070a26b9b519330da249104467525be63b1b23015d23c86b306d31465e79a024

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 12 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral4/memory/1420-0-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-2-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-3-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-4-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-5-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-6-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-8-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-7-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-15-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-17-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-18-0x00007FF665290000-0x00007FF665D20000-memory.dmp	themida
behavioral4/memory/1420-19-0x00007FF665290000-0x00007FF665D20000-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
1420	celex.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2952	1420	celex.exe	81
PID 1420 wrote to memory of 2952	1420	celex.exe	81
PID 2952 wrote to memory of 3760	2952	cmd.exe	82
PID 2952 wrote to memory of 3760	2952	cmd.exe	82
PID 2952 wrote to memory of 4796	2952	cmd.exe	84
PID 2952 wrote to memory of 4796	2952	cmd.exe	84
PID 2952 wrote to memory of 2884	2952	cmd.exe	83
PID 2952 wrote to memory of 2884	2952	cmd.exe	83

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:1420
- 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:2952
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\celex.exe" MD5
    3⤵
    PID:3760
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:2884
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:4796

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

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1420-0-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-1-0x00007FFA87060000-0x00007FFA87269000-memory.dmp

Filesize
2.0MB

Download
memory/1420-2-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-3-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-4-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-5-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-6-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-8-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-7-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-15-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-17-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-18-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-19-0x00007FF665290000-0x00007FF665D20000-memory.dmp

Filesize
10.6MB

Download
memory/1420-20-0x00007FFA87060000-0x00007FFA87269000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads