Analysis

  • max time kernel
    126s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-02-2021 07:53

General

  • Target

    5568305d237c162f48e7760523f7fb0c.exe

  • Size

    622KB

  • MD5

    5568305d237c162f48e7760523f7fb0c

  • SHA1

    219426a35291132f9206a2bf3976a8f81a52fed6

  • SHA256

    b479768bf30303be4d80d2ec21ea1a5cb116307e7c637a562b28c019acd515fa

  • SHA512

    b02b72929c3a1d753e7d60cc099296cc5dc60cb71f5dfd41ec7c29f39ff58acf06fae05b14bf2a9a70f30763292a00b01602680af10f0f25442bfa1126805415

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

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

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5568305d237c162f48e7760523f7fb0c.exe
    "C:\Users\Admin\AppData\Local\Temp\5568305d237c162f48e7760523f7fb0c.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3956

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
    MD5

    edf5924ecc6f37c1bcea5a1b4c3378be

    SHA1

    936ef778a6d8a6f5fbd5a50c5eb08cea58a846ce

    SHA256

    fa8288121fc03ad692564b12fa8483fe51f4086910d748db2be43eebb6a67de2

    SHA512

    9bec4280c9ce85db81cac7794aa68be8ac49793c2f65f4629eb5d6fd4d4f8e0558dfc016d74c9c6f589b3a1bee5f6bc6c951977cb7f613520bc6b4a6d91aaee9

  • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
    MD5

    edf5924ecc6f37c1bcea5a1b4c3378be

    SHA1

    936ef778a6d8a6f5fbd5a50c5eb08cea58a846ce

    SHA256

    fa8288121fc03ad692564b12fa8483fe51f4086910d748db2be43eebb6a67de2

    SHA512

    9bec4280c9ce85db81cac7794aa68be8ac49793c2f65f4629eb5d6fd4d4f8e0558dfc016d74c9c6f589b3a1bee5f6bc6c951977cb7f613520bc6b4a6d91aaee9

  • memory/3008-4-0x0000000000A30000-0x0000000000AFF000-memory.dmp
    Filesize

    828KB

  • memory/3008-5-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/3008-2-0x0000000000D50000-0x0000000000D51000-memory.dmp
    Filesize

    4KB

  • memory/3956-17-0x0000000004E70000-0x0000000004E71000-memory.dmp
    Filesize

    4KB

  • memory/3956-21-0x0000000004F83000-0x0000000004F84000-memory.dmp
    Filesize

    4KB

  • memory/3956-10-0x0000000002800000-0x0000000002801000-memory.dmp
    Filesize

    4KB

  • memory/3956-11-0x0000000072760000-0x0000000072E4E000-memory.dmp
    Filesize

    6.9MB

  • memory/3956-12-0x0000000000980000-0x00000000009B5000-memory.dmp
    Filesize

    212KB

  • memory/3956-13-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/3956-14-0x0000000002770000-0x0000000002799000-memory.dmp
    Filesize

    164KB

  • memory/3956-15-0x0000000004F90000-0x0000000004F91000-memory.dmp
    Filesize

    4KB

  • memory/3956-16-0x0000000002900000-0x0000000002927000-memory.dmp
    Filesize

    156KB

  • memory/3956-6-0x0000000000000000-mapping.dmp
  • memory/3956-18-0x0000000004EF0000-0x0000000004EF1000-memory.dmp
    Filesize

    4KB

  • memory/3956-20-0x0000000004F82000-0x0000000004F83000-memory.dmp
    Filesize

    4KB

  • memory/3956-19-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

  • memory/3956-9-0x0000000000D60000-0x0000000000D61000-memory.dmp
    Filesize

    4KB

  • memory/3956-22-0x0000000004F84000-0x0000000004F86000-memory.dmp
    Filesize

    8KB

  • memory/3956-23-0x0000000005490000-0x0000000005491000-memory.dmp
    Filesize

    4KB

  • memory/3956-24-0x0000000005B20000-0x0000000005B21000-memory.dmp
    Filesize

    4KB

  • memory/3956-25-0x0000000005B40000-0x0000000005B41000-memory.dmp
    Filesize

    4KB

  • memory/3956-26-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
    Filesize

    4KB

  • memory/3956-27-0x0000000005E30000-0x0000000005E31000-memory.dmp
    Filesize

    4KB

  • memory/3956-28-0x00000000069F0000-0x00000000069F1000-memory.dmp
    Filesize

    4KB

  • memory/3956-29-0x0000000006BE0000-0x0000000006BE1000-memory.dmp
    Filesize

    4KB

  • memory/3956-30-0x0000000007220000-0x0000000007221000-memory.dmp
    Filesize

    4KB

  • memory/3956-31-0x00000000072D0000-0x00000000072D1000-memory.dmp
    Filesize

    4KB

  • memory/3956-32-0x0000000007C60000-0x0000000007C61000-memory.dmp
    Filesize

    4KB