Analysis

  • max time kernel
    130s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23-11-2020 14:40

General

  • Target

    nrebmi.exe

  • Size

    1.0MB

  • MD5

    6723fc6fdda01dd9274b76a085fa2905

  • SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

  • SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

  • SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

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 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\nrebmi.exe
    "C:\Users\Admin\AppData\Local\Temp\nrebmi.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Users\Admin\AppData\Local\Temp\nrebmi.exe
      C:\Users\Admin\AppData\Local\Temp\nrebmi.exe /C
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1104
    • C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe /C
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:1992
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:540
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn rybpvhzzc /tr "\"C:\Users\Admin\AppData\Local\Temp\nrebmi.exe\" /I rybpvhzzc" /SC ONCE /Z /ST 14:39 /ET 14:51
      2⤵
      • Creates scheduled task(s)
      PID:1820
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B2F27998-CF23-498E-9491-686785176F89} S-1-5-18:NT AUTHORITY\System:Service:
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Local\Temp\nrebmi.exe
      C:\Users\Admin\AppData\Local\Temp\nrebmi.exe /I rybpvhzzc
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:772

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\Dypymdmaujjo\obyemif.dat
    MD5

    3fd5934c50f20de5910751d2c91ff3fe

    SHA1

    3787d415d98c94b62e7bbe324b68caec2a474a93

    SHA256

    a49e1102ab7e8227bd30885ba5dde1d7290d541be859520d971c3c5836b23b7d

    SHA512

    ea2bca7b48c28717d1f08cdffed15839765852c18f0ecdb4ce9d53340f8310ed1959358f6402a756e71f94192d642c26822442ca8f2a74d350dd4eb6d5809004

  • C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
    MD5

    6723fc6fdda01dd9274b76a085fa2905

    SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

    SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

    SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

  • C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
    MD5

    6723fc6fdda01dd9274b76a085fa2905

    SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

    SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

    SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

  • C:\Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
    MD5

    6723fc6fdda01dd9274b76a085fa2905

    SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

    SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

    SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

  • \Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
    MD5

    6723fc6fdda01dd9274b76a085fa2905

    SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

    SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

    SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

  • \Users\Admin\AppData\Roaming\Microsoft\Dypymdmaujjo\obyemif.exe
    MD5

    6723fc6fdda01dd9274b76a085fa2905

    SHA1

    62136136d77a464ac420f3a60cbd784d449e6de6

    SHA256

    ab6621166ad3604c72c37eabd074f9b14ad1da9bec6f2b406cae961c45678762

    SHA512

    6a73d09bec55f20ec9a59fd7db7362f42a4dce7f9a62e49a7f36e17bffb2f29148e9d9c02004543829c66c4ab7aeaa87bb624987a8096f6def7c3cc061996503

  • memory/540-12-0x0000000000000000-mapping.dmp
  • memory/772-14-0x0000000000000000-mapping.dmp
  • memory/1104-1-0x00000000026D0000-0x00000000026E1000-memory.dmp
    Filesize

    68KB

  • memory/1104-0-0x0000000000000000-mapping.dmp
  • memory/1820-6-0x0000000000000000-mapping.dmp
  • memory/1840-4-0x0000000000000000-mapping.dmp
  • memory/1840-11-0x00000000003B0000-0x00000000003EA000-memory.dmp
    Filesize

    232KB

  • memory/1992-10-0x0000000002620000-0x0000000002631000-memory.dmp
    Filesize

    68KB

  • memory/1992-8-0x0000000000000000-mapping.dmp