hijackloader | 92a218b4b6cbd696cb07698a2da0fc8578ad1f966a88509e25db827fe85a2920

General

Target

updateload.bin.exe
Size

3.1MB
MD5

4c5dbf388f5de761e45f268186f8be27
SHA1

918b198ad13af4c52b4518ff22a2a032e86e3679
SHA256

92a218b4b6cbd696cb07698a2da0fc8578ad1f966a88509e25db827fe85a2920
SHA512

4f9331107ec172cd3caa767a2af3e9f18e85ccf71b725be4bfbb0e83dcaf40d8e10581531a709227a6135efae8531a9d55bc22b32c0a8eaafdd8adc4c736dc94
SSDEEP

49152:DUvC/MTQYNsWy9aRV0NmZfClF/sKkTUD6CsRBJgsoDDeA:IjTQYNsWy6FClFUKkwWRBSpDDeA

Score

10^/10

hijackloader stealc meowsterioland4 credential_access discovery loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland4

C2

http://45.152.112.131

Attributes

url_path
/8ee66a3c8f19e4b5.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/3112-0-0x00000000009C0000-0x0000000000CD2000-memory.dmp	family_hijackloader

HijackLoader
HijackLoader is a multistage loader first seen in 2023.
loader hijackloader
Stealc
Stealc is an infostealer written in C++.
stealer stealc
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
4444	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1588	explorer.exe
1588	explorer.exe

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3112-0-0x00000000009C0000-0x0000000000CD2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3112 set thread context of 4444	3112	updateload.bin.exe	86

System Location Discovery: System Language Discovery 1 TTPs 5 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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	updateload.bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4344	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3112	updateload.bin.exe
3112	updateload.bin.exe
4444	cmd.exe
4444	cmd.exe
1588	explorer.exe
1588	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3112	updateload.bin.exe
4444	cmd.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3112	updateload.bin.exe
3112	updateload.bin.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3112	updateload.bin.exe
3112	updateload.bin.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 4444	3112	updateload.bin.exe	86
PID 3112 wrote to memory of 4444	3112	updateload.bin.exe	86
PID 3112 wrote to memory of 4444	3112	updateload.bin.exe	86
PID 3112 wrote to memory of 4444	3112	updateload.bin.exe	86
PID 4444 wrote to memory of 1588	4444	cmd.exe	88
PID 4444 wrote to memory of 1588	4444	cmd.exe	88
PID 4444 wrote to memory of 1588	4444	cmd.exe	88
PID 4444 wrote to memory of 1588	4444	cmd.exe	88
PID 1588 wrote to memory of 2192	1588	explorer.exe	92
PID 1588 wrote to memory of 2192	1588	explorer.exe	92
PID 1588 wrote to memory of 2192	1588	explorer.exe	92
PID 2192 wrote to memory of 4344	2192	cmd.exe	94
PID 2192 wrote to memory of 4344	2192	cmd.exe	94
PID 2192 wrote to memory of 4344	2192	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\updateload.bin.exe
"C:\Users\Admin\AppData\Local\Temp\updateload.bin.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4444
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1588
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\SysWOW64\explorer.exe" & del "C:\ProgramData\*.dll"" & exit
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2192
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        System Location Discovery: System Language Discovery
        Delays execution with timeout.exe
        
        PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Temp\16640c21

Filesize
904KB

MD5
d4b68410c529fff5b1ad7686941e5554

SHA1
f36e483a6574335a9cb6ee3d7226ceef4e0e50b1

SHA256
7892224c8885cfabb161c5e5dfefdaefbda5f29a209c69ee6f040e3e67e59009

SHA512
c92279230096f6bccd30b29bb8d60c18028ac79dc9bcffb2b11270ffe224f06908a35b7e482c0ac65b9ad63349cc0eaf10d444cda31ce24a9d8d7581e241ee5a

Download Submit
memory/1588-14-0x0000000000ED0000-0x0000000001114000-memory.dmp

Filesize
2.3MB

Download
memory/1588-92-0x0000000000ED0000-0x0000000001114000-memory.dmp

Filesize
2.3MB

Download
memory/1588-90-0x0000000000ED0000-0x0000000001114000-memory.dmp

Filesize
2.3MB

Download
memory/1588-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/1588-19-0x0000000000550000-0x0000000000983000-memory.dmp

Filesize
4.2MB

Download
memory/1588-18-0x0000000000633000-0x000000000063B000-memory.dmp

Filesize
32KB

Download
memory/1588-16-0x0000000000ED0000-0x0000000001114000-memory.dmp

Filesize
2.3MB

Download
memory/1588-15-0x00007FFF6A790000-0x00007FFF6A985000-memory.dmp

Filesize
2.0MB

Download
memory/3112-5-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/3112-0-0x00000000009C0000-0x0000000000CD2000-memory.dmp

Filesize
3.1MB

Download
memory/3112-4-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/3112-3-0x0000000073C63000-0x0000000073C65000-memory.dmp

Filesize
8KB

Download
memory/3112-2-0x00007FFF6A790000-0x00007FFF6A985000-memory.dmp

Filesize
2.0MB

Download
memory/3112-1-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/4444-13-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/4444-10-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/4444-11-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download
memory/4444-9-0x00007FFF6A790000-0x00007FFF6A985000-memory.dmp

Filesize
2.0MB

Download
memory/4444-8-0x0000000073C50000-0x0000000073DCB000-memory.dmp

Filesize
1.5MB

Download

Analysis

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