Analysis

  • max time kernel
    110s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21-12-2021 09:03

General

  • Target

    b9bf83d695f3e0fd56b2426663cf32ee.exe

  • Size

    5.2MB

  • MD5

    b9bf83d695f3e0fd56b2426663cf32ee

  • SHA1

    a6c30924a3db06bf7a615fa2b3b9fab020077a12

  • SHA256

    6210e72d2957ad378fe12f0b32551c5df654ddb2405c3be5d19005637fa9a548

  • SHA512

    29397577e1897dc906439ce1d464178be86dd75bfefcd1bb6cbd38234fbf01c112be112efa23aa1039aab10b2d22492c0ed69be2a61942c06b3db482a07c5885

Malware Config

Extracted

Family

danabot

Botnet

4

C2

142.11.244.223:443

23.106.122.139:443

Attributes
  • embedded_hash

    0FA95F120D6EB149A5D48E36BC76879D

  • type

    loader

rsa_pubkey.plain
rsa_privkey.plain

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Danabot Loader Component 4 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Blocklisted process makes network request 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 3 IoCs
  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9bf83d695f3e0fd56b2426663cf32ee.exe
    "C:\Users\Admin\AppData\Local\Temp\b9bf83d695f3e0fd56b2426663cf32ee.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3612
    • C:\Users\Admin\AppData\Local\Temp\kobong\guffer.exe
      "C:\Users\Admin\AppData\Local\Temp\kobong\guffer.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3844
      • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
        "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        PID:4344
    • C:\Users\Admin\AppData\Local\Temp\kobong\kadeinvp.exe
      "C:\Users\Admin\AppData\Local\Temp\kobong\kadeinvp.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4032
      • C:\Users\Admin\AppData\Local\Temp\chigkbgsmn.exe
        "C:\Users\Admin\AppData\Local\Temp\chigkbgsmn.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4208
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\CHIGKB~1.DLL,s C:\Users\Admin\AppData\Local\Temp\CHIGKB~1.EXE
          4⤵
          • Loads dropped DLL
          PID:2032
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\aaqvjreig.vbs"
        3⤵
          PID:4368
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pkhfuyj.vbs"
          3⤵
          • Blocklisted process makes network request
          PID:916

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Discovery

    Query Registry

    3
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    4
    T1082

    Command and Control

    Web Service

    1
    T1102

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751
      MD5

      54e9306f95f32e50ccd58af19753d929

      SHA1

      eab9457321f34d4dcf7d4a0ac83edc9131bf7c57

      SHA256

      45f94dceb18a8f738a26da09ce4558995a4fe02b971882e8116fc9b59813bb72

      SHA512

      8711a4d866f21cdf4d4e6131ec4cfaf6821d0d22b90946be8b5a09ab868af0270a89bc326f03b858f0361a83c11a1531b894dfd1945e4812ba429a7558791f4f

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
      MD5

      136a3a86fefd771c182b3f28c6ad0362

      SHA1

      5d1f54c6a5d58ea1aaf10973cd1ccaa53a81e1dc

      SHA256

      a147596f74bb2813912a843d21e0af1a13b2e9787e9af5fb2726510cef72d540

      SHA512

      87f5ebbf0c68f217a7d93924cd2fd2b0c448a3455f0779c18a82e50f7166d8a294ff1de85712401a8f59adad2bb09cad5f75f2095dc89282ea586df47b19894b

    • C:\Users\Admin\AppData\Local\Temp\CHIGKB~1.DLL
      MD5

      6263a97e82c43589b4184273825b61d4

      SHA1

      52925e51465de033869fc4b18792a592bc4e0fc8

      SHA256

      b885a7a6c7ac1bad2bed72f8a7b0da0a69775230d4b44f674788d979b7eb9dd5

      SHA512

      304d3861edbffe9e0e3a5cfb2e784eb945efe0ffbe5c938f9dc77a2313a6a1a1e213984bb600d216fc66a63854c2c98b6a6a880ba09b3bb12a4e41a747d3082c

    • C:\Users\Admin\AppData\Local\Temp\aaqvjreig.vbs
      MD5

      012e15826b454c168604b2d7c17cb755

      SHA1

      9e8d699ec0199883dee1b532c95751e97b8f271c

      SHA256

      8dba96f9da23ac5916368ff75ee660c3cd5818ac94ed40bc5cba404e47ccaa2d

      SHA512

      2badaa080b4daf34007324f76255ef84e559cf03376a54a09009eb6da3681a4b322c549172844e0ae30a3fd2f27752ddfcd1e116cab00f4916eeda9ed27d2dcf

    • C:\Users\Admin\AppData\Local\Temp\chigkbgsmn.exe
      MD5

      c5f2eec63e5cb7a8ff9e6264eff99d2b

      SHA1

      66547ce0183a5513ec07c2d550d4d0a3d0b28ec9

      SHA256

      8dec8b9e7f26917a548bbacefb418ba99499f8c2ef3f4bc8074b077a21447e77

      SHA512

      b78562ffe5b0afdc5aa2c7a1dc22886e3072be6614eb77bb86912d7cf6cb74b7042835c2cb70517caa8a91758d065f581edcceb6dbba2e39880beacb6d0172e5

    • C:\Users\Admin\AppData\Local\Temp\chigkbgsmn.exe
      MD5

      c5f2eec63e5cb7a8ff9e6264eff99d2b

      SHA1

      66547ce0183a5513ec07c2d550d4d0a3d0b28ec9

      SHA256

      8dec8b9e7f26917a548bbacefb418ba99499f8c2ef3f4bc8074b077a21447e77

      SHA512

      b78562ffe5b0afdc5aa2c7a1dc22886e3072be6614eb77bb86912d7cf6cb74b7042835c2cb70517caa8a91758d065f581edcceb6dbba2e39880beacb6d0172e5

    • C:\Users\Admin\AppData\Local\Temp\kobong\guffer.exe
      MD5

      1b7b336a66fc7977a919aa61cbd9bd7f

      SHA1

      91b31bfb4a5f59ae94fc399a839a74ed7c5acdbc

      SHA256

      2bff85dab968f5c5ff26c9d8a807b696eabe9e22abe42d475acfdd93ad68bf4b

      SHA512

      27877728ce2ef4cb3b3dae014dacf3ba1604eb8cbebe9e5b28eb6bbe23dd5375866ef062b4e6cb7ab12edcd5ea2ce34b8ad5093aa659f84c68dc93710c1d71a7

    • C:\Users\Admin\AppData\Local\Temp\kobong\guffer.exe
      MD5

      1b7b336a66fc7977a919aa61cbd9bd7f

      SHA1

      91b31bfb4a5f59ae94fc399a839a74ed7c5acdbc

      SHA256

      2bff85dab968f5c5ff26c9d8a807b696eabe9e22abe42d475acfdd93ad68bf4b

      SHA512

      27877728ce2ef4cb3b3dae014dacf3ba1604eb8cbebe9e5b28eb6bbe23dd5375866ef062b4e6cb7ab12edcd5ea2ce34b8ad5093aa659f84c68dc93710c1d71a7

    • C:\Users\Admin\AppData\Local\Temp\kobong\kadeinvp.exe
      MD5

      2c4e52fe62ac5afb2a24336305345494

      SHA1

      f1d64b2983733a3d94206b208f3a0e7a3b948ef7

      SHA256

      4f391986aa04d1ed0d6577f4b9f2c06558c4fad6ed183b49761a6aa410b09bae

      SHA512

      90b1ecae6f97dd79016900c428932710c0e7612416c1f20ee8d9eb264cce62d580042036f8d8cfb74fcfbf5e5976ed05d9f31edb4618491afcce7569832c4cf4

    • C:\Users\Admin\AppData\Local\Temp\kobong\kadeinvp.exe
      MD5

      2c4e52fe62ac5afb2a24336305345494

      SHA1

      f1d64b2983733a3d94206b208f3a0e7a3b948ef7

      SHA256

      4f391986aa04d1ed0d6577f4b9f2c06558c4fad6ed183b49761a6aa410b09bae

      SHA512

      90b1ecae6f97dd79016900c428932710c0e7612416c1f20ee8d9eb264cce62d580042036f8d8cfb74fcfbf5e5976ed05d9f31edb4618491afcce7569832c4cf4

    • C:\Users\Admin\AppData\Local\Temp\pkhfuyj.vbs
      MD5

      3c32e0ef23082bbcdaacf524a0a1a582

      SHA1

      b16a4a5ca219897fe759a1ab6a2fa2f495ce4f58

      SHA256

      e52551dc93c9deb88873c86698f3b42aa78e37ff9477d56b0c22b6b04c489fdf

      SHA512

      ec9beb7e7ba1e5a84f6029870bab4b3dbec037e23001f35736c8627d3224c57009f7a7408a22ac1a6ec491ce96b9f206ebcc08f9f179d667c1d02715adc28e19

    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
      MD5

      1b7b336a66fc7977a919aa61cbd9bd7f

      SHA1

      91b31bfb4a5f59ae94fc399a839a74ed7c5acdbc

      SHA256

      2bff85dab968f5c5ff26c9d8a807b696eabe9e22abe42d475acfdd93ad68bf4b

      SHA512

      27877728ce2ef4cb3b3dae014dacf3ba1604eb8cbebe9e5b28eb6bbe23dd5375866ef062b4e6cb7ab12edcd5ea2ce34b8ad5093aa659f84c68dc93710c1d71a7

    • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
      MD5

      1b7b336a66fc7977a919aa61cbd9bd7f

      SHA1

      91b31bfb4a5f59ae94fc399a839a74ed7c5acdbc

      SHA256

      2bff85dab968f5c5ff26c9d8a807b696eabe9e22abe42d475acfdd93ad68bf4b

      SHA512

      27877728ce2ef4cb3b3dae014dacf3ba1604eb8cbebe9e5b28eb6bbe23dd5375866ef062b4e6cb7ab12edcd5ea2ce34b8ad5093aa659f84c68dc93710c1d71a7

    • \Users\Admin\AppData\Local\Temp\CHIGKB~1.DLL
      MD5

      6263a97e82c43589b4184273825b61d4

      SHA1

      52925e51465de033869fc4b18792a592bc4e0fc8

      SHA256

      b885a7a6c7ac1bad2bed72f8a7b0da0a69775230d4b44f674788d979b7eb9dd5

      SHA512

      304d3861edbffe9e0e3a5cfb2e784eb945efe0ffbe5c938f9dc77a2313a6a1a1e213984bb600d216fc66a63854c2c98b6a6a880ba09b3bb12a4e41a747d3082c

    • \Users\Admin\AppData\Local\Temp\CHIGKB~1.DLL
      MD5

      6263a97e82c43589b4184273825b61d4

      SHA1

      52925e51465de033869fc4b18792a592bc4e0fc8

      SHA256

      b885a7a6c7ac1bad2bed72f8a7b0da0a69775230d4b44f674788d979b7eb9dd5

      SHA512

      304d3861edbffe9e0e3a5cfb2e784eb945efe0ffbe5c938f9dc77a2313a6a1a1e213984bb600d216fc66a63854c2c98b6a6a880ba09b3bb12a4e41a747d3082c

    • \Users\Admin\AppData\Local\Temp\nsp9CDE.tmp\UAC.dll
      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • memory/916-148-0x0000000000000000-mapping.dmp
    • memory/2032-152-0x0000000000000000-mapping.dmp
    • memory/2032-156-0x0000000004340000-0x00000000045B9000-memory.dmp
      Filesize

      2.5MB

    • memory/3844-122-0x0000000000A90000-0x0000000001121000-memory.dmp
      Filesize

      6.6MB

    • memory/3844-131-0x0000000000A90000-0x0000000001121000-memory.dmp
      Filesize

      6.6MB

    • memory/3844-130-0x0000000000A90000-0x0000000001121000-memory.dmp
      Filesize

      6.6MB

    • memory/3844-125-0x0000000077BC0000-0x0000000077D4E000-memory.dmp
      Filesize

      1.6MB

    • memory/3844-123-0x0000000000A90000-0x0000000001121000-memory.dmp
      Filesize

      6.6MB

    • memory/3844-116-0x0000000000000000-mapping.dmp
    • memory/4032-129-0x0000000000F50000-0x0000000001618000-memory.dmp
      Filesize

      6.8MB

    • memory/4032-128-0x0000000000F50000-0x0000000001618000-memory.dmp
      Filesize

      6.8MB

    • memory/4032-126-0x0000000000F50000-0x0000000001618000-memory.dmp
      Filesize

      6.8MB

    • memory/4032-127-0x0000000077BC0000-0x0000000077D4E000-memory.dmp
      Filesize

      1.6MB

    • memory/4032-124-0x0000000000F50000-0x0000000001618000-memory.dmp
      Filesize

      6.8MB

    • memory/4032-119-0x0000000000000000-mapping.dmp
    • memory/4208-145-0x00000000011A0000-0x0000000001343000-memory.dmp
      Filesize

      1.6MB

    • memory/4208-147-0x0000000000400000-0x0000000000997000-memory.dmp
      Filesize

      5.6MB

    • memory/4208-144-0x0000000001010000-0x000000000119D000-memory.dmp
      Filesize

      1.6MB

    • memory/4208-132-0x0000000000000000-mapping.dmp
    • memory/4344-146-0x0000000077BC0000-0x0000000077D4E000-memory.dmp
      Filesize

      1.6MB

    • memory/4344-143-0x0000000000C30000-0x00000000012C1000-memory.dmp
      Filesize

      6.6MB

    • memory/4344-142-0x0000000000C30000-0x00000000012C1000-memory.dmp
      Filesize

      6.6MB

    • memory/4344-141-0x0000000000C30000-0x00000000012C1000-memory.dmp
      Filesize

      6.6MB

    • memory/4344-140-0x0000000000C30000-0x00000000012C1000-memory.dmp
      Filesize

      6.6MB

    • memory/4344-137-0x0000000000000000-mapping.dmp
    • memory/4368-135-0x0000000000000000-mapping.dmp