Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 17:58

General

  • Target

    530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe

  • Size

    760KB

  • MD5

    20d75709d275ee9fc5b559e50ae667c3

  • SHA1

    27b41abb5cf6a0492fbd44db949ed78629548ee6

  • SHA256

    530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a

  • SHA512

    0987ce0ae8d3447034f76b11ab618b8b92f73d0e5ed50d2e5a0ba204f0a8cf830ed4795abbeebe72c035ecfa3e96391756cda8cb7f064f183cdb4554510be64f

  • SSDEEP

    12288:GtomEHbPc17d211S7nu/s6dSf/5vJ6UuWsz6MNwXLLKqKUGpjSvI0Z:TN7Pi7Iw1aSz6n16ewXLu9UKjSvI0Z

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.87:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-UOMZ21

  • 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.

  • Remcos family
  • Detected Nirsoft tools 9 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe
    "C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe
      "C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3960
      • C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe
        C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe /stext "C:\Users\Admin\AppData\Local\Temp\eyndimgaoumwfuqzvcnb"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:5100
      • C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe
        C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe /stext "C:\Users\Admin\AppData\Local\Temp\gstwjerukcejpaedemavmeb"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1756
      • C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe
        C:\Users\Admin\AppData\Local\Temp\530d877fd245da9636806e92b1b3271ccbdb89c4e08e534171469b70f2f7dc7a.exe /stext "C:\Users\Admin\AppData\Local\Temp\qmyokxcvykwoshapvxuwxjwxksc"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    77496a95e7369fdbccfb238dffaf29e2

    SHA1

    c647100fa33ac4ee03662ba65264f3c6a1317263

    SHA256

    2c33bc4f1e89dd02af9a85f29ee540391570d369b57194f24d18239e93157e4a

    SHA512

    564c8bb5643129481f72144bd826c77f7bc7c4b9c85a2f7f919416250f477f37c64d82a26565cd2f2063b10204964bd5cc9096ecc1dcf2858d0d8eb4ecc85cc9

  • C:\Users\Admin\AppData\Local\Temp\eyndimgaoumwfuqzvcnb

    Filesize

    4KB

    MD5

    60a0bdc1cf495566ff810105d728af4a

    SHA1

    243403c535f37a1f3d5f307fc3fb8bdd5cbcf6e6

    SHA256

    fd12da9f9b031f9fa742fa73bbb2c9265f84f49069b7c503e512427b93bce6d2

    SHA512

    4445f214dbf5a01d703f22a848b56866f3f37b399de503f99d40448dc86459bf49d1fa487231f23c080a559017d72bcd9f6c13562e1f0bd53c1c9a89e73306a5

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    71B

    MD5

    fa03f87568cc498e445851fdc25e6650

    SHA1

    0e22fbef177db71831aad63f1185f3886a0e440a

    SHA256

    70575dfd32af5bdea9244096f613f64ddbed3f1ccab2f30764bbfe47f01f3c3c

    SHA512

    1d2ebe36663d54525c0980cc36f967c584e3849b8dd6e77f0092157879b1ebdbed1d0e50f08c41365cca356dca3df41f21f7725fe1665d5ffd7826ff5b1fa5be

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    74B

    MD5

    16d513397f3c1f8334e8f3e4fc49828f

    SHA1

    4ee15afca81ca6a13af4e38240099b730d6931f0

    SHA256

    d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36

    SHA512

    4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    18B

    MD5

    1a42166fa1e8a360271d4fb25c78fbda

    SHA1

    f4d1ad6ecdc1202a2c08c03514ec814072b818d2

    SHA256

    b271abd85535886a3753ee0a5e8957a1bf2e502c4a275d1d8f7f5ddf3b7de292

    SHA512

    ee3342a9a407bfe56e7c65c1f1c0b15624fbffc60c88ff9e404a1dbebcfd606f42de8cb61624f992f57fca2e05d75a64611a78e508c7772ffaeb9c5924c87c0c

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    44B

    MD5

    a11292439456c3877dd223273f88ce2f

    SHA1

    cbde8e81b850762530c0d960a82eda5ca399e538

    SHA256

    d02310dee3ced92a0be280296fb733c94858c06d62a6eb7fe22cdd38f3fe8ae5

    SHA512

    e4cc180decc607ff549be52de094226d8f2080124fe2e3391a371ab5293294373d910a17f8578dce50ab5e8b20061913f6c378b7258f599a6d9d8ff968f61e7d

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    57B

    MD5

    0b66f70a086797e3c9d810089c376755

    SHA1

    aa9a99dcae2c50513922413999a555bc89af69b1

    SHA256

    80eb66b392cf670bb4afede5a57488fc9e9166f9a8c492f290d150c834e1e6aa

    SHA512

    83461cf2e760708cbdf9a083594c63f55e4b2d90166d5ba3b3f06e1e35e3b9be2c6d1a97da5b7ac04a444d4c6ab04da11adf8a0a1a268597c1e6f3022c8445f1

  • C:\Users\Admin\AppData\Local\Temp\nsbBB63.tmp

    Filesize

    58B

    MD5

    0b29799f668498e44f469590f92136a6

    SHA1

    477022e40d3b1f1f06f5e6c0404450af702db6eb

    SHA256

    9b9b769252e232ac369f61922b79f5656a4f4d744e39114bd389d0a56469ce3f

    SHA512

    d987b05f4085bc9d3640e496f002e068649a2859f0aa6c538de03ffac0f766dc0009a6f532809e579655ad5677a150834447670fb2774d1bdd33b70542ff3ef9

  • C:\Users\Admin\AppData\Local\Temp\nsbBC51.tmp

    Filesize

    56B

    MD5

    2a8dfc4215838ce8d954bcff8953b756

    SHA1

    cebf9d7f11f532eaa0fe550ef52bf70fddda467a

    SHA256

    ba47e738c0828ba56f6bdc98e96919790b83295a1460c773b930cc52747f9e76

    SHA512

    809c8db67849dc9337f7e9e827e3caa95aafa41235ad7b4ca614eb3089e8f5792dc7ba066bded856a19096583c73245b5015b12a01a81256382885ffa8ec505b

  • C:\Users\Admin\AppData\Local\Temp\nsqBBC1.tmp\System.dll

    Filesize

    11KB

    MD5

    ca332bb753b0775d5e806e236ddcec55

    SHA1

    f35ef76592f20850baef2ebbd3c9a2cfb5ad8d8f

    SHA256

    df5ae79fa558dc7af244ec6e53939563b966e7dbd8867e114e928678dbd56e5d

    SHA512

    2de0956a1ad58ad7086e427e89b819089f2a7f1e4133ed2a0a736adc0614e8588ebe2d97f1b59ab8886d662aeb40e0b4838c6a65fbfc652253e3a45664a03a00

  • C:\Users\Admin\AppData\Local\Temp\nsqBBC2.tmp

    Filesize

    8B

    MD5

    c3cb69218b85c3260387fb582cb518dd

    SHA1

    961c892ded09a4cbb5392097bb845ccba65902ad

    SHA256

    1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

    SHA512

    2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

  • C:\Users\Admin\AppData\Local\Temp\nsqBBC2.tmp

    Filesize

    9B

    MD5

    2b3884fe02299c565e1c37ee7ef99293

    SHA1

    d8e2ef2a52083f6df210109fea53860ea227af9c

    SHA256

    ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858

    SHA512

    aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

  • C:\Users\Admin\AppData\Local\Temp\nsqBBC2.tmp

    Filesize

    45B

    MD5

    34d32f9b446e46883ec3157794403748

    SHA1

    e797e81a28e395ea751871b21e638e43d62d0f61

    SHA256

    a66d886953526d5601da515e1aa53a3f8cbc829aedd557cdf4d0f9573793486e

    SHA512

    48b0f49ca3604f5a21cb2b850ac19771a17e0fa03cf0b3d6e616e330f136c71dcc623ac36b5b801c4fda203327290b8e3f5ec01a0ea546a87c2ae89a88b74ed1

  • C:\Users\Admin\AppData\Local\Temp\nsqBBC2.tmp

    Filesize

    52B

    MD5

    5d04a35d3950677049c7a0cf17e37125

    SHA1

    cafdd49a953864f83d387774b39b2657a253470f

    SHA256

    a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266

    SHA512

    c7b1afd95299c0712bdbc67f9d2714926d6ec9f71909af615affc400d8d2216ab76f6ac35057088836435de36e919507e1b25be87b07c911083f964eb67e003b

  • C:\Users\Admin\AppData\Local\Temp\nsqBC11.tmp

    Filesize

    25B

    MD5

    cc98cdbdb6e4571f9dbef3d7ef0cecb6

    SHA1

    0c6c945dacb7dc9269bb8659e61b6bd44e03b5f4

    SHA256

    fdd17f70c2c855ed3b81bf41d2dbff3a0d85a7f7b019f04c569f897188e0d3b3

    SHA512

    83a41e73d62f77faf633e3fc5fb4f0ee4984881dc7ed5bbfcd73be815c89a606349cb0adf5de1552cfd0ca0ff3d7bd9c2332658586e582158e53777e2fcfba4c

  • C:\Users\Admin\AppData\Local\Temp\nsqBC11.tmp

    Filesize

    60B

    MD5

    7ed75a71351bfc4eaabfc06754e83a71

    SHA1

    b588df2f060e1356e9950344d31dc8b566ea5e43

    SHA256

    2d45fd2175ad61122ca69dc5fb613b7cfc525c489f08942b81c9f7546ab303c6

    SHA512

    2e92b886fb3149912a627bdccada189179aa7e04600177def15270b7346e0da45db52ddaa75e9e6d40458c8d0bba870cfceda39c160865060d4f11f11b9f6a6f

  • memory/1756-606-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1756-591-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1756-594-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1756-596-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1756-598-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2376-575-0x0000000076F71000-0x0000000077091000-memory.dmp

    Filesize

    1.1MB

  • memory/2376-576-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB

  • memory/3960-616-0x00000000382A0000-0x00000000382B9000-memory.dmp

    Filesize

    100KB

  • memory/3960-577-0x0000000076FF8000-0x0000000076FF9000-memory.dmp

    Filesize

    4KB

  • memory/3960-645-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-642-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-639-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-636-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-633-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-587-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-630-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-581-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-585-0x0000000076F71000-0x0000000077091000-memory.dmp

    Filesize

    1.1MB

  • memory/3960-627-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-624-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-580-0x0000000000480000-0x00000000016D4000-memory.dmp

    Filesize

    18.3MB

  • memory/3960-622-0x0000000076F71000-0x0000000077091000-memory.dmp

    Filesize

    1.1MB

  • memory/3960-579-0x0000000076F71000-0x0000000077091000-memory.dmp

    Filesize

    1.1MB

  • memory/3960-578-0x0000000077015000-0x0000000077016000-memory.dmp

    Filesize

    4KB

  • memory/3960-620-0x00000000382A0000-0x00000000382B9000-memory.dmp

    Filesize

    100KB

  • memory/3960-619-0x00000000382A0000-0x00000000382B9000-memory.dmp

    Filesize

    100KB

  • memory/5040-607-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/5040-597-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/5040-603-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/5040-605-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/5040-610-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/5100-613-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5100-590-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5100-595-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5100-604-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5100-592-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB