Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-08-2024 21:25

General

  • Target

    2191082c9e999a14dd03b32db48f6340N.exe

  • Size

    1011KB

  • MD5

    2191082c9e999a14dd03b32db48f6340

  • SHA1

    3bb2526708136e914f75c75277fa396aaf1318f6

  • SHA256

    6f6822221526a14ed2cee6b5be7de5cddd38ac435072838a11e64e03697dde59

  • SHA512

    a7d6ca30f63ade895789d66cf8cd0d359b769f1b58eaccd76fd231901a59b246b74cd307d5fea52528c71adbb4e224169cdc34183aaa90ee6199a6f4f10c8d5d

  • SSDEEP

    12288:hmw8d0ABzaZuOkdq5yxcf/SOfMAsJlXOsdFCHRdF:hm50UzaZuOk8/f/GAKYs3CHRd

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot7437538284:AAFsH8yrE4iy9ggvYtatDYQTrKiGuQd8xpI/sendMessage?chat_id=5795480469

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 2 IoCs
  • Async RAT payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 7 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.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 10 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.

  • Delays execution with timeout.exe 1 IoCs
  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2191082c9e999a14dd03b32db48f6340N.exe
    "C:\Users\Admin\AppData\Local\Temp\2191082c9e999a14dd03b32db48f6340N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Users\Admin\AppData\Local\svchost.exe
      "C:\Users\Admin\AppData\Local\svchost.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1260
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks.exe" /create /tn svchost /tr "C:\ProgramData\MicrosoftEdge\svchost.exe" /st 21:31 /du 23:59 /sc daily /ri 1 /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2244
      • C:\ProgramData\MicrosoftEdge\svchost.exe
        "C:\ProgramData\MicrosoftEdge\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        PID:4868
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7649.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:668
        • C:\Windows\system32\timeout.exe
          timeout 7
          4⤵
          • Delays execution with timeout.exe
          PID:2016
    • C:\Users\Admin\AppData\Local\Server.exe
      "C:\Users\Admin\AppData\Local\Server.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:2824
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2216
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:2032
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:692
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4960
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3344
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3968
    • C:\Users\Admin\AppData\Roaming\CombolistCreator.exe
      "C:\Users\Admin\AppData\Roaming\CombolistCreator.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\8a3972323b525bba344ad1d0f9f91669\Admin@KZYBFHMK_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\8a3972323b525bba344ad1d0f9f91669\Admin@KZYBFHMK_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    1c00a10bee8b500239ca6797df41d7dc

    SHA1

    6ff61eeba3e0661bbff5158923ea0fa207dfd40f

    SHA256

    a979c7aa96ebc7feb14b844fa04d8976fcc32966fb69f8b62d39eca2ad60b7bc

    SHA512

    1a3b49a38bca622a995d7371d9ba554ba96ffc0527e6347e5ab3bcd696be5e331ad867e663904dd29eaae494444c0003e0c77ccecdb6b7baa268bdf9cb889db0

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

    Filesize

    1KB

    MD5

    baf55b95da4a601229647f25dad12878

    SHA1

    abc16954ebfd213733c4493fc1910164d825cac8

    SHA256

    ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

    SHA512

    24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

  • C:\Users\Admin\AppData\Local\Server.exe

    Filesize

    175KB

    MD5

    7e9585d33d1dc197151af0dd8a09602f

    SHA1

    444671409e5a1a69710ead0ed5e270f1da12eba6

    SHA256

    f0c1070bf224c80942e663ba627334f6e0bf312c6462212b6971aa9580bfb17a

    SHA512

    4846ee6fe771e43dcd8f3fb2d6e0bca81d3c4b7fcc17202ae16995e65589d49e66d6a08876d0ba6fa2164ac7f43c73f863e895d61cd221ac03565ff432e853b7

  • C:\Users\Admin\AppData\Local\Temp\tmp7649.tmp.bat

    Filesize

    154B

    MD5

    4c82217353652bd065651268a4eee931

    SHA1

    a8727f8c45e564234a76ea293f12071715edf8d6

    SHA256

    502985b27121c3755b4add628ddfdbbb532dbfdac9cbbeea2039d808f6e861b7

    SHA512

    1749d9f189084b448b7dfd58bcb3f952ace85aaa1fe6b658d83cf72476a8a805ceb125d2f08b9978fcbcc8a8c962a82155a39fa1f6edca054934a548db3212f1

  • C:\Users\Admin\AppData\Local\d529447d9052f8004e9665243f2ab53d\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\svchost.exe

    Filesize

    503KB

    MD5

    9094be4774ea9ee5c6a6e1bdfa80dd39

    SHA1

    8083c693ca6e2da2e7e1860e771433487bdc43f3

    SHA256

    e9cbf0e998ffd64476e93a462212a667565034a1b5f18b795e06f305f275b89f

    SHA512

    f8674123e4cf9563b168617370276ac20f7b5a32c97cbf9dc80623bdcdda665ca09dfe2b32bb9c9d4547c8bbd7ff6b971989706ee96f71b6fd4e8cdb6a39eca4

  • C:\Users\Admin\AppData\Roaming\CombolistCreator.exe

    Filesize

    222KB

    MD5

    5b0ee86273ca7bc37135161442e4077e

    SHA1

    cc2384487e671417a727c26526639cf8460349ee

    SHA256

    0ea3864f64a1613be2fee91a22b883b17d091769eb3cf8287154b497983fffbb

    SHA512

    8268fbdd8993f26c841a2bc4952a21f332950b9b92956b5d8b1a2cdc86bf43d633b787c9336288eaaacda66e4763c2a7af004436db7b4c636ea81151c81e7a83

  • C:\Users\Admin\Desktop\UnlockWait.html

    Filesize

    960KB

    MD5

    cf9e5ee3684c265a664e87aec9fa698b

    SHA1

    1fd61a6ba8407d89836f1e675f361319f79abc2e

    SHA256

    2e2b256c59432afcc824e46be3d51dbbbdc96264606ff72d554a682c4b442081

    SHA512

    b9832a652f0f9d378c06190a16dea08919f315f3ca04041b7ea6252853f6413beedbe35a4014523fa7bc9619b983b8356fcfa6b590b0602e9752c93667cef38d

  • memory/1260-44-0x000000001CD00000-0x000000001CD7A000-memory.dmp

    Filesize

    488KB

  • memory/1260-24-0x00007FFFE48C3000-0x00007FFFE48C5000-memory.dmp

    Filesize

    8KB

  • memory/1260-22-0x00000000007C0000-0x0000000000844000-memory.dmp

    Filesize

    528KB

  • memory/1968-36-0x0000000000810000-0x000000000084E000-memory.dmp

    Filesize

    248KB

  • memory/1968-42-0x00000000050C0000-0x00000000050CA000-memory.dmp

    Filesize

    40KB

  • memory/1968-41-0x0000000073B40000-0x00000000742F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1968-40-0x00000000050E0000-0x0000000005172000-memory.dmp

    Filesize

    584KB

  • memory/1968-39-0x0000000005690000-0x0000000005C34000-memory.dmp

    Filesize

    5.6MB

  • memory/1968-38-0x0000000073B40000-0x00000000742F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1968-197-0x0000000073B40000-0x00000000742F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2352-63-0x00000000059A0000-0x0000000005A06000-memory.dmp

    Filesize

    408KB

  • memory/2352-177-0x0000000073B4E000-0x0000000073B4F000-memory.dmp

    Filesize

    4KB

  • memory/2352-37-0x0000000000FE0000-0x0000000001012000-memory.dmp

    Filesize

    200KB

  • memory/2352-247-0x0000000006500000-0x000000000650A000-memory.dmp

    Filesize

    40KB

  • memory/2352-34-0x0000000073B4E000-0x0000000073B4F000-memory.dmp

    Filesize

    4KB

  • memory/2352-253-0x0000000006A10000-0x0000000006A22000-memory.dmp

    Filesize

    72KB