Malware Analysis Report

2025-06-15 19:58

Sample ID 250227-gwdcdsxzdz
Target d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166
SHA256 d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166
Tags
blihanstealer discovery persistence stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166

Threat Level: Known bad

The file d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166 was found to be: Known bad.

Malicious Activity Summary

blihanstealer discovery persistence stealer trojan

Blihanstealer family

BlihanStealer

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-27 06:08

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-27 06:08

Reported

2025-02-27 06:11

Platform

win7-20250207-en

Max time kernel

149s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe"

Signatures

BlihanStealer

trojan stealer blihanstealer

Blihanstealer family

blihanstealer

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe

"C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/1952-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 18d238960726541091249b6a2248f038
SHA1 3060a697adebc019aa6ccc51b3ca6da9d0b41e2b
SHA256 aafbf3705ce706925f899f1e57446d8fcea3560b1d6df7ad84da67471c8f43e2
SHA512 67c3e3da594eba5f6a61fd4db1e5dd3066cc316277f550e1019d128dde4c4b5f7dfdc04a31c2e0f0e4404d21866c9c2f8c157aff439c8570cbe698bf39efa235

memory/1952-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2100-10-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-27 06:08

Reported

2025-02-27 06:11

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe"

Signatures

BlihanStealer

trojan stealer blihanstealer

Blihanstealer family

blihanstealer

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1294999112-580688058-1763548717-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe

"C:\Users\Admin\AppData\Local\Temp\d95f709f125b664e053458472ea81722f8ffacfa36a696f2a864bc1ec3b06166.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
GB 2.18.66.64:443 www.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/968-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 18d238960726541091249b6a2248f038
SHA1 3060a697adebc019aa6ccc51b3ca6da9d0b41e2b
SHA256 aafbf3705ce706925f899f1e57446d8fcea3560b1d6df7ad84da67471c8f43e2
SHA512 67c3e3da594eba5f6a61fd4db1e5dd3066cc316277f550e1019d128dde4c4b5f7dfdc04a31c2e0f0e4404d21866c9c2f8c157aff439c8570cbe698bf39efa235

memory/968-4-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2776-6-0x0000000000400000-0x000000000040E000-memory.dmp