blihanstealer | 1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73cacc

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
23/03/2025, 21:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe
Size

72KB
MD5

9687847e6a56db0d21125e0fb35a04e0
SHA1

4696a1dbd104d6b95fe2877fa87828b1c8bb5ba8
SHA256

1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73cacc
SHA512

c7c2710c6b4dce8f0c162a4199b28a05354c449679070d27c5aa3261a74b5268bed1690312396980937e112f7ced158145f063b25cf578cedb06455648d68440
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhT:E1oEFlt6vghzwYu7vih9GueIh9j2IoH

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
5388	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
5388	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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.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	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 5388	2956	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe	86
PID 2956 wrote to memory of 5388	2956	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe	86
PID 2956 wrote to memory of 5388	2956	1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe	86

C:\Users\Admin\AppData\Local\Temp\1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe
"C:\Users\Admin\AppData\Local\Temp\1f9207b95d365add73f13fe1c257d0c1fa17a1b90c1a83cce351e57fea73caccN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2956
- 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:5388

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\microsofthelp.exe

Filesize
72KB

MD5
2045bb67f9bdf3698705fada34025d4c

SHA1
bb918094a666b24f56386bc479529a94bfa3528a

SHA256
a2a0016277e8c83da851dc0279e1cc583f8ede92be63250bdf0226bcf5cea0f8

SHA512
298db25704107828c996068f961c8ceada90a4c840d6c504d22e304a59b6c48f6c5fc5c17ff26bfd516ea0cff2a917067e8d4fb4bde06500ba2b9241f423264d

Download Submit
memory/2956-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2956-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5388-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5388-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads