Overview

overview

10

Static

static

8

4aabef3c41...b7.exe

windows7_x64

10

4aabef3c41...b7.exe

windows10_x64

10

Sharing

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General

  • Target

    4aabef3c4153063a555f60c681a4ec20137548c30f4713f1a7306dd089dac0b7

  • Size

    1.1MB

  • Sample

    210301-nxtvny5m4a

  • MD5

    f93f9a5a5e3a079609a57efb47bfc9cf

  • SHA1

    e32acecc130be16b519c419a409d2576df8d73d0

  • SHA256

    4aabef3c4153063a555f60c681a4ec20137548c30f4713f1a7306dd089dac0b7

  • SHA512

    582888483e60c5752c8430ab0f48d7f656cb38ddf138c830270e85d6382d7919649ab9023e4a1243d062fe4d59529a732e9f3314f8acb2b3a05e94740f9aa66a

Score
10/10
aspackv2persistence

Malware Config

Targets

    • Target

      4aabef3c4153063a555f60c681a4ec20137548c30f4713f1a7306dd089dac0b7

    • Size

      1.1MB

    • MD5

      f93f9a5a5e3a079609a57efb47bfc9cf

    • SHA1

      e32acecc130be16b519c419a409d2576df8d73d0

    • SHA256

      4aabef3c4153063a555f60c681a4ec20137548c30f4713f1a7306dd089dac0b7

    • SHA512

      582888483e60c5752c8430ab0f48d7f656cb38ddf138c830270e85d6382d7919649ab9023e4a1243d062fe4d59529a732e9f3314f8acb2b3a05e94740f9aa66a

    Score
    10/10
    aspackv2persistence

    • Modifies WinLogon for persistence

      persistence

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Winlogon Helper DLL

1
T1004

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Tasks