Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    file.exe

  • Size

    258KB

  • Sample

    230116-kcemwscb98

  • MD5

    41fd2f0598c3465dac7f618c9fb9e6ab

  • SHA1

    6442aeb994fa61edda5574207f7c4e0c8d149cfc

  • SHA256

    821af69b1a2b6f632623612fea5037d5e79133fa530ff1b800daab60657b8109

  • SHA512

    d15ea74fc7821928ea3c3e92d0599cd460629e4373ca82d4dc0eb48b7bfb93d3355bc4cf98d92f9e36c7b7bc0928af56412c80d480d99871d70c0319455708ec

  • SSDEEP

    6144:MFeIlLGa14PWmIBeDfighEiVWtqtU4zqQna:MFe6aa2PosTHELtqtFP

Score
10/10
lummasmokeloaderbackdoorcollectiondiscoverypersistencespywarestealertrojan

Malware Config

Extracted

Family

lumma

C2

77.73.134.68

Targets

    • Target

      file.exe

    • Size

      258KB

    • MD5

      41fd2f0598c3465dac7f618c9fb9e6ab

    • SHA1

      6442aeb994fa61edda5574207f7c4e0c8d149cfc

    • SHA256

      821af69b1a2b6f632623612fea5037d5e79133fa530ff1b800daab60657b8109

    • SHA512

      d15ea74fc7821928ea3c3e92d0599cd460629e4373ca82d4dc0eb48b7bfb93d3355bc4cf98d92f9e36c7b7bc0928af56412c80d480d99871d70c0319455708ec

    • SSDEEP

      6144:MFeIlLGa14PWmIBeDfighEiVWtqtU4zqQna:MFe6aa2PosTHELtqtFP

    Score
    10/10
    smokeloaderbackdoortrojanlummacollectiondiscoverypersistencespywarestealer

    • Detects Smokeloader packer

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

      stealerlumma

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets DLL path for service in the registry

      persistence

    • Sets service image path in registry

      persistence

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Accesses Microsoft Outlook profiles

      collection

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Checks installed software on the system

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

2
T1005

Email Collection

2
T1114

Exfiltration

Command and Control

Impact

Tasks