Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 20:18

General

  • Target

    cstealer.exe

  • Size

    11.0MB

  • MD5

    b4b661eec8fd7da2e4c192cbf8a1b15e

  • SHA1

    08269aea21c2a960f9e3a47afb97dc5468d0f4d5

  • SHA256

    8f511b93fda434147a3d0b5d05d209fb30be3c7a4ce3d4e23e83361701968bdc

  • SHA512

    6976dcd64fc0d85130bcc2ea22d2b61aa2bca6ec4286a3c87faef1dbfa988be90ec925caffd08b5cee0c36bd3f3388d93aac651f3e549740fc2c85e3e4328e5c

  • SSDEEP

    196608:UJvEkYclwuLIRBA1HeT39Iigwh1ncKOVVtcTSE37tqtQ1NjOx74U:AEkYcWxq1+TtIiFv0VQOCg6Cl

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cstealer.exe
    "C:\Users\Admin\AppData\Local\Temp\cstealer.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\cstealer.exe
      "C:\Users\Admin\AppData\Local\Temp\cstealer.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2716

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\api-ms-win-core-file-l1-2-0.dll

    Filesize

    21KB

    MD5

    1c58526d681efe507deb8f1935c75487

    SHA1

    0e6d328faf3563f2aae029bc5f2272fb7a742672

    SHA256

    ef13dce8f71173315dfc64ab839b033ab19a968ee15230e9d4d2c9d558efeee2

    SHA512

    8edb9a0022f417648e2ece9e22c96e2727976332025c3e7d8f15bcf6d7d97e680d1bf008eb28e2e0bd57787dcbb71d38b2deb995b8edc35fa6852ab1d593f3d1

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\api-ms-win-core-file-l2-1-0.dll

    Filesize

    18KB

    MD5

    bfffa7117fd9b1622c66d949bac3f1d7

    SHA1

    402b7b8f8dcfd321b1d12fc85a1ee5137a5569b2

    SHA256

    1ea267a2e6284f17dd548c6f2285e19f7edb15d6e737a55391140ce5cb95225e

    SHA512

    b319cc7b436b1be165cdf6ffcab8a87fe29de78f7e0b14c8f562be160481fb5483289bd5956fdc1d8660da7a3f86d8eede35c6cc2b7c3d4c852decf4b2dcdb7f

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\api-ms-win-core-localization-l1-2-0.dll

    Filesize

    21KB

    MD5

    724223109e49cb01d61d63a8be926b8f

    SHA1

    072a4d01e01dbbab7281d9bd3add76f9a3c8b23b

    SHA256

    4e975f618df01a492ae433dff0dd713774d47568e44c377ceef9e5b34aad1210

    SHA512

    19b0065b894dc66c30a602c9464f118e7f84d83010e74457d48e93aaca4422812b093b15247b24d5c398b42ef0319108700543d13f156067b169ccfb4d7b6b7c

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\api-ms-win-core-processthreads-l1-1-1.dll

    Filesize

    21KB

    MD5

    517eb9e2cb671ae49f99173d7f7ce43f

    SHA1

    4ccf38fed56166ddbf0b7efb4f5314c1f7d3b7ab

    SHA256

    57cc66bf0909c430364d35d92b64eb8b6a15dc201765403725fe323f39e8ac54

    SHA512

    492be2445b10f6bfe6c561c1fc6f5d1af6d1365b7449bc57a8f073b44ae49c88e66841f5c258b041547fcd33cbdcb4eb9dd3e24f0924db32720e51651e9286be

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\api-ms-win-core-timezone-l1-1-0.dll

    Filesize

    21KB

    MD5

    d12403ee11359259ba2b0706e5e5111c

    SHA1

    03cc7827a30fd1dee38665c0cc993b4b533ac138

    SHA256

    f60e1751a6ac41f08e46480bf8e6521b41e2e427803996b32bdc5e78e9560781

    SHA512

    9004f4e59835af57f02e8d9625814db56f0e4a98467041da6f1367ef32366ad96e0338d48fff7cc65839a24148e2d9989883bcddc329d9f4d27cae3f843117d0

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\python312.dll

    Filesize

    6.6MB

    MD5

    d521654d889666a0bc753320f071ef60

    SHA1

    5fd9b90c5d0527e53c199f94bad540c1e0985db6

    SHA256

    21700f0bad5769a1b61ea408dc0a140ffd0a356a774c6eb0cc70e574b929d2e2

    SHA512

    7a726835423a36de80fb29ef65dfe7150bd1567cac6f3569e24d9fe091496c807556d0150456429a3d1a6fd2ed0b8ae3128ea3b8674c97f42ce7c897719d2cd3

  • C:\Users\Admin\AppData\Local\Temp\_MEI29762\ucrtbase.dll

    Filesize

    992KB

    MD5

    0e0bac3d1dcc1833eae4e3e4cf83c4ef

    SHA1

    4189f4459c54e69c6d3155a82524bda7549a75a6

    SHA256

    8a91052ef261b5fbf3223ae9ce789af73dfe1e9b0ba5bdbc4d564870a24f2bae

    SHA512

    a45946e3971816f66dd7ea3788aacc384a9e95011500b458212dc104741315b85659e0d56a41570731d338bdf182141c093d3ced222c007038583ceb808e26fd