Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-10-2024 19:58

General

  • Target

    b42583ea1a538988331439c7903703f28686d97dbd900183be5c9f26022a9345.exe

  • Size

    256KB

  • MD5

    18489c055c3d8b29bee30f44b77d44fc

  • SHA1

    0d886928d23fe93ed6f48f5f1b109002b8ad02f2

  • SHA256

    b42583ea1a538988331439c7903703f28686d97dbd900183be5c9f26022a9345

  • SHA512

    af6fce5af569a7faf288a4d45dd263bf84f6af6e4fed9406ba65c2433ad1892bcd95ce8dda0914a3c7876a9e669bf0e29fb5ef634110267f7bdcffc7616f3601

  • SSDEEP

    3072:+5E4z97xNhc39hhQYyc1aUTBXO4H6/XmBTRvDPkDUKDRuASo8JE8ctoG7oyoPnIa:+Kit34avmZRvDcka87G7XoPnIoR

Malware Config

Signatures

  • FatalRat

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

  • Fatal Rat payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 14 IoCs
  • VMProtect packed file 5 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Drops file in Program Files directory 10 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b42583ea1a538988331439c7903703f28686d97dbd900183be5c9f26022a9345.exe
    "C:\Users\Admin\AppData\Local\Temp\b42583ea1a538988331439c7903703f28686d97dbd900183be5c9f26022a9345.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\spower.exe
      C:\Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\spower.exe
      2⤵
      • Executes dropped EXE
      PID:1712
    • C:\Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\upssvc.exe
      C:\Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\upssvc.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:1664
    • C:\ProgramData\NVIDIARV\svchost.exe
      C:\ProgramData\NVIDIARV\svchost.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:1792
    • C:\Windows\SysWOW64\SCHTASKS.exe
      SCHTASKS /Create /SC ONLOGON /TN WindowsUpdata /F /RL HIGHEST /TR C:\Users\Public\Picturesmubx2tzq\CCCef3Render.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1632
  • C:\Program Files\Microvirt\MEmuHyperv\mesvc.exe
    "C:\Program Files\Microvirt\MEmuHyperv\mesvc.exe" -Embedding
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:1716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Microvirt\MEmuHyperv\libssl-1_1-x64.dll

    Filesize

    639KB

    MD5

    2b242983d5fc098515105268eb22f0b7

    SHA1

    6a660eae893f16b988b44ec943a8dacf808f467e

    SHA256

    1679808a0a410e73d7807c1facfd0ce0ee1e6270b35d29dcdf0a8977c17418ac

    SHA512

    905b01240f92124f71acd61a075887d89a83699681f585a246aa44b9d514829adec5ab827d720c7c7eccd8392698ee3f18fe9b2f7fcd81000cb0f40caa28ff06

  • C:\Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\upssvc.exe

    Filesize

    162KB

    MD5

    893f671257ee76b77e608949544ca60f

    SHA1

    4d7c88fa23ca0144ae71aa198119afbcfe46bc7a

    SHA256

    298838ea343eb121093a2bf88b3c3ad310419ccaa028e143b0831bd8c06778a5

    SHA512

    3dcaa01381ad884c080701b63dbde16b3544ceeedf0e5bd8da5dad0c1fcb83aa12abc97e5a75c535aa07040667a5843e2c59009516508bf340bee17eec1fec63

  • \Program Files\Microvirt\MEmuHyperv\MEmuDDU.dll

    Filesize

    355KB

    MD5

    ce98c3cbd7bfcca2755b35e77a2bceb2

    SHA1

    c12c20bb69e7858682ab6bb21ca3971880efdc07

    SHA256

    1ec46488b2db690f6f769c6cfa7e3021ee6f88096303f04be43f3f2150d8c946

    SHA512

    dfc4f4b300cd2dc0d0f19b415da157b15ce666e1927266feb7a445ffb9199620bb7fc55746239f81fd3f79133c64c8d41822ccddc625288a33a6737a062faee5

  • \Program Files\Microvirt\MEmuHyperv\MEmuRT.dll

    Filesize

    3.8MB

    MD5

    56719cc92af72f56f46a5798b1430d9e

    SHA1

    497456e1b225a541058c8d7f96f2a3ef082d147c

    SHA256

    ca5e9919a5b3612a2faaab0f08f3e95db69e3d88d821a706c5d68d3f0d86d060

    SHA512

    5ca3fd7d6f86c5969949e55669c315287084633ccd42aae45cef170bce4fb05071637aaf6a9fce973cdb32003fdf02e184c8dc5aa3c327a17d3889084e07637a

  • \Program Files\Microvirt\MEmuHyperv\MSVCP100.dll

    Filesize

    612KB

    MD5

    89acd78f8c6d92947b3fcc78c7493036

    SHA1

    3317bd26eda9a7a0d49dfcfe27673d96b2873c95

    SHA256

    e7675926ff8f230e3ce88de65e47ab3fd6f8d617a93e062dd9ecc4226e9d16c0

    SHA512

    08ddb16ab60ea0f531f7853dc6a66a7a2302516e1b54258f2884528a4304cb05111b073d15387702c359f00bd96156043cadddd2b230bfa8bd288b578a11225f

  • \Program Files\Microvirt\MEmuHyperv\MSVCR100.dll

    Filesize

    830KB

    MD5

    34b2d5ad1c7c600f9d24660928a03382

    SHA1

    ab9621342ada12b355ea5fcd76b666193898c11b

    SHA256

    d7d6ff911503e848ffc6c0ba43382cc2e1e00b367d55ffdb883c54b688c5c28e

    SHA512

    0d86a396f81864c9ce5a57090fd45745f8c66a28f78fb469a6d62ce01c519f6a0c58d904afa99baef2f74ae4fe2308dc710c901d0394779837b82748679363fa

  • \Program Files\Microvirt\MEmuHyperv\libcrypto-1_1-x64.dll

    Filesize

    2.6MB

    MD5

    6def652fd7e5207c374fc51534bda953

    SHA1

    ee23eab28dd67ce96e7799a31801580c824cde5f

    SHA256

    80677a75588101ca6da2a22b74c02bd5b91aba2a62d1bce20d07370a9ddf0118

    SHA512

    f3284532571bfb83a622b019040e4882866941c66a06a9c83da23a1a820b940c48ffedd1d109c799b64d6bd30775cdb9ea1067869f565116653988bd763552a8

  • \Program Files\Microvirt\MEmuHyperv\libcurl.dll

    Filesize

    365KB

    MD5

    75b9bbfcf9581252474a5d1daa6e6641

    SHA1

    0fb1cfa16bf68fb13ba9816c2354af358bded167

    SHA256

    c78b0aa24630b35dfd3030626f873a89a39944ffa620b6afb42ae50eb1618f4b

    SHA512

    ed527526fd6053425fcefdfa5174d7dfa3b3b3601f33f8019b1215c9f1b85d823910f5a02c9bdd296d70058a516f9d464f42e712903144315e17f4ce7ad17561

  • \Program Files\Microvirt\MEmuHyperv\mesvc.exe

    Filesize

    4.6MB

    MD5

    8c1eca3e2fe8f5fd1a0ce4b4a8cf4409

    SHA1

    8d45e044cbdcf645fe359864bc700b2568032687

    SHA256

    6ef47689ea1309e43869ec59861a677fe4e40cf03eb89386fc7d32fc516e9671

    SHA512

    4bf03b1453fa1f1bed14cb133c01c7b9b348f82da775bbbeaefc7867d348928c265b6b38623ced8b711138876365d63a669955920a5b5ae119975184297fe54f

  • \ProgramData\NVIDIARV\svchost.exe

    Filesize

    3.4MB

    MD5

    e2897a6b82e097c3231b5e44283553b9

    SHA1

    6c90af323e5cbd44f70e278eeb87e592c3bba9ae

    SHA256

    8a397d307fb4831397c00c438a6f8f7cff7a4c4016f114fa2fbc5df043aad76b

    SHA512

    c26db1c61f5ce90d877ac717ae9ecf4559625009a5d01520fbe36828a9a50610a5ca4491c5f80e65383e17737a6cc402dc0e0dab9fa6c23631b7e6234fa91582

  • \Users\Admin\AppData\Local\Temp\mubx2tzqxkjhafr\spower.exe

    Filesize

    1.1MB

    MD5

    3899c4408292d159acf217a75de5d4e1

    SHA1

    ccb76f1cccb80768eb67e735e7b3ce52ad719059

    SHA256

    c70929a39d570e660dac712f36ce3bd8f6911518380f77133ab3845cd1f068d5

    SHA512

    d22b136abb775d7e51867b94ed98f43c503adad89c43912f3ff29e2e749181f70da9b1725716ce041bea1f88570b8932d9d65dd28d2de2d5059fcb4b172fc8bd

  • memory/868-54-0x0000000003340000-0x000000000357B000-memory.dmp

    Filesize

    2.2MB

  • memory/868-55-0x0000000002D80000-0x0000000002DCD000-memory.dmp

    Filesize

    308KB

  • memory/868-69-0x0000000003340000-0x000000000357B000-memory.dmp

    Filesize

    2.2MB

  • memory/868-56-0x0000000002D80000-0x0000000002DCD000-memory.dmp

    Filesize

    308KB

  • memory/1664-58-0x000000013FCE0000-0x000000013FD2D000-memory.dmp

    Filesize

    308KB

  • memory/1664-63-0x000000013FCE0000-0x000000013FD2D000-memory.dmp

    Filesize

    308KB

  • memory/1664-68-0x000000013FCE0000-0x000000013FD2D000-memory.dmp

    Filesize

    308KB

  • memory/1712-61-0x000000013F3B0000-0x000000013F5EB000-memory.dmp

    Filesize

    2.2MB

  • memory/1712-65-0x000000013F3B0000-0x000000013F5EB000-memory.dmp

    Filesize

    2.2MB

  • memory/1712-70-0x000000013F3B0000-0x000000013F5EB000-memory.dmp

    Filesize

    2.2MB

  • memory/1792-78-0x0000000000400000-0x0000000000910000-memory.dmp

    Filesize

    5.1MB

  • memory/1792-80-0x0000000010000000-0x000000001002D000-memory.dmp

    Filesize

    180KB