hijackloader | 7452147f1175b71e6b3f8bd0b7b3de69865ef7e8466473434430e2a08dbc3ebe

General

Target

updateload.exe
Size

3.5MB
MD5

e036a20d879b669bf96f17a6f17f4c4d
SHA1

95eaeb5d63da9766590e2b3c38fc98b46eb321b0
SHA256

d69a93df6cab86b34c970896181bb1b618317e29ca8b5586364256a1d02b7cca
SHA512

ab8aa5d6768c39b5880a2726e4b75e69f2007726debfaa3e6b3f94fcf72b8ce449c58a043d3020fe4fc4d4fc00782d3003c2f3b10f854fb8cad67c406aa185e7
SSDEEP

49152:Bw38SMypl3oScZUU1a4TutGP25RE7qD6yA8u8UZRUb4kig8tldrv+:qsfe3WUUI3h5RyqDTAH8UMboI

Score

10^/10

hijackloader stealc meowsterioland1 loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland1

C2

http://46.8.238.240

Attributes

url_path
/201a735ed890db75.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/5092-0-0x0000000000A00000-0x0000000000D8D000-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
4972	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2220	explorer.exe
2220	explorer.exe

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 5092 set thread context of 4972	5092	updateload.exe	85

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3116	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5092	updateload.exe
5092	updateload.exe
4972	cmd.exe
4972	cmd.exe
2220	explorer.exe
2220	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
5092	updateload.exe
4972	cmd.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 4972	5092	updateload.exe	85
PID 5092 wrote to memory of 4972	5092	updateload.exe	85
PID 5092 wrote to memory of 4972	5092	updateload.exe	85
PID 5092 wrote to memory of 4972	5092	updateload.exe	85
PID 4972 wrote to memory of 2220	4972	cmd.exe	87
PID 4972 wrote to memory of 2220	4972	cmd.exe	87
PID 4972 wrote to memory of 2220	4972	cmd.exe	87
PID 4972 wrote to memory of 2220	4972	cmd.exe	87
PID 2220 wrote to memory of 4376	2220	explorer.exe	91
PID 2220 wrote to memory of 4376	2220	explorer.exe	91
PID 2220 wrote to memory of 4376	2220	explorer.exe	91
PID 4376 wrote to memory of 3116	4376	cmd.exe	93
PID 4376 wrote to memory of 3116	4376	cmd.exe	93
PID 4376 wrote to memory of 3116	4376	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\updateload.exe
"C:\Users\Admin\AppData\Local\Temp\updateload.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    - Loads dropped DLL
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2220
  - - 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⤵
      Suspicious use of WriteProcessMemory
      PID:4376
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:3116

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

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\672ff6ed

Filesize
871KB

MD5
1212bd554b08fc4c411946ed896979fb

SHA1
557cda6e1739cc16c0de3d6056f55a6060124707

SHA256
2da3ba415a969c2eced219bf178f3ef48afb21e6da919bdd9e428b369635247b

SHA512
778ff2b6b63786232181de675f6827d99e25b3283202f211cddb6c484a9b055d083b44ae689b5e3013be684ecff127ed495b91683558661372a4dc8b2398b953

Download Submit
memory/2220-14-0x0000000000ED0000-0x000000000110E000-memory.dmp

Filesize
2.2MB

Download
memory/2220-91-0x0000000000ED0000-0x000000000110E000-memory.dmp

Filesize
2.2MB

Download
memory/2220-59-0x0000000000ED0000-0x000000000110E000-memory.dmp

Filesize
2.2MB

Download
memory/2220-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2220-19-0x0000000000380000-0x00000000007B3000-memory.dmp

Filesize
4.2MB

Download
memory/2220-18-0x0000000000463000-0x000000000046B000-memory.dmp

Filesize
32KB

Download
memory/2220-16-0x0000000000ED0000-0x000000000110E000-memory.dmp

Filesize
2.2MB

Download
memory/2220-15-0x00007FFCE1570000-0x00007FFCE1765000-memory.dmp

Filesize
2.0MB

Download
memory/4972-11-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/4972-13-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/4972-10-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/4972-9-0x00007FFCE1570000-0x00007FFCE1765000-memory.dmp

Filesize
2.0MB

Download
memory/4972-7-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/5092-0-0x0000000000A00000-0x0000000000D8D000-memory.dmp

Filesize
3.6MB

Download
memory/5092-5-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/5092-4-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download
memory/5092-3-0x0000000075272000-0x0000000075274000-memory.dmp

Filesize
8KB

Download
memory/5092-2-0x00007FFCE1570000-0x00007FFCE1765000-memory.dmp

Filesize
2.0MB

Download
memory/5092-1-0x0000000075260000-0x00000000753DB000-memory.dmp

Filesize
1.5MB

Download

Analysis

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