61b0f8ab825ecc45f061cacf3d0db54c9c65036a358e1d17c37f03485e64e880

Analysis

max time kernel
34s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2024, 20:24

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General

Target

Loader.exe
Size

6.5MB
MD5

f0326319b73da83619ee7a95f6749879
SHA1

cbdc8118db05c3d00c06f154cf2736661d83d011
SHA256

61b0f8ab825ecc45f061cacf3d0db54c9c65036a358e1d17c37f03485e64e880
SHA512

80123795df84a835b1f93f28ac24321ee4661604b9d293266688ff2235a15f7aed121c98a95874b094abdecd37f0fb6d532aae6ee49c40f2102d0cf465e5cfd7
SSDEEP

98304:VL56cXJ/wBDQb9cLGoUYWQEeoPwnIDN7Qn23LL/CjpzwcuZpBzf7uYr0WGm:Wc9NpMGoEvNDY23epzUNL7uYwM

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Loader.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\VideoBiosVersion	Loader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Loader.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/3732-0-0x0000000140000000-0x0000000140E1B000-memory.dmp	themida
behavioral2/memory/3732-2-0x0000000140000000-0x0000000140E1B000-memory.dmp	themida
behavioral2/memory/3732-3-0x0000000140000000-0x0000000140E1B000-memory.dmp	themida
behavioral2/memory/3732-4-0x0000000140000000-0x0000000140E1B000-memory.dmp	themida
behavioral2/memory/3732-6-0x0000000140000000-0x0000000140E1B000-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	Loader.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3732	Loader.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3732 wrote to memory of 3416	3732	Loader.exe	85
PID 3732 wrote to memory of 3416	3732	Loader.exe	85
PID 3732 wrote to memory of 4164	3732	Loader.exe	86
PID 3732 wrote to memory of 4164	3732	Loader.exe	86
PID 4164 wrote to memory of 3800	4164	cmd.exe	87
PID 4164 wrote to memory of 3800	4164	cmd.exe	87
PID 4164 wrote to memory of 1872	4164	cmd.exe	88
PID 4164 wrote to memory of 1872	4164	cmd.exe	88
PID 4164 wrote to memory of 3080	4164	cmd.exe	89
PID 4164 wrote to memory of 3080	4164	cmd.exe	89
PID 3732 wrote to memory of 4736	3732	Loader.exe	92
PID 3732 wrote to memory of 4736	3732	Loader.exe	92
PID 3732 wrote to memory of 1792	3732	Loader.exe	94
PID 3732 wrote to memory of 1792	3732	Loader.exe	94

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- 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:3732
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:3416
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4164
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5
    3⤵
    PID:3800
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:1872
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:3080
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c CLS
  2⤵
  PID:4736
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c CLS
  2⤵
  PID:1792

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

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Downloads

memory/3732-0-0x0000000140000000-0x0000000140E1B000-memory.dmp

Filesize
14.1MB

Download
memory/3732-1-0x00007FFDAA150000-0x00007FFDAA152000-memory.dmp

Filesize
8KB

Download
memory/3732-2-0x0000000140000000-0x0000000140E1B000-memory.dmp

Filesize
14.1MB

Download
memory/3732-3-0x0000000140000000-0x0000000140E1B000-memory.dmp

Filesize
14.1MB

Download
memory/3732-4-0x0000000140000000-0x0000000140E1B000-memory.dmp

Filesize
14.1MB

Download
memory/3732-6-0x0000000140000000-0x0000000140E1B000-memory.dmp

Filesize
14.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads