ecab58d9e2edf6539e3cca667a72cb0ced2567bf30073f9f216af4a872c5beaf

General

Target

release/main/celex.exe
Size

3.9MB
MD5

2ae7fb5557a3501e32e3528873d83100
SHA1

86b632d455e6651d5e6d6293ed3c4b0613660976
SHA256

16027e06f365940fcf8699655d34f22804361b4409cfa57dc97889bb8db8c306
SHA512

f42ceafdf978cfc6bc2dd25fb72bf0b5963aa24146b33cf74bb68eff785c757f5237a37f44a0991487cc4250ad5fc97bfd7b0827eee444bab9cdb6c828e4238c
SSDEEP

49152:CfpIS9hSoXZRIusMK8sJ6SaskwLPQgA0ddqKpDVvleDBMkZsdSsypzHDBaNOIsdh:iQcmaBqogAS9TleDOQsIrpFjNlwUz

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__	celex.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"	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 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral4/memory/3432-0-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-3-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-4-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-2-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-7-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-8-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-6-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-5-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-21-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp	themida
behavioral4/memory/3432-23-0x00007FF7E1EA0000-0x00007FF7E28F6000-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
3432	celex.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3432	celex.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeLoadDriverPrivilege	3432	celex.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 5032	3432	celex.exe	87
PID 3432 wrote to memory of 5032	3432	celex.exe	87
PID 5032 wrote to memory of 4800	5032	cmd.exe	89
PID 5032 wrote to memory of 4800	5032	cmd.exe	89
PID 5032 wrote to memory of 744	5032	cmd.exe	90
PID 5032 wrote to memory of 744	5032	cmd.exe	90
PID 5032 wrote to memory of 1116	5032	cmd.exe	91
PID 5032 wrote to memory of 1116	5032	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\release\main\celex.exe
"C:\Users\Admin\AppData\Local\Temp\release\main\celex.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:3432
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\release\main\celex.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5032
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\release\main\celex.exe" MD5
    3⤵
    PID:4800
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:744
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:1116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3432-0-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-1-0x00007FFD94790000-0x00007FFD94792000-memory.dmp

Filesize
8KB

Download
memory/3432-3-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-4-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-2-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-7-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-8-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-6-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-5-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-21-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download
memory/3432-23-0x00007FF7E1EA0000-0x00007FF7E28F6000-memory.dmp

Filesize
10.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads