Overview

overview

10

Static

static

8

Contract_#_599848.xls

windows7_x64

10

Contract_#_599848.xls

windows10_x64

10

Analysis

  • max time kernel
    91s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-01-2021 07:07

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General

  • Target

    Contract_#_599848.xls

  • Size

    815KB

  • MD5

    82ee594ab9d12d0a00bf399beb7f4e1f

  • SHA1

    5b58a1fefd63ca221b0eeca61b9378db25ae0eb1

  • SHA256

    05b9806f446c71ca46bbddc10176bf28838430bbecb9545cc730fdb93b205476

  • SHA512

    78b80fc1780c51f827ee6f71111b3b037ef0605cbe364b039e7746f6704759f9b1f2c725e7e5869bedf0a11dc9d41d21a9d527f8b2cffcd222818f7ac8651cc5

Score
10/10
dridex111botnetloaderransomware

Malware Config

Extracted

Family

dridex

Botnet

111

C2

52.73.70.149:443

8.4.9.152:3786

185.246.87.202:3098

50.116.111.64:5353
rc4.plain
rc4.plain

Signatures

  • Dridex

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

    botnetdridex
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

    botnetloader
  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 4 IoCs
  • JavaScript code in executable 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    ransomware
  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
    adwarespyware
  • Modifies registry class 280 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Contract_#_599848.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:776
  • C:\Windows\system32\wbem\WmIc.exe
    WmIc
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1548
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//o3xs6.dll InitHelperDll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1624
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//o3xs6.dll InitHelperDll
        3⤵
        • Loads dropped DLL
        PID:1680

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\2AC17.xSl
    MD5

    6d75f5c52219c05eb60f8d4b0cacfd2f

    SHA1

    9b01f494a2f9b0f0e79a1441c3bc52273c900b9e

    SHA256

    0e5c4fe7cde7b846f72886bcc5551c642c098532d18d9d71e6f3913d2df22b14

    SHA512

    95c5bf80f348da62cbd1afc4afc3e3f90ce5c4b76026d47eaed2b90ffa095f149c18d806ab57ef626735bdc7805da91c03c5764579ea707a43b62d9035263636

    Download Submit
  • C:\Windows\Temp\o3xs6.dll
    MD5

    56192997620ed4fcddb4c89c8567b9ef

    SHA1

    a2d7021e5e0ad5a1d771e9f4abffbad264154260

    SHA256

    71436caec79992118e125c08518fff2b5f88ad413ce08b1858dcd7ba39e471eb

    SHA512

    1c1ce70b6c5fe6f3b9a2e0fc32950f19136890806da7a7441751eecef3076d1075895fe02cd14bf755036c8da1e5f4fb67b031ae0e9bfc503e96cd76db1a8bc7

    Download Submit
  • \Windows\Temp\o3xs6.dll
    MD5

    56192997620ed4fcddb4c89c8567b9ef

    SHA1

    a2d7021e5e0ad5a1d771e9f4abffbad264154260

    SHA256

    71436caec79992118e125c08518fff2b5f88ad413ce08b1858dcd7ba39e471eb

    SHA512

    1c1ce70b6c5fe6f3b9a2e0fc32950f19136890806da7a7441751eecef3076d1075895fe02cd14bf755036c8da1e5f4fb67b031ae0e9bfc503e96cd76db1a8bc7

    Download Submit
  • \Windows\Temp\o3xs6.dll
    MD5

    56192997620ed4fcddb4c89c8567b9ef

    SHA1

    a2d7021e5e0ad5a1d771e9f4abffbad264154260

    SHA256

    71436caec79992118e125c08518fff2b5f88ad413ce08b1858dcd7ba39e471eb

    SHA512

    1c1ce70b6c5fe6f3b9a2e0fc32950f19136890806da7a7441751eecef3076d1075895fe02cd14bf755036c8da1e5f4fb67b031ae0e9bfc503e96cd76db1a8bc7

    Download Submit
  • \Windows\Temp\o3xs6.dll
    MD5

    56192997620ed4fcddb4c89c8567b9ef

    SHA1

    a2d7021e5e0ad5a1d771e9f4abffbad264154260

    SHA256

    71436caec79992118e125c08518fff2b5f88ad413ce08b1858dcd7ba39e471eb

    SHA512

    1c1ce70b6c5fe6f3b9a2e0fc32950f19136890806da7a7441751eecef3076d1075895fe02cd14bf755036c8da1e5f4fb67b031ae0e9bfc503e96cd76db1a8bc7

    Download Submit
  • \Windows\Temp\o3xs6.dll
    MD5

    56192997620ed4fcddb4c89c8567b9ef

    SHA1

    a2d7021e5e0ad5a1d771e9f4abffbad264154260

    SHA256

    71436caec79992118e125c08518fff2b5f88ad413ce08b1858dcd7ba39e471eb

    SHA512

    1c1ce70b6c5fe6f3b9a2e0fc32950f19136890806da7a7441751eecef3076d1075895fe02cd14bf755036c8da1e5f4fb67b031ae0e9bfc503e96cd76db1a8bc7

    Download Submit
  • memory/1624-4-0x0000000000000000-mapping.dmp
    Download
  • memory/1680-6-0x0000000000000000-mapping.dmp
    Download
  • memory/1680-11-0x000000006B860000-0x000000006B87F000-memory.dmp
    Filesize

    124KB

    Download
  • memory/1852-3-0x000007FEF72E0000-0x000007FEF755A000-memory.dmp
    Filesize

    2.5MB

    Download