General

  • Target

    7fa6f7bb0d4329de7b9184e879edcc3c_JaffaCakes118

  • Size

    1.9MB

  • Sample

    240529-f9njvach77

  • MD5

    7fa6f7bb0d4329de7b9184e879edcc3c

  • SHA1

    a7573d8c06dae2bb03ee30ced3ebdfaa68b95248

  • SHA256

    895524a9fd9c55bab5767eaf7a2a1742ab0b41f1a9c549f68b7b0ac640da3113

  • SHA512

    86172b2db0ffd0cf1f1448ddbdb07716b36672b0aa3f4813ce6ceaac6ce85e60372e9399a2fd6af1d05ec289713db2452b7bfee5800930118ff73cd3d38fb049

  • SSDEEP

    24576:8gKKsmIaznKHfsIBDI2COHHTacrLpFQF1D2+IvnP1e:8SKH0Iy2COne2Lo1D2+inU

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.nirvana-voyage.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    intermoB$1

Extracted

Family

nanocore

Version

1.2.2.0

C2

95.217.140.37:1104

Mutex

e5408f25-998f-4f80-8f75-173c98ecf237

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    95.217.140.37

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-02-27T20:20:36.627695536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1104

  • default_group

    Default

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    e5408f25-998f-4f80-8f75-173c98ecf237

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    95.217.140.37

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      img3181-2020-876567.scr

    • Size

      1.3MB

    • MD5

      76aabc4357230893d7c0171d7a088831

    • SHA1

      097b4609dcd3537bd89351d6a90604cf7da4b65d

    • SHA256

      dcc39ce58dfbb4a76b2cc553cd796cb23f0c6b18ec44a3eeef7303d470002139

    • SHA512

      78dcc95267f04be2ad5860aad49b4f64c2fd9157cfed6ca66b672593bc7f35eeedb866b53e607d5cc57258e202af1a0468425ab9c8d5b8cf06a2acd764c89b28

    • SSDEEP

      24576:DgKKsmIaznKHfsIBDI2COHHTacrLpFQF1D2+IvnP1eL:DSKH0Iy2COne2Lo1D2+inUL

    • AgentTesla

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

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • AgentTesla payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks