Analysis

  • max time kernel
    126s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-11-2020 07:22

General

  • Target

    b7b5ffa4da24a1e2d00186fad284bc9e.exe

  • Size

    789KB

  • MD5

    b7b5ffa4da24a1e2d00186fad284bc9e

  • SHA1

    e462520c771c03e135a8399671849edad7ec6422

  • SHA256

    1ad905b0d07aaecf0913ce32e758b9e1af9ef550fbbfa52b32400aa25e5507cc

  • SHA512

    38c143d4707776ee61f3f912686ec4a424499f5f5274c10f6bcf8cbbb10e700089cfca1d16e02f7b52b7c7446fef80d8c2e467dcd90ddff58c0014da9450063f

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 35 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 12 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7b5ffa4da24a1e2d00186fad284bc9e.exe
    "C:\Users\Admin\AppData\Local\Temp\b7b5ffa4da24a1e2d00186fad284bc9e.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 752
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3880
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 860
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3452
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1204
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1564
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1604
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1128
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      PID:3268
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 536
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 512
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 1012
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:1140
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 1032
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1524
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:1448
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1896
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:4076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3372 -s 1556
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2204

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe

    MD5

    6943b3380427465a7998ddf3a96945a0

    SHA1

    abb680ef5e005da1610828d518c15a250b001fd9

    SHA256

    94e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb

    SHA512

    5c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d

  • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe

    MD5

    6943b3380427465a7998ddf3a96945a0

    SHA1

    abb680ef5e005da1610828d518c15a250b001fd9

    SHA256

    94e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb

    SHA512

    5c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d

  • memory/1128-38-0x0000000004F50000-0x0000000004F51000-memory.dmp

    Filesize

    4KB

  • memory/1128-41-0x0000000005880000-0x0000000005881000-memory.dmp

    Filesize

    4KB

  • memory/1140-95-0x0000000004E30000-0x0000000004E31000-memory.dmp

    Filesize

    4KB

  • memory/1140-102-0x0000000005660000-0x0000000005661000-memory.dmp

    Filesize

    4KB

  • memory/1448-66-0x0000000005830000-0x0000000005831000-memory.dmp

    Filesize

    4KB

  • memory/1448-63-0x0000000004F00000-0x0000000004F01000-memory.dmp

    Filesize

    4KB

  • memory/2204-94-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

    Filesize

    4KB

  • memory/2204-90-0x0000000004780000-0x0000000004781000-memory.dmp

    Filesize

    4KB

  • memory/2688-75-0x0000000004F10000-0x0000000004F11000-memory.dmp

    Filesize

    4KB

  • memory/2688-67-0x00000000049E0000-0x00000000049E1000-memory.dmp

    Filesize

    4KB

  • memory/2916-107-0x0000000004780000-0x0000000004781000-memory.dmp

    Filesize

    4KB

  • memory/2916-115-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

    Filesize

    4KB

  • memory/2940-30-0x00000000045F0000-0x00000000045F1000-memory.dmp

    Filesize

    4KB

  • memory/2940-33-0x0000000004EB0000-0x0000000004EB1000-memory.dmp

    Filesize

    4KB

  • memory/3268-88-0x0000000006970000-0x0000000006971000-memory.dmp

    Filesize

    4KB

  • memory/3268-72-0x0000000000000000-mapping.dmp

  • memory/3268-116-0x0000000000000000-mapping.dmp

  • memory/3268-119-0x0000000000000000-mapping.dmp

  • memory/3268-118-0x0000000000000000-mapping.dmp

  • memory/3268-117-0x0000000000000000-mapping.dmp

  • memory/3268-112-0x0000000000000000-mapping.dmp

  • memory/3268-113-0x0000000000000000-mapping.dmp

  • memory/3268-114-0x0000000000000000-mapping.dmp

  • memory/3268-110-0x0000000000000000-mapping.dmp

  • memory/3268-111-0x0000000000000000-mapping.dmp

  • memory/3268-106-0x0000000007860000-0x0000000007861000-memory.dmp

    Filesize

    4KB

  • memory/3268-105-0x0000000000000000-mapping.dmp

  • memory/3268-104-0x0000000000000000-mapping.dmp

  • memory/3268-103-0x0000000000000000-mapping.dmp

  • memory/3268-42-0x0000000000000000-mapping.dmp

  • memory/3268-100-0x0000000000000000-mapping.dmp

  • memory/3268-101-0x0000000000000000-mapping.dmp

  • memory/3268-45-0x00000000025E4000-0x00000000025E5000-memory.dmp

    Filesize

    4KB

  • memory/3268-46-0x0000000004040000-0x0000000004041000-memory.dmp

    Filesize

    4KB

  • memory/3268-47-0x0000000004040000-0x0000000004041000-memory.dmp

    Filesize

    4KB

  • memory/3268-48-0x0000000004160000-0x0000000004161000-memory.dmp

    Filesize

    4KB

  • memory/3268-49-0x0000000072A60000-0x000000007314E000-memory.dmp

    Filesize

    6.9MB

  • memory/3268-98-0x0000000000000000-mapping.dmp

  • memory/3268-99-0x0000000000000000-mapping.dmp

  • memory/3268-53-0x0000000000000000-mapping.dmp

  • memory/3268-54-0x0000000000000000-mapping.dmp

  • memory/3268-55-0x0000000000000000-mapping.dmp

  • memory/3268-56-0x0000000000000000-mapping.dmp

  • memory/3268-57-0x0000000000000000-mapping.dmp

  • memory/3268-93-0x00000000069D0000-0x00000000069D1000-memory.dmp

    Filesize

    4KB

  • memory/3268-59-0x0000000000000000-mapping.dmp

  • memory/3268-60-0x0000000000000000-mapping.dmp

  • memory/3268-61-0x0000000000000000-mapping.dmp

  • memory/3268-62-0x0000000000000000-mapping.dmp

  • memory/3268-89-0x00000000043F0000-0x00000000043F1000-memory.dmp

    Filesize

    4KB

  • memory/3268-87-0x0000000006FF0000-0x0000000006FF1000-memory.dmp

    Filesize

    4KB

  • memory/3268-85-0x0000000004310000-0x0000000004332000-memory.dmp

    Filesize

    136KB

  • memory/3268-70-0x0000000000000000-mapping.dmp

  • memory/3268-84-0x0000000006AF0000-0x0000000006AF1000-memory.dmp

    Filesize

    4KB

  • memory/3268-71-0x0000000000000000-mapping.dmp

  • memory/3268-74-0x0000000000000000-mapping.dmp

  • memory/3268-73-0x0000000000000000-mapping.dmp

  • memory/3268-80-0x0000000004080000-0x00000000040A4000-memory.dmp

    Filesize

    144KB

  • memory/3268-76-0x0000000000000000-mapping.dmp

  • memory/3268-77-0x0000000000000000-mapping.dmp

  • memory/3268-78-0x0000000000000000-mapping.dmp

  • memory/3268-79-0x0000000000000000-mapping.dmp

  • memory/3372-0-0x000000000263B000-0x000000000263D000-memory.dmp

    Filesize

    8KB

  • memory/3372-1-0x00000000040C0000-0x00000000040C1000-memory.dmp

    Filesize

    4KB

  • memory/3452-17-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-28-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-18-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-22-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-19-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-11-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-23-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-6-0x00000000045F0000-0x00000000045F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-24-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-25-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-26-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-27-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-12-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-13-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-14-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-15-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-16-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-29-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-21-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3452-20-0x00000000046F0000-0x00000000046F1000-memory.dmp

    Filesize

    4KB

  • memory/3880-2-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB

  • memory/3880-3-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB

  • memory/3880-5-0x00000000050A0000-0x00000000050A1000-memory.dmp

    Filesize

    4KB

  • memory/4052-50-0x0000000004D60000-0x0000000004D61000-memory.dmp

    Filesize

    4KB

  • memory/4052-51-0x0000000004D60000-0x0000000004D61000-memory.dmp

    Filesize

    4KB

  • memory/4052-58-0x0000000005290000-0x0000000005291000-memory.dmp

    Filesize

    4KB

  • memory/4076-81-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

    Filesize

    4KB

  • memory/4080-34-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

    Filesize

    4KB

  • memory/4080-37-0x00000000053F0000-0x00000000053F1000-memory.dmp

    Filesize

    4KB