Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-09-2024 19:29

General

  • Target

    SynapseXRemake.exe

  • Size

    1.6MB

  • MD5

    ef75bc7524a8ad11089bc56829b087fe

  • SHA1

    5db3066c40179490935683beac9247ac0beaf455

  • SHA256

    7fa2cbb4db7eff2cc8c83db3f79db6d7a23993148798ca3e4bab14dc29da9494

  • SHA512

    72c741d8327f3a075a54c89ba68ed4971affc3483cbfd1914c4425674741056a78885b0aa5afc6306d3b5177bb1621f66a5f2ac90754fd34c45193cb5aba29a3

  • SSDEEP

    24576:Ai2Q9NXw2/wPOjdGxY2rJxkqjVnlqud+/2P+A+ZecdyFoBkkAqmZywN0n:/Tq24GjdGSiJxkqXfd+/9AqYanCLN

Malware Config

Extracted

Family

stealerium

C2

https://discord.com/api/webhooks/1285308086579626026/vuWqBK8vW-2y76DZHwa-OUHKbJ7q1EDyJK52TSpHjSo8rKpj--z6l_OjPQqWZnTcZ3sA

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 3 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.

  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SynapseXRemake.exe
    "C:\Users\Admin\AppData\Local\Temp\SynapseXRemake.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 SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2036
    • 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:1152
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3512
      • 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:1468
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4432
    • 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:3544
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1292
      • 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:3160
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\Directories\OneDrive.txt

    Filesize

    25B

    MD5

    966247eb3ee749e21597d73c4176bd52

    SHA1

    1e9e63c2872cef8f015d4b888eb9f81b00a35c79

    SHA256

    8ddfc481b1b6ae30815ecce8a73755862f24b3bb7fdebdbf099e037d53eb082e

    SHA512

    bd30aec68c070e86e3dec787ed26dd3d6b7d33d83e43cb2d50f9e2cff779fee4c96afbbe170443bd62874073a844beb29a69b10c72c54d7d444a8d86cfd7b5aa

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\Directories\Startup.txt

    Filesize

    24B

    MD5

    68c93da4981d591704cea7b71cebfb97

    SHA1

    fd0f8d97463cd33892cc828b4ad04e03fc014fa6

    SHA256

    889ed51f9c16a4b989bda57957d3e132b1a9c117ee84e208207f2fa208a59483

    SHA512

    63455c726b55f2d4de87147a75ff04f2daa35278183969ccf185d23707840dd84363bec20d4e8c56252196ce555001ca0e61b3f4887d27577081fdef9e946402

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\Directories\Videos.txt

    Filesize

    23B

    MD5

    1fddbf1169b6c75898b86e7e24bc7c1f

    SHA1

    d2091060cb5191ff70eb99c0088c182e80c20f8c

    SHA256

    a67aa329b7d878de61671e18cd2f4b011d11cbac67ea779818c6dafad2d70733

    SHA512

    20bfeafde7fec1753fef59de467bd4a3dd7fe627e8c44e95fe62b065a5768c4508e886ec5d898e911a28cf6365f455c9ab1ebe2386d17a76f53037f99061fd4d

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\System\Apps.txt

    Filesize

    6KB

    MD5

    736eaf29dc11b211f1ef21bc02d06016

    SHA1

    0232129da9cbf955c92fe2b77a104e89ddccd801

    SHA256

    b6ed0456048507684d6922579cee367157dfe9f98b0816d22771caff4d59eb66

    SHA512

    8df26162eaaaaf29e4ce5d2a696a764a52417a050d1defa9461840404055ac491dacc3d26cb9436a817258ebcbbf271a2039b79e2931bcdbf9ea9c8589b0f104

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\System\Debug.txt

    Filesize

    1007B

    MD5

    a25da4dd4fa9a6614093fa8843cd94aa

    SHA1

    a0e7363bcb94f6de7628ff33e02562baf2d9fedf

    SHA256

    6239e4393d63947c1ff65b2eda2de565ba89102e7c5d5d382034d094586114bb

    SHA512

    2cae4fd38243c3f05787d047d13b6d296c33d28204ead2a5624e6b3c9b9cfcfc8e24df643df629782af5da492cd6370d97a9203b7c76d3176222aa6415c725f5

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    9ad9b76b8d9219449279cd0767fe1179

    SHA1

    7b0ff0fab0b1dd881ea55d0a1a7c1ea077f75690

    SHA256

    43652383cf90550e749166bceed13e2d20662d525fc2d5fea8092298089c5c61

    SHA512

    f7aa1052d69e1afbe62bb63ae88ac96f47bc12cca2fc941234e5974a9cc9161cbc0021ed76781324362717809f87578786926783d7d4f6884daa2bf43b1ce470

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\Admin@DSEYXUOD_en-US\System\ProductKey.txt

    Filesize

    29B

    MD5

    71eb5479298c7afc6d126fa04d2a9bde

    SHA1

    a9b3d5505cf9f84bb6c2be2acece53cb40075113

    SHA256

    f6cadfd4e4c25ff3b8cffe54a2af24a757a349abbf4e1142ec4c9789347fe8b3

    SHA512

    7c6687e21d31ec1d6d2eff04b07b465f875fd80df26677f1506b14158444cf55044eb6674880bd5bd44f04ff73023b26cb19b8837427a1d6655c96df52f140bd

  • C:\Users\Admin\AppData\Local\04f52f56461319819a859a6c8515d1c0\msgid.dat

    Filesize

    19B

    MD5

    4b0d38d31b5c5ff999107d7fea8c1a74

    SHA1

    02a95eaae15bbe17f0375b2244a726f250a1a211

    SHA256

    9802d2282861a000e9725849f679e21d495a2ecbee91dc3c16c8e5dde923e400

    SHA512

    1ec2ce0201db6a81d747486b5a18cbd606b8097e00e1a923b44f2cb459a4f91be542327054643798e39ce0db28727f324eb9e1729c615d60143705750013de8f

  • memory/2036-6-0x0000000005AA0000-0x0000000005B40000-memory.dmp

    Filesize

    640KB

  • memory/2036-3-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/2036-72-0x0000000007B00000-0x00000000080A4000-memory.dmp

    Filesize

    5.6MB

  • memory/2036-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

    Filesize

    4KB

  • memory/2036-158-0x00000000749EE000-0x00000000749EF000-memory.dmp

    Filesize

    4KB

  • memory/2036-7-0x0000000005B40000-0x0000000005B66000-memory.dmp

    Filesize

    152KB

  • memory/2036-200-0x0000000006CE0000-0x0000000006D5A000-memory.dmp

    Filesize

    488KB

  • memory/2036-8-0x0000000005910000-0x000000000591A000-memory.dmp

    Filesize

    40KB

  • memory/2036-9-0x0000000006BE0000-0x0000000006BE8000-memory.dmp

    Filesize

    32KB

  • memory/2036-65-0x0000000006E20000-0x0000000006EB2000-memory.dmp

    Filesize

    584KB

  • memory/2036-2-0x0000000005500000-0x0000000005566000-memory.dmp

    Filesize

    408KB

  • memory/2036-1-0x00000000009E0000-0x0000000000B76000-memory.dmp

    Filesize

    1.6MB

  • memory/2036-273-0x00000000070F0000-0x00000000071A2000-memory.dmp

    Filesize

    712KB

  • memory/2036-275-0x0000000007040000-0x0000000007062000-memory.dmp

    Filesize

    136KB

  • memory/2036-276-0x00000000083B0000-0x0000000008704000-memory.dmp

    Filesize

    3.3MB

  • memory/2036-277-0x00000000749E0000-0x0000000075190000-memory.dmp

    Filesize

    7.7MB

  • memory/2036-10-0x0000000006C00000-0x0000000006C1E000-memory.dmp

    Filesize

    120KB

  • memory/2036-289-0x0000000007990000-0x000000000799A000-memory.dmp

    Filesize

    40KB