blihanstealer | 1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b

Analysis

max time kernel
119s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23/03/2025, 17:16

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General

Target

1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe
Size

96KB
MD5

c695938c1063ccc2dfc278d9db8a6c85
SHA1

abe5c473962c3676e2518c6225aa1e5edf3e67a9
SHA256

1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b
SHA512

4f2fcda1274982d21c7f4c3551a0fcb41cf74df1aef5fbdbed92b843b063ad89b4ebd8e00b6029db33f75ef2f55830dbb3ced3d28cb052ec9d3a43b22c2678db
SSDEEP

3072:NAoglOwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKr:eenk

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
2772	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	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"	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.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	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2772	2084	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe	31
PID 2084 wrote to memory of 2772	2084	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe	31
PID 2084 wrote to memory of 2772	2084	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe	31
PID 2084 wrote to memory of 2772	2084	1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe	31

C:\Users\Admin\AppData\Local\Temp\1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe
"C:\Users\Admin\AppData\Local\Temp\1d36fb0f7e8726105fa8b177b977679c88a2640d2fdbf7e5182493e0958ab18b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2772

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
96KB

MD5
95f401dd411ac4b116c05678af985fe9

SHA1
7c482e913d8d22a1c257ebf6da18e34ffbd2c2f5

SHA256
b34686b00c2e09a4478138c466f88de3d76560ab7c04c86b39dfce4e2c0c5036

SHA512
712400e9b95e5ac8f394a313357055688d35f788c7025daa4910764f9047321122c1a14e1bbc5010ed4dd6f988ea92e6ba98204cc3ac1947ddb67225a40fa387

Download Submit
memory/2084-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2084-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2772-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2772-10-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads