Filesize
656KB

Download
memory/2384-4906-0x0000000002AF0000-0x0000000002B26000-memory.dmp

Filesize
216KB

Download
memory/2384-4925-0x000000006FDB0000-0x000000006FDFC000-memory.dmp

Filesize
304KB

Download
memory/2384-4924-0x00000000074E0000-0x0000000007514000-memory.dmp

Filesize
208KB

Download
memory/2384-4947-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2384-4922-0x00000000062E0000-0x00000000062FE000-memory.dmp

Filesize
120KB

Download
memory/2384-4921-0x0000000005DD0000-0x0000000006127000-memory.dmp

Filesize
3.3MB

Download
memory/2384-4917-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2384-4909-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2384-4911-0x0000000005C70000-0x0000000005CD6000-memory.dmp

Filesize
408KB

Download
memory/2384-4910-0x0000000005450000-0x0000000005472000-memory.dmp

Filesize
136KB

Download
memory/2384-4907-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2384-4908-0x00000000054D0000-0x0000000005AFA000-memory.dmp

Filesize
6.2MB

Download
memory/2800-4969-0x00000000077C0000-0x00000000077CA000-memory.dmp

Filesize
40KB

Download
memory/2800-4902-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2800-4905-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2800-4904-0x0000000005D50000-0x0000000005DEC000-memory.dmp

Filesize
624KB

Download
memory/2800-4970-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/2800-4903-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3308-46-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-38-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-58-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-56-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-4891-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/3308-4892-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/3308-4893-0x0000000006C50000-0x0000000006CAC000-memory.dmp

Filesize
368KB

Download
memory/3308-4894-0x0000000006CB0000-0x0000000006CFC000-memory.dmp

Filesize
304KB

Download
memory/3308-4895-0x0000000006DE0000-0x0000000006E46000-memory.dmp

Filesize
408KB

Download
memory/3308-4896-0x00000000075C0000-0x0000000007614000-memory.dmp

Filesize
336KB

Download
memory/3308-4901-0x0000000074CE0000-0x0000000075491000-memory.dmp

Filesize
7.7MB

Download
memory/3308-62-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-64-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-66-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-68-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-5-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-20-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-6-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-8-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-10-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-12-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-18-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-22-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-60-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-40-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-0-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

Filesize
4KB

Download
memory/3308-24-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-26-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-28-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-30-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-32-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-34-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-36-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-42-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-44-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-50-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-52-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-54-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-48-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-16-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-14-0x0000000006800000-0x0000000006A1B000-memory.dmp

Filesize
2.1MB

Download
memory/3308-4-0x0000000006AC0000-0x0000000006B52000-memory.dmp

Filesize
584KB

Download
memory/3308-1-0x0000000000700000-0x0000000000B70000-memory.dmp

Filesize
4.4MB

Download
memory/3308-3-0x0000000006FD0000-0x0000000007576000-memory.dmp

Filesize
5.6MB

Download
memory/3308-2-0x0000000006800000-0x0000000006A22000-memory.dmp

Filesize
2.1MB

Download
memory/4848-4959-0x000000006FDB0000-0x000000006FDFC000-memory.dmp

Filesize
304KB

Download
memory/4848-4957-0x0000000005870000-0x0000000005BC7000-memory.dmp

Filesize
3.3MB

Download