1f6e8362459dbf90ae828de7cb1e77bcd280023f92f2fe08dda2aba3a5b899d7

General

Target

1f6e8362459dbf90ae828de7cb1e77bcd280023f92f2fe08dda2aba3a5b899d7.dll
Size

3.5MB
MD5

c25e8091dba112c6fe166432ebde1107
SHA1

07699ef9a2db9932a56ca16964ac7f9eb437bffe
SHA256

1f6e8362459dbf90ae828de7cb1e77bcd280023f92f2fe08dda2aba3a5b899d7
SHA512

fd190fdc3ce48a04a34b040314cfa3707ce4823247dd1a39bdff8ab210c632ba4d10d9e3c0a166de15f45754e708fe0e65d63bf7b30c43a3ee04711a53c32007
SSDEEP

98304:puluY9mSdkWc00BCa9KUIJToV4QmxTvFRyAlccsa:pp+mmYBJ1IJY4bxdlccv

Score

9^/10

discovery 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

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

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2968-1-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-3-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-6-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-7-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-5-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-8-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-10-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-11-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-9-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-12-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida
behavioral1/memory/2968-13-0x0000000072CF0000-0x00000000735BF000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2968	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2748	2968	WerFault.exe	28

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 1596 wrote to memory of 2968	1596	rundll32.exe	28
PID 2968 wrote to memory of 2748	2968	rundll32.exe	29
PID 2968 wrote to memory of 2748	2968	rundll32.exe	29
PID 2968 wrote to memory of 2748	2968	rundll32.exe	29
PID 2968 wrote to memory of 2748	2968	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f6e8362459dbf90ae828de7cb1e77bcd280023f92f2fe08dda2aba3a5b899d7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1596
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f6e8362459dbf90ae828de7cb1e77bcd280023f92f2fe08dda2aba3a5b899d7.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
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2968 -s 248
    3⤵
    - Program crash
    PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2968-0-0x0000000073F50000-0x000000007481F000-memory.dmp

Filesize
8.8MB

Download
memory/2968-1-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-3-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-4-0x00000000771C0000-0x00000000771C2000-memory.dmp

Filesize
8KB

Download
memory/2968-2-0x0000000073F50000-0x000000007481F000-memory.dmp

Filesize
8.8MB

Download
memory/2968-6-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-7-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-5-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-8-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-10-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-11-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-9-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-12-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download
memory/2968-13-0x0000000072CF0000-0x00000000735BF000-memory.dmp

Filesize
8.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads