19533bf0ecccd56fefb33af9f4ba7d8b3a11046b9b0e88d3671a2a2653ae619c

General

Target

19533bf0ecccd56fefb33af9f4ba7d8b3a11046b9b0e88d3671a2a2653ae619c.dll
Size

5.2MB
MD5

9a9e31dcf05385a8d07124321cf2ae36
SHA1

805bd322e28fe6ebb3b6d5edece0122b9cc585f1
SHA256

19533bf0ecccd56fefb33af9f4ba7d8b3a11046b9b0e88d3671a2a2653ae619c
SHA512

7ed845cc9465eacf6a0526db6a4a5129925e546206d87b8b51589679069a01db1190446a5610c7709a3a7748cfbf2a1a83e7f0cd2cccf8c80f2e35edeef8f8fb

Score

9^/10

evasion themida trojan

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

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/960-57-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-58-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-59-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-60-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-61-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-62-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-63-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida
behavioral1/memory/960-64-0x0000000001EC0000-0x0000000002CC7000-memory.dmp	themida

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

960 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1100 960 WerFault.exe rundll32.exe

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

pid	process
960	rundll32.exe

pid	pid_target	process	target process
1100	960	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 1532 wrote to memory of 960	1532	rundll32.exe	rundll32.exe
PID 960 wrote to memory of 1100	960	rundll32.exe	WerFault.exe
PID 960 wrote to memory of 1100	960	rundll32.exe	WerFault.exe
PID 960 wrote to memory of 1100	960	rundll32.exe	WerFault.exe
PID 960 wrote to memory of 1100	960	rundll32.exe	WerFault.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19533bf0ecccd56fefb33af9f4ba7d8b3a11046b9b0e88d3671a2a2653ae619c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1532

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\19533bf0ecccd56fefb33af9f4ba7d8b3a11046b9b0e88d3671a2a2653ae619c.dll,#1
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 324
3⤵
- Program crash
PID:1100

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/960-54-0x0000000000000000-mapping.dmp

Download
memory/960-55-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download
memory/960-56-0x0000000077C90000-0x0000000077E10000-memory.dmp

Filesize
1.5MB

Download
memory/960-57-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-58-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-59-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-60-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-61-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-62-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-63-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/960-64-0x0000000001EC0000-0x0000000002CC7000-memory.dmp

Filesize
14.0MB

Download
memory/1100-65-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads