General

  • Target

    fb45ecbfb0e13b103b6b1c583479a21d.exe

  • Size

    128KB

  • Sample

    210927-v1z9lsheg4

  • MD5

    fb45ecbfb0e13b103b6b1c583479a21d

  • SHA1

    9cb9eead55f3b3f4847fd8f1bdd8d20ca46d9dc2

  • SHA256

    d0426ed95048ec08395edddaaa1d3ccc7a3f769d4324195e1f075b16f462a4c6

  • SHA512

    1969648cb590e6c71fcf0391003ce56d22472f01105d9e3fab9e3acbacb687dde8cf0ca01c26b862ee7cf582d8b5605b91b82011f9cc061e3500ef8390570889

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

raketa

C2

45.144.29.94:61419

Extracted

Family

redline

Botnet

instashop

C2

185.92.74.142:80

Extracted

Family

redline

Botnet

@DCM4Gentoo

C2

138.124.186.42:14462

Extracted

Family

redline

Botnet

vol4

C2

92.222.145.232:61157

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Targets

    • Target

      fb45ecbfb0e13b103b6b1c583479a21d.exe

    • Size

      128KB

    • MD5

      fb45ecbfb0e13b103b6b1c583479a21d

    • SHA1

      9cb9eead55f3b3f4847fd8f1bdd8d20ca46d9dc2

    • SHA256

      d0426ed95048ec08395edddaaa1d3ccc7a3f769d4324195e1f075b16f462a4c6

    • SHA512

      1969648cb590e6c71fcf0391003ce56d22472f01105d9e3fab9e3acbacb687dde8cf0ca01c26b862ee7cf582d8b5605b91b82011f9cc061e3500ef8390570889

    • Arkei

      Arkei is an infostealer written in C++.

    • Modifies WinLogon for persistence

    • 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.

    • Windows security bypass

    • 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

    • 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 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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Tasks