Overview

overview

10

Static

static

3

01644c1081...18.exe

windows7-x64

10

01644c1081...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    01644c1081aaa09a39deb82c7bcc48a7_JaffaCakes118

  • Size

    3.9MB

  • Sample

    240426-w4jayaad7y

  • MD5

    01644c1081aaa09a39deb82c7bcc48a7

  • SHA1

    0522a3fed1b3d73029e6494e4e3b1019ee40a48d

  • SHA256

    6160f3966660b788ea437d5d202547e54d7532582be55d0d93c37860e912111c

  • SHA512

    b403ed4cd7b93fbfe4419eac7afa88d57307bbaef8a19edcca55bd3c9f99847186a014722706ba949dad3f4f35f3988dbe02e3e547b80b943275ebc59f58e5d0

  • SSDEEP

    98304:iq2jZUD9cGCMIcGDJxgQgEZjAgDZIuIsYOY1sFiAJ8:i5jZUDxIXuJEpNlIuZY1giT

Score
10/10
buerloaderpersistence

Malware Config

Extracted

Family

buer

C2

http://burload01.top/

http://burload02.top/

Targets

    • Target

      01644c1081aaa09a39deb82c7bcc48a7_JaffaCakes118

    • Size

      3.9MB

    • MD5

      01644c1081aaa09a39deb82c7bcc48a7

    • SHA1

      0522a3fed1b3d73029e6494e4e3b1019ee40a48d

    • SHA256

      6160f3966660b788ea437d5d202547e54d7532582be55d0d93c37860e912111c

    • SHA512

      b403ed4cd7b93fbfe4419eac7afa88d57307bbaef8a19edcca55bd3c9f99847186a014722706ba949dad3f4f35f3988dbe02e3e547b80b943275ebc59f58e5d0

    • SSDEEP

      98304:iq2jZUD9cGCMIcGDJxgQgEZjAgDZIuIsYOY1sFiAJ8:i5jZUDxIXuJEpNlIuZY1giT

    Score
    10/10
    buerloaderpersistence

    • Buer

      Buer is a new modular loader first seen in August 2019.

      loaderbuer

    • Modifies WinLogon for persistence

      persistence

    • Buer Loader

      Detects Buer loader in memory or disk.

      loader

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks