Analysis

  • max time kernel
    147s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23-11-2020 14:40

General

  • Target

    ywrmkr.exe

  • Size

    1.0MB

  • MD5

    2499580589aabd07d55375d429e9d163

  • SHA1

    e6287dcaf977bb16e25eb5228982c18e16184370

  • SHA256

    697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

  • SHA512

    abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

Malware Config

Extracted

Family

qakbot

Botnet

notset

Campaign

1604404534

Credentials

  • Protocol:
    ftp
  • Host:
    192.185.5.208
  • Port:
    21
  • Username:
    logger@dustinkeeling.com
  • Password:
    NxdkxAp4dUsY

  • Protocol:
    ftp
  • Host:
    162.241.218.118
  • Port:
    21
  • Username:
    logger@misterexterior.com
  • Password:
    EcOV0DyGVgVN

  • Protocol:
    ftp
  • Host:
    69.89.31.139
  • Port:
    21
  • Username:
    cpanel@vivekharris-architects.com
  • Password:
    fcR7OvyLrMW6!

  • Protocol:
    ftp
  • Host:
    169.207.67.14
  • Port:
    21
  • Username:
    cpanel@dovetailsolar.com
  • Password:
    eQyicNLzzqPN
C2

67.6.55.77:443

89.136.39.108:443

2.50.58.76:443

188.25.158.61:443

45.63.107.192:995

45.32.154.10:443

94.52.160.116:443

45.63.107.192:2222

45.63.107.192:443

72.204.242.138:465

84.117.176.32:443

95.77.223.148:443

47.146.39.147:443

41.225.13.128:8443

80.14.209.42:2222

190.220.8.10:995

66.76.105.194:443

105.101.69.242:443

89.33.87.107:443

75.136.40.155:443

Signatures

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe
    "C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe
      C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe /C
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1736
    • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:384
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1552
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn hlwgzvlg /tr "\"C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe\" /I hlwgzvlg" /SC ONCE /Z /ST 15:47 /ET 15:59
      2⤵
      • Creates scheduled task(s)
      PID:1672
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {6D32502F-9A01-4690-92AE-2DFBE5EC5247} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe
      C:\Users\Admin\AppData\Local\Temp\ywrmkr.exe /I hlwgzvlg
      2⤵
        PID:1248

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.dat
      MD5

      91b5a17ab7364a5287daea1e99fb1d72

      SHA1

      7077d7aa8a0ce29ed8f1662adf1e50c62dde3d5c

      SHA256

      0c65e0c34bd113ec22b9c93af6b59a8fffa539789a42474076ff01c31b0a3235

      SHA512

      4ab64584639da9446f3c8ba5764317f6010709657ffb9afbd43899c809ad58c9964624554034e5b4ff2c413b49b92e811520c926b9d078fed6e0bb5b60ca7805

    • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      MD5

      2499580589aabd07d55375d429e9d163

      SHA1

      e6287dcaf977bb16e25eb5228982c18e16184370

      SHA256

      697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

      SHA512

      abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

    • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      MD5

      2499580589aabd07d55375d429e9d163

      SHA1

      e6287dcaf977bb16e25eb5228982c18e16184370

      SHA256

      697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

      SHA512

      abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

    • C:\Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      MD5

      2499580589aabd07d55375d429e9d163

      SHA1

      e6287dcaf977bb16e25eb5228982c18e16184370

      SHA256

      697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

      SHA512

      abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

    • \??\PIPE\wkssvc
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • \Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      MD5

      2499580589aabd07d55375d429e9d163

      SHA1

      e6287dcaf977bb16e25eb5228982c18e16184370

      SHA256

      697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

      SHA512

      abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

    • \Users\Admin\AppData\Roaming\Microsoft\Ekmrpjzhm\yaeylfie.exe
      MD5

      2499580589aabd07d55375d429e9d163

      SHA1

      e6287dcaf977bb16e25eb5228982c18e16184370

      SHA256

      697715b1e3a2add307adfb3f5637d81647994f9cd085e3db4252e18acda67455

      SHA512

      abfcf2a046505e536bc9d8e080c80de92c5d57b37ed067787a3b84c1e2937a2ee1e466828f8646a1eedbaf21dfc3b7703a4b40755bebbd7123f99c4b87a9b2bc

    • memory/384-10-0x0000000002760000-0x0000000002771000-memory.dmp
      Filesize

      68KB

    • memory/384-8-0x0000000000000000-mapping.dmp
    • memory/876-4-0x0000000000000000-mapping.dmp
    • memory/876-11-0x00000000003B0000-0x00000000003EA000-memory.dmp
      Filesize

      232KB

    • memory/1248-15-0x0000000000000000-mapping.dmp
    • memory/1552-12-0x0000000000000000-mapping.dmp
    • memory/1672-6-0x0000000000000000-mapping.dmp
    • memory/1736-0-0x0000000000000000-mapping.dmp
    • memory/1736-1-0x0000000002720000-0x0000000002731000-memory.dmp
      Filesize

      68KB