Resubmissions

14-08-2021 14:17

210814-4bn8wpf1gn 10

13-08-2021 11:30

210813-p9th339s3n 10

13-08-2021 08:25

210813-r8b8p3d9v6 10

General

  • Target

    2a0c06cec3ab6b1f26e0f6574f25f0cc.exe

  • Size

    179KB

  • Sample

    210813-r8b8p3d9v6

  • MD5

    2a0c06cec3ab6b1f26e0f6574f25f0cc

  • SHA1

    048a78112e33d2c9baf547b9481b0d9a6afefc30

  • SHA256

    46fc72077df7ddc1d3e744d3ebf8e48fb1814e242694970c1c5c3481b696a4b1

  • SHA512

    bcca037c7a126f60e118e67b9e5910271caed2af17b012055bbf8aac27c328713f25fea7a3d9ce6605de5a3c5125951711ef21eaa9a621d982833571864c93cc

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

471c70de3b4f9e4d493e418d1f60a90659057de0

Attributes
  • url4cnc

    https://telete.in/p1rosto100xx

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

cd8dc1031358b1aec55cc6bc447df1018b068607

Attributes
  • url4cnc

    https://telete.in/jagressor_kz

rc4.plain
rc4.plain

Targets

    • Target

      2a0c06cec3ab6b1f26e0f6574f25f0cc.exe

    • Size

      179KB

    • MD5

      2a0c06cec3ab6b1f26e0f6574f25f0cc

    • SHA1

      048a78112e33d2c9baf547b9481b0d9a6afefc30

    • SHA256

      46fc72077df7ddc1d3e744d3ebf8e48fb1814e242694970c1c5c3481b696a4b1

    • SHA512

      bcca037c7a126f60e118e67b9e5910271caed2af17b012055bbf8aac27c328713f25fea7a3d9ce6605de5a3c5125951711ef21eaa9a621d982833571864c93cc

    • Detected phishing page

    • Modifies Windows Defender Real-time Protection settings

    • 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.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateProcessExOtherParentProcess

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • 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 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 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.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks