Analysis

  • max time kernel
    140s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    27-07-2021 15:46

General

  • Target

    5fb3fc06922cf2e8d88beb2566b8a1bb.exe

  • Size

    810KB

  • MD5

    5fb3fc06922cf2e8d88beb2566b8a1bb

  • SHA1

    8dfefde2ed3ccc6a27f3d5e3ad873126e54b0103

  • SHA256

    bb8f297b69b83f67d611e5d0fd966efc9116a79598044c02e9a691a30fb7c07d

  • SHA512

    1881a375c1e84157bfc53cead2f7ee59ac3b6598808394ff464e115c27984a05432793028ecfb80dc983376835e187118c7d04de9fb9ee7882d6e65bbfbb9ae1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.ccsp-india.com
  • Port:
    587
  • Username:
    vehicle@ccsp-india.com
  • Password:
    Lkp$CcsP1008

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • 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.

  • 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\5fb3fc06922cf2e8d88beb2566b8a1bb.exe
    "C:\Users\Admin\AppData\Local\Temp\5fb3fc06922cf2e8d88beb2566b8a1bb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Local\Temp\5fb3fc06922cf2e8d88beb2566b8a1bb.exe
      "C:\Users\Admin\AppData\Local\Temp\5fb3fc06922cf2e8d88beb2566b8a1bb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:904

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/904-66-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/904-67-0x000000000043769E-mapping.dmp
  • memory/904-68-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/904-70-0x0000000001360000-0x0000000001361000-memory.dmp
    Filesize

    4KB

  • memory/904-71-0x0000000001361000-0x0000000001362000-memory.dmp
    Filesize

    4KB

  • memory/1200-60-0x00000000013C0000-0x00000000013C1000-memory.dmp
    Filesize

    4KB

  • memory/1200-62-0x0000000004C50000-0x0000000004C51000-memory.dmp
    Filesize

    4KB

  • memory/1200-63-0x00000000005B0000-0x00000000005BB000-memory.dmp
    Filesize

    44KB

  • memory/1200-64-0x0000000005B10000-0x0000000005B92000-memory.dmp
    Filesize

    520KB

  • memory/1200-65-0x0000000000A40000-0x0000000000A7D000-memory.dmp
    Filesize

    244KB