blihanstealer | 49eb0a973fc9e58c88061700d5f1f49821f1722548e54b93bcde752076a14e7b

Analysis

max time kernel
150s
max time network
128s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24/03/2025, 06:03

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General

Target

1 (238).exe
Size

71KB
MD5

5b72a7d3fa8344c83317c70b45f09660
SHA1

62a2503ac8e1096a20a0dd8956e6a89f00be86dc
SHA256

49eb0a973fc9e58c88061700d5f1f49821f1722548e54b93bcde752076a14e7b
SHA512

c6a1cf8d64b57c04aa892c1bfd4460b211adc52323cac2f693e62bbad09afe151928a7b962d3834f90cf326bbd47a69eb7b19b37518cd6f2637513c7fb4ea016
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh6:E1oEFlt6vghzwYu7vih9GueIh9j2IoH5

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
2796	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2796	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	1 (238).exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	1 (238).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	1 (238).exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2796	2948	1 (238).exe	30
PID 2948 wrote to memory of 2796	2948	1 (238).exe	30
PID 2948 wrote to memory of 2796	2948	1 (238).exe	30
PID 2948 wrote to memory of 2796	2948	1 (238).exe	30

C:\Users\Admin\AppData\Local\Temp\1 (238).exe
"C:\Users\Admin\AppData\Local\Temp\1 (238).exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2796

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
71KB

MD5
d7bb9bf02a6082e0a3a5375b1df3016d

SHA1
f394693b97751b4db6dd44acac82f0711af55e32

SHA256
4a1838d3ed9e8414ae3abd2dd77c34f2cd47be40be439babbafa93a27f6753ae

SHA512
0a9bdf485aba667bc480d3ced73d6856ef97adb8da58c8410766687af1b5f0610da6889a4257222f05b916e763a2bee078dd451ff75ed6f13e5f0af079dc3ba5

Download Submit
memory/2796-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2796-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2948-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2948-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads