General

  • Target

    file.exe

  • Size

    269KB

  • Sample

    231205-zepm7sfg62

  • MD5

    5ecfaa69dc1970e72f70d0351c5c55eb

  • SHA1

    60535c00fd037ec855c5fcdcbc69b3818feca0d7

  • SHA256

    589e3156476632157530813ae5e67f8b210152f9399201330ecea6a0fc01599d

  • SHA512

    9b97138e71cbe425d306cc50dbac70fceec654c40c730baff71a4647ec646221bee186d02c47bef3ad357881220de5584e3d729c5a2beb542b8730a82d7b5840

  • SSDEEP

    3072:WcYGipGgeWycBrEtuGUeOlyMN1aSef7jXciD0mHeGoZ2d:h3lM3BrWuGQjNTef7rciowe

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://onualituyrs.org/

http://sumagulituyo.org/

http://snukerukeutit.org/

http://lightseinsteniki.org/

http://liuliuoumumy.org/

http://stualialuyastrelia.net/

http://kumbuyartyty.net/

http://criogetikfenbut.org/

http://tonimiuyaytre.org/

http://tyiuiunuewqy.org/

rc4.i32
rc4.i32

Targets

    • Target

      file.exe

    • Size

      269KB

    • MD5

      5ecfaa69dc1970e72f70d0351c5c55eb

    • SHA1

      60535c00fd037ec855c5fcdcbc69b3818feca0d7

    • SHA256

      589e3156476632157530813ae5e67f8b210152f9399201330ecea6a0fc01599d

    • SHA512

      9b97138e71cbe425d306cc50dbac70fceec654c40c730baff71a4647ec646221bee186d02c47bef3ad357881220de5584e3d729c5a2beb542b8730a82d7b5840

    • SSDEEP

      3072:WcYGipGgeWycBrEtuGUeOlyMN1aSef7jXciD0mHeGoZ2d:h3lM3BrWuGQjNTef7rciowe

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Raccoon Stealer V2 payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

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

    • Blocklisted process makes network request

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Executes dropped EXE

    • 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 Microsoft Outlook profiles

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks