3a23809b4f8c295cc07fb589966ef0c695d6df61c244e28127be54874ef38ec4

Resubmissions

01-05-2024 16:35

240501-t3ng6ade53 7

01-05-2024 11:16

240501-ndh89afg46 10

Analysis

max time kernel
1046s
max time network
1048s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
01-05-2024 16:35

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General

Target

XClient.exe
Size

1.3MB
MD5

0e7dbde65ff6eb526caf5a8517b3ef14
SHA1

326b1a54238ff6560dea85053bbea1c521dddd62
SHA256

3a23809b4f8c295cc07fb589966ef0c695d6df61c244e28127be54874ef38ec4
SHA512

f6fd535c17c5ea57eb9ee6a0f6705885b58b628801b3cd6e792da1518d5e1e490a007dbb9f1e72341ba2e60c635c2549762faed878fcdfac7633f3074dc55302
SSDEEP

6144:HCvSkBoOd7x9JR0hg5efTfnxPQ6EgjDcOKeSZhzjnnpDnC5QQfWMFH6n/8sJdaTp:HCvTo+GTfnxPQlgyymKJ162d0jLifU

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1230210488-3096403634-4129516247-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\ProgramData\\XClient.exe"	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.

flow	ioc
1	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3404	powershell.exe
3404	powershell.exe
1544	powershell.exe
1544	powershell.exe
4916	powershell.exe
4916	powershell.exe
1472	XClient.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1472	XClient.exe
Token: SeDebugPrivilege	3404	powershell.exe
Token: SeDebugPrivilege	1544	powershell.exe
Token: SeDebugPrivilege	4916	powershell.exe
Token: SeDebugPrivilege	1472	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1472	XClient.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 3404	1472	XClient.exe	78
PID 1472 wrote to memory of 3404	1472	XClient.exe	78
PID 1472 wrote to memory of 1544	1472	XClient.exe	80
PID 1472 wrote to memory of 1544	1472	XClient.exe	80
PID 1472 wrote to memory of 4916	1472	XClient.exe	82
PID 1472 wrote to memory of 4916	1472	XClient.exe	82

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- 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:1472
- 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'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3404
- 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:1544
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\XClient.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

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

Filesize
944B

MD5
e07eea85a8893f23fb814cf4b3ed974c

SHA1
8a8125b2890bbddbfc3531d0ee4393dbbf5936fe

SHA256
83387ce468d717a7b4ba238af2273da873b731a13cc35604f775a31fa0ac70ea

SHA512
9d4808d8a261005391388b85da79e4c5396bdded6e7e5ce3a3a23e7359d1aa1fb983b4324f97e0afec6e8ed9d898322ca258dd7cda654456dd7e84c9cbd509df

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fajksm0p.j2n.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1472-1-0x00000000001B0000-0x000000000030C000-memory.dmp

Filesize
1.4MB

Download
memory/1472-2-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/1472-46-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/1472-0-0x00007FFAD4073000-0x00007FFAD4075000-memory.dmp

Filesize
8KB

Download
memory/3404-13-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/3404-18-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/3404-15-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/3404-14-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download
memory/3404-6-0x0000023D0D650000-0x0000023D0D672000-memory.dmp

Filesize
136KB

Download
memory/3404-3-0x00007FFAD4070000-0x00007FFAD4B32000-memory.dmp

Filesize
10.8MB

Download