blihanstealer | 86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6

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, 23:39

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General

Target

86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe
Size

67KB
MD5

a9626489fbfdef31504d64631292a570
SHA1

48ff65c429c88ba36ea5a8a5bf25bee58c245123
SHA256

86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6
SHA512

66cd088f5ed1eca560bd46fff27502fa000ef982e4b9b6da8dc95888e14f7c62075839f0837c9942974ff98c787fe10b2bdb30edff29b4dbd876188ba6ef5865
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhP: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
1240	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1240	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.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	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 1240	4896	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe	86
PID 4896 wrote to memory of 1240	4896	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe	86
PID 4896 wrote to memory of 1240	4896	86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe	86

C:\Users\Admin\AppData\Local\Temp\86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe
"C:\Users\Admin\AppData\Local\Temp\86b68b71444aa4a3fba09e34e5692fa40db6520df52bcbda07525c7efa085dc6N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4896
- 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:1240

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
68KB

MD5
2e10f613eac18fbaa4892e0c8251ac60

SHA1
455d1e9087be26ad5e22a51b39f87944410679bb

SHA256
cef56cbc9ad412ece70b5f6d701c9450189f1f993ec18ecd079d2ad368049c2e

SHA512
9f6f3ab63e611e83f551948c4d247f4f92c5d28a73eca024fe49dd8f41fdc32cb356d308bda1a67e8966b81e94bd065401fe3a70f3b1c2b1e8d2a22fbb4a75f2

Download Submit
memory/1240-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4896-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4896-4-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads