Overview

overview

10

Static

static

3

Celesty.exe

windows7-x64

10

Celesty.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    43s
  • max time network
    35s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 04:14

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General

  • Target

    Celesty.exe

  • Size

    1.7MB

  • MD5

    8966d25141f5e150ff7d02ac502cce46

  • SHA1

    f882485d1ffac1b75b60794824b771e4ce33d7b7

  • SHA256

    8694257c04deed3937833145954c65564627f7d40cd20f8401696933a03b7e3f

  • SHA512

    caedef6e8fdc042d6586816bdc87c36b3d40c22a8e4e331d46296b669ed03f2e295f4b44ed4092f43e8d0dad8cc40766982d6938d1d638fb4e4eecaddd529df3

  • SSDEEP

    49152:6PxCjaDpascfyHTtgWc79pGvFog9hlQ0xM7QYeYnUgy:mCq4sokTtlPFooQzzU/

Score
10/10
mercurialgrabbercredential_accessdiscoveryevasionspywarestealer

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discord.com/api/webhooks/935223250571640882/ViB43kUXE9CCFxm2v1jxJfLyHYVNk3Y3-laU94OpWmJjw7id0TwbDJUP1by4-O7zvfZu

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

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

    Malicious Access or copy of Web Browser Credential store.

    credential_accessstealer
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • 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.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 5 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Celesty.exe
    "C:\Users\Admin\AppData\Local\Temp\Celesty.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Users\Admin\AppData\Roaming\dump\CelestyBuilder.exe
      "C:\Users\Admin\AppData\Roaming\dump\CelestyBuilder.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3728
      • C:\Users\Admin\AppData\Local\Temp\CELESTY BUILDER.EXE
        "C:\Users\Admin\AppData\Local\Temp\CELESTY BUILDER.EXE"
        3⤵
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Maps connected drives based on registry
        • Checks SCSI registry key(s)
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:436
      • C:\Users\Admin\AppData\Local\Temp\CELESTY.EXE
        "C:\Users\Admin\AppData\Local\Temp\CELESTY.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4416
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x3f8 0x424
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CELESTY BUILDER.EXE
    Filesize

    41KB

    MD5

    4cc81e53b9037673b9014431e9be0e60

    SHA1

    62c57cbad6be321e65bea71bd87801fcb0bf7af9

    SHA256

    1baf3f560a47aacd9a841939ff127fbade26095dd47867dfec38bc2f1fa4a9ad

    SHA512

    dae96f885d20fe185302f689f844032797209b28d1295444a29fa730d01b520e7994121fe8bd2b55c0d21b395da372a9846d9dec5960edfecd40ac41690d36ff

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\Celesty.exe
    Filesize

    2.7MB

    MD5

    c3009ee63bc661d9ea75eaeb256448ca

    SHA1

    45eb01150756df432e25eed44d976442473356de

    SHA256

    0bb88564a22bfd6d9ad6e4d8efa9077792a7b6094c2a0f865d70c43e11507352

    SHA512

    96f5847fbeef95df1309e97a4bc3d786a5f5c19b87e804f12d88b4473a0b50291c40407a3d95a2d5d78031f03be76da47f1846a73c7802ddae46a38ac4634e67

    Download Submit

  • C:\Users\Admin\AppData\Roaming\dump\CelestyBuilder.exe
    Filesize

    2.8MB

    MD5

    d604d3ac515faf6ad32e8e57c170d389

    SHA1

    02069909d405b33af28da67ad232013307a198b2

    SHA256

    5d3955502a6b63e394eea67aad6c83dfa80d08484d9f11956e77ec5b47c6f8b8

    SHA512

    bb1d77a7430204eef2ecb3cdfb7d2b2b5f80f9f5fefee6cbff2fc69538523177e8010d9dc4b353f4adc4c6bdba2c398ceac90ce43a1302b2cdf5149dd7680817

    Download Submit

  • memory/436-31-0x00000000002B0000-0x00000000002C0000-memory.dmp

    Filesize

    64KB

    Download

  • memory/4416-32-0x0000000000400000-0x00000000006DC000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/4416-33-0x0000000000400000-0x00000000006DC000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/4416-37-0x0000000000400000-0x00000000006DC000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/4416-38-0x0000000000400000-0x00000000006DC000-memory.dmp

    Filesize

    2.9MB

    Download

  • memory/4652-0-0x0000000075032000-0x0000000075033000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4652-1-0x0000000075030000-0x00000000755E1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4652-2-0x0000000075030000-0x00000000755E1000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/4652-13-0x0000000075030000-0x00000000755E1000-memory.dmp

    Filesize

    5.7MB

    Download