blihanstealer | 9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdc

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/03/2025, 19:42

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General

Target

9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe
Size

72KB
MD5

cee432a5d61fb0da625e0ed7d9680060
SHA1

039f8a92276233a531e9dcbea0d80fdd3367f9c8
SHA256

9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdc
SHA512

c0d583c74f50e170cf7c426ac0896b7fe6cafb78f909259b2bf8a92fdbe61a991c81bd228c1ddbd738cc8a4dcfbeb80ca9fbaa593efb2f33ad8a1cb2d225b73d
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1:E1oEFlt6vghzwYu7vih9GueIh9j2IoHq

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
1840	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1840	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 1840	2148	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe	31
PID 2148 wrote to memory of 1840	2148	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe	31
PID 2148 wrote to memory of 1840	2148	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe	31
PID 2148 wrote to memory of 1840	2148	9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe	31

C:\Users\Admin\AppData\Local\Temp\9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe
"C:\Users\Admin\AppData\Local\Temp\9ac15f78eb01614477f558e3f9bfa51c472a670b7fe7cc8ede22c57968a4bcdcN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:1840

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
72KB

MD5
1b881c8fedeeccab1612a503f5178378

SHA1
cf328d7da4a56a60d0fd573b1dc7e1730d189483

SHA256
6445cd007f164702ecb1b71426b3daca2eb5439c9a1025c690be22087dc820a6

SHA512
e26629e320025cea3598d6bb1aada1f80c4496642eb8deb054b83dc8158f669bda9a0e6f6eaf0786da6bde370eef90579e036ba0fabdf3d8b525703cf483bba8

Download Submit
memory/1840-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1840-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2148-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2148-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads