Analysis

  • max time kernel
    127s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    20-10-2021 11:05

General

  • Target

    Payment slip.exe

  • Size

    428KB

  • MD5

    d85599a4afd0e04420fcaea0e7873608

  • SHA1

    9f6a9f1ebae2a0668b9e25cd58beaaff31d33def

  • SHA256

    28d5e6cd0519719ea136a6227cb4a5d598bf3bef2d317c0edc64bc059feaa3d3

  • SHA512

    71f6aa47ca46d89e9a1187205eeb6cc29d9bc835b7058462889548aeab4c944aac1dc7561237b5f3add1ac1260aae7654ff83115cb51690d7e823c3c3470f3bc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Everest10

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Users\Admin\AppData\Local\Temp\Payment slip.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment slip.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1000

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Replay Monitor

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Downloads

  • memory/1000-124-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1000-132-0x00000000061B0000-0x00000000061B1000-memory.dmp
    Filesize

    4KB

  • memory/1000-131-0x0000000006110000-0x0000000006111000-memory.dmp
    Filesize

    4KB

  • memory/1000-130-0x0000000003000000-0x0000000003001000-memory.dmp
    Filesize

    4KB

  • memory/1000-125-0x0000000000436D3E-mapping.dmp
  • memory/2056-119-0x0000000004F40000-0x0000000004F41000-memory.dmp
    Filesize

    4KB

  • memory/2056-122-0x0000000008900000-0x0000000008901000-memory.dmp
    Filesize

    4KB

  • memory/2056-123-0x0000000008AA0000-0x0000000008AF7000-memory.dmp
    Filesize

    348KB

  • memory/2056-121-0x00000000051A0000-0x00000000051A7000-memory.dmp
    Filesize

    28KB

  • memory/2056-120-0x0000000004F90000-0x000000000548E000-memory.dmp
    Filesize

    5.0MB

  • memory/2056-115-0x0000000000600000-0x0000000000601000-memory.dmp
    Filesize

    4KB

  • memory/2056-118-0x0000000004EA0000-0x0000000004EA1000-memory.dmp
    Filesize

    4KB

  • memory/2056-117-0x0000000005490000-0x0000000005491000-memory.dmp
    Filesize

    4KB