General

  • Target

    4.exe

  • Size

    1.4MB

  • Sample

    230516-rsxxqsbc22

  • MD5

    1dab5e05ac3651db47b6f881dab8dd3e

  • SHA1

    66c37ab30dc83b3519815b2406cc6dd332e4d91b

  • SHA256

    b445018afa2dee3bda17e65e52a7a3c143b0ae31abd00d26f58a4fa3319dd523

  • SHA512

    dd31a50b54385b3c1917e6eb17e7970c2fd97ec481c297865d7f37c7f2ea137ed8b60a131e7de5a7eee2278f5d26951c9da0be4e2babb00582993fb1cf8b4472

  • SSDEEP

    24576:t9j0kMtM5Gcc59B40fuI3At9NzS1f8iGiEKjOWVQbHnERMJaICUQqi+4P8mHMC9i:7MOqu0fpAt9NzAEi7XxsERNB5PRsYo

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5797428905:AAGaRRXGZN1d9GGFd3sE5x4uSpCGF0PU4m4/sendMessage?chat_id=1251788325

Targets

    • Target

      4.exe

    • Size

      1.4MB

    • MD5

      1dab5e05ac3651db47b6f881dab8dd3e

    • SHA1

      66c37ab30dc83b3519815b2406cc6dd332e4d91b

    • SHA256

      b445018afa2dee3bda17e65e52a7a3c143b0ae31abd00d26f58a4fa3319dd523

    • SHA512

      dd31a50b54385b3c1917e6eb17e7970c2fd97ec481c297865d7f37c7f2ea137ed8b60a131e7de5a7eee2278f5d26951c9da0be4e2babb00582993fb1cf8b4472

    • SSDEEP

      24576:t9j0kMtM5Gcc59B40fuI3At9NzS1f8iGiEKjOWVQbHnERMJaICUQqi+4P8mHMC9i:7MOqu0fpAt9NzAEi7XxsERNB5PRsYo

    • BluStealer

      A Modular information stealer written in Visual Basic.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks