Analysis

  • max time kernel
    169s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/12/2023, 13:47

General

  • Target

    22faef489858d1b7e2ce7de50cbddc35.exe

  • Size

    30KB

  • MD5

    22faef489858d1b7e2ce7de50cbddc35

  • SHA1

    c9e76d84cd2416179a6277ae58f4d1f2279e6eb5

  • SHA256

    3b583fa2a255b71c961047db21c5cc07a7a6fce5c682b200ac94da5d4846261e

  • SHA512

    49ed8d149f10da42c2f3490bfd31df1e1a7e9091c8cbf15ae431988e62a9c21b85b8ccf03a2c63a8907c8cac079b245ac57dfa5de22e94e4c36759eeef0dcb07

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFD:SKcR4mjD9r823FD

Malware Config

Signatures

  • Executes dropped EXE 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 7 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
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\22faef489858d1b7e2ce7de50cbddc35.exe
    "C:\Users\Admin\AppData\Local\Temp\22faef489858d1b7e2ce7de50cbddc35.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3012
    • 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:3748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    352KB

    MD5

    0f6721f12bd373f6687972d0708db073

    SHA1

    81e0f8f73c8646f45e2b402db4def1aa32ce2049

    SHA256

    35c22765eea5e9402dbe0754f22f0c19805f95cf3ef571dc9077066107c1bf83

    SHA512

    a6ceb575b4a1a97b1e4f33b6a6b190f11995ce48ab21afe9129c28c4e2d2f84ce37616c4ca87344d0ebdf0e2160b2607a7460f500f7a41ad55eb640d2b98621b

  • C:\Users\Admin\AppData\Local\Temp\DUJNpclVx6EJnJm.exe

    Filesize

    30KB

    MD5

    fafed66b9be0cf8d5ccac1e4a6c2f621

    SHA1

    2185eb4570f47b141179b5272162befd95f9bc47

    SHA256

    e6c6bc5886158fcf3c8834e3982c3bbc2af5b7319b0a256983e3becb4e19d1bc

    SHA512

    eb0db91d2bc3aff8f1d62dec9d244fd7556e27d2dbc2ddf981f657e746f37a54ddab57cf82ed8ecc8fa2613e496bd98ddbed4057a73987d53e06508d83593da8

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/3012-0-0x00000000007F0000-0x0000000000807000-memory.dmp

    Filesize

    92KB

  • memory/3012-8-0x00000000007F0000-0x0000000000807000-memory.dmp

    Filesize

    92KB

  • memory/3748-7-0x0000000000D50000-0x0000000000D67000-memory.dmp

    Filesize

    92KB

  • memory/3748-31-0x0000000000D50000-0x0000000000D67000-memory.dmp

    Filesize

    92KB