Resubmissions

26-08-2021 15:28

210826-blwj5wwjsn 10

26-08-2021 09:06

210826-ae6ksmbjc2 10

Analysis

  • max time kernel
    142s
  • max time network
    192s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-08-2021 09:06

General

  • Target

    tepserv.exe

  • Size

    1.1MB

  • MD5

    0884288b2df269ff9b34fddff3eb3208

  • SHA1

    1480a8543b3c1fd4d26dc30fb60b8f9e1306aa0b

  • SHA256

    1ebddf22053d7670fc06fae9e4e2ff41cd48054f563ccab3c7561c6d1f989e91

  • SHA512

    f5ab8884eac60f2a4026b512491bde6cd8cd7df79f7d00c7f9dd8cbd1871ed5d981f7785481fa12446c217e4bed1ea7cc931a9d47dad5bd3ffa9c54db9c1320e

Malware Config

Extracted

Family

danabot

Version

2029

Botnet

4

C2

23.229.29.48:443

5.9.224.204:443

192.210.222.81:443

Attributes
  • embedded_hash

    0E1A7A1479C37094441FA911262B322A

rsa_privkey.plain
rsa_pubkey.plain

Signatures

  • Danabot

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

  • Danabot Loader Component 11 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 8 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
  • Checks processor information in registry 2 TTPs 21 IoCs

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

  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tepserv.exe
    "C:\Users\Admin\AppData\Local\Temp\tepserv.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2000
    • 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:828
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\TEPSER~1.DLL,EwcMQQ==
        3⤵
        • Loads dropped DLL
        • Checks processor information in registry
        PID:1616

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PROGRA~3\Gskyj.tmp

    MD5

    2c10e49aac8c65795942d220a22117e5

    SHA1

    642ba504cc8ed959cfd9a8929783d1acf4dd768b

    SHA256

    b71d30a075734d2f1130ca2c47f57d03a308e2c7e430ec29452a786df130a98b

    SHA512

    d6e287ae2301e4fa0647462c332c6b3423e437a4a49117c7905e571949c062ab3ef3083d068aec914a8ad36db83782434d66937ce2b3e4042deaf7956c174af3

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

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

    MD5

    5df9d02ca48ab22ccc4fd792f7d126f2

    SHA1

    b238eaedafeb334c69af84cc4b768c72e9323089

    SHA256

    62c0afa119f36b56707dcdf500e6783fcb6da5bd0e3ac4e1d365e2ad832953e4

    SHA512

    9bd1764612ccb0d3bfd2bd55cfc1afc2bc9efc7aa613a641f5acd3fa5594b3749c1f12c273b3ed6646eeb98a6ab528cb58a8cdbe5876c8fbc4713a0955ddb919

  • memory/828-70-0x0000000002420000-0x0000000002421000-memory.dmp

    Filesize

    4KB

  • memory/828-69-0x0000000001E20000-0x0000000001F82000-memory.dmp

    Filesize

    1.4MB

  • memory/828-62-0x0000000000000000-mapping.dmp

  • memory/828-79-0x00000000024A0000-0x0000000003738000-memory.dmp

    Filesize

    18.6MB

  • memory/1616-71-0x0000000000000000-mapping.dmp

  • memory/1616-77-0x0000000001E10000-0x0000000001F72000-memory.dmp

    Filesize

    1.4MB

  • memory/1616-80-0x0000000002290000-0x0000000002291000-memory.dmp

    Filesize

    4KB

  • memory/1616-81-0x0000000002690000-0x0000000003928000-memory.dmp

    Filesize

    18.6MB

  • memory/2000-60-0x00000000046A0000-0x00000000047A6000-memory.dmp

    Filesize

    1.0MB

  • memory/2000-59-0x0000000075D11000-0x0000000075D13000-memory.dmp

    Filesize

    8KB

  • memory/2000-61-0x0000000000400000-0x0000000002DA2000-memory.dmp

    Filesize

    41.6MB