Analysis

  • max time kernel
    134s
  • max time network
    140s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17-09-2024 15:22

General

  • Target

    test.exe

  • Size

    1.6MB

  • MD5

    20e93026bee4ab2b660761da15a34902

  • SHA1

    2b7c425f6fd0f106bcbcfbe1f978bbd3928bce0a

  • SHA256

    e479bae61be6653faa02934e25ee488de09c326b1af8e1458a07b73e54f951ad

  • SHA512

    60a96c8df717905d8212e4903fdf24712781bd8dbbff50e4b65a559cbefad9d45dcc6b6f7f8f51c4959a05a928e71d1a5f0e260838db87b5e740c8807ce0db87

  • SSDEEP

    24576:ji2Q9NXw2/wPOjdGxY2rJxkqjVnlqud+/2P+A+ZecdyFoBkkAqmZywl0i:GTq24GjdGSiJxkqXfd+/9AqYanCLl

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1285617774177161319/tMrhJuDO8czmq_b-937qRxuTdnQHhiFS_PygTehCI8RAUV1wNRZaDXwScpK7gRF2jWxF

Signatures

  • Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\test.exe
    "C:\Users\Admin\AppData\Local\Temp\test.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:5084
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1896
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show profile
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:928
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4668
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4100
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2716
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:5000
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 3116
      2⤵
      • Program crash
      PID:656
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\Directories\OneDrive.txt

    Filesize

    25B

    MD5

    966247eb3ee749e21597d73c4176bd52

    SHA1

    1e9e63c2872cef8f015d4b888eb9f81b00a35c79

    SHA256

    8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e

    SHA512

    bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\Directories\Startup.txt

    Filesize

    24B

    MD5

    68c93da4981d591704cea7b71cebfb97

    SHA1

    fd0f8d97463cd33892cc828b4ad04e03fc014fa6

    SHA256

    889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

    SHA512

    63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\Directories\Videos.txt

    Filesize

    23B

    MD5

    1fddbf1169b6c75898b86e7e24bc7c1f

    SHA1

    d2091060cb5191ff70eb99c0088c182e80c20f8c

    SHA256

    a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

    SHA512

    20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\System\Apps.txt

    Filesize

    888B

    MD5

    ba21551eb7508622a79a4dfef4a97ebb

    SHA1

    ab2f95e14c9cd94e5e9c4ba6ae02addfdd7eac4b

    SHA256

    a6b7290c3f42a532001f9ffeae03b1e28fd30ce0e7f7ae449b9d8fe3a9d17c3d

    SHA512

    c0cb12d5e479278cf5dbaa252a85f4dea471cc27a865e3a976e934cc1b1ded2da1ee0a71ee7830079dde94e6052c2df1f388c28302ccc20c4e0ee14cbda43542

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\System\Debug.txt

    Filesize

    1007B

    MD5

    382c8fe4be73d6c67d2b0441a3151911

    SHA1

    a0fc796ec31a09c28f7fd69a655b9721d0147e97

    SHA256

    f0d9e6a0724d3f58fb003eb02a22182517eeb418fff8ee97dd79f9755ee1c2a8

    SHA512

    4d385138077d4b37aa5e55a561558ca8d90e573e42eb1b8a6767dcc6e86019f1d3cfafb00975304a7c18816f15876257a485b92f215e7bba8bbb3db91e1c1391

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    64c15018ca35ccbab708201f38696949

    SHA1

    e74bf72cf286791c0c83044e04a7411a57e1dbde

    SHA256

    144c5f947578d97ac72ad7c25bb7dfd73ac05ea58ce84aab00b8d9e457ec80c5

    SHA512

    010bf2d51f8cd993f9d356c5957eec62ebb6b69d729c3c82fdc066362f3a2a1695f31a6b8d45b20859e30771885b0fbb6c34484b1305eca294db8c08fa5e1716

  • C:\Users\Admin\AppData\Local\d0a247b6b94bb7c2d4d69cef50eeecf2\Admin@FCXHTLHL_en-US\System\ProductKey.txt

    Filesize

    29B

    MD5

    71eb5479298c7afc6d126fa04d2a9bde

    SHA1

    a9b3d5505cf9f84bb6c2be2acece53cb40075113

    SHA256

    f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3

    SHA512

    7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

  • memory/5084-7-0x0000000005180000-0x00000000051A6000-memory.dmp

    Filesize

    152KB

  • memory/5084-8-0x0000000073C6E000-0x0000000073C6F000-memory.dmp

    Filesize

    4KB

  • memory/5084-12-0x0000000005770000-0x000000000578E000-memory.dmp

    Filesize

    120KB

  • memory/5084-10-0x0000000005740000-0x000000000574A000-memory.dmp

    Filesize

    40KB

  • memory/5084-45-0x0000000006C30000-0x0000000006CC2000-memory.dmp

    Filesize

    584KB

  • memory/5084-60-0x00000000071D0000-0x00000000076CE000-memory.dmp

    Filesize

    5.0MB

  • memory/5084-9-0x0000000073C60000-0x000000007434E000-memory.dmp

    Filesize

    6.9MB

  • memory/5084-11-0x0000000005750000-0x0000000005758000-memory.dmp

    Filesize

    32KB

  • memory/5084-163-0x00000000056A0000-0x000000000571A000-memory.dmp

    Filesize

    488KB

  • memory/5084-0-0x0000000073C6E000-0x0000000073C6F000-memory.dmp

    Filesize

    4KB

  • memory/5084-6-0x00000000050E0000-0x0000000005180000-memory.dmp

    Filesize

    640KB

  • memory/5084-3-0x0000000073C60000-0x000000007434E000-memory.dmp

    Filesize

    6.9MB

  • memory/5084-2-0x0000000004BE0000-0x0000000004C46000-memory.dmp

    Filesize

    408KB

  • memory/5084-1-0x00000000001D0000-0x0000000000366000-memory.dmp

    Filesize

    1.6MB