blihanstealer | 1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0

Analysis

max time kernel
119s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
24/03/2025, 02:14

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General

Target

1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe
Size

82KB
MD5

861f80acedcc9b02dadcd6ac74e042f1
SHA1

2ba497afc2f45ca3c93a9e2591e086eb81a34fed
SHA256

1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0
SHA512

20c4d76087af864b892bc3bd45802433d6ac206b18f036ad9fc0848ac8f0a2ec90ff9276de84b52b25de0eed704910870524406be7c0fe789c01c550c10a4372
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbIKv8hIbHZM:NAoglOwvl4ulkP6vghzwYu7vih9GueI1

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
3576	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3576	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.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	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 3576	1780	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe	90
PID 1780 wrote to memory of 3576	1780	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe	90
PID 1780 wrote to memory of 3576	1780	1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe	90

C:\Users\Admin\AppData\Local\Temp\1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe
"C:\Users\Admin\AppData\Local\Temp\1dd9075b65db4d68d47e76044315cd9e50597e075adb5891f0e6ed1d489353b0.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- 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:3576

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
82KB

MD5
006a9a3861635c323e33ccdb70555dce

SHA1
5993411808154b03666844ad3a87ea626dd8d409

SHA256
d888fd6b354908a6033894da932c783be846d77419bf8cc5bac3d4bc07053a81

SHA512
f55d85a9c008c31ad7332fb9cfd7e785a859e027c54bf638c5ef82c918934a88230ea7d3316c8814f8e0d766c8e81885937b66cfed037e15705cc5d6d5d128b4

Download Submit
memory/1780-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1780-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3576-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3576-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads