6c4d3c37f79a4751f1c3a8ab4612e4a8a205df08e705c76a608d0b06236a8051

Analysis

max time kernel
141s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/04/2024, 09:15

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General

Target

GetFlashInfo_v9.2.0.627_/GetFlashInfo_v9.2.0.627_/gfienc.dll
Size

5.9MB
MD5

6ae064d5d426433a72f6bf1530f0ce69
SHA1

6b6dbec445f77e3e667aedfc1ef7f99697c501b1
SHA256

349459ba5ed6ddcd33a1cc968ea536fee099c9d65fd65f8e6efab2afa54c03eb
SHA512

4bafe6983523ba0f0cca8f71ca7adaff7c17b9ba5bef9cac72c4fa41e98cdd69499c22646258ed83aa3b6e7889f50272f6dcde9ae6fda95a74206612c1baac27
SSDEEP

98304:yA9sW78WKuXu+G/YuyuMFqgVqVLWDTPc6lj1dv8MCy3Bs:nPqgNc69DvXCKBs

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2212	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2648	2212	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2212	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 1904 wrote to memory of 2212	1904	rundll32.exe	28
PID 2212 wrote to memory of 2648	2212	rundll32.exe	29
PID 2212 wrote to memory of 2648	2212	rundll32.exe	29
PID 2212 wrote to memory of 2648	2212	rundll32.exe	29
PID 2212 wrote to memory of 2648	2212	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\GetFlashInfo_v9.2.0.627_\GetFlashInfo_v9.2.0.627_\gfienc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\GetFlashInfo_v9.2.0.627_\GetFlashInfo_v9.2.0.627_\gfienc.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 432
    3⤵
    - Program crash
    PID:2648

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/2212-0-0x0000000002370000-0x0000000002966000-memory.dmp

Filesize
6.0MB

Download
memory/2212-1-0x0000000002370000-0x0000000002966000-memory.dmp

Filesize
6.0MB

Download
memory/2212-2-0x0000000077780000-0x0000000077782000-memory.dmp

Filesize
8KB

Download
memory/2212-6-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2212-5-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2212-4-0x00000000002C0000-0x00000000002C2000-memory.dmp

Filesize
8KB

Download
memory/2212-3-0x0000000002370000-0x0000000002966000-memory.dmp

Filesize
6.0MB

Download
memory/2212-7-0x0000000002370000-0x0000000002966000-memory.dmp

Filesize
6.0MB

Download