blihanstealer | b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7

Analysis

max time kernel
120s
max time network
105s
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, 09:31

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General

Target

b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe
Size

72KB
MD5

44267ad1b3da7ffb6968ec54e0cee730
SHA1

bc7a885074caf707f9c5fca007a1784ffe9a3f83
SHA256

b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7
SHA512

36026847947674dea139579e23f89cb5b6257739e5468e912758eb05ebdab56a09f8d4597d62e3d578d551083dabcaf2bc803d0decdf723158bf50c63d4f007b
SSDEEP

1536:NAo0Tj2d6rnJwwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IbIKvchQhehJ:NAoglOwvl4ulkP6vghzwYu7vih9GueIz

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
1372	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1372	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-1-5-21-3920955164-3782810283-1225622749-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.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	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 1372	1600	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe	86
PID 1600 wrote to memory of 1372	1600	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe	86
PID 1600 wrote to memory of 1372	1600	b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe	86

C:\Users\Admin\AppData\Local\Temp\b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe
"C:\Users\Admin\AppData\Local\Temp\b736007774729826d5c79491b77f39702b5be640e73a7d1ee0ecaae9babe3bd7N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1600
- 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:1372

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
d028f6939223a7dbd96a232cbf9f9032

SHA1
b7e08b792450d6eae692bd9610036c051f561630

SHA256
f7bac9b8cb19e77883c2e6c40e73d915b33a14e569e6b98d45e3a3fa4657a9b8

SHA512
bd4075ac560c57e6920785fa75a98f9371065268b5cf85a32504a67a7dc2aa02c7508b28d48ea157a65480a6c8053694363e454b87cbe72237ba1f5427317db5

Download Submit
memory/1372-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1600-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1600-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads