blihanstealer | 79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba

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, 09:51

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General

Target

79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe
Size

70KB
MD5

870414b67dc6f49cc80ef1ce58e6ee65
SHA1

d841f0b5f84ad4d322917954c318ffdc2d75a1c0
SHA256

79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba
SHA512

be01d519ed316d4cabb5771b9eeff6ac00b2ca6448fcd7f51569566c2c82d1e659149af42c26bc73971b62a0a4850e4f6d680a8003930e87f125b2d68749bf11
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrha:E1oEFlt6vghzwYu7vih9GueIh9j2IoHh

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
1688	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1688	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-1-5-21-3218366390-1258052702-4267193707-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 1688	4248	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe	86
PID 4248 wrote to memory of 1688	4248	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe	86
PID 4248 wrote to memory of 1688	4248	79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe	86

C:\Users\Admin\AppData\Local\Temp\79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe
"C:\Users\Admin\AppData\Local\Temp\79869ef85442691661ff757a255b9f30da949cc0db27738b75efdb56bd3b6aba.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4248
- 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:1688

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
70KB

MD5
0c75b3836b525413f0f0194bef062f32

SHA1
7a8a532641f5dcba6702443d2a67fa9e8f7b72d6

SHA256
00f1a8f707c42aa8d85bd03eda3213c24fc5c72003a1d283fdc0554b14c12602

SHA512
2195b54ad873558832e6f835e6a18369d13aea27360bb42bb0fa28a8a61635aa9cb33244e8e225924d2285f769cc3c08dfc0d5c6d14e9e78b4050901605cc0f8

Download Submit
memory/1688-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4248-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4248-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads