hijackloader | 40122c3fc307277bbcb516dce390f74f27e2f798cb351a692f820ba7d3ffd735

Analysis

max time kernel
98s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 15:56

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General

Target
40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
Size 5.6MB
Sample241003-tdcpcstdkp
SHA256 40122c3fc307277bbcb516dce390f74f27e2f798cb351a692f820ba7d3ffd735
MD5 07dd73909e1a74b92498058afc918ede
SHA1 2f3f9ab4f17ccd2dfe0c4aada522b00c580c454d
SHA512 97f66cd575203cfbd0d584475c6696b160071e95466e5dde8b71d66138108f0b4d544af24706720960509fd7fd21bef07e443995457de3805168672844901853
SSDEEP 98304:XUd9wETbKHs4+b4EmeICxgHxC6qz1loJoYFqQ5dn6uqhAoCVtxnz+oEIWoJd:MwgbKM44YCxwxmzLOFfdrq+P/xnCoEIh
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

hijackloader stealc meowsterioland29 credential_access discovery loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland29

http://5.188.87.43

Attributes

url_path
/29087f1d398f0eec.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/660-0-0x0000000000400000-0x0000000000561000-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
Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1340	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2612	explorer.exe
2612	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 660 set thread context of 1340	660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe	82

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40122c3fc307277bbcb516dce390f74f27e2f798cb351.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4028	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
1340	cmd.exe
1340	cmd.exe
2612	explorer.exe
2612	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
1340	cmd.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 660 wrote to memory of 1340	660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe	82
PID 660 wrote to memory of 1340	660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe	82
PID 660 wrote to memory of 1340	660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe	82
PID 660 wrote to memory of 1340	660	40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe	82
PID 1340 wrote to memory of 2612	1340	cmd.exe	93
PID 1340 wrote to memory of 2612	1340	cmd.exe	93
PID 1340 wrote to memory of 2612	1340	cmd.exe	93
PID 1340 wrote to memory of 2612	1340	cmd.exe	93
PID 1340 wrote to memory of 2612	1340	cmd.exe	93
PID 2612 wrote to memory of 2208	2612	explorer.exe	94
PID 2612 wrote to memory of 2208	2612	explorer.exe	94
PID 2612 wrote to memory of 2208	2612	explorer.exe	94
PID 2208 wrote to memory of 4028	2208	cmd.exe	96
PID 2208 wrote to memory of 4028	2208	cmd.exe	96
PID 2208 wrote to memory of 4028	2208	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
"C:\Users\Admin\AppData\Local\Temp\40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:660
- 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:1340
- - 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:2612
  - - 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:2208
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        System Location Discovery: System Language Discovery
        Delays execution with timeout.exe
        
        PID:4028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

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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1c96c92

Path C:\Users\Admin\AppData\Local\Temp\1c96c92
Size 1.0MB
SHA256 fa68417e8623a05bdc24fbf7f15c82d3eece55a9c0542b83dd4818699137f3d5
MD5 64976468b8fbe6a0cdfb1933fe379b50
SHA1 097ae6e9b74397236af6bb36ea4038eb54417544
SHA512 cd300c62762e7eeca88a7e808014c4c17f1006cd6044e68ac437ba3391e4bd7b475b288e40e06dd3779c76ee0d62f280f16d778126b6129207dd5c3884eb6f48
SSDEEP 12288:1X0866oD5L44/H2u9cyNYtjuMeGHddGKy07Gd0CWJdxpORgTXW4i9a6vSsZHxRq8:1k866QLPZCyNYtyHCJfp/S4i7ZeHHrA
MD5 SHA1 SHA512 SSDEEP

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memory/660-0-0x0000000000400000-0x0000000000561000-memory.dmp

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memory/660-1-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/660-2-0x00007FFAB1AF0000-0x00007FFAB1CE5000-memory.dmp

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memory/660-3-0x0000000074303000-0x0000000074305000-memory.dmp

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memory/660-4-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/660-5-0x0000000074303000-0x0000000074305000-memory.dmp

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memory/660-6-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/660-7-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/1340-13-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/1340-12-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/1340-15-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/1340-9-0x00000000742F0000-0x000000007446B000-memory.dmp

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memory/1340-11-0x00007FFAB1AF0000-0x00007FFAB1CE5000-memory.dmp

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memory/2612-21-0x0000000000920000-0x0000000000D53000-memory.dmp

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memory/2612-20-0x0000000000A03000-0x0000000000A0B000-memory.dmp

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memory/2612-18-0x0000000000150000-0x00000000003B3000-memory.dmp

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memory/2612-22-0x0000000061E00000-0x0000000061EF3000-memory.dmp

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memory/2612-70-0x0000000000150000-0x00000000003B3000-memory.dmp

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memory/2612-71-0x0000000000150000-0x00000000003B3000-memory.dmp

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memory/2612-17-0x00007FFAB1AF0000-0x00007FFAB1CE5000-memory.dmp

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memory/2612-16-0x0000000000150000-0x00000000003B3000-memory.dmp

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memory/2612-95-0x0000000000150000-0x00000000003B3000-memory.dmp

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