Analysis

  • max time kernel
    27s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    11-06-2021 03:07

General

  • Target

    823d448da43e918c9b6e0b9548e46e9048825be9a156efbb331240617b6f10d4.dll

  • Size

    162KB

  • MD5

    7e6f0416a1eb427740edc2e17cbb074f

  • SHA1

    284f16536e624d3f4ae94548724f79af7d452a3d

  • SHA256

    823d448da43e918c9b6e0b9548e46e9048825be9a156efbb331240617b6f10d4

  • SHA512

    68c186b406c93355270429a232ea325b6d5105446c333d90cb9e80059833a65c5279e29885f8d2602e970c4fc3dfceaa82648189d217c6840bc3f546096cbb71

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\823d448da43e918c9b6e0b9548e46e9048825be9a156efbb331240617b6f10d4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\823d448da43e918c9b6e0b9548e46e9048825be9a156efbb331240617b6f10d4.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1440

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1440-114-0x0000000000000000-mapping.dmp
  • memory/1440-115-0x0000000073C70000-0x0000000073C9E000-memory.dmp
    Filesize

    184KB

  • memory/1440-117-0x0000000000DE0000-0x0000000000DE6000-memory.dmp
    Filesize

    24KB