67cfdfdb26f8a2ad408fa8e56b8871bbf4657657ef0c263856edaf129378df18

General

Target

tmp.exe
Size

3.7MB
MD5

92869e94c71833c72b431746f234df5d
SHA1

ba100de55cb7b04a6e39e391942b28a31bd3bd00
SHA256

67cfdfdb26f8a2ad408fa8e56b8871bbf4657657ef0c263856edaf129378df18
SHA512

12add3273ca7e14763f46f90b94c90f7be524d117b657784b6a87f928615a251193de1401be42bdd06c4af3192ce270d8ec766aaf9cbc9e9733e2c371d059f80
SSDEEP

98304:1C6bC1J7itJ72IsqMjUB/ynP24vUvO1ReneFnZ2+n+WOYtGQk:xkAKPRgo9cQk

Score

9^/10

discovery evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	WindowsPaint-Ver2.9.1.0.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	tmp.exe

Executes dropped EXE 1 IoCs

pid	Process
1556	WindowsPaint-Ver2.9.1.0.exe

Checks BIOS information in registry 2 TTPs 4 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	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	WindowsPaint-Ver2.9.1.0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	WindowsPaint-Ver2.9.1.0.exe

Modifies file permissions 1 TTPs 3 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1792	icacls.exe
996	icacls.exe
904	icacls.exe

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1076-55-0x0000000001030000-0x00000000013E0000-memory.dmp	themida
behavioral1/memory/1076-56-0x0000000001030000-0x00000000013E0000-memory.dmp	themida
behavioral1/memory/1076-57-0x0000000001030000-0x00000000013E0000-memory.dmp	themida
behavioral1/memory/1076-59-0x0000000001030000-0x00000000013E0000-memory.dmp	themida
behavioral1/files/0x000b0000000122c2-61.dat	themida
behavioral1/memory/1076-64-0x0000000001030000-0x00000000013E0000-memory.dmp	themida
behavioral1/files/0x000b0000000122c2-66.dat	themida
behavioral1/memory/1556-68-0x0000000000F70000-0x0000000001320000-memory.dmp	themida
behavioral1/memory/1556-69-0x0000000000F70000-0x0000000001320000-memory.dmp	themida
behavioral1/memory/1556-70-0x0000000000F70000-0x0000000001320000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	tmp.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	WindowsPaint-Ver2.9.1.0.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1672	schtasks.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 1672	1076	tmp.exe	26
PID 1076 wrote to memory of 1672	1076	tmp.exe	26
PID 1076 wrote to memory of 1672	1076	tmp.exe	26
PID 1076 wrote to memory of 1672	1076	tmp.exe	26
PID 1076 wrote to memory of 1792	1076	tmp.exe	28
PID 1076 wrote to memory of 1792	1076	tmp.exe	28
PID 1076 wrote to memory of 1792	1076	tmp.exe	28
PID 1076 wrote to memory of 1792	1076	tmp.exe	28
PID 1076 wrote to memory of 996	1076	tmp.exe	30
PID 1076 wrote to memory of 996	1076	tmp.exe	30
PID 1076 wrote to memory of 996	1076	tmp.exe	30
PID 1076 wrote to memory of 996	1076	tmp.exe	30
PID 1076 wrote to memory of 904	1076	tmp.exe	32
PID 1076 wrote to memory of 904	1076	tmp.exe	32
PID 1076 wrote to memory of 904	1076	tmp.exe	32
PID 1076 wrote to memory of 904	1076	tmp.exe	32
PID 660 wrote to memory of 1556	660	taskeng.exe	35
PID 660 wrote to memory of 1556	660	taskeng.exe	35
PID 660 wrote to memory of 1556	660	taskeng.exe	35
PID 660 wrote to memory of 1556	660	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /CREATE /TN "Windows\IntelComputingTooIklt\IntelPaint2.9.1.0." /TR "C:\ProgramData\MsiBoost\WindowsPaint-Ver2.9.1.0.exe" /SC MINUTE
  2⤵
  - Creates scheduled task(s)
  PID:1672
- C:\Windows\SysWOW64\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoost" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:1792
- C:\Windows\SysWOW64\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoost" /inheritance:e /deny "*S-1-5-7:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:996
- C:\Windows\SysWOW64\icacls.exe
  "C:\Windows\System32\icacls.exe" "C:\ProgramData\MsiBoost" /inheritance:e /deny "admin:(R,REA,RA,RD)"
  2⤵
  - Modifies file permissions
  PID:904

C:\Windows\system32\taskeng.exe
taskeng.exe {72FF6399-B648-47F4-BEA4-6F9A6C0A67B9} S-1-5-21-999675638-2867687379-27515722-1000:ORXGKKZC\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:660
- C:\ProgramData\MsiBoost\WindowsPaint-Ver2.9.1.0.exe
  C:\ProgramData\MsiBoost\WindowsPaint-Ver2.9.1.0.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Checks whether UAC is enabled
  PID:1556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

File and Directory Permissions Modification

1

T1222

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\MsiBoost\WindowsPaint-Ver2.9.1.0.exe

Filesize
820.2MB

MD5
0faa333b2a10bcaccd40813329db9fc5

SHA1
d23e3079412b2bf6b572bd3086a0c9ebe73a96d9

SHA256
5d20d250adede149865315f5aa5d3c9f97898152635e645ea6022685691e6f83

SHA512
c7cfa4b7771006a2188d4f6d470f1fbac39887e8f15f1137f250f73c26d999127f558a0080a780c86e1e3739738bc125720daa665f675e9e3b794a2ce747369f

Download Submit
C:\ProgramData\MsiBoost\WindowsPaint-Ver2.9.1.0.exe

Filesize
726.2MB

MD5
2179d3c41ad2a170abc90118b50cb984

SHA1
4051a76d2072e8585e6f16e21802495450ab360c

SHA256
e9f7b265e2dae9debc8b3eff7bccb1d36a23cdc027394053038947980fca1c6f

SHA512
4c6f1c63d5017c9d62b6f9a3f03ee5a0c15cc832ee43f1826da694be8e64005d5acf3caf321b3b28bba81596ffa3eec8de386feb9136a870f0bcab20237309f2

Download Submit
memory/1076-64-0x0000000001030000-0x00000000013E0000-memory.dmp

Filesize
3.7MB

Download
memory/1076-55-0x0000000001030000-0x00000000013E0000-memory.dmp

Filesize
3.7MB

Download
memory/1076-56-0x0000000001030000-0x00000000013E0000-memory.dmp

Filesize
3.7MB

Download
memory/1076-57-0x0000000001030000-0x00000000013E0000-memory.dmp

Filesize
3.7MB

Download
memory/1076-54-0x0000000076681000-0x0000000076683000-memory.dmp

Filesize
8KB

Download
memory/1076-59-0x0000000001030000-0x00000000013E0000-memory.dmp

Filesize
3.7MB

Download
memory/1556-68-0x0000000000F70000-0x0000000001320000-memory.dmp

Filesize
3.7MB

Download
memory/1556-69-0x0000000000F70000-0x0000000001320000-memory.dmp

Filesize
3.7MB

Download
memory/1556-70-0x0000000000F70000-0x0000000001320000-memory.dmp

Filesize
3.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads