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
behavioral1/memory/2688-0-0x0000000000400000-0x000000000078D000-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
2556	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
2624	explorer.exe
2624	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 2688 set thread context of 2556	2688	updateload.exe	28

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
2728	timeout.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2688	updateload.exe
2688	updateload.exe
2556	cmd.exe
2556	cmd.exe
2624	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2688	updateload.exe
2556	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2556	2688	updateload.exe	28
PID 2688 wrote to memory of 2556	2688	updateload.exe	28
PID 2688 wrote to memory of 2556	2688	updateload.exe	28
PID 2688 wrote to memory of 2556	2688	updateload.exe	28
PID 2688 wrote to memory of 2556	2688	updateload.exe	28
PID 2556 wrote to memory of 2624	2556	cmd.exe	30
PID 2556 wrote to memory of 2624	2556	cmd.exe	30
PID 2556 wrote to memory of 2624	2556	cmd.exe	30
PID 2556 wrote to memory of 2624	2556	cmd.exe	30
PID 2556 wrote to memory of 2624	2556	cmd.exe	30
PID 2624 wrote to memory of 848	2624	explorer.exe	37
PID 2624 wrote to memory of 848	2624	explorer.exe	37
PID 2624 wrote to memory of 848	2624	explorer.exe	37
PID 2624 wrote to memory of 848	2624	explorer.exe	37
PID 848 wrote to memory of 2728	848	cmd.exe	39
PID 848 wrote to memory of 2728	848	cmd.exe	39
PID 848 wrote to memory of 2728	848	cmd.exe	39
PID 848 wrote to memory of 2728	848	cmd.exe	39

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:2688
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2556
- - 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:2624
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "" & del "C:\ProgramData\*.dll"" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:848
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:2728

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:3048

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:\Users\Admin\AppData\Local\Temp\cda9ed70

Filesize
871KB

MD5
a743ccb23b5b711fd1d550ae1c6c669f

SHA1
a97e9ad09dde97e1b2460927823676697da29058

SHA256
6b58f5d36e25d088f3f976fc9a94b527d00f2a05385f24c2904ded88332bea99

SHA512
f8dacccf6cf9b9e2e00531566955075e4456aa810f7fac1b79d03097b82192e6c23173b9726f1260452783a8bdafa03d0226cab2938de3e595e1374d2a5b743a

Download Submit
\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/2556-9-0x0000000077700000-0x00000000778A9000-memory.dmp

Filesize
1.7MB

Download
memory/2556-13-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2556-11-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2556-10-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2556-7-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2624-18-0x0000000000400000-0x000000000063E000-memory.dmp

Filesize
2.2MB

Download
memory/2624-14-0x0000000000400000-0x000000000063E000-memory.dmp

Filesize
2.2MB

Download
memory/2624-15-0x0000000077700000-0x00000000778A9000-memory.dmp

Filesize
1.7MB

Download
memory/2624-16-0x0000000000400000-0x000000000063E000-memory.dmp

Filesize
2.2MB

Download
memory/2624-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/2624-74-0x0000000000400000-0x000000000063E000-memory.dmp

Filesize
2.2MB

Download
memory/2688-5-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2688-0-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2688-1-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2688-4-0x0000000074C00000-0x0000000074D74000-memory.dmp

Filesize
1.5MB

Download
memory/2688-2-0x0000000077700000-0x00000000778A9000-memory.dmp

Filesize
1.7MB

Download
memory/2688-3-0x0000000074C12000-0x0000000074C14000-memory.dmp

Filesize
8KB

Download

Analysis

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