Overview

overview

10

Static

static

TBBurmah T...y .exe

windows7_x64

10

TBBurmah T...y .exe

windows10_x64

10

Sharing

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General

  • Target

    TBBurmah Trading Co., Ltd - products inquiry .exe

  • Size

    612KB

  • Sample

    210430-pfva4wrzbe

  • MD5

    28884f9a28c69b5f39f066fef59392cb

  • SHA1

    baf70f81c09d6772337359633f3424a78e3f607e

  • SHA256

    b2454961c84e927b086719e0bae8016bee823e17402fb0feca8bda4e63ff009c

  • SHA512

    9b2938b2d7491febd90d5cd6d431361694b8b17759fe1ec7ba4d0b82486243928f3446a0d916a202617d9b8512fb32951aea5dd7cf045afcd91af8f3ea70a6e6

Score
10/10
nanocoreoskidiscoveryevasioninfostealerkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

oski

C2

31.210.21.181

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.137.22.50:4557

127.0.0.1:4557
Mutex

cbea22e5-f897-4039-a352-cfbfd96fa986

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-01-29T04:25:06.453620736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4557

  • default_group

    chase1

  • 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

    cbea22e5-f897-4039-a352-cfbfd96fa986

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    45.137.22.50

  • 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

      TBBurmah Trading Co., Ltd - products inquiry .exe

    • Size

      612KB

    • MD5

      28884f9a28c69b5f39f066fef59392cb

    • SHA1

      baf70f81c09d6772337359633f3424a78e3f607e

    • SHA256

      b2454961c84e927b086719e0bae8016bee823e17402fb0feca8bda4e63ff009c

    • SHA512

      9b2938b2d7491febd90d5cd6d431361694b8b17759fe1ec7ba4d0b82486243928f3446a0d916a202617d9b8512fb32951aea5dd7cf045afcd91af8f3ea70a6e6

    Score
    10/10
    nanocoreoskidiscoveryevasioninfostealerkeyloggerpersistencespywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Oski

      Oski is an infostealer targeting browser data, crypto wallets.

      infostealeroski

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks