RFQ180584.xlsx

General
Target

RFQ180584.xlsx

Size

2MB

Sample

210421-2b9rd8ygps

Score
10 /10
MD5

e39d819b9e782a42fdf513b228b1a9c4

SHA1

df578ae1999faac459fe83efe6ad1f997db519a8

SHA256

bbceef2cd8724fc87db474357e3e08d064ae4211ec9d7bc8367720794c867bd6

SHA512

75c140a55979dcace9f2cc94796e552539400b9e2a02be756f0a19693c8449b54e039c498a7fd5bf13d4a8f593c8e4a57e4cba7be7f7f440ddfdcc4df9f160bd

Malware Config

Extracted

Family nanocore
Version 1.2.2.0
C2

79.134.225.50:83

nassiru1166.webhop.me:83

Attributes
activate_away_mode
true
backup_connection_host
nassiru1166.webhop.me
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-01-28T23:55:30.477872536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
83
default_group
Me Alone
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
ff5d7452-ecaf-474e-b312-1d34eb4979b2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.50
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

RFQ180584.xlsx

MD5

e39d819b9e782a42fdf513b228b1a9c4

Filesize

2MB

Score
10 /10
SHA1

df578ae1999faac459fe83efe6ad1f997db519a8

SHA256

bbceef2cd8724fc87db474357e3e08d064ae4211ec9d7bc8367720794c867bd6

SHA512

75c140a55979dcace9f2cc94796e552539400b9e2a02be756f0a19693c8449b54e039c498a7fd5bf13d4a8f593c8e4a57e4cba7be7f7f440ddfdcc4df9f160bd

Tags

Signatures

  • NanoCore

    Description

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

    Tags

  • Blocklisted process makes network request

  • Downloads MZ/PE file

  • Executes dropped EXE

  • Loads dropped DLL

  • Uses the VBS compiler for execution

    TTPs

    Scripting
  • Suspicious use of SetThreadContext

Related Tasks

MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
        Exfiltration
          Impact
            Initial Access
              Lateral Movement
                Persistence
                Privilege Escalation
                  Tasks

                  static1

                  behavioral2

                  1/10