070a26b9b519330da249104467525be63b1b23015d23c86b306d31465e79a024

Analysis

max time kernel
146s
max time network
149s
platform
windows10-1703_x64
resource
win10-20231220-en
resource tags

arch:x64arch:x86image:win10-20231220-enlocale:en-usos:windows10-1703-x64system
submitted
24-12-2023 23:33

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General

Target

celex.exe
Size

4.0MB
MD5

3d05f35dd57d171ef57a37fd9e8498fc
SHA1

c18418fe05ab38c0005ecbc0ed6ba10caca174c8
SHA256

070a26b9b519330da249104467525be63b1b23015d23c86b306d31465e79a024
SHA512

65dbc4c75dffcce863c351206cf43312c58cd1273f226c404df4da69cecabb407bfb277f4d1bbbab5952c730407a3d79f2d926b2aa77a6df7abc318c55868737
SSDEEP

98304:eEdeDPCpwDjPCTp9/ekFJkybBBHzmbLcwo8XGz:roPCSfaDmkFJk6BBypo8XGz

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

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4468-0-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-2-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-3-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-4-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-5-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-7-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-8-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-6-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-16-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-17-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp	themida
behavioral2/memory/4468-19-0x00007FF6C69E0000-0x00007FF6C7470000-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	celex.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4468	celex.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4468 wrote to memory of 1336	4468	celex.exe	78
PID 4468 wrote to memory of 1336	4468	celex.exe	78
PID 1336 wrote to memory of 4388	1336	cmd.exe	75
PID 1336 wrote to memory of 4388	1336	cmd.exe	75
PID 1336 wrote to memory of 1524	1336	cmd.exe	77
PID 1336 wrote to memory of 1524	1336	cmd.exe	77
PID 1336 wrote to memory of 1256	1336	cmd.exe	76
PID 1336 wrote to memory of 1256	1336	cmd.exe	76

C:\Users\Admin\AppData\Local\Temp\celex.exe
"C:\Users\Admin\AppData\Local\Temp\celex.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:4468
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\celex.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1336

C:\Windows\system32\certutil.exe
certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\celex.exe" MD5
1⤵
PID:4388

C:\Windows\system32\find.exe
find /i /v "certutil"
1⤵
PID:1256

C:\Windows\system32\find.exe
find /i /v "md5"
1⤵
PID:1524

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/4468-0-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-1-0x00007FFEC2410000-0x00007FFEC25EB000-memory.dmp

Filesize
1.9MB

Download
memory/4468-2-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-3-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-4-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-5-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-7-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-8-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-6-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-16-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-17-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-18-0x00007FFEC2410000-0x00007FFEC25EB000-memory.dmp

Filesize
1.9MB

Download
memory/4468-19-0x00007FF6C69E0000-0x00007FF6C7470000-memory.dmp

Filesize
10.6MB

Download
memory/4468-20-0x00007FFEC2410000-0x00007FFEC25EB000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads