Overview

overview

10

Static

static

1

a2a5b77b07...4f.exe

windows7-x64

10

a2a5b77b07...4f.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a2a5b77b07d83496073fc3613aa7384f.exe

  • Size

    270KB

  • Sample

    230328-wf94raea2x

  • MD5

    a2a5b77b07d83496073fc3613aa7384f

  • SHA1

    6dbf458de23eff5b42f43c8c7ac685517ebb0286

  • SHA256

    3fcf17a312da09e7d7cb7a69b3575e791de5494420eb99e7bd00f6a63cb40988

  • SHA512

    4cb73542d6621ae23e29c084919d38cc5322693c6d553111a70f7685fc6e3fa6fcf12100bdf012f659a74a977cceef606b5a2851be4d5ff96622f5f63fa20d03

  • SSDEEP

    3072:RrJQF/YTMuU2y2fAS8vPVC/a6w1H1yTBJazm4fHQcaBeylmhZ:feYHU2zfA31MTDazmoHc+

Score
10/10
smokeloaderpub4backdoorcollectiondiscoverypersistencespywarestealertrojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Extracted

Family

smokeloader

Version

2022

C2

http://aapu.at/tmp/

http://poudineh.com/tmp/

http://firsttrusteedrx.ru/tmp/

http://kingpirate.ru/tmp/
rc4.i32
rc4.i32

Targets

    • Target

      a2a5b77b07d83496073fc3613aa7384f.exe

    • Size

      270KB

    • MD5

      a2a5b77b07d83496073fc3613aa7384f

    • SHA1

      6dbf458de23eff5b42f43c8c7ac685517ebb0286

    • SHA256

      3fcf17a312da09e7d7cb7a69b3575e791de5494420eb99e7bd00f6a63cb40988

    • SHA512

      4cb73542d6621ae23e29c084919d38cc5322693c6d553111a70f7685fc6e3fa6fcf12100bdf012f659a74a977cceef606b5a2851be4d5ff96622f5f63fa20d03

    • SSDEEP

      3072:RrJQF/YTMuU2y2fAS8vPVC/a6w1H1yTBJazm4fHQcaBeylmhZ:feYHU2zfA31MTDazmoHc+

    Score
    10/10
    smokeloaderpub4backdoortrojancollectiondiscoverypersistencespywarestealer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Sets DLL path for service in the registry

      persistence

    • Sets service image path in registry

      persistence

    • 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.

      spywarestealer

    • Accesses Microsoft Outlook accounts

      collection

    • Accesses Microsoft Outlook profiles

      collection

    • 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

1
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Email Collection

2
T1114

Exfiltration

Command and Control

Impact

Tasks