Analysis

  • max time kernel
    145s
  • max time network
    135s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    23-04-2021 22:35

General

  • Target

    catalog-100420173.xlsm

  • Size

    109KB

  • MD5

    6b1b851a8d6effbba67f2a248e83bf8d

  • SHA1

    3b4d2589e2edfb1a1832ef92a6fd7519f83b35b7

  • SHA256

    89187e224fa57f267344301f3a4f761a042bb366f15b9ccbc3b0dae35ea24ddb

  • SHA512

    92dc55974837085ed2f8d15bfea3d1a245133da36c8601c5f23c34dc05cebd4ca0ffe961c4715d420f207c77a731b607f5328cc887c033e76134a89386cf9176

Malware Config

Extracted

Family

qakbot

Version

402.12

Botnet

tr

Campaign

1618935072

C2

140.82.49.12:443

190.85.91.154:443

96.37.113.36:993

71.41.184.10:3389

186.31.46.121:443

73.25.124.140:2222

109.12.111.14:443

24.229.150.54:995

45.32.211.207:443

45.77.117.108:443

45.77.117.108:8443

149.28.98.196:443

149.28.98.196:2222

144.202.38.185:443

144.202.38.185:995

45.32.211.207:995

207.246.116.237:995

149.28.99.97:995

45.63.107.192:2222

149.28.101.90:995

Signatures

  • Process spawned unexpected child process 2 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
  • Program crash 1 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 16 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 18 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\catalog-100420173.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\duron.bnm1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:744
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\duron.bnm2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32 ..\duron.bnm2,DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2752
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2484
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /Create /RU "NT AUTHORITY\SYSTEM" /tn zjsmkcla /tr "regsvr32.exe -s \"C:\Users\Admin\duron.bnm2\"" /SC ONCE /Z /ST 22:41 /ET 22:53
            5⤵
            • Creates scheduled task(s)
            PID:3532
  • \??\c:\windows\system32\regsvr32.exe
    regsvr32.exe -s "C:\Users\Admin\duron.bnm2"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Windows\SysWOW64\regsvr32.exe
      -s "C:\Users\Admin\duron.bnm2"
      2⤵
      • Loads dropped DLL
      PID:1516
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 596
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3948

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\duron.bnm2
    MD5

    474212e701552f22566f71a1585e8e94

    SHA1

    b07af5bd6b19593b8af14b79d73f6856053837af

    SHA256

    53bd776c525c7f8998d2504fdd2454819267d9f4eb5c1ca53b9388ce5dfcdcff

    SHA512

    f3cf97738c39c96fe2700a3b192fd4eb13546a962d406e34859e234676ef5730582276c8661bb4dfbb7248c3d9c9aea0332a27e1e13012a5f03dd88b93e0c6d4

  • C:\Users\Admin\duron.bnm2
    MD5

    ab7fbadf80b63bc78c1ddb27883e4939

    SHA1

    1f16cd0a59dfd6ce02bcaa7f66969b023050d6c4

    SHA256

    55ef29ef571a92086356d6b945387e06c1f55538d844a67bc1c99bd0e05fd99c

    SHA512

    5c49fcdbbf2a23426837a1434cfb2a60b71803e5bf5111a78c197bb2efe60f07c161db51c571197385567fd9a2951611f23c9b079825249850e436a196f49da6

  • \Users\Admin\duron.bnm2
    MD5

    474212e701552f22566f71a1585e8e94

    SHA1

    b07af5bd6b19593b8af14b79d73f6856053837af

    SHA256

    53bd776c525c7f8998d2504fdd2454819267d9f4eb5c1ca53b9388ce5dfcdcff

    SHA512

    f3cf97738c39c96fe2700a3b192fd4eb13546a962d406e34859e234676ef5730582276c8661bb4dfbb7248c3d9c9aea0332a27e1e13012a5f03dd88b93e0c6d4

  • \Users\Admin\duron.bnm2
    MD5

    ab7fbadf80b63bc78c1ddb27883e4939

    SHA1

    1f16cd0a59dfd6ce02bcaa7f66969b023050d6c4

    SHA256

    55ef29ef571a92086356d6b945387e06c1f55538d844a67bc1c99bd0e05fd99c

    SHA512

    5c49fcdbbf2a23426837a1434cfb2a60b71803e5bf5111a78c197bb2efe60f07c161db51c571197385567fd9a2951611f23c9b079825249850e436a196f49da6

  • memory/744-179-0x0000000000000000-mapping.dmp
  • memory/1348-180-0x0000000000000000-mapping.dmp
  • memory/1516-190-0x0000000000000000-mapping.dmp
  • memory/2016-121-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
    Filesize

    64KB

  • memory/2016-122-0x00007FFDEAA10000-0x00007FFDEBAFE000-memory.dmp
    Filesize

    16.9MB

  • memory/2016-114-0x00007FF6A33B0000-0x00007FF6A6966000-memory.dmp
    Filesize

    53.7MB

  • memory/2016-123-0x000001A9E8330000-0x000001A9EA225000-memory.dmp
    Filesize

    31.0MB

  • memory/2016-118-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
    Filesize

    64KB

  • memory/2016-115-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
    Filesize

    64KB

  • memory/2016-116-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
    Filesize

    64KB

  • memory/2016-117-0x00007FFDCA390000-0x00007FFDCA3A0000-memory.dmp
    Filesize

    64KB

  • memory/2484-187-0x00000000030F0000-0x0000000003129000-memory.dmp
    Filesize

    228KB

  • memory/2484-186-0x0000000000000000-mapping.dmp
  • memory/2752-182-0x0000000000000000-mapping.dmp
  • memory/2752-184-0x0000000003550000-0x00000000035C1000-memory.dmp
    Filesize

    452KB

  • memory/2752-185-0x0000000010000000-0x0000000010076000-memory.dmp
    Filesize

    472KB

  • memory/3532-188-0x0000000000000000-mapping.dmp