hijackloader | 2895f26ebeb8334731591ac868e9ab554a3568632e3c62e802739e5d0fc38d88

Analysis

max time kernel
77s
max time network
68s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 13:48

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General

Target
807675A50EE7545E02DAEAC9822842B7.exe
Size 922KB
Sample240501-q36rysac74
SHA256 2895f26ebeb8334731591ac868e9ab554a3568632e3c62e802739e5d0fc38d88
MD5 807675a50ee7545e02daeac9822842b7
SHA1 967094e1ef9155a031687396ba99855e54870612
SHA512 12a928dc23e7fd03996e5d41d8fce1d091b0fa979d379e63e6e89d58440f8a21a809a646e1c6431eda68d71515e1aed06219c4f3d8c0c86e25724b1d6e5af5b4
SSDEEP 24576:e8inPEBCZN5hoVlnJXzJ/SEVSoMAALia4:Dg5BuxF/SRF4
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

hijackloader stealc loader stealer

Malware Config

Extracted

Family

stealc

http://193.163.7.88

Attributes

url_path
/a69d09b357e06b52.php

Signatures

Detects HijackLoader (aka IDAT Loader) 1 IoCs

resource	yara_rule
behavioral2/memory/4436-0-0x0000000000A70000-0x0000000000B58000-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

Deletes itself 1 IoCs

pid	Process
3952	cmd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4436 set thread context of 3952	4436	807675A50EE7545E02DAEAC9822842B7.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4836	1964	WerFault.exe	89

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
4436	807675A50EE7545E02DAEAC9822842B7.exe
4436	807675A50EE7545E02DAEAC9822842B7.exe
3952	cmd.exe
3952	cmd.exe
1964	explorer.exe
1964	explorer.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4436	807675A50EE7545E02DAEAC9822842B7.exe
3952	cmd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 3952	4436	807675A50EE7545E02DAEAC9822842B7.exe	84
PID 4436 wrote to memory of 3952	4436	807675A50EE7545E02DAEAC9822842B7.exe	84
PID 4436 wrote to memory of 3952	4436	807675A50EE7545E02DAEAC9822842B7.exe	84
PID 4436 wrote to memory of 3952	4436	807675A50EE7545E02DAEAC9822842B7.exe	84
PID 3952 wrote to memory of 1964	3952	cmd.exe	89
PID 3952 wrote to memory of 1964	3952	cmd.exe	89
PID 3952 wrote to memory of 1964	3952	cmd.exe	89
PID 3952 wrote to memory of 1964	3952	cmd.exe	89
PID 3952 wrote to memory of 1964	3952	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\807675A50EE7545E02DAEAC9822842B7.exe
"C:\Users\Admin\AppData\Local\Temp\807675A50EE7545E02DAEAC9822842B7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3952
- - C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    3⤵
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:1964
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 1172
      4⤵
      Program crash
      PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1964 -ip 1964
1⤵
PID:4560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

953fe6e2

Path C:\Users\Admin\AppData\Local\Temp\953fe6e2
Size 861KB
SHA256 af11b0cc3d81ce286a82363e107e69a0536931003d6c74af87c97a5d4f70feb3
MD5 daed2e751199b2aa9953efae7d4f089f
SHA1 9687cebe75cb16e677e537befd26a9a3479c3ec7
SHA512 f95d466d4f29ff7c10c33730a1e1d7885a771ace27f0f873b3045da439692819d5cb31cab72498b3413c38406089795c3c2056a3a95e8bb874956c5986a94e87
SSDEEP 12288:d+AGnp1/THxF7ger3NiNuahvFN5lBNqghxYc+1ngKmifofQL2OikdN7cR4g6guq+:dE1bRlkNp7BNbmVKQoIfgeg6gWue
MD5 SHA1 SHA512 SSDEEP

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memory/1964-13-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-24-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-23-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-22-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-21-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-20-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-18-0x00000000007A0000-0x0000000000BD3000-memory.dmp

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memory/1964-19-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-15-0x0000000000420000-0x000000000065C000-memory.dmp

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memory/1964-14-0x00007FFBEC870000-0x00007FFBECA65000-memory.dmp

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memory/3952-6-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/3952-12-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/3952-9-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/3952-10-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/3952-8-0x00007FFBEC870000-0x00007FFBECA65000-memory.dmp

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memory/4436-0-0x0000000000A70000-0x0000000000B58000-memory.dmp

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memory/4436-4-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/4436-3-0x0000000075470000-0x00000000755EB000-memory.dmp

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memory/4436-2-0x00007FFBEC870000-0x00007FFBECA65000-memory.dmp

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memory/4436-1-0x0000000075470000-0x00000000755EB000-memory.dmp

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