Analysis

  • max time kernel
    151s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:51

General

  • Target

    3999b02a5ea3296196d635345d1641e8e5b294de86df15b4c7877442fe2ec840.exe

  • Size

    244KB

  • MD5

    353631c7e3686b6aba08dcab28849013

  • SHA1

    0e0054e1175f1119e44aa71f94ad9b059c207338

  • SHA256

    3999b02a5ea3296196d635345d1641e8e5b294de86df15b4c7877442fe2ec840

  • SHA512

    48f3577e731cf6b984b8602241eba4855a7dd2846a76e527d347a5c55ea49b3927d8ae0eff285b93c1b586696db5a6a9dde0b44652800d7b9f8386af94e1d469

  • SSDEEP

    6144:oHAn9UvAqXDdJZRx8zm/4Q7OkkXJLbg4xK4laa:Pn9UvxXDdJZRx8zm/4Q7OksJLbg4x

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 53 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3999b02a5ea3296196d635345d1641e8e5b294de86df15b4c7877442fe2ec840.exe
    "C:\Users\Admin\AppData\Local\Temp\3999b02a5ea3296196d635345d1641e8e5b294de86df15b4c7877442fe2ec840.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Users\Admin\hihav.exe
      "C:\Users\Admin\hihav.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:784

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\hihav.exe
    Filesize

    244KB

    MD5

    d2eb0a663da56b25513d3de2adbe4850

    SHA1

    ec2a6df23e8c6b8c015ee69db6b3aa0363235817

    SHA256

    45ac478fc074f400d480fcca80d2daf6cd154ab4935be090b824e313f3aa6bcc

    SHA512

    68ff6d643768c3602118273e6d61d27f19abdadba2b703bd0446b881feea03c767ed85a03bbd5b682d9bf167da7f814ac1a766e471359513e470529ec079c7f7

  • C:\Users\Admin\hihav.exe
    Filesize

    244KB

    MD5

    d2eb0a663da56b25513d3de2adbe4850

    SHA1

    ec2a6df23e8c6b8c015ee69db6b3aa0363235817

    SHA256

    45ac478fc074f400d480fcca80d2daf6cd154ab4935be090b824e313f3aa6bcc

    SHA512

    68ff6d643768c3602118273e6d61d27f19abdadba2b703bd0446b881feea03c767ed85a03bbd5b682d9bf167da7f814ac1a766e471359513e470529ec079c7f7

  • \Users\Admin\hihav.exe
    Filesize

    244KB

    MD5

    d2eb0a663da56b25513d3de2adbe4850

    SHA1

    ec2a6df23e8c6b8c015ee69db6b3aa0363235817

    SHA256

    45ac478fc074f400d480fcca80d2daf6cd154ab4935be090b824e313f3aa6bcc

    SHA512

    68ff6d643768c3602118273e6d61d27f19abdadba2b703bd0446b881feea03c767ed85a03bbd5b682d9bf167da7f814ac1a766e471359513e470529ec079c7f7

  • \Users\Admin\hihav.exe
    Filesize

    244KB

    MD5

    d2eb0a663da56b25513d3de2adbe4850

    SHA1

    ec2a6df23e8c6b8c015ee69db6b3aa0363235817

    SHA256

    45ac478fc074f400d480fcca80d2daf6cd154ab4935be090b824e313f3aa6bcc

    SHA512

    68ff6d643768c3602118273e6d61d27f19abdadba2b703bd0446b881feea03c767ed85a03bbd5b682d9bf167da7f814ac1a766e471359513e470529ec079c7f7

  • memory/784-59-0x0000000000000000-mapping.dmp
  • memory/1788-56-0x0000000075B11000-0x0000000075B13000-memory.dmp
    Filesize

    8KB