9ccb2a1105f5cdbff7a8fddad84717d3fcac6d444d47d1eae03190a6ddb17ded

Analysis

max time kernel
12s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22/04/2024, 18:01

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General

Target
cheeto.exe
Size 4.1MB
Sample240422-wlx2daec8s
SHA256 9ccb2a1105f5cdbff7a8fddad84717d3fcac6d444d47d1eae03190a6ddb17ded
MD5 72fe0afcfe7ffc7dcdcb9776101fa87e
SHA1 8ac91216cb57e974d59d296181c06a29e4b16a78
SHA512 e9a4f501874a59cbc8d929449ce907c419bfe591c5a0185b986395fdef4080e0812ecbafbdeaeb0d31834c48271d335b73863116a0a68eeed4ab4b93c95d6f5c
SSDEEP 98304:tvsPd5/B1titmIlwGOJeoB79guHsk8R/c:NALambG7oB79ghkv
MD5 SHA1 SHA512 SSDEEP

Score

9^/10

evasion persistence 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

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\frAQBc8Wsa1xVPfv\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\frAQBc8Wsa1xVPfv"	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 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/3948-0-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-2-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-3-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-4-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-5-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-6-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-7-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-8-0x00007FF72F550000-0x00007FF730012000-memory.dmp	themida
behavioral2/memory/3948-15-0x00007FF72F550000-0x00007FF730012000-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 NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3948	cheeto.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3948	cheeto.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeLoadDriverPrivilege	3948	cheeto.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 4868	3948	cheeto.exe	87
PID 3948 wrote to memory of 4868	3948	cheeto.exe	87
PID 4868 wrote to memory of 2888	4868	cmd.exe	89
PID 4868 wrote to memory of 2888	4868	cmd.exe	89
PID 4868 wrote to memory of 4136	4868	cmd.exe	90
PID 4868 wrote to memory of 4136	4868	cmd.exe	90
PID 4868 wrote to memory of 4516	4868	cmd.exe	91
PID 4868 wrote to memory of 4516	4868	cmd.exe	91

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)
- Sets service image path in registry
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3948
- 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:4868
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\cheeto.exe" MD5
    3⤵
    PID:2888
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:4136
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:4516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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/3948-0-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-1-0x00007FF9656D0000-0x00007FF9658C5000-memory.dmp

Download

memory/3948-2-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-3-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-4-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-5-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-6-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-7-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-8-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

memory/3948-15-0x00007FF72F550000-0x00007FF730012000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads