hijackloader | d72e2b176358299b9d09c11b3d654e575777d96beac99e9c1ccebe5ab2523c24

General

Target

98BC892EA45510099A0B91646A3A0A4E.exe
Size

1.3MB
MD5

98bc892ea45510099a0b91646a3a0a4e
SHA1

75b11dc9b520e53ef6ec9009afdf8e41fdaa0e09
SHA256

d72e2b176358299b9d09c11b3d654e575777d96beac99e9c1ccebe5ab2523c24
SHA512

a43683bfc093803859175115af427babfc8e7a35d3a9da24ff0aca54161b34f43cc4c566d06b3169c304532dbeb67ee6f366d0fa62b01f08f82b67f8cd1c4dec
SSDEEP

24576:xtneZf0GdlLQXjOrBcDQmTNpuTg+uKlGp0B0WbCWyOVyOckiAhUcMkiAhUcXuUP:xtexLQTOmDlNpEhB0crVriKUXKUXUP

Score

10^/10

hijackloader stealc cozy7 loader spyware stealer

Malware Config

Extracted

Family

stealc

Botnet

cozy7

C2

http://89.105.198.134

Attributes

url_path
/244cbe83570df263.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/4168-0-0x0000000000AF0000-0x0000000000C49000-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
2812	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
4164	explorer.exe
4164	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 4168 set thread context of 2812	4168	98BC892EA45510099A0B91646A3A0A4E.exe	83

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
4332	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4168	98BC892EA45510099A0B91646A3A0A4E.exe
4168	98BC892EA45510099A0B91646A3A0A4E.exe
2812	cmd.exe
2812	cmd.exe
4164	explorer.exe
4164	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4168	98BC892EA45510099A0B91646A3A0A4E.exe
2812	cmd.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4168 wrote to memory of 2812	4168	98BC892EA45510099A0B91646A3A0A4E.exe	83
PID 4168 wrote to memory of 2812	4168	98BC892EA45510099A0B91646A3A0A4E.exe	83
PID 4168 wrote to memory of 2812	4168	98BC892EA45510099A0B91646A3A0A4E.exe	83
PID 4168 wrote to memory of 2812	4168	98BC892EA45510099A0B91646A3A0A4E.exe	83
PID 2812 wrote to memory of 4164	2812	cmd.exe	99
PID 2812 wrote to memory of 4164	2812	cmd.exe	99
PID 2812 wrote to memory of 4164	2812	cmd.exe	99
PID 2812 wrote to memory of 4164	2812	cmd.exe	99
PID 4164 wrote to memory of 4600	4164	explorer.exe	102
PID 4164 wrote to memory of 4600	4164	explorer.exe	102
PID 4164 wrote to memory of 4600	4164	explorer.exe	102
PID 4600 wrote to memory of 4332	4600	cmd.exe	104
PID 4600 wrote to memory of 4332	4600	cmd.exe	104
PID 4600 wrote to memory of 4332	4600	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\98BC892EA45510099A0B91646A3A0A4E.exe
"C:\Users\Admin\AppData\Local\Temp\98BC892EA45510099A0B91646A3A0A4E.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4168
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2812
- - 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:4164
  - - 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:4600
    - - C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 5
        5⤵
        Delays execution with timeout.exe
        
        PID:4332

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

Loading Replay Monitor...

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\9eac9199

Filesize
860KB

MD5
71f2c1eafa1179e178635d03f6ed50fe

SHA1
70a38952b2e6cbfa2b91c5c53621b60a72bb95e7

SHA256
d645f1ff467b05450d751d7c99588a73c15ffccf14a73a046554c2c07a57252b

SHA512
84cece2d8816d608d93a22c027a2a773563897053daab6da781d829b965ff0b54a4280b6400283c96cdfcb2133d4f41d1cf3f6095071d69933baa021b6566b15

Download Submit
memory/2812-9-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/2812-13-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/2812-10-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/2812-11-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/2812-7-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/4164-20-0x0000000000870000-0x0000000000CA3000-memory.dmp

Filesize
4.2MB

Download
memory/4164-60-0x0000000000600000-0x000000000083C000-memory.dmp

Filesize
2.2MB

Download
memory/4164-88-0x0000000000600000-0x000000000083C000-memory.dmp

Filesize
2.2MB

Download
memory/4164-21-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download
memory/4164-14-0x0000000000600000-0x000000000083C000-memory.dmp

Filesize
2.2MB

Download
memory/4164-15-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/4164-16-0x0000000000600000-0x000000000083C000-memory.dmp

Filesize
2.2MB

Download
memory/4164-19-0x0000000000953000-0x000000000095B000-memory.dmp

Filesize
32KB

Download
memory/4168-0-0x0000000000AF0000-0x0000000000C49000-memory.dmp

Filesize
1.3MB

Download
memory/4168-3-0x00000000752E2000-0x00000000752E4000-memory.dmp

Filesize
8KB

Download
memory/4168-5-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/4168-2-0x00007FFFBC790000-0x00007FFFBC985000-memory.dmp

Filesize
2.0MB

Download
memory/4168-1-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download
memory/4168-4-0x00000000752D0000-0x000000007544B000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing