Analysis

  • max time kernel
    191s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 16:36

General

  • Target

    94b61d944de4da19ac484a97f686e831.exe

  • Size

    241KB

  • MD5

    94b61d944de4da19ac484a97f686e831

  • SHA1

    d966b6a477aa16a8a9aa9483557145ae02d718d2

  • SHA256

    605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559

  • SHA512

    cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53

  • SSDEEP

    6144:H5dzwO5jJFSIijqVSS8LfZujp8DqqRLuu:HZkqx8Nujp+qq0u

Malware Config

Extracted

Family

amadey

Version

3.50

C2

31.41.244.167/v7eWcjs/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Detect Amadey credential stealer module 2 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\94b61d944de4da19ac484a97f686e831.exe
    "C:\Users\Admin\AppData\Local\Temp\94b61d944de4da19ac484a97f686e831.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4248
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1524
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F
        3⤵
        • Creates scheduled task(s)
        PID:3460
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • outlook_win_path
        PID:2824
  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    1⤵
    • Executes dropped EXE
    PID:4116
  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    1⤵
    • Executes dropped EXE
    PID:3800

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    Filesize

    241KB

    MD5

    94b61d944de4da19ac484a97f686e831

    SHA1

    d966b6a477aa16a8a9aa9483557145ae02d718d2

    SHA256

    605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559

    SHA512

    cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53

  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    Filesize

    241KB

    MD5

    94b61d944de4da19ac484a97f686e831

    SHA1

    d966b6a477aa16a8a9aa9483557145ae02d718d2

    SHA256

    605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559

    SHA512

    cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53

  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    Filesize

    241KB

    MD5

    94b61d944de4da19ac484a97f686e831

    SHA1

    d966b6a477aa16a8a9aa9483557145ae02d718d2

    SHA256

    605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559

    SHA512

    cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53

  • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
    Filesize

    241KB

    MD5

    94b61d944de4da19ac484a97f686e831

    SHA1

    d966b6a477aa16a8a9aa9483557145ae02d718d2

    SHA256

    605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559

    SHA512

    cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53

  • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
    Filesize

    126KB

    MD5

    aebf8cd9ea982decded5ee6f3777c6d7

    SHA1

    406e723158cd5697503d1d04839d3bc7a5051603

    SHA256

    104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62

    SHA512

    f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981

  • C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll
    Filesize

    126KB

    MD5

    aebf8cd9ea982decded5ee6f3777c6d7

    SHA1

    406e723158cd5697503d1d04839d3bc7a5051603

    SHA256

    104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62

    SHA512

    f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981

  • memory/1524-132-0x0000000000000000-mapping.dmp
  • memory/2824-137-0x0000000000000000-mapping.dmp
  • memory/3460-135-0x0000000000000000-mapping.dmp