Analysis

  • max time kernel
    119s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    30-10-2021 18:47

General

  • Target

    FL Studia.exe

  • Size

    1.5MB

  • MD5

    865634b3f6cb4d2ac3dafbbd88085511

  • SHA1

    5f9882d70100ed1b5fd7281bc6cbb1026591f83e

  • SHA256

    3e6ecd9dc9ec4d42be5fdca7c55931fa9f835f3f634ee9f707ed7b1a102e9f7d

  • SHA512

    8dff199ebf486bdac97ac760bf557a84e84dff631d57f627ade2bddbe76dd145d5d4014506a5f1944ccd6ba58b309a2c24845adb49e66b7229b28a79d3da7b99

Malware Config

Extracted

Family

redline

Botnet

H

C2

185.255.133.25:18225

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FL Studia.exe
    "C:\Users\Admin\AppData\Local\Temp\FL Studia.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 492
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1104

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2644-132-0x0000000009690000-0x0000000009691000-memory.dmp
    Filesize

    4KB

  • memory/2644-142-0x000000000A590000-0x000000000A591000-memory.dmp
    Filesize

    4KB

  • memory/2644-161-0x000000000C170000-0x000000000C171000-memory.dmp
    Filesize

    4KB

  • memory/2644-160-0x000000000B380000-0x000000000B381000-memory.dmp
    Filesize

    4KB

  • memory/2644-133-0x00000000097C0000-0x00000000097C1000-memory.dmp
    Filesize

    4KB

  • memory/2644-120-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2644-125-0x0000000000418D2A-mapping.dmp
  • memory/2644-134-0x00000000096F0000-0x00000000096F1000-memory.dmp
    Filesize

    4KB

  • memory/2644-127-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
    Filesize

    4KB

  • memory/2644-128-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
    Filesize

    4KB

  • memory/2644-129-0x0000000000400000-0x0000000000401000-memory.dmp
    Filesize

    4KB

  • memory/2644-131-0x0000000009C80000-0x0000000009C81000-memory.dmp
    Filesize

    4KB

  • memory/2644-145-0x000000000A6C0000-0x000000000A6C1000-memory.dmp
    Filesize

    4KB

  • memory/2644-144-0x000000000AC90000-0x000000000AC91000-memory.dmp
    Filesize

    4KB

  • memory/2644-126-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
    Filesize

    4KB

  • memory/2644-135-0x0000000009670000-0x0000000009C76000-memory.dmp
    Filesize

    6.0MB

  • memory/2644-136-0x0000000009730000-0x0000000009731000-memory.dmp
    Filesize

    4KB

  • memory/2644-137-0x0000000004EB0000-0x0000000004EB1000-memory.dmp
    Filesize

    4KB

  • memory/2644-141-0x0000000009A60000-0x0000000009A61000-memory.dmp
    Filesize

    4KB

  • memory/2644-143-0x000000000A6F0000-0x000000000A6F1000-memory.dmp
    Filesize

    4KB

  • memory/3152-116-0x0000000000B40000-0x0000000000FD6000-memory.dmp
    Filesize

    4.6MB

  • memory/3152-119-0x0000000000B40000-0x0000000000FD6000-memory.dmp
    Filesize

    4.6MB

  • memory/3152-117-0x0000000000B40000-0x0000000000FD6000-memory.dmp
    Filesize

    4.6MB

  • memory/3152-118-0x0000000000B40000-0x0000000000FD6000-memory.dmp
    Filesize

    4.6MB

  • memory/3152-115-0x0000000000B40000-0x0000000000FD6000-memory.dmp
    Filesize

    4.6MB