Overview

overview

10

Static

static

PO20-10248.doc

windows7_x64

10

PO20-10248.doc

windows10_x64

1

Sharing

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General

  • Target

    PO20-10248.doc

  • Size

    1.4MB

  • Sample

    201216-yncveg4bwe

  • MD5

    61ef55d6c7e25f2ae50152303e4d2870

  • SHA1

    efc056f3bf84cd3c180fcce835bb3eea87674367

  • SHA256

    b1aaabe4faa83c2f71ee495365acceb37c0bdab5e66d4da90ab6aeeaa6def4af

  • SHA512

    5ca58344b652ed8d0a9500dce6377d03d54a9f3a6e404cf13b7742ab07b61f2da66117049b1d95908276dbf85053551047b906f306c0c803075c483350a3351a

Score
10/10
smokeloaderbackdoortrojanupx

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

httPs://paste.ee/r/v36Qg
ps1.dropper

httPs://paste.ee/r/8VJKz

Extracted

Family

smokeloader

Version

2018

C2

http://102water.com/1/

rc4.i32
rc4.i32

Targets

    • Target

      PO20-10248.doc

    • Size

      1.4MB

    • MD5

      61ef55d6c7e25f2ae50152303e4d2870

    • SHA1

      efc056f3bf84cd3c180fcce835bb3eea87674367

    • SHA256

      b1aaabe4faa83c2f71ee495365acceb37c0bdab5e66d4da90ab6aeeaa6def4af

    • SHA512

      5ca58344b652ed8d0a9500dce6377d03d54a9f3a6e404cf13b7742ab07b61f2da66117049b1d95908276dbf85053551047b906f306c0c803075c483350a3351a

    Score
    10/10
    smokeloaderbackdoortrojanupx

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

      trojanbackdoorsmokeloader

    • Blocklisted process makes network request

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • 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