hijackloader | c85830fe306de069caee5218dc8c8741b718ee8d9dd1975c91ce67b053db578e

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 14:35

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General

Target
mediafile.exe
Size 3.7MB
Sample240919-rychzstgmk
SHA256 1bcc15d694501be5846d278419ca76e86904fb83c0e2337a8fb18627a32204b4
MD5 be895bd5ac158111518ec50d41fcb871
SHA1 25bf30d6d13f93c762b6f341bc629c29d9722326
SHA512 fc65be37f401b7f373a502e340a42fd07db22d16583de906067c73a04398b8d99ffdc8d427024168c34fca3da93c71273c9b3b46eab383f9e8ed809d59711716
SSDEEP 98304:wOCG4h7FiRe7WkAbJ0rCmIZDfNJBechU/dUq:3o7vWkwnmIZDfNJBegc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

hijackloader stealc meowsterioland13 credential_access discovery loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland13

http://194.36.170.210

Attributes

url_path
/26b01a4cb07d7322.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/4848-0-0x0000000000640000-0x0000000000A46000-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
3700	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
3648	explorer.exe
3648	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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4848 set thread context of 3700	4848	mediafile.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 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	mediafile.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4848	mediafile.exe
4848	mediafile.exe
3700	cmd.exe
3700	cmd.exe
3648	explorer.exe
3648	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4848	mediafile.exe
3700	cmd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4848	mediafile.exe
4848	mediafile.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 3700	4848	mediafile.exe	82
PID 4848 wrote to memory of 3700	4848	mediafile.exe	82
PID 4848 wrote to memory of 3700	4848	mediafile.exe	82
PID 4848 wrote to memory of 3700	4848	mediafile.exe	82
PID 3700 wrote to memory of 3648	3700	cmd.exe	93
PID 3700 wrote to memory of 3648	3700	cmd.exe	93
PID 3700 wrote to memory of 3648	3700	cmd.exe	93
PID 3700 wrote to memory of 3648	3700	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\mediafile.exe
"C:\Users\Admin\AppData\Local\Temp\mediafile.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4848
- 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:3700
- - 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
    PID:3648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

mozglue.dll

Path C:\ProgramData\mozglue.dll
Size 593KB
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
SSDEEP 12288:BlSyAom/gcRKMdRm4wFkRHuyG4RRGJVDjMk/x21R8gY/r:BKgcRKMdRm4wFkVVDGJVv//x21R8br
MD5 SHA1 SHA512 SSDEEP

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nss3.dll

Path C:\ProgramData\nss3.dll
Size 2.0MB
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
SSDEEP 49152:fECf12gikHlnKGxJRIB+y5nvxnaOSJ3HFNWYrVvE4CQsgzMmQfTU1NrWmy4KoAzh:J7Tf8J1Q+SS5/nr
MD5 SHA1 SHA512 SSDEEP

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6e45be4

Path C:\Users\Admin\AppData\Local\Temp\6e45be4
Size 905KB
SHA256 94ead8ad3f14697d0a100f9416184248ae8222b2680dda11cd7642b9d65da33a
MD5 0b012632be8bfbe56a175418bc8dcdcc
SHA1 b66eea9c9870bb7216a17058ef5bfcb7cf9a7d49
SHA512 c55c4b496c016ec8207dd6279096d2b2e008ed6e10abadddaaf3c64b3495a6efa4e58514beac8ce228d6d162c8df05da3aeea0c138dbc0280478477bf067c66f
SSDEEP 24576:RZxY8UAwOjDYvqi3c7uMeJCmf4rDInMQ7s/juU:RDY8hjk3JCmQrhis7uU
MD5 SHA1 SHA512 SSDEEP

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memory/3648-16-0x0000000000650000-0x0000000000894000-memory.dmp

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memory/3648-94-0x0000000000650000-0x0000000000894000-memory.dmp

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memory/3648-88-0x0000000000650000-0x0000000000894000-memory.dmp

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memory/3648-23-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/3648-22-0x0000000000D30000-0x0000000001163000-memory.dmp

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memory/3648-21-0x0000000000E13000-0x0000000000E1B000-memory.dmp

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memory/3648-18-0x0000000000650000-0x0000000000894000-memory.dmp

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memory/3648-17-0x00007FFA68210000-0x00007FFA68405000-memory.dmp

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memory/3700-13-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/3700-15-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/3700-12-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/3700-11-0x00007FFA68210000-0x00007FFA68405000-memory.dmp

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memory/3700-9-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/4848-0-0x0000000000640000-0x0000000000A46000-memory.dmp

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memory/4848-7-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/4848-6-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/4848-5-0x00000000744A3000-0x00000000744A5000-memory.dmp

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memory/4848-3-0x00000000744A3000-0x00000000744A5000-memory.dmp

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memory/4848-4-0x0000000074490000-0x000000007460B000-memory.dmp

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memory/4848-2-0x00007FFA68210000-0x00007FFA68405000-memory.dmp

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memory/4848-1-0x0000000074490000-0x000000007460B000-memory.dmp

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