15fa86cb0fc2faac28d529529ba9e1688f43a87ca6c43e411e247eeafa6959ee

Resubmissions

03-09-2024 09:31

240903-lharkatamj 7

03-09-2024 09:22

240903-lbyj2stgpf 7

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 09:22

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General

Target

VANGUARD BYPASS.exe
Size

2.5MB
MD5

2473c143b9591080093561cd3fc42955
SHA1

3a65083c411edba6b7a5dcdb93a2bebcc410e95b
SHA256

89ee1cbd0ef4390b420dea55744487665d4bf7dcfa2c2597db2984dfad5dff1a
SHA512

ae599014de20c34d0b75d938f743dc443b37bbd5095ec4f24548f9cff5a08f48a7959eae0dea070cf5d43d6916a4affe8ff1d825f5d8ab2907f00a9df5a5c334
SSDEEP

49152:pXkQq9LDj26Mx1zrHvxx5qaXqQ7hsaNsRBt87lOpSJnQxnDNZGZ8VpDTU2:pXkQqxD8NrHxhXqosaNO8JOY+6OVlU

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS 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\SystemBiosVersion	VANGUARD BYPASS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	VANGUARD BYPASS.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2616	VANGUARD BYPASS.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2640	2616	VANGUARD BYPASS.exe	32
PID 2616 wrote to memory of 2640	2616	VANGUARD BYPASS.exe	32
PID 2616 wrote to memory of 2640	2616	VANGUARD BYPASS.exe	32
PID 2640 wrote to memory of 2728	2640	cmd.exe	33
PID 2640 wrote to memory of 2728	2640	cmd.exe	33
PID 2640 wrote to memory of 2728	2640	cmd.exe	33
PID 2640 wrote to memory of 2744	2640	cmd.exe	34
PID 2640 wrote to memory of 2744	2640	cmd.exe	34
PID 2640 wrote to memory of 2744	2640	cmd.exe	34
PID 2640 wrote to memory of 2748	2640	cmd.exe	35
PID 2640 wrote to memory of 2748	2640	cmd.exe	35
PID 2640 wrote to memory of 2748	2640	cmd.exe	35
PID 2616 wrote to memory of 2756	2616	VANGUARD BYPASS.exe	36
PID 2616 wrote to memory of 2756	2616	VANGUARD BYPASS.exe	36
PID 2616 wrote to memory of 2756	2616	VANGUARD BYPASS.exe	36
PID 2756 wrote to memory of 2828	2756	cmd.exe	37
PID 2756 wrote to memory of 2828	2756	cmd.exe	37
PID 2756 wrote to memory of 2828	2756	cmd.exe	37
PID 2756 wrote to memory of 2924	2756	cmd.exe	38
PID 2756 wrote to memory of 2924	2756	cmd.exe	38
PID 2756 wrote to memory of 2924	2756	cmd.exe	38
PID 2756 wrote to memory of 2684	2756	cmd.exe	39
PID 2756 wrote to memory of 2684	2756	cmd.exe	39
PID 2756 wrote to memory of 2684	2756	cmd.exe	39
PID 2616 wrote to memory of 2692	2616	VANGUARD BYPASS.exe	40
PID 2616 wrote to memory of 2692	2616	VANGUARD BYPASS.exe	40
PID 2616 wrote to memory of 2692	2616	VANGUARD BYPASS.exe	40

C:\Users\Admin\AppData\Local\Temp\VANGUARD BYPASS.exe
"C:\Users\Admin\AppData\Local\Temp\VANGUARD BYPASS.exe"
1⤵
- Checks BIOS information in registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\VANGUARD BYPASS.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\VANGUARD BYPASS.exe" MD5
    3⤵
    PID:2728
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:2744
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:2748
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "test.txt" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2756
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "test.txt" MD5
    3⤵
    PID:2828
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:2924
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:2684
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2616 -s 748
  2⤵
  PID:2692

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

memory/2616-0-0x000000013F200000-0x000000013F8CD000-memory.dmp

Filesize
6.8MB

Download
memory/2616-1-0x00000000773F0000-0x00000000773F2000-memory.dmp

Filesize
8KB

Download
memory/2616-2-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/2616-4-0x000000013F200000-0x000000013F8CD000-memory.dmp

Filesize
6.8MB

Download