Overview

overview

10

Static

static

8

Confidential_123.xls

windows7_x64

10

Confidential_123.xls

windows10_x64

10

Analysis

  • max time kernel
    70s
  • max time network
    81s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-01-2021 07:07

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General

  • Target

    Confidential_123.xls

  • Size

    718KB

  • MD5

    fcd41b38e1a97fa769c5a9383b3652da

  • SHA1

    bf5e3db26379cbc9dab2256d87a84c78f222e56e

  • SHA256

    b4fa49afb10b8ceb2cbf7c422be2c024be8f298988da16d436df0a136ece5bf3

  • SHA512

    dd2304b7c79dc2b6f631dd004c45cb19be66a51f5124b3a1441ff3fb173497421b52777bbeb7fa240edc722bece2a364252c0ca14e535ff4ce6ffc213442eb56

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 3 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
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • 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\Confidential_123.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:1844
  • C:\Windows\system32\wbem\wmIC.exe
    wmIC
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1620
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//n5ug0.dll InitHelperDll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//n5ug0.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

2
T1112

Install Root Certificate

1
T1130

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\4E26.Xsl
    MD5

    a0ddf92efc3149ec6be5ae0e1c7d4697

    SHA1

    7c0835df13babacba8a70289b2ae457cb6999745

    SHA256

    1f2166903f1fdaf7cc09ae166d956d4eaf09ec9e887ee6bfc629f9eaa629f9b7

    SHA512

    c6f32e0d46891d559feac44b2a6d7d1689ca1be959c88aca457dceab79c3f435e28bebe32bfa26164bbb410ea184cd47122610ccb227b5e515bfb4c099f554e5

    Download Submit
  • C:\Windows\Temp\n5ug0.dll
    MD5

    9619684b4cb23336a2ec3f1013a7b23f

    SHA1

    51e8a98da29336701799ac7e5a0acdfb5253fb1f

    SHA256

    1f7518e3ee01da5b5595af1d1895563c4f8b849eca9bcacf36871ead189091a3

    SHA512

    cc4b76e6a71745477ba72574ec1e4bdd73ad4928e60ec742973f0aca765cacb59b3e28181f2262360c62b95951c423323a43b6cd807fb0dac16dca180058e98e

    Download Submit
  • \Windows\Temp\n5ug0.dll
    MD5

    9619684b4cb23336a2ec3f1013a7b23f

    SHA1

    51e8a98da29336701799ac7e5a0acdfb5253fb1f

    SHA256

    1f7518e3ee01da5b5595af1d1895563c4f8b849eca9bcacf36871ead189091a3

    SHA512

    cc4b76e6a71745477ba72574ec1e4bdd73ad4928e60ec742973f0aca765cacb59b3e28181f2262360c62b95951c423323a43b6cd807fb0dac16dca180058e98e

    Download Submit
  • \Windows\Temp\n5ug0.dll
    MD5

    9619684b4cb23336a2ec3f1013a7b23f

    SHA1

    51e8a98da29336701799ac7e5a0acdfb5253fb1f

    SHA256

    1f7518e3ee01da5b5595af1d1895563c4f8b849eca9bcacf36871ead189091a3

    SHA512

    cc4b76e6a71745477ba72574ec1e4bdd73ad4928e60ec742973f0aca765cacb59b3e28181f2262360c62b95951c423323a43b6cd807fb0dac16dca180058e98e

    Download Submit
  • \Windows\Temp\n5ug0.dll
    MD5

    9619684b4cb23336a2ec3f1013a7b23f

    SHA1

    51e8a98da29336701799ac7e5a0acdfb5253fb1f

    SHA256

    1f7518e3ee01da5b5595af1d1895563c4f8b849eca9bcacf36871ead189091a3

    SHA512

    cc4b76e6a71745477ba72574ec1e4bdd73ad4928e60ec742973f0aca765cacb59b3e28181f2262360c62b95951c423323a43b6cd807fb0dac16dca180058e98e

    Download Submit
  • \Windows\Temp\n5ug0.dll
    MD5

    9619684b4cb23336a2ec3f1013a7b23f

    SHA1

    51e8a98da29336701799ac7e5a0acdfb5253fb1f

    SHA256

    1f7518e3ee01da5b5595af1d1895563c4f8b849eca9bcacf36871ead189091a3

    SHA512

    cc4b76e6a71745477ba72574ec1e4bdd73ad4928e60ec742973f0aca765cacb59b3e28181f2262360c62b95951c423323a43b6cd807fb0dac16dca180058e98e

    Download Submit
  • memory/932-3-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp
    Filesize

    2.5MB

    Download
  • memory/1276-4-0x0000000000000000-mapping.dmp
    Download
  • memory/1680-6-0x0000000000000000-mapping.dmp
    Download
  • memory/1680-11-0x000000006B910000-0x000000006B92F000-memory.dmp
    Filesize

    124KB

    Download