Analysis

  • max time kernel
    118s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-04-2024 13:17

General

  • Target

    adminn.scr.exe

  • Size

    864KB

  • MD5

    30f6c45a4b1e83ddcb7cde070f81ce7d

  • SHA1

    68e82e6d01ccb9f15b14a6858aef13710b7eea5e

  • SHA256

    b2485787dd9753b8bd558f63c62c9e234ba5e29a22131545af2a642318f2e0ca

  • SHA512

    83a51516a6443494a1eab57d97daf58e98e6795696e65110692148e3542d6d880a5b0d60a96aea8f11c24ffb4d4ac83488705e40225e4f974a6cee0b20b86d30

  • SSDEEP

    12288:c8pYTbiznIwAfExOC001UtDu3kq8fxL9g5s6+6sGgThgUSD6bQl:HpYqnI/MxOMXurgfohaObQl

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.purplechai.co.ke
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Netanya1@

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adminn.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\adminn.scr.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\adminn.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\adminn.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1072-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-21-0x0000000074430000-0x0000000074B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/1072-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1072-5-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1072-24-0x00000000049D0000-0x0000000004A10000-memory.dmp

    Filesize

    256KB

  • memory/1072-23-0x0000000074430000-0x0000000074B1E000-memory.dmp

    Filesize

    6.9MB

  • memory/1072-22-0x00000000049D0000-0x0000000004A10000-memory.dmp

    Filesize

    256KB

  • memory/1072-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2696-2-0x00000000043C0000-0x0000000004430000-memory.dmp

    Filesize

    448KB

  • memory/2696-18-0x0000000074B20000-0x000000007520E000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-1-0x0000000074B20000-0x000000007520E000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-3-0x00000000049D0000-0x0000000004A10000-memory.dmp

    Filesize

    256KB

  • memory/2696-0-0x0000000000970000-0x0000000000A4E000-memory.dmp

    Filesize

    888KB

  • memory/2696-4-0x00000000004F0000-0x00000000004F8000-memory.dmp

    Filesize

    32KB