Overview

overview

10

Static

static

Proforma I...oc.rtf

windows7_x64

10

Proforma I...oc.rtf

windows10_x64

1

Sharing

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General

  • Target

    Proforma Invoice.doc

  • Size

    2.5MB

  • Sample

    201220-z53mmbzrtn

  • MD5

    f8d74c4e175a21cb8010a56b455d56e0

  • SHA1

    c2fc75b55d8aadb0486adbf6c172dee41591d346

  • SHA256

    64488d0945d0b02943797f1886fd7d5f075f61445b6c41071a0c77b40eb3649f

  • SHA512

    e20debdf490d024ae84779d98303f8cc9f30b52292cb33731ce890ff07dca622f88fe0dc0e3f83327ca8ee6bf81316846cea4747dbaddd77f175d297f64db819

Score
10/10
smokeloaderbackdoortrojan

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

httPs://paste.ee/r/WX4xy
ps1.dropper

httPs://paste.ee/r/S4DRb

Extracted

Family

smokeloader

Version

2018

C2

http://bearddate.com/1/

rc4.i32
rc4.i32

Targets

    • Target

      Proforma Invoice.doc

    • Size

      2.5MB

    • MD5

      f8d74c4e175a21cb8010a56b455d56e0

    • SHA1

      c2fc75b55d8aadb0486adbf6c172dee41591d346

    • SHA256

      64488d0945d0b02943797f1886fd7d5f075f61445b6c41071a0c77b40eb3649f

    • SHA512

      e20debdf490d024ae84779d98303f8cc9f30b52292cb33731ce890ff07dca622f88fe0dc0e3f83327ca8ee6bf81316846cea4747dbaddd77f175d297f64db819

    Score
    10/10
    smokeloaderbackdoortrojan

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1
T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks