Overview

overview

10

Static

static

8

Fax 740.xls

windows7_x64

10

Fax 740.xls

windows10_x64

10

Analysis

  • max time kernel
    73s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-01-2021 07:08

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Fax 740.xls

  • Size

    886KB

  • MD5

    d7213d92bb25a6163ab3b79ba75f95a0

  • SHA1

    9e7d2f00b517a32d2f69ac0c41e48d09507abf5b

  • SHA256

    2f34e34033c25325694ee6e100e8b2c0deff78d0527acd72ebc598048ba74fe5

  • SHA512

    c57e459822b1463ed646824f74371ec518d09a710f41bc1022657794ec65a1eea2d404267543c076cd5e740d1e79238ddf43a3ed63463d7f7bf22e76de34d0a5

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 5 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\Fax 740.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:836
  • 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:1408
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//h41o7.dll InitHelperDll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:484
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:/Windows/Temp//h41o7.dll InitHelperDll
        3⤵
        • Loads dropped DLL
        PID:696

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

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\40F27.Xsl
    MD5

    23b1812062536497ba39b4ad1619938f

    SHA1

    90a64893e96db8c1e52eaeadf255a7c3bb20b7c3

    SHA256

    2b6f7c8c785878922532dbfa3f23d9b1e195ff51057f56819f5ed6bd377e950d

    SHA512

    b389ad3ad9c4ed2f9c6c3cb20f8cfd5c9c5c50b35402a21d2526517800658abf7bc81beef772338486b532812eeeafe0e99d97acb90a3593201ad625b9628139

    Download Submit
  • C:\Windows\Temp\h41o7.dll
    MD5

    9416a042a30b1b5b29ac31a00a280c08

    SHA1

    fcece453d47e8678a6fae77f3947c863e8f6eab6

    SHA256

    e00d88aa22fa89f7468bfddc5faf7f86d9c8c10d1f3b842a5be859afbcf40502

    SHA512

    f424662e71b3e4ab10b7a1f40b47b9f984aaaa24e2e0fdf7f213e15edc64680ee4913e1de7831ff342e78de193d35f0aef927942abb9083b3f58c400d9cc18ea

    Download Submit
  • \Windows\Temp\h41o7.dll
    MD5

    9416a042a30b1b5b29ac31a00a280c08

    SHA1

    fcece453d47e8678a6fae77f3947c863e8f6eab6

    SHA256

    e00d88aa22fa89f7468bfddc5faf7f86d9c8c10d1f3b842a5be859afbcf40502

    SHA512

    f424662e71b3e4ab10b7a1f40b47b9f984aaaa24e2e0fdf7f213e15edc64680ee4913e1de7831ff342e78de193d35f0aef927942abb9083b3f58c400d9cc18ea

    Download Submit
  • \Windows\Temp\h41o7.dll
    MD5

    9416a042a30b1b5b29ac31a00a280c08

    SHA1

    fcece453d47e8678a6fae77f3947c863e8f6eab6

    SHA256

    e00d88aa22fa89f7468bfddc5faf7f86d9c8c10d1f3b842a5be859afbcf40502

    SHA512

    f424662e71b3e4ab10b7a1f40b47b9f984aaaa24e2e0fdf7f213e15edc64680ee4913e1de7831ff342e78de193d35f0aef927942abb9083b3f58c400d9cc18ea

    Download Submit
  • \Windows\Temp\h41o7.dll
    MD5

    9416a042a30b1b5b29ac31a00a280c08

    SHA1

    fcece453d47e8678a6fae77f3947c863e8f6eab6

    SHA256

    e00d88aa22fa89f7468bfddc5faf7f86d9c8c10d1f3b842a5be859afbcf40502

    SHA512

    f424662e71b3e4ab10b7a1f40b47b9f984aaaa24e2e0fdf7f213e15edc64680ee4913e1de7831ff342e78de193d35f0aef927942abb9083b3f58c400d9cc18ea

    Download Submit
  • \Windows\Temp\h41o7.dll
    MD5

    9416a042a30b1b5b29ac31a00a280c08

    SHA1

    fcece453d47e8678a6fae77f3947c863e8f6eab6

    SHA256

    e00d88aa22fa89f7468bfddc5faf7f86d9c8c10d1f3b842a5be859afbcf40502

    SHA512

    f424662e71b3e4ab10b7a1f40b47b9f984aaaa24e2e0fdf7f213e15edc64680ee4913e1de7831ff342e78de193d35f0aef927942abb9083b3f58c400d9cc18ea

    Download Submit
  • memory/484-4-0x0000000000000000-mapping.dmp
    Download
  • memory/696-6-0x0000000000000000-mapping.dmp
    Download
  • memory/696-11-0x000000006C1F0000-0x000000006C20F000-memory.dmp
    Filesize

    124KB

    Download
  • memory/2036-3-0x000007FEF69C0000-0x000007FEF6C3A000-memory.dmp
    Filesize

    2.5MB

    Download