d70e292a21ebc5ca1675ca585bcae52a51aad4bcee9bbbaf44b0a2cc635b64c7

General

Target

login.exe
Size

429KB
MD5

b88444cf2c03ce4efe2a1608a379ee53
SHA1

68d9285ee72288656c258cf9db9c564226a48ddb
SHA256

d70e292a21ebc5ca1675ca585bcae52a51aad4bcee9bbbaf44b0a2cc635b64c7
SHA512

7c9e116a417f2a15d2ca3f70b61697c9e34b6131b12221032cde9d64c41993f6f8cfa34196ed99122aa34d59159955d6362827f0d4eee1688bce465539e8d633
SSDEEP

12288:Zt5NpMGK6Ia5Jr4IQAvq3eSKXvVZhuwxHvh:Zt5NGGzIo3QSqOS+VZhT

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__	loader.exe

Downloads MZ/PE file

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\VideoBiosVersion	loader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	loader.exe

Executes dropped EXE 1 IoCs

pid	Process
4204	loader.exe

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x0009000000023235-2.dat	themida
behavioral2/memory/4204-4-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-6-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-7-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-8-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-9-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-10-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-11-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-12-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-13-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp	themida
behavioral2/memory/4204-14-0x00007FF6F7EB0000-0x00007FF6F894F000-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	loader.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4204	loader.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4204	loader.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4204	loader.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3596	1216	login.exe	92
PID 1216 wrote to memory of 3596	1216	login.exe	92
PID 3596 wrote to memory of 4204	3596	cmd.exe	93
PID 3596 wrote to memory of 4204	3596	cmd.exe	93
PID 4204 wrote to memory of 2292	4204	loader.exe	100
PID 4204 wrote to memory of 2292	4204	loader.exe	100
PID 2292 wrote to memory of 4704	2292	cmd.exe	102
PID 2292 wrote to memory of 4704	2292	cmd.exe	102
PID 2292 wrote to memory of 1184	2292	cmd.exe	103
PID 2292 wrote to memory of 1184	2292	cmd.exe	103
PID 2292 wrote to memory of 2120	2292	cmd.exe	104
PID 2292 wrote to memory of 2120	2292	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\login.exe
"C:\Users\Admin\AppData\Local\Temp\login.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3596
- - C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe
    C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4204
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2292
    - - C:\Windows\system32\certutil.exe
        
        certutil -hashfile "C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe" MD5
        5⤵
        
        PID:4704
    - - C:\Windows\system32\find.exe
        
        find /i /v "md5"
        5⤵
        
        PID:1184
    - - C:\Windows\system32\find.exe
        
        find /i /v "certutil"
        5⤵
        
        PID:2120

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

C:\Users\Admin\AppData\Roaming\celex-v2\loader.exe

Filesize
4.1MB

MD5
9ecdc9ed1bea6c226f92d740d43400b9

SHA1
b5b5066cd4284733d8c3f3d7de3ca6653091ae10

SHA256
60c57f14c2e0e0df0bda16646b21dddceaee0159dafbbb8daba310d4e1b5be6c

SHA512
30bc705a2438288e3647d5adfc6119d751823970972b9c6b39a60384a2b7ac261986026b8d1c0b0ca7ee3d7e95363c97b873fdc5fad4096c903cb4e15bf57e43

Download Submit
memory/4204-4-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-5-0x00007FFE33A30000-0x00007FFE33C25000-memory.dmp

Filesize
2.0MB

Download
memory/4204-6-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-7-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-8-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-9-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-10-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-11-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-12-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-13-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download
memory/4204-14-0x00007FF6F7EB0000-0x00007FF6F894F000-memory.dmp

Filesize
10.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads