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Analysis

  • max time kernel
    142s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29/02/2024, 01:22

General

  • Target

    ad571c48db09f338fa84067f2b09fcc3.exe

  • Size

    44KB

  • MD5

    ad571c48db09f338fa84067f2b09fcc3

  • SHA1

    92576b8838f5d6c17920189b70d9cc943488a8e7

  • SHA256

    4c9e94aab940f0e5540cb8d5e444401cbf3b59b4365c9fe18c6b63c9d5cc49d4

  • SHA512

    bdfaeabdb61babd1862713888261ff6df017ce4f4c0fe5b8dcaaa27f4158f22cb8bd552c8bf43b975246954a9bbaba78b33430aa5597e9665fac839b1ef5d942

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFDHJJF0bhhcjGAa3hMq2:SKcR4mjD9r823FjJJKrcS3yJZ8yG8n

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad571c48db09f338fa84067f2b09fcc3.exe
    "C:\Users\Admin\AppData\Local\Temp\ad571c48db09f338fa84067f2b09fcc3.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\zV0g0dPzJReNfqV.exe
      C:\Users\Admin\AppData\Local\Temp\zV0g0dPzJReNfqV.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2232
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    67KB

    MD5

    753df6889fd7410a2e9fe333da83a429

    SHA1

    3c425f16e8267186061dd48ac1c77c122962456e

    SHA256

    b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

    SHA512

    9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

  • C:\Users\Admin\AppData\Local\Temp\Tar6DA8.tmp

    Filesize

    175KB

    MD5

    dd73cead4b93366cf3465c8cd32e2796

    SHA1

    74546226dfe9ceb8184651e920d1dbfb432b314e

    SHA256

    a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

    SHA512

    ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • \Users\Admin\AppData\Local\Temp\zV0g0dPzJReNfqV.exe

    Filesize

    15KB

    MD5

    92f9de5aaf4021b73961e14303746f95

    SHA1

    331b792e347ebaf6b6b4c9ac65d742061e1a9f0a

    SHA256

    13c921999e5ff273007a610a8521bbc77d884b41d9cbbd41e045b3497909659c

    SHA512

    314749d46a3584213e55c7030e087e06f1e5bc5fbb8f99210a4e3014b9f44f3be7e791f48c570dd0abaf73584322ebb6be0d2ea5dbbfe343245cced22b172225

  • memory/2032-1-0x0000000000970000-0x0000000000987000-memory.dmp

    Filesize

    92KB

  • memory/2032-11-0x0000000000970000-0x0000000000987000-memory.dmp

    Filesize

    92KB

  • memory/2152-15-0x0000000000B30000-0x0000000000B47000-memory.dmp

    Filesize

    92KB

  • memory/2232-19-0x00000000003B0000-0x00000000003F0000-memory.dmp

    Filesize

    256KB

  • memory/2232-18-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-17-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-119-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB