Analysis

  • max time kernel
    127s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    06-05-2021 14:12

General

  • Target

    cvhost.exe

  • Size

    6.1MB

  • MD5

    51209196cdca1e7988eac671f69a58a4

  • SHA1

    eabe5ca552932cd3d94e95eaacc3449722cadae6

  • SHA256

    8884c731201c65b7db739e95839374b509ac0cd4a2b18b7075864f56d13c9bd7

  • SHA512

    3203aa4427fdc1fc56d6cb69537fb92dc1100871f069a034b07a085227690a217d8ff780b236461f9f006dcd507505e9249ef00c6da8915aa4bc1cf0406f03c8

Malware Config

Extracted

Family

danabot

Version

1827

Botnet

3

C2

184.95.51.180:443

192.236.147.83:443

184.95.51.175:443

184.95.51.183:443

Attributes
  • embedded_hash

    AEF96B4D339B580ABB737F203C2D0F52

rsa_pubkey.plain
rsa_pubkey.plain

Signatures

  • Danabot

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

  • Blocklisted process makes network request 4 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cvhost.exe
    "C:\Users\Admin\AppData\Local\Temp\cvhost.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3876
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\CVHOST~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\cvhost.exe
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\CVHOST~1.DLL,RxssLDbBBWQ=
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        PID:3944

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    MD5

    dd48fbaee3fa2b53707df0a329f63213

    SHA1

    ff95cb081070d8f67faf399cec209f62c2d1c1eb

    SHA256

    92204e0e3f9296e8e8d07fb7d8155d22a633812360bbfa4bd7221147820c6b24

    SHA512

    5a437a522688ee190d4e531881227b5b42a790193b9698d1432e17270d86d1ed67648b5159e132edc0edcd3a3a49f0644eba3e570aaa6323b355739577e64973

  • \Users\Admin\AppData\Local\Temp\CVHOST~1.DLL

    MD5

    dd48fbaee3fa2b53707df0a329f63213

    SHA1

    ff95cb081070d8f67faf399cec209f62c2d1c1eb

    SHA256

    92204e0e3f9296e8e8d07fb7d8155d22a633812360bbfa4bd7221147820c6b24

    SHA512

    5a437a522688ee190d4e531881227b5b42a790193b9698d1432e17270d86d1ed67648b5159e132edc0edcd3a3a49f0644eba3e570aaa6323b355739577e64973

  • \Users\Admin\AppData\Local\Temp\CVHOST~1.DLL

    MD5

    dd48fbaee3fa2b53707df0a329f63213

    SHA1

    ff95cb081070d8f67faf399cec209f62c2d1c1eb

    SHA256

    92204e0e3f9296e8e8d07fb7d8155d22a633812360bbfa4bd7221147820c6b24

    SHA512

    5a437a522688ee190d4e531881227b5b42a790193b9698d1432e17270d86d1ed67648b5159e132edc0edcd3a3a49f0644eba3e570aaa6323b355739577e64973

  • memory/2704-117-0x0000000000000000-mapping.dmp

  • memory/2704-126-0x0000000005491000-0x0000000005AF0000-memory.dmp

    Filesize

    6.4MB

  • memory/2704-127-0x0000000003390000-0x0000000003391000-memory.dmp

    Filesize

    4KB

  • memory/3876-114-0x0000000002DB0000-0x00000000034B6000-memory.dmp

    Filesize

    7.0MB

  • memory/3876-115-0x0000000000400000-0x0000000000B12000-memory.dmp

    Filesize

    7.1MB

  • memory/3876-116-0x0000000000C90000-0x0000000000C91000-memory.dmp

    Filesize

    4KB

  • memory/3944-122-0x0000000000000000-mapping.dmp

  • memory/3944-128-0x00000000050E1000-0x0000000005740000-memory.dmp

    Filesize

    6.4MB