blihanstealer | a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9

Analysis

max time kernel
119s
max time network
104s
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, 08:15

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General

Target

a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe
Size

46KB
MD5

5288759de565b951ff27d17a0cede9de
SHA1

9cb2180628183ae759ab56573f2edd05801fa364
SHA256

a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9
SHA512

ed4ee723b6f3e6d9deea38b1a3d1eafa227c44423c0deaafed2926a343e489560a1f81e94e03190685f4038a256831c87532d97513d9b80388cf891abcd55be0
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6It:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gh

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
4304	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4304	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-1-5-21-3975168204-1612096350-4002976354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.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	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 4304	2232	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe	86
PID 2232 wrote to memory of 4304	2232	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe	86
PID 2232 wrote to memory of 4304	2232	a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe	86

C:\Users\Admin\AppData\Local\Temp\a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe
"C:\Users\Admin\AppData\Local\Temp\a5ea9e9bc2d11a929fd9b5a987f081cac7650c67389d614304bdcf843fa71eb9.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- 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:4304

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
46KB

MD5
c3664415f60d47dde45e67622796261e

SHA1
c7308dfce14be1ea5e0cb6a5a4a9384e7c935bc7

SHA256
a79d539c4f2b03a06eba488e5fa15a34efdc47ac2a405e342d4a9cbfc2b1e6bc

SHA512
809dfb76cca02be3310088198be5097497b8858cc6ba984aeed559aa89b965212b6f9c6bb93acf41291f90b92e8a01ea471c4ebb2e8636d5b4e85a730d0be24e

Download Submit
memory/2232-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2232-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4304-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads