General

  • Target

    831ba3bb4dfd40bf0408d07a186eb216.exe

  • Size

    140KB

  • Sample

    210926-vnszrsfagq

  • MD5

    831ba3bb4dfd40bf0408d07a186eb216

  • SHA1

    adf6f3514edc63b5ce5b91d3bc781a13bb176247

  • SHA256

    f6ede8409878ceb95b88f9cc7064b816568a0be6a933676709152de794173e1a

  • SHA512

    e1c4f66d3aa75dce06993a49bc511cfaae178651b96860114f49df36ff48a5e4f8c7eb8b26a4675b0d53597a103034a7c06f1be7a4d60fdf9638af15c3546da7

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Targets

    • Target

      831ba3bb4dfd40bf0408d07a186eb216.exe

    • Size

      140KB

    • MD5

      831ba3bb4dfd40bf0408d07a186eb216

    • SHA1

      adf6f3514edc63b5ce5b91d3bc781a13bb176247

    • SHA256

      f6ede8409878ceb95b88f9cc7064b816568a0be6a933676709152de794173e1a

    • SHA512

      e1c4f66d3aa75dce06993a49bc511cfaae178651b96860114f49df36ff48a5e4f8c7eb8b26a4675b0d53597a103034a7c06f1be7a4d60fdf9638af15c3546da7

    • Arkei

      Arkei is an infostealer written in C++.

    • Generic Chinese Botnet

      A botnet originating from China which is currently unnamed publicly.

    • 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.

    • suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)

      suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)

    • suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

      suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt

    • xmrig

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

    • Arkei Stealer Payload

    • Chinese Botnet Payload

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

    • 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

    • 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 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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

3
T1005

Tasks