Analysis

  • max time kernel
    117s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 11:47

General

  • Target

    file.exe

  • Size

    208KB

  • MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

  • SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

  • SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

  • SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

  • SSDEEP

    3072:+PdWwqAPIilDvJOXW5QUuk6fPL3o8xmmX0RCNdkjwx3PxFJV9qcZFI6NP:0+cbJODeshxl08DRxfxFRhZFnt

Malware Config

Extracted

Family

amadey

Version

3.50

C2

31.41.244.17/hfk3vK9/index.php

Signatures

  • Amadey

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

  • Detect Amadey credential stealer module 5 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1456
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1704
      • 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:916
      • 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:1488
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {EEDC4433-E593-4444-9B5A-8B899883D4F1} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:288
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1888
    • C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe
      2⤵
      • Executes dropped EXE
      PID:1960

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

System Information Discovery

1
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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    126KB

    MD5

    adbaf286228c46522e50371c4be31a03

    SHA1

    a29d644c4663b2e2b2bd92046ba0df629537c297

    SHA256

    d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

    SHA512

    74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    208KB

    MD5

    3e21f9049be03c7dd0bb1d9b18f38e89

    SHA1

    e66aecadddce4cfd1188fbef5c46345dd9216604

    SHA256

    15a925076bfe22876522e2042abc851c01a70ec4eff001caf63241f68a87c5f1

    SHA512

    bf1b6dcc9d783e3e67e0f33ea67dbb8d33a8544b9ee813eb27b2ef3902c3644e11c590c31db7ed29baa1ac8278f5ef21bcdab93ecf26d0b9ec653c0c7b734f47

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

    126KB

    MD5

    adbaf286228c46522e50371c4be31a03

    SHA1

    a29d644c4663b2e2b2bd92046ba0df629537c297

    SHA256

    d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

    SHA512

    74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

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

    126KB

    MD5

    adbaf286228c46522e50371c4be31a03

    SHA1

    a29d644c4663b2e2b2bd92046ba0df629537c297

    SHA256

    d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

    SHA512

    74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

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

    126KB

    MD5

    adbaf286228c46522e50371c4be31a03

    SHA1

    a29d644c4663b2e2b2bd92046ba0df629537c297

    SHA256

    d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

    SHA512

    74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

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

    126KB

    MD5

    adbaf286228c46522e50371c4be31a03

    SHA1

    a29d644c4663b2e2b2bd92046ba0df629537c297

    SHA256

    d3e9a3365f73a34e2dd9022a318abcc2c55af98bafb2dc302cbb55f5398bb9a0

    SHA512

    74a55cc8d8c3af54e5ba290a34b968918da994ea2d55b5f0d1f39e83cb9a39d73226227933c760b48f2e0bdb646f8243967517ef8202e02d88411d2d19ae217d

  • memory/916-63-0x0000000000000000-mapping.dmp
  • memory/1456-60-0x0000000000230000-0x000000000026E000-memory.dmp
    Filesize

    248KB

  • memory/1456-61-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/1456-54-0x0000000075B51000-0x0000000075B53000-memory.dmp
    Filesize

    8KB

  • memory/1456-59-0x000000000062D000-0x000000000064C000-memory.dmp
    Filesize

    124KB

  • memory/1488-68-0x0000000000000000-mapping.dmp
  • memory/1704-57-0x0000000000000000-mapping.dmp
  • memory/1704-67-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/1704-66-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/1704-65-0x000000000051D000-0x000000000053C000-memory.dmp
    Filesize

    124KB

  • memory/1888-75-0x0000000000000000-mapping.dmp
  • memory/1888-79-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/1888-78-0x00000000005DD000-0x00000000005FC000-memory.dmp
    Filesize

    124KB

  • memory/1960-80-0x0000000000000000-mapping.dmp
  • memory/1960-83-0x000000000062D000-0x000000000064C000-memory.dmp
    Filesize

    124KB

  • memory/1960-84-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB