dd83ffe71b9b88ee667f0de89ee47d7fda7d5e26ddf1a0e021b9cafb9ae472dc

Analysis

max time kernel
44s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 12:41

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General

Target

dd83ffe71b9b88ee667f0de89ee47d7fda7d5e26ddf1a0e021b9cafb9ae472dc.dll
Size

1.9MB
MD5

f26076d7ac1fef70ea6667a5cf62d7af
SHA1

6764620fd2c48b70734b0114d7d638489c6c9e13
SHA256

dd83ffe71b9b88ee667f0de89ee47d7fda7d5e26ddf1a0e021b9cafb9ae472dc
SHA512

094b3545837ad3b0d7342362dafe5dea15b354081cd96c7ab893c3b0254489f0fb22cbdbdf05f10430067768f5b3b6fafa76b2e14cdec9d7c6ec31bf3fb90fc0
SSDEEP

49152:+maHknTlV73iP54hnX6yVXebpMZoeOneWcsHwi:wY3PhX66ub1VhHb

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

Processes:

rundll32.exe

description ioc process

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

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

Processes:

rundll32.exe

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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Wine rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

1744 rundll32.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

rundll32.exe

pid process

1744 rundll32.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Wine	rundll32.exe

pid	process
1744	rundll32.exe

pid	process
1744	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe
PID 1104 wrote to memory of 1744	1104	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd83ffe71b9b88ee667f0de89ee47d7fda7d5e26ddf1a0e021b9cafb9ae472dc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd83ffe71b9b88ee667f0de89ee47d7fda7d5e26ddf1a0e021b9cafb9ae472dc.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
PID:1744

MITRE ATT&CK Enterprise v6

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/1744-54-0x0000000000000000-mapping.dmp

Download
memory/1744-55-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

Filesize
8KB

Download
memory/1744-56-0x0000000001EA0000-0x00000000024B4000-memory.dmp

Filesize
6.1MB

Download
memory/1744-57-0x0000000001EA0000-0x00000000024B4000-memory.dmp

Filesize
6.1MB

Download
memory/1744-58-0x0000000001EA0000-0x00000000024B4000-memory.dmp

Filesize
6.1MB

Download
memory/1744-59-0x0000000001EA0000-0x00000000024B4000-memory.dmp

Filesize
6.1MB

Download
memory/1744-60-0x0000000077710000-0x0000000077890000-memory.dmp

Filesize
1.5MB

Download
memory/1744-61-0x0000000077710000-0x0000000077890000-memory.dmp

Filesize
1.5MB

Download