Overview

overview

10

Static

static

10

Yandex.bin.exe

windows7-x64

10

Yandex.bin.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2023 18:45

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General

  • Target

    Yandex.bin.exe

  • Size

    274KB

  • MD5

    40e3881d6c0898f6a5c24940b54a69a2

  • SHA1

    f3da392ee4fb703255eff7ee8a83f23c2bb02987

  • SHA256

    d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86

  • SHA512

    9013a696cda9be776f0a5ee66aece8716662121e69c5be056c8567eabed8fea91641e50714962438efb57da1b1ff1d4a2c3211e65be10a9e7833e647f700eb8b

  • SSDEEP

    6144:ef+BLtABPDMtBBfn1Y0gIoHOQZafTy8lI1D0Cbg:1tVvgIoHO+x1DRg

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1155120137612034188/cdy5wHbWmzOOyiX6nZbn5OlBuBidB8er7f1281hl7JRUP1iVFGnh9s57SwGqJtsdtgrx

Signatures

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Looks up external IP address via web service 2 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Yandex.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\Yandex.bin.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2444

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\44\Process.txt
    Filesize

    390B

    MD5

    f7eff8691a44ab9301542158d76630af

    SHA1

    ae10493879b715d3aa7325402b10d19b0da4f63e

    SHA256

    9a6f01c93b6c09fdd643a2d81bc9b0e69aabea0a47394e760bd77b9d1c4ce353

    SHA512

    422ed016f2dec346b05f38da7d2f387479a5749ff71455cdd9f1253db1b690104c17e0ba7dbefc1e1549c940aef3614a9bf6a71127ffb6a4990fb35c59a8c4b4

    Download Submit
  • memory/2444-0-0x00000000001F0000-0x000000000023A000-memory.dmp
    Filesize

    296KB

    Download
  • memory/2444-1-0x000007FEF5A80000-0x000007FEF646C000-memory.dmp
    Filesize

    9.9MB

    Download
  • memory/2444-2-0x000000001B270000-0x000000001B2F0000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2444-50-0x000007FEF5A80000-0x000007FEF646C000-memory.dmp
    Filesize

    9.9MB

    Download