General

  • Target

    df6bb1fd3a81209ba03007ef779b8fdeb8c038e41b922a843656a553fc54471e

  • Size

    298KB

  • Sample

    220105-pnhk5safbn

  • MD5

    3bad21af1bf581216fe325b6e20c56e3

  • SHA1

    ae90585a5d7c194acc0efd1e4b0b12e08a47139a

  • SHA256

    df6bb1fd3a81209ba03007ef779b8fdeb8c038e41b922a843656a553fc54471e

  • SHA512

    8256b8fc47cfd05395aa72433fbf2cf4cc0f3332d091272789dfe0e1ce2ea85c8355544e49da3ddb590c359c7227d96820fbdcd0ecf02018718095145654c06e

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Extracted

Family

raccoon

Botnet

10da56e7e71e97bdc1f36eb76813bbc3231de7e4

Attributes
  • url4cnc

    http://194.180.174.53/capibar

    http://91.219.236.18/capibar

    http://194.180.174.41/capibar

    http://91.219.236.148/capibar

    https://t.me/capibar

rc4.plain
rc4.plain

Targets

    • Target

      df6bb1fd3a81209ba03007ef779b8fdeb8c038e41b922a843656a553fc54471e

    • Size

      298KB

    • MD5

      3bad21af1bf581216fe325b6e20c56e3

    • SHA1

      ae90585a5d7c194acc0efd1e4b0b12e08a47139a

    • SHA256

      df6bb1fd3a81209ba03007ef779b8fdeb8c038e41b922a843656a553fc54471e

    • SHA512

      8256b8fc47cfd05395aa72433fbf2cf4cc0f3332d091272789dfe0e1ce2ea85c8355544e49da3ddb590c359c7227d96820fbdcd0ecf02018718095145654c06e

    • Arkei

      Arkei is an infostealer written in C++.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • Windows security bypass

    • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

      suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Arkei Stealer Payload

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • XMRig Miner Payload

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks