Resubmissions

26-08-2021 15:28

210826-blwj5wwjsn 10

26-08-2021 09:06

210826-ae6ksmbjc2 10

Analysis

  • max time kernel
    163s
  • max time network
    167s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-08-2021 09:06

General

  • Target

    tepserv.exe

  • Size

    1.1MB

  • MD5

    0884288b2df269ff9b34fddff3eb3208

  • SHA1

    1480a8543b3c1fd4d26dc30fb60b8f9e1306aa0b

  • SHA256

    1ebddf22053d7670fc06fae9e4e2ff41cd48054f563ccab3c7561c6d1f989e91

  • SHA512

    f5ab8884eac60f2a4026b512491bde6cd8cd7df79f7d00c7f9dd8cbd1871ed5d981f7785481fa12446c217e4bed1ea7cc931a9d47dad5bd3ffa9c54db9c1320e

Malware Config

Signatures

  • Danabot

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

  • Danabot Loader Component 5 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in Program Files directory 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tepserv.exe
    "C:\Users\Admin\AppData\Local\Temp\tepserv.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\TEPSER~1.DLL,s C:\Users\Admin\AppData\Local\Temp\tepserv.exe
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2304
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\TEPSER~1.DLL,sl1VOHY0Qg==
        3⤵
        • Loads dropped DLL
        PID:4016

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~3\Gskyj.tmp
    MD5

    1dbb4568625d2862d91483afb488ed9c

    SHA1

    34294efd328ec332359fe59d1f0d2671f584a8ab

    SHA256

    e7e2d08c9d6d5a3559e6bdc634f1b74f22dca17b752eea1abdda12d6b3fa7365

    SHA512

    6d1315aa061c30447e2edbf02a87b9142866db6f24a13e7a0b5e2ce5e07389c12854983e3d1b475420458f4357611ce8e103004e637be3527b9e4f042cea63c6

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

    b3e7a4a3c414d4eae7fc81007c581d8a

    SHA1

    e6d115b949c7fffc4f770c7b681ea22fa1e4d736

    SHA256

    928ec5be3ed1ad12a920186c3315754a9a2e905fab409f6ab87fd721fc4bc065

    SHA512

    727c700efbba54b4ced1ab0f32059de486d32db4285564576bfc35c02cd543f9426e624b65cd6ac461c1898bd009c0ff48f9f9eb5d33e0a6d7372588b4793035

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

    b3e7a4a3c414d4eae7fc81007c581d8a

    SHA1

    e6d115b949c7fffc4f770c7b681ea22fa1e4d736

    SHA256

    928ec5be3ed1ad12a920186c3315754a9a2e905fab409f6ab87fd721fc4bc065

    SHA512

    727c700efbba54b4ced1ab0f32059de486d32db4285564576bfc35c02cd543f9426e624b65cd6ac461c1898bd009c0ff48f9f9eb5d33e0a6d7372588b4793035

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

    b3e7a4a3c414d4eae7fc81007c581d8a

    SHA1

    e6d115b949c7fffc4f770c7b681ea22fa1e4d736

    SHA256

    928ec5be3ed1ad12a920186c3315754a9a2e905fab409f6ab87fd721fc4bc065

    SHA512

    727c700efbba54b4ced1ab0f32059de486d32db4285564576bfc35c02cd543f9426e624b65cd6ac461c1898bd009c0ff48f9f9eb5d33e0a6d7372588b4793035

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

    b3e7a4a3c414d4eae7fc81007c581d8a

    SHA1

    e6d115b949c7fffc4f770c7b681ea22fa1e4d736

    SHA256

    928ec5be3ed1ad12a920186c3315754a9a2e905fab409f6ab87fd721fc4bc065

    SHA512

    727c700efbba54b4ced1ab0f32059de486d32db4285564576bfc35c02cd543f9426e624b65cd6ac461c1898bd009c0ff48f9f9eb5d33e0a6d7372588b4793035

  • memory/652-114-0x0000000004CA0000-0x0000000004DA6000-memory.dmp
    Filesize

    1.0MB

  • memory/652-115-0x0000000000400000-0x0000000002DA2000-memory.dmp
    Filesize

    41.6MB

  • memory/2304-116-0x0000000000000000-mapping.dmp
  • memory/2304-120-0x0000000000730000-0x0000000000892000-memory.dmp
    Filesize

    1.4MB

  • memory/2304-121-0x0000000005B80000-0x0000000005B81000-memory.dmp
    Filesize

    4KB

  • memory/2304-127-0x0000000004650000-0x00000000058E8000-memory.dmp
    Filesize

    18.6MB

  • memory/4016-128-0x0000000000000000-mapping.dmp