blihanstealer | c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaa

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
24/03/2025, 10:56

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General

Target

c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe
Size

65KB
MD5

732df40adf122f33282363cd48559ec0
SHA1

a54f9e642522f6c8a222b39896fccd0cea056662
SHA256

c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaa
SHA512

fc8fa321e6b48bea5df5fb7e2b6d1cb7a1d0e015e04bddf847a929793d232047f0974263ae3d2542c2eefb7223fa017c1179143bf0f27ec2eb9e0c5682204cb2
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhh:E1oEFlt6vghzwYu7vih9GueIh9j2IoHc

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
1720	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1720	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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.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	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1720	3016	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe	31
PID 3016 wrote to memory of 1720	3016	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe	31
PID 3016 wrote to memory of 1720	3016	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe	31
PID 3016 wrote to memory of 1720	3016	c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe	31

C:\Users\Admin\AppData\Local\Temp\c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe
"C:\Users\Admin\AppData\Local\Temp\c037901d22623de46653cf2e20c0337239042b031e626e184ccf8bd097a70eaaN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:1720

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
66KB

MD5
ac9107649b76f75e870684965ee39978

SHA1
67e59488301348d7ee649060ee59faa3dec66e42

SHA256
116dbeb17708586e8c51ddc0fac5f4ec57f3b2e6ad8985b23c6e3c7e5c25083f

SHA512
2222868200ca340516c76e76d6f5c9a9a8920b5a4561b8969362bfea7b716ad9d053055f085b7bb3a81742f0d0d1f3ba593cb451ee1dde58f8f68d2bd6edb1e1

Download Submit
memory/1720-10-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3016-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3016-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads