Analysis

  • max time kernel
    148s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    30-09-2021 12:08

General

  • Target

    Compensation-1027110219.xls

  • Size

    233KB

  • MD5

    76c5b3c16a42fd876d3c8648063ebefd

  • SHA1

    17eb233138408ec24ee1d300c7fdec089d534766

  • SHA256

    c0a3994bb5140514f73ecfb49ba1f8a74c2cf3c31dde10c79fa5b8f615ce16b4

  • SHA512

    e50ac5cff53c6d014b73db0a1de64fd3904fb9b55b65c0278d284fda0b9fa4d6b0a5038f6cfc3618b13103d64dbbcb81ca40b5a27621a00090f6d53a03f0eedc

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://safalerp.com/J1wlINw7HtJ/siera.xml

xlm40.dropper

https://godschildrenaf.org/qxwbRMzrqoWK/siera.xml

xlm40.dropper

https://callgirlsandescortkenya.site/hllzvTuU/siera.xml

Extracted

Family

qakbot

Version

402.363

Botnet

tr

Campaign

1632817399

C2

105.198.236.99:443

140.82.49.12:443

37.210.152.224:995

89.101.97.139:443

81.241.252.59:2078

27.223.92.142:995

81.250.153.227:2222

73.151.236.31:443

47.22.148.6:443

122.11.220.212:2222

120.151.47.189:443

199.27.127.129:443

216.201.162.158:443

136.232.34.70:443

76.25.142.196:443

181.118.183.94:443

120.150.218.241:995

185.250.148.74:443

95.77.223.148:443

75.66.88.33:443

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Qakbot/Qbot

    Qbot or Qakbot is a sophisticated worm with banking capabilities.

  • Loads dropped DLL 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Compensation-1027110219.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1588
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
      2⤵
      • Process spawned unexpected child process
      PID:3740
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Datop\test1.test
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3504
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2644
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn lscajwiqo /tr "regsvr32.exe -s \"C:\Datop\test1.test\"" /SC ONCE /Z /ST 12:11 /ET 12:23
            5⤵
            • Creates scheduled task(s)
            PID:1740
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
      2⤵
      • Process spawned unexpected child process
      PID:1480
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Datop\test1.test"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Datop\test1.test"
      2⤵
      • Loads dropped DLL
      PID:664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Datop\test1.test

    MD5

    613ba8d3c34e8fa5c5a08f998719ee71

    SHA1

    4e28cebb44165de63a14fade2eaab89626bd1efb

    SHA256

    3889086935fd4818ec652f34cc8dfde7a071492fe5a50f5b523bdbe9acaa2861

    SHA512

    462af6967004a8a554980442903adc75ef22f205d201f192903645d63f883cefa329104a4d90927360e4b5d8306595157287a520af34ccb683ea0011f73a6746

  • C:\Datop\test1.test

    MD5

    613ba8d3c34e8fa5c5a08f998719ee71

    SHA1

    4e28cebb44165de63a14fade2eaab89626bd1efb

    SHA256

    3889086935fd4818ec652f34cc8dfde7a071492fe5a50f5b523bdbe9acaa2861

    SHA512

    462af6967004a8a554980442903adc75ef22f205d201f192903645d63f883cefa329104a4d90927360e4b5d8306595157287a520af34ccb683ea0011f73a6746

  • \Datop\test1.test

    MD5

    613ba8d3c34e8fa5c5a08f998719ee71

    SHA1

    4e28cebb44165de63a14fade2eaab89626bd1efb

    SHA256

    3889086935fd4818ec652f34cc8dfde7a071492fe5a50f5b523bdbe9acaa2861

    SHA512

    462af6967004a8a554980442903adc75ef22f205d201f192903645d63f883cefa329104a4d90927360e4b5d8306595157287a520af34ccb683ea0011f73a6746

  • \Datop\test1.test

    MD5

    613ba8d3c34e8fa5c5a08f998719ee71

    SHA1

    4e28cebb44165de63a14fade2eaab89626bd1efb

    SHA256

    3889086935fd4818ec652f34cc8dfde7a071492fe5a50f5b523bdbe9acaa2861

    SHA512

    462af6967004a8a554980442903adc75ef22f205d201f192903645d63f883cefa329104a4d90927360e4b5d8306595157287a520af34ccb683ea0011f73a6746

  • memory/664-299-0x0000000000000000-mapping.dmp

  • memory/1480-281-0x0000000000000000-mapping.dmp

  • memory/1588-123-0x00007FFA03070000-0x00007FFA03080000-memory.dmp

    Filesize

    64KB

  • memory/1588-116-0x00007FFA03070000-0x00007FFA03080000-memory.dmp

    Filesize

    64KB

  • memory/1588-117-0x00007FFA03070000-0x00007FFA03080000-memory.dmp

    Filesize

    64KB

  • memory/1588-122-0x00007FFA235B0000-0x00007FFA2469E000-memory.dmp

    Filesize

    16.9MB

  • memory/1588-115-0x00007FF60B1D0000-0x00007FF60E786000-memory.dmp

    Filesize

    53.7MB

  • memory/1588-118-0x00007FFA03070000-0x00007FFA03080000-memory.dmp

    Filesize

    64KB

  • memory/1588-119-0x00007FFA03070000-0x00007FFA03080000-memory.dmp

    Filesize

    64KB

  • memory/1588-124-0x00007FFA216B0000-0x00007FFA235A5000-memory.dmp

    Filesize

    31.0MB

  • memory/1740-294-0x0000000000000000-mapping.dmp

  • memory/2644-297-0x0000000003500000-0x0000000003521000-memory.dmp

    Filesize

    132KB

  • memory/2644-293-0x0000000000000000-mapping.dmp

  • memory/3504-292-0x0000000004600000-0x0000000004601000-memory.dmp

    Filesize

    4KB

  • memory/3504-290-0x0000000010000000-0x0000000010021000-memory.dmp

    Filesize

    132KB

  • memory/3504-291-0x0000000010000000-0x0000000010082000-memory.dmp

    Filesize

    520KB

  • memory/3504-286-0x0000000000000000-mapping.dmp

  • memory/3740-277-0x0000000000000000-mapping.dmp

  • memory/3836-279-0x0000000000000000-mapping.dmp