f0924aa3814edd9834cb39707a1d9c217b6c99a2229b1c9264e4c7f72ef8ac66

General

Target

17012025_0100_fifuc6.ps1
Size

182KB
MD5

531f7522fa2f658d3695b8827ce1a651
SHA1

084d8a701f8f285b88abe292c2b4dbb202b23406
SHA256

f0924aa3814edd9834cb39707a1d9c217b6c99a2229b1c9264e4c7f72ef8ac66
SHA512

6d2977b3c85d710cad721ba4f2ac9256eb1ef4416975f17a7159d1c9adbac0d1eb6bddd0985b896711bef2846c58128379afb322c2f75388bef3cc405984779b
SSDEEP

3072:xQvNklrvsQRAvUnjuw1cYpQAO8PJ3lPZA9iR3TxUK/zGc5+n:GvGlAAnCwhHPplP2943Tz/zX5w

Score

10^/10

collection discovery execution spyware stealer

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.cl-logistics.vn
Port:
587
Username:
[email protected]
Password:
logistics@123

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3748	x.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
7	checkip.dyndns.org
11	reallyfreegeoip.org
12	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3748 set thread context of 3504	3748	x.exe	85

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1644	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1644	powershell.exe
1644	powershell.exe
3504	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1644	powershell.exe
Token: SeDebugPrivilege	3504	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 3748	1644	powershell.exe	84
PID 1644 wrote to memory of 3748	1644	powershell.exe	84
PID 1644 wrote to memory of 3748	1644	powershell.exe	84
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85
PID 3748 wrote to memory of 3504	3748	x.exe	85

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\17012025_0100_fifuc6.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Users\Admin\AppData\Local\Temp\x.exe
  "C:\Users\Admin\AppData\Local\Temp\x.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3748
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:3504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ipkdfd0i.yfp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\x.exe

Filesize
136KB

MD5
fb9802a28361f8146263d7256008a8aa

SHA1
a6623bc42fd64c7f09127cfa990afbae4c90e5e7

SHA256
dcc1cd97606ab9dfcea2d2ffaedc16eaf51d48c22d1bbdec82d528d7153b7a90

SHA512
10a5bf50153d7329281aa383ca1115f30645a841861adbc2b9121c30d95b741daafb1f21774507e225a0c63de5150eb2c9e77289fe847414ebf45a4cfdd2e30c

Download Submit
memory/1644-0-0x00007FFEB3CD3000-0x00007FFEB3CD5000-memory.dmp

Filesize
8KB

Download
memory/1644-1-0x0000011ED49C0000-0x0000011ED49E2000-memory.dmp

Filesize
136KB

Download
memory/1644-11-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/1644-12-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/1644-26-0x00007FFEB3CD0000-0x00007FFEB4791000-memory.dmp

Filesize
10.8MB

Download
memory/3504-33-0x00000000058F0000-0x0000000005E94000-memory.dmp

Filesize
5.6MB

Download
memory/3504-30-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/3504-34-0x00000000053E0000-0x000000000547C000-memory.dmp

Filesize
624KB

Download
memory/3504-35-0x00000000065B0000-0x0000000006600000-memory.dmp

Filesize
320KB

Download
memory/3504-36-0x00000000068D0000-0x0000000006A92000-memory.dmp

Filesize
1.8MB

Download
memory/3504-37-0x00000000067E0000-0x0000000006872000-memory.dmp

Filesize
584KB

Download
memory/3504-38-0x00000000067B0000-0x00000000067BA000-memory.dmp

Filesize
40KB

Download
memory/3748-28-0x0000000000EF0000-0x0000000000F1A000-memory.dmp

Filesize
168KB

Download
memory/3748-29-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3748-32-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3748-27-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download

Analysis

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