General

  • Target

    1e6e62c8c87fd04f18b1024d63bdf9180aa1a94f91e25e1bdc6a4bf17273417f

  • Size

    188KB

  • Sample

    210917-a249qshdak

  • MD5

    28c84323a23c9f92e365372aaf0bf62d

  • SHA1

    900a9a3999f3e77ad061f12d416accb1b0ae78bf

  • SHA256

    1e6e62c8c87fd04f18b1024d63bdf9180aa1a94f91e25e1bdc6a4bf17273417f

  • SHA512

    1fe9c9376a13867c353b76c67c94152615104afae173b3941c5670ba6fc56630a8b210dc7b99b40242ef1a012ffe60e5ed1a0efd329d9b15821c607f0777b8a5

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Mix 1592021

C2

93.115.20.139:28978

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

185.195.79.212:5656

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Extracted

Family

vidar

Version

40.6

Botnet

1015

C2

https://dimonbk83.tumblr.com/

Attributes
  • profile_id

    1015

Extracted

Family

redline

Botnet

log

C2

95.37.95.152:64263

Targets

    • Target

      1e6e62c8c87fd04f18b1024d63bdf9180aa1a94f91e25e1bdc6a4bf17273417f

    • Size

      188KB

    • MD5

      28c84323a23c9f92e365372aaf0bf62d

    • SHA1

      900a9a3999f3e77ad061f12d416accb1b0ae78bf

    • SHA256

      1e6e62c8c87fd04f18b1024d63bdf9180aa1a94f91e25e1bdc6a4bf17273417f

    • SHA512

      1fe9c9376a13867c353b76c67c94152615104afae173b3941c5670ba6fc56630a8b210dc7b99b40242ef1a012ffe60e5ed1a0efd329d9b15821c607f0777b8a5

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Tofsee

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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Windows security bypass

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • xmrig

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

    • Async RAT payload

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

    • Vidar Stealer

    • 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

    • Drops startup file

    • Loads dropped DLL

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • 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

3
T1112

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
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

4
T1005

Tasks