1e40bce6e476e4c0485b3f813cff5d493b1e07f52a89b56a31765529b809ea33

Resubmissions

28/08/2020, 12:47 UTC

200828-nd915gcv5n 8

28/08/2020, 12:45 UTC

200828-q7w77zyk92 8

28/08/2020, 12:39 UTC

200828-h3kmc18276 8

Analysis

max time kernel
87s
max time network
21s
platform
windows7_x64
resource
win7v200722
submitted
28/08/2020, 12:47 UTC

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General

Target

myfile.exe
Size

4.3MB
MD5

0a438448cebd370318b5294775e2405c
SHA1

60abd37bf94ee406653af60e5b72f1f69f646308
SHA256

1e40bce6e476e4c0485b3f813cff5d493b1e07f52a89b56a31765529b809ea33
SHA512

dc21a068d6aa3ce93a399d2b636a4dc17fd9b2f60c921eaadaef4eb0049c4ef5d1c09479c906660d0fa7bb7e688cdae54a36d9e73e35ac209e469a862c992976

Score

8^/10

ransomware

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
1812	HexInformation.exe
1800	HexDecryptor.exe
732	HexLocker.exe
844	WindowsSystemTools.exe

Loads dropped DLL 1 IoCs

pid	Process
1040	cmd.exe

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wl.jpg"	HexLocker.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\Desktop\Wallpaper = "C:\\Windows\\Web\\Wallpaper\\Windows\\img0.jpg"	WindowsSystemTools.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\Desktop	WindowsSystemTools.exe
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Control Panel\Desktop	HexLocker.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1492	POWERPNT.EXE

Suspicious behavior: CmdExeWriteProcessMemorySpam 3 IoCs

pid	Process
1812	HexInformation.exe
1800	HexDecryptor.exe
732	HexLocker.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1812	HexInformation.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1492	POWERPNT.EXE

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1332 wrote to memory of 1056	1332	myfile.exe	25
PID 1332 wrote to memory of 1056	1332	myfile.exe	25
PID 1332 wrote to memory of 1056	1332	myfile.exe	25
PID 1332 wrote to memory of 1056	1332	myfile.exe	25
PID 1056 wrote to memory of 1704	1056	cmd.exe	27
PID 1056 wrote to memory of 1704	1056	cmd.exe	27
PID 1056 wrote to memory of 1704	1056	cmd.exe	27
PID 1056 wrote to memory of 1356	1056	cmd.exe	28
PID 1056 wrote to memory of 1356	1056	cmd.exe	28
PID 1056 wrote to memory of 1356	1056	cmd.exe	28
PID 1056 wrote to memory of 1784	1056	cmd.exe	29
PID 1056 wrote to memory of 1784	1056	cmd.exe	29
PID 1056 wrote to memory of 1784	1056	cmd.exe	29
PID 1056 wrote to memory of 1756	1056	cmd.exe	30
PID 1056 wrote to memory of 1756	1056	cmd.exe	30
PID 1056 wrote to memory of 1756	1056	cmd.exe	30
PID 1056 wrote to memory of 1820	1056	cmd.exe	31
PID 1056 wrote to memory of 1820	1056	cmd.exe	31
PID 1056 wrote to memory of 1820	1056	cmd.exe	31
PID 1056 wrote to memory of 1812	1056	cmd.exe	32
PID 1056 wrote to memory of 1812	1056	cmd.exe	32
PID 1056 wrote to memory of 1812	1056	cmd.exe	32
PID 1056 wrote to memory of 1812	1056	cmd.exe	32
PID 1056 wrote to memory of 1800	1056	cmd.exe	33
PID 1056 wrote to memory of 1800	1056	cmd.exe	33
PID 1056 wrote to memory of 1800	1056	cmd.exe	33
PID 1056 wrote to memory of 1800	1056	cmd.exe	33
PID 1056 wrote to memory of 732	1056	cmd.exe	35
PID 1056 wrote to memory of 732	1056	cmd.exe	35
PID 1056 wrote to memory of 732	1056	cmd.exe	35
PID 1056 wrote to memory of 732	1056	cmd.exe	35
PID 1800 wrote to memory of 1040	1800	HexDecryptor.exe	36
PID 1800 wrote to memory of 1040	1800	HexDecryptor.exe	36
PID 1800 wrote to memory of 1040	1800	HexDecryptor.exe	36
PID 1800 wrote to memory of 1040	1800	HexDecryptor.exe	36
PID 1040 wrote to memory of 844	1040	cmd.exe	41
PID 1040 wrote to memory of 844	1040	cmd.exe	41
PID 1040 wrote to memory of 844	1040	cmd.exe	41
PID 1040 wrote to memory of 844	1040	cmd.exe	41

C:\Users\Admin\AppData\Local\Temp\myfile.exe
"C:\Users\Admin\AppData\Local\Temp\myfile.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1332
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\ABE9.tmp\ABEA.tmp\ABEB.bat C:\Users\Admin\AppData\Local\Temp\myfile.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\system32\tree.com
    tree
    3⤵
    PID:1704
- - C:\Windows\system32\tree.com
    tree
    3⤵
    PID:1356
- - C:\Windows\system32\tree.com
    tree
    3⤵
    PID:1784
- - C:\Windows\system32\tree.com
    tree
    3⤵
    PID:1756
- - C:\Windows\system32\tree.com
    tree
    3⤵
    PID:1820
- - C:\Users\Admin\Desktop\HexInformation.exe
    HexInformation.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious use of FindShellTrayWindow
    PID:1812
- - C:\Users\Admin\Desktop\HexDecryptor.exe
    HexDecryptor.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious use of WriteProcessMemory
    PID:1800
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd" /c "C:\Users\Admin\AppData\Local\Temp\B24F.tmp\B250.tmp\B260.bat C:\Users\Admin\Desktop\HexDecryptor.exe"
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1040
    - - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WindowsSystemTools.exe
        
        WindowsSystemTools.exe
        5⤵
        Executes dropped EXE
        Sets desktop wallpaper using registry
        Modifies Control Panel
        
        PID:844
- - C:\Users\Admin\Desktop\HexLocker.exe
    HexLocker.exe
    3⤵
    - Executes dropped EXE
    - Sets desktop wallpaper using registry
    - Modifies Control Panel
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    PID:732

C:\Program Files\Microsoft Office\Office14\POWERPNT.EXE
"C:\Program Files\Microsoft Office\Office14\POWERPNT.EXE" /s "C:\Users\Admin\Desktop\Fixed.UnlockPublish.ppsx"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1492

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact