e17adb780a9972b76e3c262249174487e727ee809f9a6407d32380892752b2a4

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-12-2023 23:36

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General

Target

43aafc65ac2d512dca0620a918656424.exe
Size

2.1MB
MD5

43aafc65ac2d512dca0620a918656424
SHA1

efac08ce50b901c923bff75dbfcc55c781ffbef5
SHA256

e17adb780a9972b76e3c262249174487e727ee809f9a6407d32380892752b2a4
SHA512

91803ae7fdacc5e5cf244a8ac606349f1587ac11cc3eebca5b5c675ed1fece2a55f14a85f659cf190721e8a0e0a0ecbf1717147969e0f5b525303c0a6048f3a5
SSDEEP

49152:nkW0NNm/cXrpQvPQS1EAMW9K7IuF9FeW0xilgkBNhi/e8G:nkWPz/OW48keH+i/lG

Score

7^/10

evasion themida

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 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	43aafc65ac2d512dca0620a918656424.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Wine	43aafc65ac2d512dca0620a918656424.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2976-0-0x0000000000400000-0x00000000005D6000-memory.dmp	themida
behavioral1/memory/2976-1-0x0000000000400000-0x00000000005D6000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2976	43aafc65ac2d512dca0620a918656424.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3004	2976	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2976	43aafc65ac2d512dca0620a918656424.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2976 wrote to memory of 3004	2976	43aafc65ac2d512dca0620a918656424.exe	28
PID 2976 wrote to memory of 3004	2976	43aafc65ac2d512dca0620a918656424.exe	28
PID 2976 wrote to memory of 3004	2976	43aafc65ac2d512dca0620a918656424.exe	28
PID 2976 wrote to memory of 3004	2976	43aafc65ac2d512dca0620a918656424.exe	28

C:\Users\Admin\AppData\Local\Temp\43aafc65ac2d512dca0620a918656424.exe
"C:\Users\Admin\AppData\Local\Temp\43aafc65ac2d512dca0620a918656424.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 276
  2⤵
  - Program crash
  PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2976-0-0x0000000000400000-0x00000000005D6000-memory.dmp

Filesize
1.8MB

Download
memory/2976-1-0x0000000000400000-0x00000000005D6000-memory.dmp

Filesize
1.8MB

Download