Overview

overview

10

Static

static

1

OfficeDocument.exe

windows7_x64

10

OfficeDocument.exe

windows10_x64

10

Sharing

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General

  • Target

    OfficeDocument.exe

  • Size

    277KB

  • Sample

    210305-5rr354ayej

  • MD5

    50991ebb9f7b1eb055901dc643bf50c5

  • SHA1

    366e13a36809fef35d12e46b3f14ce950de6a7c0

  • SHA256

    a9ec36c1b7687d5436007f2640795702ec68b69a67561f94e8507857eb1971cd

  • SHA512

    3b5388273e490433b9bef0c445dccb628c89be7568effe0bc3f709f3f1bb021f1881846ddc96831a201b74246be87c6404acaebe9f20be6d19b74797f0a903f0

Score
10/10
buerloader

Malware Config

Extracted

Family

buer

C2

officesecuredocapi.com

Targets

    • Target

      OfficeDocument.exe

    • Size

      277KB

    • MD5

      50991ebb9f7b1eb055901dc643bf50c5

    • SHA1

      366e13a36809fef35d12e46b3f14ce950de6a7c0

    • SHA256

      a9ec36c1b7687d5436007f2640795702ec68b69a67561f94e8507857eb1971cd

    • SHA512

      3b5388273e490433b9bef0c445dccb628c89be7568effe0bc3f709f3f1bb021f1881846ddc96831a201b74246be87c6404acaebe9f20be6d19b74797f0a903f0

    Score
    10/10
    buerloader

    • Buer

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

      loaderbuer

    • Buer Loader

      Detects Buer loader in memory or disk.

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks