Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 05:42

General

  • Target

    d30e71d321786a1cda09b0c75d408a8541b6167b6753de08f46504d90d2af129.msi

  • Size

    4.0MB

  • MD5

    bce2b57d15105b59a838eb1bd12aa7ee

  • SHA1

    81d4e952363ec181cd06007fbbd5a8b83cce51cf

  • SHA256

    d30e71d321786a1cda09b0c75d408a8541b6167b6753de08f46504d90d2af129

  • SHA512

    4fd8dee6ca059a1174ceed13d86843c03150424ff06305e5d35fac0e3a66a28e477fe19a138c2526ad87ccadb9251d68ebbf6d024e053959dee698a8140b499a

  • SSDEEP

    98304:xptfJOkKJqbdkE3GCIA/DCSlT/IZY//xEYQvjGkvUco5B1:151xkE3G8XIKB27dMco5

Malware Config

Extracted

Family

remcos

Botnet

BACKUP_PIP

C2

heavytank21gh.com:4422

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    info.dat

  • keylog_flag

    false

  • keylog_folder

    tmpdata

  • mouse_option

    false

  • mutex

    aujifbh8123-1M56R1

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Modifies file permissions 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 11 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\d30e71d321786a1cda09b0c75d408a8541b6167b6753de08f46504d90d2af129.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1232
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2480
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AC559ADD1D9A1FCC957A93955D5CC09C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4668
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:4400
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:4960
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files\nanotest.cmd" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4660
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c xcopy /s "C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files" /d C:\Users\Admin\AppData\Roaming\microsoft
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1172
          • C:\Windows\SysWOW64\xcopy.exe
            xcopy /s "C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files" /d C:\Users\Admin\AppData\Roaming\microsoft
            5⤵
            • System Location Discovery: System Language Discovery
            • Enumerates system info in registry
            PID:4520
        • C:\Users\Admin\AppData\Roaming\Microsoft\DPMHelper.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\DPMHelper.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4912
          • C:\Users\Admin\AppData\Local\streamService_beta\DPMHelper.exe
            C:\Users\Admin\AppData\Local\streamService_beta\DPMHelper.exe
            5⤵
            • Suspicious use of SetThreadContext
            • Executes dropped EXE
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1672
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\SysWOW64\cmd.exe
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:3664
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                7⤵
                • System Location Discovery: System Language Discovery
                PID:3228
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1652
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:3604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\tmpdata\info.dat

    Filesize

    144B

    MD5

    09373e1d1f9d9f4327511d36044adbfd

    SHA1

    983279e45f2e6bca76fba3ac6f765e59774fdbbb

    SHA256

    acb72b6aaf3b101c7112697b16b5b37e51990edea6904de946ae0de0826ee9d0

    SHA512

    e1ef12f207a148eb00f2d7fbf88bc90910807405f14f5e3445959f6321d495fff0e94221168efa21e7043b96995311edca8322cf81d7018c65b6227f49f5846e

  • C:\Users\Admin\AppData\Local\Temp\9b239788

    Filesize

    1.2MB

    MD5

    73048f85959115b490509ddb4ab8199d

    SHA1

    38732070bc0395fad95986af255c341a43ce62f8

    SHA256

    3357e1fedb2ef171d2d06310e667df6169f3768b21d37417d1e089deba4dbdea

    SHA512

    a58e6393ff713bbb89641875270e37157db995c8d5ffd3a88fad0b5081d02072d4860df64c8226e542ffd0eaa2ab7a2c6f26f20253eec6cb03ce418ce7f939d4

  • C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files.cab

    Filesize

    3.7MB

    MD5

    83b29af52461010cb3d6a6811e89e026

    SHA1

    9d10b6ed4659efe649f2b45f38dc70f69d957b7e

    SHA256

    61220ae6f6d018a70d869778516fcf1248ca94ad1f4bd39d0f449d6602af7102

    SHA512

    eac713d455e43ef882e7953395576f121cbac10d28ab7a29b3c9b2fb1a5fb3bbdeac2b15d20378e713f9125bd4ddaa82c94b7450112c45bd2a8623c76bacd452

  • C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files\DPMHelper.exe

    Filesize

    2.3MB

    MD5

    5d52ef45b6e5bf144307a84c2af1581b

    SHA1

    414a899ec327d4a9daa53983544245b209f25142

    SHA256

    26a24d3b0206c6808615c7049859c2fe62c4dcd87e7858be40ae8112b0482616

    SHA512

    458f47c1e4ccf41edaacc57abb663ee77ca098fffc596fad941bbdea67653aeabc79b34d607078b9ee5adb45614e26f5c28a09e8faf9532081fdd5dec9ac3c48

  • C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\files\nanotest.cmd

    Filesize

    86B

    MD5

    962bc48cda9489b1b9ae319468baf757

    SHA1

    26e5eec731f53ca5ad6b784f9a7d64c486c7d0af

    SHA256

    fa106a788f6d31e8ab65b581f80846e5ff4e0ce855fc9399531c9bdfd0a6c671

    SHA512

    dd5012633bfaa64526efdc01d9165a733bbbecf3cc4bd85a9329dfcdaa066fb4e5692c20ff9f591d3fe57fda70fa086e8fdad9312d1d0ec948ddff59a5895544

  • C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\msiwrapper.ini

    Filesize

    1KB

    MD5

    d83cc253bd98edbe7793f49bd5a8fb69

    SHA1

    7caec2fd2acf1abc0378d456413a9de10cfc9c39

    SHA256

    28f60f4deb52b65e3d28878f51332e94997a7972283ab02171b4b0ead1656392

    SHA512

    2873c5fe357b579d2e1d4b86ea95295c413f2e64caadb7f8858c549545555371f90aa3f2948cfd01c8bebae599786e30743443f3c0e49e50b34f15ef4fbaf9e4

  • C:\Users\Admin\AppData\Local\Temp\MW-333e4dba-dbe4-42c6-bcad-eec080a1750b\msiwrapper.ini

    Filesize

    1KB

    MD5

    755ee2ca86c1de87d646bd31c2451d5f

    SHA1

    48f44b4d2a968db88bc41093129372c0a4528c4c

    SHA256

    3ee0b23e3316084a0d349c9c81fb25879f656bd9368f26a4eedad39c9702aa27

    SHA512

    fe6b598ef933c9abb7bb921287616d0798769d7c3fac89a3e23d0bda2080c4ab29b86654c3bae57649a51cb7f5ecfc46a38b13588003cf80d689b4338d3839f3

  • C:\Users\Admin\AppData\Roaming\Microsoft\cmdfmt.exe

    Filesize

    2.0MB

    MD5

    3c06138c0e9b9706281dea5b5037bfbb

    SHA1

    608a2ee6adf4c3ccfb3ea25edf393f5745cb7b57

    SHA256

    82f93f71f45c1d2ea20697d01d3f5ae50761942a956384e217ba898efa63ec47

    SHA512

    bf1f360f99f0f38ef66d97d42ba689936b22c38e092533e14723974ab2f2b9ffac61446400f3379f97c7edd982c6cec62400670682855ef5482d3bcf6c567131

  • C:\Users\Admin\AppData\Roaming\Microsoft\madbasic_.bpl

    Filesize

    210KB

    MD5

    e03a0056e75d3a5707ba199bc2ea701f

    SHA1

    bf40ab316e65eb17a58e70a3f0ca8426f44f5bef

    SHA256

    7826395127e791a883359ea81308174700da0af8052cc9853b19fd29c2e4badb

    SHA512

    b0a3cfb6b34832f048fe0fc70c6fa76ae16a2cacda930f6529a83a967d6e8de1c69b93e0de3dc2126c5385d85e814687e695a0a4131399a69633141cad98da2a

  • C:\Users\Admin\AppData\Roaming\Microsoft\maddisAsm_.bpl

    Filesize

    63KB

    MD5

    d80c131cfac41ebffcb37141a81bb8a5

    SHA1

    b7e9e91a1bf6ea800803d4c867978e2f053a53ee

    SHA256

    d417b480d60126d193007db9a017755014d41643d0c00d121674a993ece8cc39

    SHA512

    9946e71e465ac5c750447fb90be695463547ea2e44bdb060433bc5ef74f306883282adb9141139fbfb4b8079f959f650622cecd890fc9403455c8a6547228895

  • C:\Users\Admin\AppData\Roaming\Microsoft\madexcept_.bpl

    Filesize

    436KB

    MD5

    98e59596edd9b888d906c5409e515803

    SHA1

    b79d73967a2df21d00740bc77ccebda061b44ab6

    SHA256

    a6ca13af74a64e4ab5ebb2d12b757cecf1a683cb9cd0ae7906db1b4b2c8a90c0

    SHA512

    ba617227849d2eb3285395e2d1babfe01902be143144be895011f0389f1860d0d7f08c6bbc4d461384eba270f866cce3351f52af1dc9ef9719c677619de79e42

  • C:\Users\Admin\AppData\Roaming\Microsoft\nanometre.bmp

    Filesize

    944KB

    MD5

    5f111e4eb86d25ba882bba36ac24bfab

    SHA1

    6fd27994a0e0d1f689699ee4c47044084cc2ba64

    SHA256

    1d85daa12a96bf69947394e184ae2619355819d2a53bdf480cb1d0549d9c58b9

    SHA512

    ab1b15e963f6d7bfa9768292727f90750d0e9b06ae8f5faa09b272f8990262ce5bc916322a84b367a53648c2c21f53d9fbbfa9c503327812707fcd78da8f7e8e

  • C:\Users\Admin\AppData\Roaming\Microsoft\rtl120.bpl

    Filesize

    1.1MB

    MD5

    1681f93e11a7ed23612a55bcef7f1023

    SHA1

    9b378bbdb287ebd7596944bce36b6156caa9ff7d

    SHA256

    7ed5369fcf0283ea18974c43dbff80e6006b155b76da7c72fa9619eb03f54cef

    SHA512

    726e8f58648a6abaf1f2d5bebcf28c1d8320551a3b6e7eef0cf8d99f9ef941e30e7004c24c98e9b5e931a86128d26de7decba202390665a005e972dcbe87ab93

  • C:\Users\Admin\AppData\Roaming\Microsoft\vcl120.bpl

    Filesize

    1.9MB

    MD5

    13a2734bb2249010514386ebc856b8da

    SHA1

    8f6e3b30f30a5bba9bc6baaf8f440e085a6a568a

    SHA256

    713c21d009000d504d9bcf3ce95d50e74d3933083783de144db0a16e2425ebcc

    SHA512

    2f108436fc1a03591802ff6b8c6ac1de1c0388b2a2a6f8839c10b5f0ec06b66775f261da4ace05fa367eb46b5be533949c092e113fe1270adedb9cb8c34ba2dd

  • C:\Users\Admin\AppData\Roaming\Microsoft\vclx120.bpl

    Filesize

    222KB

    MD5

    3cb8f7606940c9b51c45ebaeb84af728

    SHA1

    7f33a8b5f8f7210bd93b330c5e27a1e70b22f57b

    SHA256

    2feec33d1e3f3d69c717f4528b8f7f5c030caae6fb37c2100cb0b5341367d053

    SHA512

    7559cdf6c8dbea052242f3b8129979f7d2d283f84040f1d68ae10438548072715a56a5af88b8562aeea7143194e7c5bddac3fdb01ded411a0b1cac9f0c6eef3f

  • C:\Windows\Installer\MSIE01F.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108

  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

    Filesize

    23.7MB

    MD5

    38b37a936bcca777c47c2fc65ed6e036

    SHA1

    60f6b3b454647e8b224906d7f4af1290832a9dc6

    SHA256

    1a9e6873c81eda7cd06163d64fa19f64236f1fb7f2a5e49442a09cdf7c278551

    SHA512

    6883f9e7fc346b700a1eec3d7f5f131ee9210cb5a8ed074de1af273f251562675eb017297da3908e2b5a6fa41fdf6dac8de8aed55e9a3ec914a561b6bb4b1a67

  • \??\Volume{83bffa96-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c8c50642-b4cb-4894-9ec3-8882b9763a26}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    e96f25c4c1d5b19799ad7dd5fb80bf93

    SHA1

    bf81a6f3e9012ff6931a7461b1d74c14b7e0a456

    SHA256

    245e9ff5755c1bb8bef89010107268bca512d2bece5187bea121e3acd0f5097b

    SHA512

    4254dd06e134229db127d946181f7b58a0403fd2d9b981f4ee2199744736951faf2f6e00c868b454c3483a1a29adc627dc646fa67cdc68f6f2b4b9ba27298edc

  • memory/1672-205-0x0000000059800000-0x000000005986E000-memory.dmp

    Filesize

    440KB

  • memory/1672-199-0x0000000075330000-0x00000000754AB000-memory.dmp

    Filesize

    1.5MB

  • memory/1672-201-0x0000000075330000-0x00000000754AB000-memory.dmp

    Filesize

    1.5MB

  • memory/1672-204-0x0000000050000000-0x0000000050116000-memory.dmp

    Filesize

    1.1MB

  • memory/1672-208-0x0000000050120000-0x000000005030D000-memory.dmp

    Filesize

    1.9MB

  • memory/1672-209-0x0000000050310000-0x0000000050349000-memory.dmp

    Filesize

    228KB

  • memory/1672-200-0x00007FF8FAFD0000-0x00007FF8FB1C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3228-228-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-225-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-216-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-237-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-240-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-231-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-234-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-243-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-246-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-222-0x0000000000680000-0x0000000000703000-memory.dmp

    Filesize

    524KB

  • memory/3228-215-0x00007FF8FAFD0000-0x00007FF8FB1C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3664-211-0x00007FF8FAFD0000-0x00007FF8FB1C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3664-213-0x0000000075330000-0x00000000754AB000-memory.dmp

    Filesize

    1.5MB

  • memory/4912-176-0x0000000050000000-0x0000000050116000-memory.dmp

    Filesize

    1.1MB

  • memory/4912-185-0x0000000057000000-0x000000005703F000-memory.dmp

    Filesize

    252KB

  • memory/4912-174-0x0000000000400000-0x0000000000698000-memory.dmp

    Filesize

    2.6MB

  • memory/4912-180-0x0000000059800000-0x000000005986E000-memory.dmp

    Filesize

    440KB

  • memory/4912-182-0x0000000057800000-0x0000000057812000-memory.dmp

    Filesize

    72KB

  • memory/4912-183-0x0000000050120000-0x000000005030D000-memory.dmp

    Filesize

    1.9MB

  • memory/4912-186-0x0000000050310000-0x0000000050349000-memory.dmp

    Filesize

    228KB

  • memory/4912-163-0x00007FF8FAFD0000-0x00007FF8FB1C5000-memory.dmp

    Filesize

    2.0MB

  • memory/4912-153-0x0000000072FC0000-0x000000007313B000-memory.dmp

    Filesize

    1.5MB