Overview

overview

8

Static

static

DropboxInstaller.exe

windows7-x64

DropboxInstaller.exe

windows10-2004-x64

1

Sharing

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General

  • Target

    DropboxInstaller.exe

  • Size

    653KB

  • Sample

    221125-s4x8baca81

  • MD5

    74bbc8c19cfccb1ff3211c0b1a50d34d

  • SHA1

    e952b1acc670346e85a6e680810612fb2b54dae7

  • SHA256

    0912106b4527149e156b0838d8f16732a6dd2b6e98014a3dd8dbc253e50b76af

  • SHA512

    1d53782f1ac935e01b020d38f1fe9a6f0fbec10598fec1fa181aa243c67a82665fbe692345e698e5fe02941f840923e7bb04296358a487d8803200f4c87c90a7

  • SSDEEP

    12288:l/iSu7Kp081EFbfcjTBJgSFghJys9WDksIiCerNc9fEiQsBc4KtyUDl:l/iPoO2jTBFAys9APGVSbsi4u

Score
8/10
persistence

Malware Config

Targets

    • Target

      DropboxInstaller.exe

    • Size

      653KB

    • MD5

      74bbc8c19cfccb1ff3211c0b1a50d34d

    • SHA1

      e952b1acc670346e85a6e680810612fb2b54dae7

    • SHA256

      0912106b4527149e156b0838d8f16732a6dd2b6e98014a3dd8dbc253e50b76af

    • SHA512

      1d53782f1ac935e01b020d38f1fe9a6f0fbec10598fec1fa181aa243c67a82665fbe692345e698e5fe02941f840923e7bb04296358a487d8803200f4c87c90a7

    • SSDEEP

      12288:l/iSu7Kp081EFbfcjTBJgSFghJys9WDksIiCerNc9fEiQsBc4KtyUDl:l/iPoO2jTBFAys9APGVSbsi4u

    Score
    8/10
    persistence

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Sets file execution options in registry

      persistence

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks