b52ca43121ef221e8de12a924e13239844d879c78d149a1085ca417b41487f9c

Analysis

max time kernel
138s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/01/2024, 15:51

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General

Target
cheeto.exe
Size 3.9MB
Sample240122-tazpqaage2
SHA256 b52ca43121ef221e8de12a924e13239844d879c78d149a1085ca417b41487f9c
MD5 ec4784eb214b390523ce00434c723e1f
SHA1 2d6b5be71ce1547dfbcd209136d38925f4b4762f
SHA512 c46ccd44a68fc1b424dfe5df889e896ae2741b764a58d333793dc5f247f4c6ec8d2867761bdd6ccfe258dcff982703e222402712d0de5b8e74317ff40873c973
SSDEEP 98304:DTAMLsl1C6SnTepFEKtAflzVU8fc4nf0jsfHld98NsaePZ:DTAde6eifEKtAfpVUqc4fAwd98CaeR
MD5 SHA1 SHA512 SSDEEP

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__	cheeto.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	cheeto.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cheeto.exe

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4684-0-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-1-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-2-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-3-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-4-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-5-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-6-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-7-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-13-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-14-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp	themida
behavioral2/memory/4684-15-0x00007FF6EBB10000-0x00007FF6EC569000-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	cheeto.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4684 wrote to memory of 3396	4684	cheeto.exe	88
PID 4684 wrote to memory of 3396	4684	cheeto.exe	88
PID 3396 wrote to memory of 3356	3396	cmd.exe	90
PID 3396 wrote to memory of 3356	3396	cmd.exe	90
PID 3396 wrote to memory of 4492	3396	cmd.exe	91
PID 3396 wrote to memory of 4492	3396	cmd.exe	91
PID 3396 wrote to memory of 2100	3396	cmd.exe	92
PID 3396 wrote to memory of 2100	3396	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\cheeto.exe
"C:\Users\Admin\AppData\Local\Temp\cheeto.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:4684
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\cheeto.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3396
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\cheeto.exe" MD5
    3⤵
    PID:3356
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:4492
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:2100

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/4684-0-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-1-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-2-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-3-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-4-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-5-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-6-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-7-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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memory/4684-13-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

Download

memory/4684-14-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

Download

memory/4684-15-0x00007FF6EBB10000-0x00007FF6EC569000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads