blihanstealer | 4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28

Analysis

max time kernel
119s
max time network
111s
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, 09:47

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General

Target

4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe
Size

75KB
MD5

081aad23a44cc0bb5c0247b496fdd900
SHA1

b51cf738240dcf8279535003f935faa8d5163d20
SHA256

4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28
SHA512

60e41b87345be035cca04597840f45255efc5778c24ccc65e01905dc17ffeaf0cb0d9603910eceb35932a1f49fc18f1e21adc562aa6c2519c50a15ed91cd66aa
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhl:E1oEFlt6vghzwYu7vih9GueIh9j2IoHk

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
5164	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
5164	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-1-5-21-814918696-1585701690-3140955116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.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	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 5164	1612	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe	85
PID 1612 wrote to memory of 5164	1612	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe	85
PID 1612 wrote to memory of 5164	1612	4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe	85

C:\Users\Admin\AppData\Local\Temp\4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe
"C:\Users\Admin\AppData\Local\Temp\4ad52e7c0f95c4aec3daa7cd73141b886b231a89b224861c431f9233a6b66d28.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1612
- 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:5164

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
75KB

MD5
b15ba8e2db47a76ed3dd07e289c49672

SHA1
7c9caa547a2128be8db0fd204a3017dbb7a54ddc

SHA256
5a50879aa8e345fbf2aea36a0737bec5891b82b9b857441713eda1cf8d2b3f53

SHA512
67a24f9f8b5e1c419431b1eaab991ab34bd9799fb8c0f6729d3445b39172ce9368813a8f2972dfecee92e3a67466abb71ee39e30aaca4135f1721a5b0717baf9

Download Submit
memory/1612-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5164-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads