blihanstealer | 871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c

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
24/03/2025, 01:15

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General

Target

871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe
Size

46KB
MD5

4f16665f1e31827bc02b65e3142b60d7
SHA1

6000f8dfeb1ad5d2020ce664e7b97546a91a0f1b
SHA256

871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c
SHA512

2b962608cb61b83cc1b2cd2abb5d57dd6f1f7fa93148c805ea75b6d6615cd31162cc40cb86f210a768a6fcc53207e0c209f218b6acd84fe4d52140cde6d3289f
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Ik:e6q10k0EFjed6rqJ+6vghzwYu7vih9GY

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.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	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 1688	2108	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe	30
PID 2108 wrote to memory of 1688	2108	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe	30
PID 2108 wrote to memory of 1688	2108	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe	30
PID 2108 wrote to memory of 1688	2108	871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe	30

C:\Users\Admin\AppData\Local\Temp\871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe
"C:\Users\Admin\AppData\Local\Temp\871b6a4de6279ebb6423407024b11d457102599a03bb040efb530f5c48d7b31c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  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
46KB

MD5
2b91c76c4f4b9c69d9567268fe39f02f

SHA1
e31bfd02fd421d2f6918ec1b1856b37b8b091998

SHA256
e82b62477e60c07235d5227d82f28a3f6c42f943b590526dd48a26a3c6e59830

SHA512
d56676780eedfdece338887057f8e3cf305ed3a733bb369959eb35aa68d3c444ef36ca8f5bc123490c1c10b5dfe21de5681c689ad00551bd3b08dbd4099738a2

Download Submit
memory/1688-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1688-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2108-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2108-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads