Overview

overview

10

Static

static

8

55f9badb32...21.exe

windows7-x64

10

55f9badb32...21.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 21:04

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General

  • Target

    55f9badb3207ed1867a1da4721c65f4dc284cd4a49968266e530e52b84b2ef21.exe

  • Size

    255KB

  • MD5

    7918565ccd637d96a24b00726bd7646f

  • SHA1

    c5f3ee09d8365c5be1609f61c6c4b6f7627ddbf8

  • SHA256

    55f9badb3207ed1867a1da4721c65f4dc284cd4a49968266e530e52b84b2ef21

  • SHA512

    4ac7823e403a117bf37ba563bf0fdcc091a9d7a8568f7df3a5e983f3fcff2c90ac0a6f4d5cc1837fe8eca75ce6050e77f7a160632e4fc9564e1c0d27693dffde

  • SSDEEP

    3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJg:1xlZam+akqx6YQJXcNlEHUIQeE3mmBI1

Score
10/10
evasionpersistencespywarestealertrojanupx

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
    evasion
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 5 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Executes dropped EXE 5 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Windows security modification 2 TTPs 6 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55f9badb3207ed1867a1da4721c65f4dc284cd4a49968266e530e52b84b2ef21.exe
    "C:\Users\Admin\AppData\Local\Temp\55f9badb3207ed1867a1da4721c65f4dc284cd4a49968266e530e52b84b2ef21.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Windows\SysWOW64\dowlljwlxt.exe
      dowlljwlxt.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\SysWOW64\biqydchu.exe
        C:\Windows\system32\biqydchu.exe
        3⤵
        • Executes dropped EXE
        • Enumerates connected drives
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1048
    • C:\Windows\SysWOW64\wcyqpezrmzsiqcs.exe
      wcyqpezrmzsiqcs.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4844
    • C:\Windows\SysWOW64\biqydchu.exe
      biqydchu.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2424
    • C:\Windows\SysWOW64\ggtghcohwsobb.exe
      ggtghcohwsobb.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2900
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4864

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Winlogon Helper DLL

1
T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2
T1158

Modify Registry

6
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
    Filesize

    255KB

    MD5

    c8ed1ee997f335048814a452b5e59b33

    SHA1

    dcb2c5f831fd6c9dffac99b987e1fe5d720322e8

    SHA256

    d642a076b36fd860cfa28e41e5b1afaed17a7e0e587f24818ea40b4e34088cd3

    SHA512

    3df732575051e7886311436a7c4a92df6694b8444edd0862b8b5048ca77d3160d52d96e846214464a236745dc29eb962b8dba6eea176b9a1ecc885f96f7dae5b

    Download Submit
  • C:\Windows\SysWOW64\biqydchu.exe
    Filesize

    255KB

    MD5

    98cfc3300db0b040b6a3d071610e15f4

    SHA1

    06cd9ac4ed41d37ad8b639faaf1d542d654f4243

    SHA256

    fc7128d214c3a7923fefc195a8613d2deb43aeff927a1cb30fa8fde017e48bd3

    SHA512

    97d61ebd6d83541b1bd97444ad18fca5c2b6ec4ebeb48745a1bf18fa6bfbd734cc9c21f327e42023d2ce9c99a9183d6a6c1aa311cdafde74e24b8a67b69b3eb7

    Download Submit
  • C:\Windows\SysWOW64\biqydchu.exe
    Filesize

    255KB

    MD5

    98cfc3300db0b040b6a3d071610e15f4

    SHA1

    06cd9ac4ed41d37ad8b639faaf1d542d654f4243

    SHA256

    fc7128d214c3a7923fefc195a8613d2deb43aeff927a1cb30fa8fde017e48bd3

    SHA512

    97d61ebd6d83541b1bd97444ad18fca5c2b6ec4ebeb48745a1bf18fa6bfbd734cc9c21f327e42023d2ce9c99a9183d6a6c1aa311cdafde74e24b8a67b69b3eb7

    Download Submit
  • C:\Windows\SysWOW64\biqydchu.exe
    Filesize

    255KB

    MD5

    98cfc3300db0b040b6a3d071610e15f4

    SHA1

    06cd9ac4ed41d37ad8b639faaf1d542d654f4243

    SHA256

    fc7128d214c3a7923fefc195a8613d2deb43aeff927a1cb30fa8fde017e48bd3

    SHA512

    97d61ebd6d83541b1bd97444ad18fca5c2b6ec4ebeb48745a1bf18fa6bfbd734cc9c21f327e42023d2ce9c99a9183d6a6c1aa311cdafde74e24b8a67b69b3eb7

    Download Submit
  • C:\Windows\SysWOW64\dowlljwlxt.exe
    Filesize

    255KB

    MD5

    26eb5f457d0ad0dcb7c28814122b0347

    SHA1

    67cef1aa0c81e6ace5d8a3cc824808c811f9af71

    SHA256

    d2500ec2e12767ccbc42413f8f379d605e93a8d2c3c401c0ffe7de280f77a9d5

    SHA512

    fdc7a426bf68c3bfd33487f9587f60fc45d496c9cd189c23cf63d745c7ce817109caff50671475c6697c3dfe1544c7b740f25db1e02563e81c5dfed22a511687

    Download Submit
  • C:\Windows\SysWOW64\dowlljwlxt.exe
    Filesize

    255KB

    MD5

    26eb5f457d0ad0dcb7c28814122b0347

    SHA1

    67cef1aa0c81e6ace5d8a3cc824808c811f9af71

    SHA256

    d2500ec2e12767ccbc42413f8f379d605e93a8d2c3c401c0ffe7de280f77a9d5

    SHA512

    fdc7a426bf68c3bfd33487f9587f60fc45d496c9cd189c23cf63d745c7ce817109caff50671475c6697c3dfe1544c7b740f25db1e02563e81c5dfed22a511687

    Download Submit
  • C:\Windows\SysWOW64\ggtghcohwsobb.exe
    Filesize

    255KB

    MD5

    d87c4bb3817dab0b2a57fecdbc1bbdfe

    SHA1

    aa0473e338ee5e8f078f8608f6dc18dc986d0409

    SHA256

    08dc403bcb321cf70a82cf0f7a0a9c596d20fba2a4c58821d83d32b2364024d0

    SHA512

    44727eee7fc1670ee8e2e0a0545eb54b01eb5558fe0a737402f3bdcc00f176c37eb2f32a5f559f2ff568949374b845e57d4e945f749f8892c35d681e3c74771e

    Download Submit
  • C:\Windows\SysWOW64\ggtghcohwsobb.exe
    Filesize

    255KB

    MD5

    d87c4bb3817dab0b2a57fecdbc1bbdfe

    SHA1

    aa0473e338ee5e8f078f8608f6dc18dc986d0409

    SHA256

    08dc403bcb321cf70a82cf0f7a0a9c596d20fba2a4c58821d83d32b2364024d0

    SHA512

    44727eee7fc1670ee8e2e0a0545eb54b01eb5558fe0a737402f3bdcc00f176c37eb2f32a5f559f2ff568949374b845e57d4e945f749f8892c35d681e3c74771e

    Download Submit
  • C:\Windows\SysWOW64\wcyqpezrmzsiqcs.exe
    Filesize

    255KB

    MD5

    446a60af8c4efb79822366917bd05ad4

    SHA1

    7a4684515d5fcc1504c07def4489bce89711d8cb

    SHA256

    dc6d43cb709defee5218730dff7d0840bb486a074c751caeab684e9f19918add

    SHA512

    1da1b61480f4cb70094b1bcd6da4208036fa27933e8fe615ae95d8151f290f38133f65b8196ac3db6e0176e69a194361a75e4c3c87e1819f5e01d66f8889d872

    Download Submit
  • C:\Windows\SysWOW64\wcyqpezrmzsiqcs.exe
    Filesize

    255KB

    MD5

    446a60af8c4efb79822366917bd05ad4

    SHA1

    7a4684515d5fcc1504c07def4489bce89711d8cb

    SHA256

    dc6d43cb709defee5218730dff7d0840bb486a074c751caeab684e9f19918add

    SHA512

    1da1b61480f4cb70094b1bcd6da4208036fa27933e8fe615ae95d8151f290f38133f65b8196ac3db6e0176e69a194361a75e4c3c87e1819f5e01d66f8889d872

    Download Submit
  • C:\Windows\mydoc.rtf
    Filesize

    223B

    MD5

    06604e5941c126e2e7be02c5cd9f62ec

    SHA1

    4eb9fdf8ff4e1e539236002bd363b82c8f8930e1

    SHA256

    85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2

    SHA512

    803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7

    Download Submit
  • \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
    Filesize

    255KB

    MD5

    1c1d99e8487018f427b996826d74febd

    SHA1

    83c7ea450371a608af5d30632ac9ee93abbe0270

    SHA256

    4b1e9db2c735a68eed1d902eb586e1f587cbd0289304090ece05e7eea303deb6

    SHA512

    4a0685e22204e341ad2609e83687c9b47e62e0eab346b5774ad5929d16e4c74d4a8d4fd8e9fd9df89b4d51aaae5930c9c0b7a027e57859e8809cb3d6710f84a6

    Download Submit
  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
    Filesize

    255KB

    MD5

    f3f516dff2ecdcf07536dc421caf5a2a

    SHA1

    8103b9b5ffeef7c7e38e4e13488b7562b1c896da

    SHA256

    a29d809e0c7f6c29690e2f934d4d33faa6a77dc7ff2958e8a6f4e007055eab72

    SHA512

    e3006544d29544bbff08bf29a5fb82c47ee4889ad3d006308756842572bd19e08c7f67dd4274040e8598547a3984fe537e0a42139f61677c0f75fc183d1cfee1

    Download Submit
  • \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
    Filesize

    255KB

    MD5

    ae2c47066856a3aac1348d03a436c656

    SHA1

    5d6088af1709bc7a28d192514c653d3c43515c6c

    SHA256

    41dbd270411a8c23254b5a2f7b6c2c67feb8db44434b7096f63f20a83208c922

    SHA512

    2f859f28e3cf2c571df12cae05b405d5810304e2af4099f50395b3822a5d936b186101c6c0613a317b635402b7ce05486a7ca3e1e33ed46bc46596218c151f2b

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  • memory/1048-167-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/1048-153-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/1048-149-0x0000000000000000-mapping.dmp
    Download
  • memory/2276-132-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/2276-152-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/2424-139-0x0000000000000000-mapping.dmp
    Download
  • memory/2424-147-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/2424-165-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/2900-148-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/2900-142-0x0000000000000000-mapping.dmp
    Download
  • memory/2900-166-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/3376-163-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/3376-145-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/3376-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4844-146-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/4844-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4844-164-0x0000000000400000-0x00000000004A0000-memory.dmp
    Filesize

    640KB

    Download
  • memory/4864-154-0x00007FF8E3A30000-0x00007FF8E3A40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-162-0x00007FF8E1100000-0x00007FF8E1110000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-161-0x00007FF8E1100000-0x00007FF8E1110000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-158-0x00007FF8E3A30000-0x00007FF8E3A40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-157-0x00007FF8E3A30000-0x00007FF8E3A40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-156-0x00007FF8E3A30000-0x00007FF8E3A40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-155-0x00007FF8E3A30000-0x00007FF8E3A40000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4864-151-0x0000000000000000-mapping.dmp
    Download