Analysis

  • max time kernel
    146s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2024 19:55

General

  • Target

    42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe

  • Size

    11.0MB

  • MD5

    f3912f8a1495fc0372931b6bb77d0906

  • SHA1

    5371fd9aa587ef833b152b895870d346c5113d3f

  • SHA256

    42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3

  • SHA512

    31ea2a07fa16beba63702237a07603eeda122d2f85fc7197e875c954204f510bd7a9f70978424c56d1ef4f7ac14d764d850c7a1504b5985f2154a12169373b90

  • SSDEEP

    196608:wtkBOgSWQdTEsAVwwBpMXF9xxAZle/7GpCFb58bKBe2dsltmvlCxqWPzlbVB0Qef:wtKORTDAnM3U8/+CFbKGB5KtmvlCxlP6

Malware Config

Signatures

  • FatalRat

    FatalRat is a modular infostealer family written in C++ first appearing in June 2021.

  • Fatal Rat payload 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • UPX packed file 1 IoCs

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

  • VMProtect packed file 6 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 41 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe
    "C:\Users\Admin\AppData\Local\Temp\42d3f739021157d43f5608db253455463b6d8cc1150d2a7baf81f038a31650c3.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Local\Temp\sevchost.exe
      C:\Users\Admin\AppData\Local\Temp\\sevchost.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Users\Admin\AppData\Local\sevchost.exe
        "C:\Users\Admin\AppData\Local\sevchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:18084
    • C:\Users\Admin\Documents\sevchost.exe
      C:\Users\Admin\Documents\\sevchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    908KB

    MD5

    8390ee2fd97cde38668ab3cf59efa7eb

    SHA1

    596911c48f40c00e494abc04f603f2a3244b25e7

    SHA256

    5bbab49b432fc0fb0e4874116b896e4aaae495bb35bad16424e2ac7c67ba1159

    SHA512

    5c4cd607203f9028b3bc1b0c69dd8e2dc4e52c989fb5a764f6d43364bd055644a1c19b106d8bb207d76b2dd287e9564df63cd9ea0d29c4f9ea51d96dfa3df1c8

  • \Users\Admin\Documents\CCStudio\HpSocket4C.dll

    Filesize

    2.8MB

    MD5

    4bc970a97300b1a725d44bba23d8697a

    SHA1

    6f1eb181153692814e038e2f851d0734646f78f8

    SHA256

    c9d8fb5311ae6018dc1ca72774cb7efeba5c115c827a5cfb795b3580499e323d

    SHA512

    03968ca876b7e584de0a1418cca1dd2036fd0b4744f86d69aee5691a42061e284f8d9577293ef3f656be332f7da5ca276f85c6393bd6d8eb7de181baec0285f8

  • memory/2504-25237-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/2552-58-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-14-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2552-24-0x0000000001E00000-0x0000000001E01000-memory.dmp

    Filesize

    4KB

  • memory/2552-22-0x0000000001E00000-0x0000000001E01000-memory.dmp

    Filesize

    4KB

  • memory/2552-19-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

    Filesize

    4KB

  • memory/2552-17-0x0000000001DF0000-0x0000000001DF1000-memory.dmp

    Filesize

    4KB

  • memory/2552-32-0x0000000001E20000-0x0000000001E21000-memory.dmp

    Filesize

    4KB

  • memory/2552-12-0x00000000003F0000-0x00000000003F1000-memory.dmp

    Filesize

    4KB

  • memory/2552-9-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/2552-7-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/2552-5-0x00000000003D0000-0x00000000003D1000-memory.dmp

    Filesize

    4KB

  • memory/2552-25218-0x0000000000D5C000-0x00000000012EC000-memory.dmp

    Filesize

    5.6MB

  • memory/2552-2-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2552-0-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2552-37-0x0000000000D5C000-0x00000000012EC000-memory.dmp

    Filesize

    5.6MB

  • memory/2552-35-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-39-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-40-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-45-0x00000000036A0000-0x00000000036C6000-memory.dmp

    Filesize

    152KB

  • memory/2552-29-0x0000000001E10000-0x0000000001E11000-memory.dmp

    Filesize

    4KB

  • memory/2552-34-0x0000000001E20000-0x0000000001E21000-memory.dmp

    Filesize

    4KB

  • memory/2552-55-0x00000000045D0000-0x00000000046C8000-memory.dmp

    Filesize

    992KB

  • memory/2552-16509-0x0000000000D5C000-0x00000000012EC000-memory.dmp

    Filesize

    5.6MB

  • memory/2552-30-0x0000000001E20000-0x0000000001E21000-memory.dmp

    Filesize

    4KB

  • memory/2552-56-0x00000000045D0000-0x00000000046C8000-memory.dmp

    Filesize

    992KB

  • memory/2552-27-0x0000000001E10000-0x0000000001E11000-memory.dmp

    Filesize

    4KB

  • memory/2552-4-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2552-16510-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-16524-0x0000000000400000-0x0000000001DEA000-memory.dmp

    Filesize

    25.9MB

  • memory/2552-2345-0x00000000045D0000-0x00000000046C8000-memory.dmp

    Filesize

    992KB

  • memory/2552-2266-0x00000000045D0000-0x00000000046C8000-memory.dmp

    Filesize

    992KB

  • memory/2744-59-0x0000000077070000-0x00000000770B7000-memory.dmp

    Filesize

    284KB

  • memory/2744-539-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-537-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-528-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-533-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-531-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-543-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-2265-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/2744-541-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-547-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-535-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-16519-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/2744-549-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-529-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-57-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/2744-551-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/2744-545-0x0000000002130000-0x0000000002241000-memory.dmp

    Filesize

    1.1MB

  • memory/18084-25229-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB