Analysis

  • max time kernel
    142s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    25-12-2021 05:52

General

  • Target

    3f8974ef9b6a429376d46e082bbb9cb418417f25dcc744837c5b36efaf4c3f35.exe

  • Size

    5.5MB

  • MD5

    b853012145aabac760af9e9a0fe37b3e

  • SHA1

    25bdf531d5fafeec8b02d3d2a09dfb5a1340e9c2

  • SHA256

    3f8974ef9b6a429376d46e082bbb9cb418417f25dcc744837c5b36efaf4c3f35

  • SHA512

    c66586730d1fc0751fc71b1e03597a7d6045d347221ed13179b393e8052f6c4050ce7e794861fc9fee2fd2fbc9a39dcb4e33530315b61b35784e487af0f95774

Malware Config

Extracted

Family

danabot

Botnet

4

C2

142.11.244.223:443

192.236.194.72:443

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 2 IoCs
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 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 2 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.

  • Program crash 1 IoCs
  • 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f8974ef9b6a429376d46e082bbb9cb418417f25dcc744837c5b36efaf4c3f35.exe
    "C:\Users\Admin\AppData\Local\Temp\3f8974ef9b6a429376d46e082bbb9cb418417f25dcc744837c5b36efaf4c3f35.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3404
    • C:\Users\Admin\AppData\Local\Temp\nutlet\hughoc.exe
      "C:\Users\Admin\AppData\Local\Temp\nutlet\hughoc.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:3644
      • 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:4396
    • C:\Users\Admin\AppData\Local\Temp\nutlet\kulmetvp.exe
      "C:\Users\Admin\AppData\Local\Temp\nutlet\kulmetvp.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:3532
      • C:\Users\Admin\AppData\Local\Temp\mmtcolpbkk.exe
        "C:\Users\Admin\AppData\Local\Temp\mmtcolpbkk.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4084
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\MMTCOL~1.DLL,s C:\Users\Admin\AppData\Local\Temp\MMTCOL~1.EXE
          4⤵
          • Loads dropped DLL
          PID:1288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 556
          4⤵
          • Suspicious use of NtCreateProcessExOtherParentProcess
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2252
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ccyrdvu.vbs"
        3⤵
          PID:3980
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\kvvbkmbi.vbs"
          3⤵
          • Blocklisted process makes network request
          PID:936

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    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

      7efc5526e4b634ca68a5a28213218059

      SHA1

      c5fb622be6c3e961591fb9345e776e129fc035ef

      SHA256

      ef4c2dadc710f749e5c236bb5fc5f4e500666ec89e808d0ccd99fbca8cbe3a91

      SHA512

      b31f4e41abaf1ec16e10059f63beeb7a1f0bbd877f26adc4baca5ca319f02ad7f549819cdbd599c1e548ece4320857e3a39189c6d60d9872848f09a9681e9e77

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

      151e6f9525a132844cb80472ed5c77a1

      SHA1

      cbad2999ddf30169dc09bc565b291e7112ea01ec

      SHA256

      7bc5454b5eb9455f62959ab2b1f24961f3c6bcb611451027555500bdafa928e6

      SHA512

      6a4d984966d6736c30a1562cc1cc9e9ada6fb277b4f4c2801049d1e622082a74fe7e1da36ff2267958aac59d689a222fb6a2a9a99e1e3991c58e1b8d8a9cd012

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

      720ab043b9b8be0754c9b418e14201fe

      SHA1

      8ab242054facabc43c4b19c7c42b191837dd80f1

      SHA256

      870e78dde3df08157ed44dc3fd39b92e6f7dfab44ab3687c3f59978e242bc5ba

      SHA512

      d73766cd5591ef48be0cae271264763630ce7c78a836a1f4e649917b7fd175008908f5677d9d362574d1597f1e5a90dd2b7dd395fcf70d26d0889ab5d59e6727

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

      95349701ea728f8fc605930cc710bd57

      SHA1

      6dea4b2d2a941bab4a2c231e49b3ca3360d8e2e8

      SHA256

      c0015eb53a17f5b3390c2774a55f0077200ef4edd9cf44546ec75dd9322172dd

      SHA512

      d451441eb41d6d0fb177eda03215e497300fe03e4e4c5bbce1b22332b0615f201faf164a491eb1cface0a5eedf1e6064605e3b6ee1fdbf184f177205bbbc8ab7

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

      1f64ff2c89d8707c0cd78a8fe6a7032c

      SHA1

      846441f9d4eb60912f7dbdc86b1cdea33338edc6

      SHA256

      e99a92c295b18b10760201a9d13e9ef1f1f19d1c2d0253c191011935f8ce7736

      SHA512

      3f09a22bdc7ed161ab5465b3c30e9006adfc1294fab72cd92f7d98e957ce677d3524d2d648d1b9f23e8b06329b8ffb1f41aa58123e61adf444892ec7c223caf1

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

      1f64ff2c89d8707c0cd78a8fe6a7032c

      SHA1

      846441f9d4eb60912f7dbdc86b1cdea33338edc6

      SHA256

      e99a92c295b18b10760201a9d13e9ef1f1f19d1c2d0253c191011935f8ce7736

      SHA512

      3f09a22bdc7ed161ab5465b3c30e9006adfc1294fab72cd92f7d98e957ce677d3524d2d648d1b9f23e8b06329b8ffb1f41aa58123e61adf444892ec7c223caf1

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

      0019785ef16b9d250b3663c51b8df159

      SHA1

      527fc20c982e535116755d3415acfc397235c21b

      SHA256

      5f81fe3b07dd7cb4cb007867040928b81b3d5abd8cae2997eeae24d056c12e83

      SHA512

      d474ef3f4ac5dd8f3456948bc6a484c178f97435958a22849bec056025bc1658d077bbe0d671a5c6c90166b5e15efa3ed95cee819f243d322aa2adafab3f3888

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

      0019785ef16b9d250b3663c51b8df159

      SHA1

      527fc20c982e535116755d3415acfc397235c21b

      SHA256

      5f81fe3b07dd7cb4cb007867040928b81b3d5abd8cae2997eeae24d056c12e83

      SHA512

      d474ef3f4ac5dd8f3456948bc6a484c178f97435958a22849bec056025bc1658d077bbe0d671a5c6c90166b5e15efa3ed95cee819f243d322aa2adafab3f3888

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

      9dd925d43100d4e9a466cc7d0681213d

      SHA1

      ba8945827c9aa094b5bcb8cb8aa2d1fad1e74d79

      SHA256

      82ee9213fbcd132441778404eaf72ff4867eaa78d6d919b4746b3d769d7640cf

      SHA512

      2677542ff54a2608de9cf35a0fef2383a646c93b7002fb64169fe947fa915d78f4ed5e5fd6dd8471672082db24268cb5c2e87e345afc054f8bb23e7a0fc913a7

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

      9dd925d43100d4e9a466cc7d0681213d

      SHA1

      ba8945827c9aa094b5bcb8cb8aa2d1fad1e74d79

      SHA256

      82ee9213fbcd132441778404eaf72ff4867eaa78d6d919b4746b3d769d7640cf

      SHA512

      2677542ff54a2608de9cf35a0fef2383a646c93b7002fb64169fe947fa915d78f4ed5e5fd6dd8471672082db24268cb5c2e87e345afc054f8bb23e7a0fc913a7

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

      0019785ef16b9d250b3663c51b8df159

      SHA1

      527fc20c982e535116755d3415acfc397235c21b

      SHA256

      5f81fe3b07dd7cb4cb007867040928b81b3d5abd8cae2997eeae24d056c12e83

      SHA512

      d474ef3f4ac5dd8f3456948bc6a484c178f97435958a22849bec056025bc1658d077bbe0d671a5c6c90166b5e15efa3ed95cee819f243d322aa2adafab3f3888

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

      0019785ef16b9d250b3663c51b8df159

      SHA1

      527fc20c982e535116755d3415acfc397235c21b

      SHA256

      5f81fe3b07dd7cb4cb007867040928b81b3d5abd8cae2997eeae24d056c12e83

      SHA512

      d474ef3f4ac5dd8f3456948bc6a484c178f97435958a22849bec056025bc1658d077bbe0d671a5c6c90166b5e15efa3ed95cee819f243d322aa2adafab3f3888

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

      151e6f9525a132844cb80472ed5c77a1

      SHA1

      cbad2999ddf30169dc09bc565b291e7112ea01ec

      SHA256

      7bc5454b5eb9455f62959ab2b1f24961f3c6bcb611451027555500bdafa928e6

      SHA512

      6a4d984966d6736c30a1562cc1cc9e9ada6fb277b4f4c2801049d1e622082a74fe7e1da36ff2267958aac59d689a222fb6a2a9a99e1e3991c58e1b8d8a9cd012

    • \Users\Admin\AppData\Local\Temp\nssA347.tmp\UAC.dll
      MD5

      adb29e6b186daa765dc750128649b63d

      SHA1

      160cbdc4cb0ac2c142d361df138c537aa7e708c9

      SHA256

      2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

      SHA512

      b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

    • memory/936-148-0x0000000000000000-mapping.dmp
    • memory/1288-152-0x0000000000000000-mapping.dmp
    • memory/3532-124-0x00000000009E0000-0x00000000010BA000-memory.dmp
      Filesize

      6.9MB

    • memory/3532-131-0x0000000077000000-0x000000007718E000-memory.dmp
      Filesize

      1.6MB

    • memory/3532-129-0x00000000009E0000-0x00000000010BA000-memory.dmp
      Filesize

      6.9MB

    • memory/3532-127-0x00000000009E0000-0x00000000010BA000-memory.dmp
      Filesize

      6.9MB

    • memory/3532-125-0x00000000009E0000-0x00000000010BA000-memory.dmp
      Filesize

      6.9MB

    • memory/3532-119-0x0000000000000000-mapping.dmp
    • memory/3644-130-0x0000000077000000-0x000000007718E000-memory.dmp
      Filesize

      1.6MB

    • memory/3644-128-0x0000000000BE0000-0x00000000012C9000-memory.dmp
      Filesize

      6.9MB

    • memory/3644-126-0x0000000000BE0000-0x00000000012C9000-memory.dmp
      Filesize

      6.9MB

    • memory/3644-122-0x0000000000BE0000-0x00000000012C9000-memory.dmp
      Filesize

      6.9MB

    • memory/3644-123-0x0000000000BE0000-0x00000000012C9000-memory.dmp
      Filesize

      6.9MB

    • memory/3644-116-0x0000000000000000-mapping.dmp
    • memory/3980-135-0x0000000000000000-mapping.dmp
    • memory/4084-138-0x0000000000CA0000-0x0000000000E47000-memory.dmp
      Filesize

      1.7MB

    • memory/4084-139-0x0000000000400000-0x0000000000650000-memory.dmp
      Filesize

      2.3MB

    • memory/4084-137-0x0000000000B04000-0x0000000000C95000-memory.dmp
      Filesize

      1.6MB

    • memory/4084-132-0x0000000000000000-mapping.dmp
    • memory/4396-145-0x0000000000910000-0x0000000000FF9000-memory.dmp
      Filesize

      6.9MB

    • memory/4396-146-0x0000000000910000-0x0000000000FF9000-memory.dmp
      Filesize

      6.9MB

    • memory/4396-147-0x0000000077000000-0x000000007718E000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-144-0x0000000000910000-0x0000000000FF9000-memory.dmp
      Filesize

      6.9MB

    • memory/4396-143-0x0000000000910000-0x0000000000FF9000-memory.dmp
      Filesize

      6.9MB

    • memory/4396-140-0x0000000000000000-mapping.dmp