Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-11-2020 06:59

General

  • Target

    de5b69163b3ee3da6e6b852e857bc7c4.exe

  • Size

    773KB

  • MD5

    de5b69163b3ee3da6e6b852e857bc7c4

  • SHA1

    cad75eb4beb9e3f5157df853cb023d8ebacd2b1e

  • SHA256

    07f0f8308cf0da73ba917e592bc6b746fba3078b2ac25a98760f4fc30952d869

  • SHA512

    e2f6d43cd0bd236223023d718bf5a61505c7fa6f0e6199c04dd232c28ef115ec7cc32f73a1279e3ebed6b1a8ade967600f6d315a23bc41e665c5ab5b25fedc47

Score
10/10

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 44 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 13 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 16 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de5b69163b3ee3da6e6b852e857bc7c4.exe
    "C:\Users\Admin\AppData\Local\Temp\de5b69163b3ee3da6e6b852e857bc7c4.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 756
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 880
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1772
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1208
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3796
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1572
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1540
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1528
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3680
    • C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe
      bestof.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3504
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 536
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:1408
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 412
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:2828
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 1020
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:4012
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 1040
        3⤵
        • Program crash
        • Suspicious use of AdjustPrivilegeToken
        PID:3956
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1568
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1908
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1144 -s 1528
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

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/372-2-0x0000000004F10000-0x0000000004F11000-memory.dmp

    Filesize

    4KB

  • memory/372-3-0x0000000004F10000-0x0000000004F11000-memory.dmp

    Filesize

    4KB

  • memory/372-5-0x0000000005640000-0x0000000005641000-memory.dmp

    Filesize

    4KB

  • memory/1144-0-0x00000000025D6000-0x00000000025D8000-memory.dmp

    Filesize

    8KB

  • memory/1144-1-0x0000000004210000-0x0000000004211000-memory.dmp

    Filesize

    4KB

  • memory/1408-98-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/1408-99-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/1408-103-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/1408-111-0x00000000049D0000-0x00000000049D1000-memory.dmp

    Filesize

    4KB

  • memory/1772-6-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/1772-12-0x00000000049D0000-0x00000000049D1000-memory.dmp

    Filesize

    4KB

  • memory/2820-86-0x0000000004AE0000-0x0000000004AE1000-memory.dmp

    Filesize

    4KB

  • memory/2820-81-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/2828-120-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/2828-128-0x0000000004C10000-0x0000000004C11000-memory.dmp

    Filesize

    4KB

  • memory/3228-141-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3228-146-0x0000000005190000-0x0000000005191000-memory.dmp

    Filesize

    4KB

  • memory/3504-127-0x0000000000000000-mapping.dmp

  • memory/3504-161-0x0000000000000000-mapping.dmp

  • memory/3504-96-0x0000000004310000-0x0000000004311000-memory.dmp

    Filesize

    4KB

  • memory/3504-95-0x0000000004110000-0x0000000004111000-memory.dmp

    Filesize

    4KB

  • memory/3504-94-0x00000000024B4000-0x00000000024B5000-memory.dmp

    Filesize

    4KB

  • memory/3504-106-0x0000000000000000-mapping.dmp

  • memory/3504-107-0x0000000000000000-mapping.dmp

  • memory/3504-108-0x0000000000000000-mapping.dmp

  • memory/3504-109-0x0000000000000000-mapping.dmp

  • memory/3504-110-0x0000000000000000-mapping.dmp

  • memory/3504-91-0x0000000000000000-mapping.dmp

  • memory/3504-184-0x0000000000000000-mapping.dmp

  • memory/3504-114-0x0000000000000000-mapping.dmp

  • memory/3504-117-0x0000000000000000-mapping.dmp

  • memory/3504-116-0x0000000000000000-mapping.dmp

  • memory/3504-118-0x0000000000000000-mapping.dmp

  • memory/3504-179-0x0000000000000000-mapping.dmp

  • memory/3504-180-0x0000000000000000-mapping.dmp

  • memory/3504-123-0x0000000000000000-mapping.dmp

  • memory/3504-124-0x0000000000000000-mapping.dmp

  • memory/3504-125-0x0000000000000000-mapping.dmp

  • memory/3504-126-0x0000000000000000-mapping.dmp

  • memory/3504-181-0x0000000000000000-mapping.dmp

  • memory/3504-182-0x0000000000000000-mapping.dmp

  • memory/3504-183-0x0000000000000000-mapping.dmp

  • memory/3504-132-0x0000000000000000-mapping.dmp

  • memory/3504-134-0x0000000000000000-mapping.dmp

  • memory/3504-133-0x0000000000000000-mapping.dmp

  • memory/3504-135-0x0000000000000000-mapping.dmp

  • memory/3504-137-0x0000000004040000-0x0000000004064000-memory.dmp

    Filesize

    144KB

  • memory/3504-138-0x0000000006B40000-0x0000000006B41000-memory.dmp

    Filesize

    4KB

  • memory/3504-139-0x0000000004410000-0x0000000004432000-memory.dmp

    Filesize

    136KB

  • memory/3504-140-0x0000000007040000-0x0000000007041000-memory.dmp

    Filesize

    4KB

  • memory/3504-175-0x0000000000000000-mapping.dmp

  • memory/3504-144-0x0000000004600000-0x0000000004601000-memory.dmp

    Filesize

    4KB

  • memory/3504-145-0x0000000004640000-0x0000000004641000-memory.dmp

    Filesize

    4KB

  • memory/3504-177-0x0000000000000000-mapping.dmp

  • memory/3504-147-0x0000000004680000-0x0000000004681000-memory.dmp

    Filesize

    4KB

  • memory/3504-176-0x0000000000000000-mapping.dmp

  • memory/3504-151-0x0000000000000000-mapping.dmp

  • memory/3504-152-0x0000000000000000-mapping.dmp

  • memory/3504-153-0x0000000000000000-mapping.dmp

  • memory/3504-154-0x0000000000000000-mapping.dmp

  • memory/3504-155-0x0000000000000000-mapping.dmp

  • memory/3504-156-0x0000000000000000-mapping.dmp

  • memory/3504-174-0x0000000000000000-mapping.dmp

  • memory/3504-158-0x0000000000000000-mapping.dmp

  • memory/3504-159-0x0000000000000000-mapping.dmp

  • memory/3504-160-0x0000000000000000-mapping.dmp

  • memory/3504-97-0x0000000072BA0000-0x000000007328E000-memory.dmp

    Filesize

    6.9MB

  • memory/3504-162-0x0000000000000000-mapping.dmp

  • memory/3504-163-0x00000000079D0000-0x00000000079D1000-memory.dmp

    Filesize

    4KB

  • memory/3504-173-0x0000000000000000-mapping.dmp

  • memory/3504-172-0x0000000000000000-mapping.dmp

  • memory/3504-171-0x0000000000000000-mapping.dmp

  • memory/3660-129-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3680-87-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3680-90-0x0000000004F10000-0x0000000004F11000-memory.dmp

    Filesize

    4KB

  • memory/3796-71-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3808-119-0x0000000005500000-0x0000000005501000-memory.dmp

    Filesize

    4KB

  • memory/3808-112-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

    Filesize

    4KB

  • memory/3904-77-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3904-80-0x0000000005110000-0x0000000005111000-memory.dmp

    Filesize

    4KB

  • memory/3956-164-0x00000000047E0000-0x00000000047E1000-memory.dmp

    Filesize

    4KB

  • memory/3956-178-0x00000000049E0000-0x00000000049E1000-memory.dmp

    Filesize

    4KB

  • memory/4012-157-0x0000000005410000-0x0000000005411000-memory.dmp

    Filesize

    4KB

  • memory/4012-148-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

    Filesize

    4KB