General

  • Target

    27f8a512e8c010f338893076c00bb848.exe

  • Size

    179KB

  • Sample

    210814-45kkmfex32

  • MD5

    27f8a512e8c010f338893076c00bb848

  • SHA1

    bb8bc6f7f277ebdae7e84895c621b15a1876eee5

  • SHA256

    6af4561fbac47bfe47db9d90beda964637aab451521caea9a2e60e1806d96c48

  • SHA512

    d8001e276d22126cacce510bac8676e9275cd408e904ece1ad153ad42def20adf032caf55637189a005c8f5b981671e5b7f36afbe1917129eb06e6cededee6ff

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://193.56.146.55/Api/GetFile2

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforjuly1.xyz/

http://readinglistforjuly2.xyz/

http://readinglistforjuly3.xyz/

http://readinglistforjuly4.xyz/

http://readinglistforjuly5.xyz/

http://readinglistforjuly6.xyz/

http://readinglistforjuly7.xyz/

http://readinglistforjuly8.xyz/

http://readinglistforjuly9.xyz/

http://readinglistforjuly10.xyz/

http://readinglistforjuly1.site/

http://readinglistforjuly2.site/

http://readinglistforjuly3.site/

http://readinglistforjuly4.site/

http://readinglistforjuly5.site/

http://readinglistforjuly6.site/

http://readinglistforjuly7.site/

http://readinglistforjuly8.site/

http://readinglistforjuly9.site/

http://readinglistforjuly10.site/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

cd8dc1031358b1aec55cc6bc447df1018b068607

Attributes
  • url4cnc

    https://telete.in/jagressor_kz

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

MIX#13.08

C2

qusshedrni.xyz:80

Extracted

Family

raccoon

Botnet

471c70de3b4f9e4d493e418d1f60a90659057de0

Attributes
  • url4cnc

    https://telete.in/p1rosto100xx

rc4.plain
rc4.plain

Extracted

Family

vidar

Version

40

Botnet

936

C2

https://lenak513.tumblr.com/

Attributes
  • profile_id

    936

Targets

    • Target

      27f8a512e8c010f338893076c00bb848.exe

    • Size

      179KB

    • MD5

      27f8a512e8c010f338893076c00bb848

    • SHA1

      bb8bc6f7f277ebdae7e84895c621b15a1876eee5

    • SHA256

      6af4561fbac47bfe47db9d90beda964637aab451521caea9a2e60e1806d96c48

    • SHA512

      d8001e276d22126cacce510bac8676e9275cd408e904ece1ad153ad42def20adf032caf55637189a005c8f5b981671e5b7f36afbe1917129eb06e6cededee6ff

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • Raccoon Stealer Payload

    • 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.

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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 Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

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

    • 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 Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • DCRat Payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Vidar Stealer

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

4
T1005

Tasks