Analysis

  • max time kernel
    92s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 03:01

General

  • Target

    4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaN.exe

  • Size

    128KB

  • MD5

    c8c15e8ec3023d00a8e8dd097d69e860

  • SHA1

    26ab885bd15ad8ee174b94c13a2b0bfdf36289f5

  • SHA256

    4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cda

  • SHA512

    2ed6a29630a4a3a7a191dc5d59079702c0fef1047ec4939ec376201cb3dbd64be5ededa48fa4a111519b1f3973025372e66fb3103c16d85b3448acfab55bcfcc

  • SSDEEP

    1536:C+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE6whdYpY6RDXCDMmjs2pxSPX:5ROzoTq0+RO7IwnY6w7DZ6/HGCH

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 1 IoCs

    Bdaejec is backdoor written in C++.

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaN.exe
    "C:\Users\Admin\AppData\Local\Temp\4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\mseul.exe
      C:\Users\Admin\AppData\Local\Temp\mseul.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3064
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\09523cf0.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1360
    • C:\Users\Admin\AppData\Local\Temp\4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaNSrv.exe
      C:\Users\Admin\AppData\Local\Temp\4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaNSrv.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3876
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4604
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4604 CREDAT:17410 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1264
    • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3884
      • C:\Program Files (x86)\Microsoft\DesktopLayerSrv.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayerSrv.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2224
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3988
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3988 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4812
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:224
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:224 CREDAT:17410 /prefetch:2
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

    Filesize

    128KB

    MD5

    c8c15e8ec3023d00a8e8dd097d69e860

    SHA1

    26ab885bd15ad8ee174b94c13a2b0bfdf36289f5

    SHA256

    4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cda

    SHA512

    2ed6a29630a4a3a7a191dc5d59079702c0fef1047ec4939ec376201cb3dbd64be5ededa48fa4a111519b1f3973025372e66fb3103c16d85b3448acfab55bcfcc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    043565b7c83bfd884eb1fde2e7ccdcc5

    SHA1

    1a3239dfa9752084ed7465130943c5d912df308d

    SHA256

    80a1700dd6e600a6b8fa4a0f2a118778c903d2966690103d7e582407fb447126

    SHA512

    1c987485aed7cbe03747cb28f035f799c78b48781991da89a09462e190b2aff3ec1eae0ba0c8a6be9cedde19387b4ed95394ca9d01dac24632aa48f8a3e22257

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    1732ac1fa51975a919944d5d77eb4f11

    SHA1

    973299bd589a241fe620d3af7136c2ef5455a00c

    SHA256

    65372a401282e3f1b064cd9d09dc3f93af4276abcd1f594e0adb9070eccf3c99

    SHA512

    47795983a3d8c18abcb120e13d1a82f682ac6ca080ff12203e46d13a00c0f9a90900b9f78f334bd17edd0929a886c3613087b6e49d23ea24b8f4d166fbedf5c1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    e0156eb1658451dc86c0edd80df8129f

    SHA1

    8a9b16d2ee6866dbb4b0bddfa9592930a83de94e

    SHA256

    b005fbe8f89160b1a9c42ac0efdeba1e10abeb8da96e3d2782555efc97a5c0ac

    SHA512

    3b40e54808b11c239bdc7338f7bc8eab88b1a9ba321295186bb99f8a1967a5bce95e181fb37a079e728e73ecd6835c3cdcc6f453121961240ef673fc8a8c23a5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    3e2614266059766da444a50f634abad2

    SHA1

    b330f5f0dbdd484d32135c4e21c51c3c94b75d02

    SHA256

    20a242dc691c673d7645a2049cd19d838a45fcba2055736ba33fa223d7792757

    SHA512

    d10f1bcfd8fe58df27740ffe7fbb3e8365cfdbac182d6ac963a381f5456c97cda4b5ba96d7911e2737c252bae3422e241a07eccc284bd5445868735c0d65a2e0

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{95AC63B3-B447-11EF-AF2A-FA9F886F8D04}.dat

    Filesize

    3KB

    MD5

    482cf5b60f5a2450b5732e4156a652bc

    SHA1

    24649cae8953cf10f53c9d4d13107846c1eda733

    SHA256

    950e8f351138a47ec9d34998ab712a381fe425c26da54ff6b513c22a69f4425d

    SHA512

    53faf2b14ddc1935930f4b888b19e9269226e6580bc529edccafbb0ff0be925c30f322d32c96f724b8d1690c0390f7128672c1c4f584f7f72d85992d519c5af7

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{95BD1038-B447-11EF-AF2A-FA9F886F8D04}.dat

    Filesize

    3KB

    MD5

    062e88cb83a32ed861dc392a3ee98307

    SHA1

    fee82b2b3e3f587fd50d9437df01e5dfe316d4b7

    SHA256

    4897b6815b002a13c875e8e46f20db10e7a57cdda219337aefe571326894b691

    SHA512

    46cf595e92bcaa5d12c115ca6dc5453328a9259e38c9fbce7b55264ca34b8aeaa8d410c88c52a5db7c107be90340a29be8babacd849976d250f970596340c4f4

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{95BD1038-B447-11EF-AF2A-FA9F886F8D04}.dat

    Filesize

    5KB

    MD5

    418be01720c62950e1fb504faf64b098

    SHA1

    33594ead9a6cad937d340de0ae16da3b219c1d4e

    SHA256

    1c92e3c690556ae74f551e1e3b1ae7f3187344853638d2367866c58fdaadb75d

    SHA512

    c00048c2dc4f996fac2cf462ef04d5e666669618a3a401b625543b0958c2c81c06d17bac7964edf7dfb200a48c53957eadb6f70118971f310c7bcc409e2b3264

  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver4CA4.tmp

    Filesize

    15KB

    MD5

    1a545d0052b581fbb2ab4c52133846bc

    SHA1

    62f3266a9b9925cd6d98658b92adec673cbe3dd3

    SHA256

    557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

    SHA512

    bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\09523cf0.bat

    Filesize

    185B

    MD5

    6c866f17051403df1155d07fc391fd41

    SHA1

    e8b9390cb4d231f3ab70a7bdd971cc35b6e26c77

    SHA256

    c1a638af066fcf1053f69badf0a93e386a2e6c517daa1b4998f80b26ecab36f4

    SHA512

    374615b6f4e599c444507352c466dffad224fa5e07dec7ca0e89aae9083eb614b3b26d4fce3ff7f7c0b32747708b7a1f415fa705a1e8997fee4d45e7b15ec247

  • C:\Users\Admin\AppData\Local\Temp\4be5fbb396096daf3ca50b11ae732113787ca43256904369b12cd97246a43cdaNSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Users\Admin\AppData\Local\Temp\650C032D.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\mseul.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2008-0-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2008-10-0x0000000000570000-0x000000000057F000-memory.dmp

    Filesize

    60KB

  • memory/2008-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2224-34-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3064-79-0x0000000000B00000-0x0000000000B09000-memory.dmp

    Filesize

    36KB

  • memory/3064-4-0x0000000000B00000-0x0000000000B09000-memory.dmp

    Filesize

    36KB

  • memory/3876-13-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3876-24-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3876-29-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3876-18-0x0000000000490000-0x0000000000491000-memory.dmp

    Filesize

    4KB

  • memory/3876-16-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3884-22-0x0000000000590000-0x0000000000591000-memory.dmp

    Filesize

    4KB

  • memory/3884-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3884-28-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3884-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB