blihanstealer | 592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2025, 02:35

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General

Target

592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe
Size

54KB
MD5

3f73b86c3d13547a48175f8c1abbfd30
SHA1

b03c87d9e5d56206643beaffbbe3daeede3c587b
SHA256

592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67
SHA512

00702eb9dcb14a27f4881c0624da2f33e825ab5666b5cf0f6a5cf379f1a09510c99fbfe12c6f0ec7a75c5fc7a926e098f7db87f7af2b7abb18c594d262b454aa
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbIKv8hIbHZhyhga:E1oEFlt6vghzwYu7vih9GueIh9j2IoH8

Score

10^/10

blihanstealer discovery persistence stealer trojan

Malware Config

Extracted

Family

blihanstealer

Mutex

pomdfghrt

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

Signatures

BlihanStealer
Blihan is a stealer written in C++.
trojan stealer blihanstealer
Blihanstealer family
blihanstealer

Deletes itself 1 IoCs

pid	Process
3304	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3304	microsofthelp.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-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3084 wrote to memory of 3304	3084	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe	89
PID 3084 wrote to memory of 3304	3084	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe	89
PID 3084 wrote to memory of 3304	3084	592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe	89

C:\Users\Admin\AppData\Local\Temp\592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe
"C:\Users\Admin\AppData\Local\Temp\592f54b40eaee38b24e3107802561e3c43fc0a0c46c7e499c48e1e6663f84f67.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3084
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3304

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
54KB

MD5
479b6b02aa14ed2b49c790b0b5973a61

SHA1
345afde57bebf00e70bcc713b75c4e7900f9b7c1

SHA256
acba55d04686051903fe2fbca3badf345043de94556d3736d6bd7daa26fa368a

SHA512
afc1e89ea249d73b63e6a8d40d7d82875c4a6d2bd73a9bea2831eef54b1ab3d8e7067cb779b2f6cb7f25b081b898daad69dc2e7beb6f55ee546a214c1a1f7589

Download Submit
memory/3084-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3084-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3304-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads