Analysis

  • max time kernel
    105s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2024 17:15

General

  • Target

    SKM_C3350191107102XXX024.exe

  • Size

    1.7MB

  • MD5

    d5249a2a4ede78b1ff3799e6c8b0b0cc

  • SHA1

    d0e4ee560dc2e4a5d71b8c1c3e1626541dafb399

  • SHA256

    a6a4e8b6276ff31b64a3c12858ca9c231972a8c0f12a89c01b4f32d2b95ed200

  • SHA512

    96f65962bace449806e2d522e627ade157327719564e5738473d824334fa571f1aadfbfb3ce4259f92f6636a2ce3cd2545b87b364722955c8cf2d0f0dbe1c927

  • SSDEEP

    24576:VEn+4Y9qBOsb/B9RJ4iju8F4WhH/ks5FDV1Q/JZeP03gus:VE+4YkOAB9RJW8F4M/kKFDVwJZ53C

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6632122066:AAE29XGsmdODIClM9z0ljCY_v_-OdAjdPOM/

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • Kinsing

    Kinsing is a loader written in Golang.

  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKM_C3350191107102XXX024.exe
    "C:\Users\Admin\AppData\Local\Temp\SKM_C3350191107102XXX024.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1624-0-0x0000000074650000-0x0000000074E00000-memory.dmp
    Filesize

    7.7MB

  • memory/1624-1-0x0000000000CB0000-0x0000000000E66000-memory.dmp
    Filesize

    1.7MB

  • memory/1624-2-0x00000000057C0000-0x00000000057D0000-memory.dmp
    Filesize

    64KB

  • memory/1624-3-0x0000000005840000-0x00000000058EA000-memory.dmp
    Filesize

    680KB

  • memory/1624-5-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-4-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-7-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-17-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-25-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-31-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-43-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-55-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-65-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-67-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-63-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-61-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-59-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-57-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-53-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-51-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-49-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-47-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-45-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-41-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-39-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-37-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-35-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-33-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-29-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-27-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-23-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-21-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-19-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-15-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-13-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-11-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-9-0x0000000005840000-0x00000000058E4000-memory.dmp
    Filesize

    656KB

  • memory/1624-936-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/1624-938-0x00000000059A0000-0x00000000059EC000-memory.dmp
    Filesize

    304KB

  • memory/1624-937-0x0000000005960000-0x00000000059A2000-memory.dmp
    Filesize

    264KB

  • memory/1624-939-0x0000000006350000-0x00000000068F4000-memory.dmp
    Filesize

    5.6MB

  • memory/1624-943-0x0000000074650000-0x0000000074E00000-memory.dmp
    Filesize

    7.7MB

  • memory/3760-944-0x0000000074650000-0x0000000074E00000-memory.dmp
    Filesize

    7.7MB

  • memory/3760-945-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3760-947-0x0000000005930000-0x0000000005996000-memory.dmp
    Filesize

    408KB

  • memory/3760-946-0x0000000005920000-0x0000000005930000-memory.dmp
    Filesize

    64KB

  • memory/3760-950-0x0000000006CC0000-0x0000000006D52000-memory.dmp
    Filesize

    584KB

  • memory/3760-949-0x0000000006BD0000-0x0000000006C20000-memory.dmp
    Filesize

    320KB

  • memory/3760-951-0x0000000006C40000-0x0000000006C4A000-memory.dmp
    Filesize

    40KB

  • memory/3760-952-0x0000000074650000-0x0000000074E00000-memory.dmp
    Filesize

    7.7MB

  • memory/3760-953-0x0000000005920000-0x0000000005930000-memory.dmp
    Filesize

    64KB