General

  • Target

    32f58e6ebbd28b5815fb2ffbfd9f4a5a794801e3a54effbf77ca4eb75ce629cd

  • Size

    364KB

  • Sample

    220104-rc1npaahfn

  • MD5

    3a1b06d948dcfa3a7b3c6bba8734d469

  • SHA1

    f3a277ae7e1a14aa84c3d408c7f6533b789bf479

  • SHA256

    32f58e6ebbd28b5815fb2ffbfd9f4a5a794801e3a54effbf77ca4eb75ce629cd

  • SHA512

    33842a635b900f5657ae11b8be63f73262bf83c0241cb23dd99ddfd75d9e8c5adb137bf24869cc3ea059b45a4aaa6adc079ee884e1fd8ec3f428cfad82b260ab

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

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

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

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
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

      32f58e6ebbd28b5815fb2ffbfd9f4a5a794801e3a54effbf77ca4eb75ce629cd

    • Size

      364KB

    • MD5

      3a1b06d948dcfa3a7b3c6bba8734d469

    • SHA1

      f3a277ae7e1a14aa84c3d408c7f6533b789bf479

    • SHA256

      32f58e6ebbd28b5815fb2ffbfd9f4a5a794801e3a54effbf77ca4eb75ce629cd

    • SHA512

      33842a635b900f5657ae11b8be63f73262bf83c0241cb23dd99ddfd75d9e8c5adb137bf24869cc3ea059b45a4aaa6adc079ee884e1fd8ec3f428cfad82b260ab

    • 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 Known Sinkhole Response Header

      suricata: ET MALWARE Known Sinkhole Response Header

    • 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

    • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

      suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    • 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