Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    29-01-2022 05:21

General

  • Target

    cee9ec3f7478e35f714fed6e080f2711.exe

  • Size

    1.4MB

  • MD5

    cee9ec3f7478e35f714fed6e080f2711

  • SHA1

    54173b65efb80cdeeaa1047329dbf20fc13d8ed7

  • SHA256

    d626d2dd320f5f66816bf3c97a8dd37f1be24b722fa32601c45e3be87791ed97

  • SHA512

    774695b4f5a4b253135337af2df7accf6506c5e3718d55b51fdcad2dddc8e7bc7882f9526085e1240cb72f7fba5833ddbe60d9e07eaa2f9d00199cd0d5ade808

Malware Config

Extracted

Family

redline

C2

49.12.47.66:27973

Extracted

Family

redline

Botnet

123

C2

46.3.199.85:4329

Signatures

  • RedLine

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

  • RedLine Payload 4 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cee9ec3f7478e35f714fed6e080f2711.exe
    "C:\Users\Admin\AppData\Local\Temp\cee9ec3f7478e35f714fed6e080f2711.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      #cmd
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3216
      • C:\Users\Admin\AppData\Roaming\asf3r3.exe
        "C:\Users\Admin\AppData\Roaming\asf3r3.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1176
      • C:\Users\Admin\AppData\Roaming\e3dwefw.exe
        "C:\Users\Admin\AppData\Roaming\e3dwefw.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Windows\SysWOW64\schtasks.exe
          /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
          4⤵
          • Creates scheduled task(s)
          PID:1480
  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3296
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2440

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    MD5

    67486b272027c5c08c37d2a7dfa3b019

    SHA1

    660cd3fa71e480e03b392ccfff95b1a651ec1563

    SHA256

    cb2f3c7a11ff1993ed3a24d396beeca0f06842b9cd9097351a7c8662250ec677

    SHA512

    6565af5f8e090285258a0abf4faa1c99790b409f4ed8a4233048614ca470f1d7c4a40f951bd7c2664c567f7788f9e689afb3d72fcff853d888fef5b40051cf61

  • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
    MD5

    67486b272027c5c08c37d2a7dfa3b019

    SHA1

    660cd3fa71e480e03b392ccfff95b1a651ec1563

    SHA256

    cb2f3c7a11ff1993ed3a24d396beeca0f06842b9cd9097351a7c8662250ec677

    SHA512

    6565af5f8e090285258a0abf4faa1c99790b409f4ed8a4233048614ca470f1d7c4a40f951bd7c2664c567f7788f9e689afb3d72fcff853d888fef5b40051cf61

  • C:\Users\Admin\AppData\Roaming\asf3r3.exe
    MD5

    251a95b3e822ff316dcbeec79f622594

    SHA1

    214ffd96dbb7df6d8e437d57753131142ab3cfa1

    SHA256

    0b1dd3984b36ee6b633f22f4f90eebe1b9f32ec6d6c46134a179f69e6bd11ec7

    SHA512

    f0441fdec6cf50fb8c37a8f5707bba20cde622faa13d9426ffc1f4cd66c0ed428ca5f767aee78f6ffac9d5677d423ddced153b71363f8bcca96c63ca5a13e88f

  • C:\Users\Admin\AppData\Roaming\asf3r3.exe
    MD5

    251a95b3e822ff316dcbeec79f622594

    SHA1

    214ffd96dbb7df6d8e437d57753131142ab3cfa1

    SHA256

    0b1dd3984b36ee6b633f22f4f90eebe1b9f32ec6d6c46134a179f69e6bd11ec7

    SHA512

    f0441fdec6cf50fb8c37a8f5707bba20cde622faa13d9426ffc1f4cd66c0ed428ca5f767aee78f6ffac9d5677d423ddced153b71363f8bcca96c63ca5a13e88f

  • C:\Users\Admin\AppData\Roaming\e3dwefw.exe
    MD5

    67486b272027c5c08c37d2a7dfa3b019

    SHA1

    660cd3fa71e480e03b392ccfff95b1a651ec1563

    SHA256

    cb2f3c7a11ff1993ed3a24d396beeca0f06842b9cd9097351a7c8662250ec677

    SHA512

    6565af5f8e090285258a0abf4faa1c99790b409f4ed8a4233048614ca470f1d7c4a40f951bd7c2664c567f7788f9e689afb3d72fcff853d888fef5b40051cf61

  • C:\Users\Admin\AppData\Roaming\e3dwefw.exe
    MD5

    67486b272027c5c08c37d2a7dfa3b019

    SHA1

    660cd3fa71e480e03b392ccfff95b1a651ec1563

    SHA256

    cb2f3c7a11ff1993ed3a24d396beeca0f06842b9cd9097351a7c8662250ec677

    SHA512

    6565af5f8e090285258a0abf4faa1c99790b409f4ed8a4233048614ca470f1d7c4a40f951bd7c2664c567f7788f9e689afb3d72fcff853d888fef5b40051cf61

  • memory/1176-142-0x0000000007AC0000-0x0000000007B10000-memory.dmp
    Filesize

    320KB

  • memory/1176-141-0x0000000005470000-0x0000000005A76000-memory.dmp
    Filesize

    6.0MB

  • memory/1176-140-0x00000000055A0000-0x00000000055EB000-memory.dmp
    Filesize

    300KB

  • memory/1176-137-0x0000000000B90000-0x0000000000BB0000-memory.dmp
    Filesize

    128KB

  • memory/2492-124-0x0000000005800000-0x000000000580A000-memory.dmp
    Filesize

    40KB

  • memory/2492-118-0x0000000000800000-0x0000000000960000-memory.dmp
    Filesize

    1.4MB

  • memory/2492-119-0x0000000005830000-0x0000000005D2E000-memory.dmp
    Filesize

    5.0MB

  • memory/2492-120-0x0000000005270000-0x0000000005271000-memory.dmp
    Filesize

    4KB

  • memory/2492-121-0x00000000053D0000-0x0000000005462000-memory.dmp
    Filesize

    584KB

  • memory/2492-122-0x0000000005770000-0x00000000057E6000-memory.dmp
    Filesize

    472KB

  • memory/2492-123-0x0000000005350000-0x000000000536E000-memory.dmp
    Filesize

    120KB

  • memory/3216-133-0x0000000006D50000-0x0000000006D8E000-memory.dmp
    Filesize

    248KB

  • memory/3216-127-0x0000000005790000-0x00000000057A2000-memory.dmp
    Filesize

    72KB

  • memory/3216-126-0x0000000005D80000-0x0000000006386000-memory.dmp
    Filesize

    6.0MB

  • memory/3216-125-0x0000000000400000-0x000000000046C000-memory.dmp
    Filesize

    432KB

  • memory/3216-128-0x00000000058C0000-0x00000000059CA000-memory.dmp
    Filesize

    1.0MB

  • memory/3216-134-0x0000000007770000-0x00000000077BB000-memory.dmp
    Filesize

    300KB

  • memory/3216-129-0x0000000005BA0000-0x0000000005D62000-memory.dmp
    Filesize

    1.8MB

  • memory/3216-132-0x0000000006BE0000-0x0000000006C46000-memory.dmp
    Filesize

    408KB

  • memory/3216-131-0x0000000006E40000-0x000000000736C000-memory.dmp
    Filesize

    5.2MB

  • memory/3216-130-0x0000000005770000-0x0000000005D76000-memory.dmp
    Filesize

    6.0MB