dfd2409f2b0f403e82252b48a84ff4d7bc3ebc1392226a9a067adc4791a26ee7

Analysis

max time kernel
43s
max time network
46s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 19:24

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General

Target

dfd2409f2b0f403e82252b48a84ff4d7bc3ebc1392226a9a067adc4791a26ee7.dll
Size

2.4MB
MD5

a7cb42450bf26cecfd2a460d8eb6b25b
SHA1

5ea4856e2fa4654b053b7b6262857949b3309d49
SHA256

dfd2409f2b0f403e82252b48a84ff4d7bc3ebc1392226a9a067adc4791a26ee7
SHA512

cf8032b39907e002854edb82ea2085f899d1564a31f4391b05e03f641dad9ff96a7160a498f0bfe2b5e5dd91c4dbd1c1d4a7559dd98d9282eded68890ae3cea8

Score

9^/10

evasion trojan

Malware Config

Signatures

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

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

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

1364 rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

pid	process
1364	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe
PID 1652 wrote to memory of 1364	1652	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfd2409f2b0f403e82252b48a84ff4d7bc3ebc1392226a9a067adc4791a26ee7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\dfd2409f2b0f403e82252b48a84ff4d7bc3ebc1392226a9a067adc4791a26ee7.dll,#1
2⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1364

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1364-54-0x0000000000000000-mapping.dmp

Download
memory/1364-55-0x0000000076461000-0x0000000076463000-memory.dmp

Filesize
8KB

Download
memory/1364-56-0x0000000010001000-0x0000000010005000-memory.dmp

Filesize
16KB

Download
memory/1364-57-0x0000000077E40000-0x0000000077FC0000-memory.dmp

Filesize
1.5MB

Download