Analysis

  • max time kernel
    18s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-02-2021 19:14

General

  • Target

    d888d2ee464b54bd9cc94f3e9a8dba21.exe

  • Size

    655KB

  • MD5

    d888d2ee464b54bd9cc94f3e9a8dba21

  • SHA1

    f8a5049a84b0534cb446ee405cfd4efbed55d8e7

  • SHA256

    cd31f1d60d83c4d03489059b88552f8f4d63e81af21ba4656b5637a638504708

  • SHA512

    92b02eaa2c025b91fd330fba07ac45bed982ce3a1a79f5a486de0b885eb1fcfff3f393c6cd112ecb1caa3f37251292adb826412d654f72ce9fae20954babcf44

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\d888d2ee464b54bd9cc94f3e9a8dba21.exe
    "C:\Users\Admin\AppData\Local\Temp\d888d2ee464b54bd9cc94f3e9a8dba21.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3848

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

    b193f6ad44a0e3a55782e365ad1b0082

    SHA1

    a3187be12fe673b70640096db4a62a52923a5dbb

    SHA256

    1ad35ecffd662312ffa048ae8b85344267ebdd6d5c3be375c99b84c57d3ef117

    SHA512

    59722aafb85543225a17743cefaec55128813569cf898554ce8b9ef818a3eba564248184e656db4d7333a5923e6c5bed56da6eb6626ecc31a9d66dbb0b2a4820

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

    b193f6ad44a0e3a55782e365ad1b0082

    SHA1

    a3187be12fe673b70640096db4a62a52923a5dbb

    SHA256

    1ad35ecffd662312ffa048ae8b85344267ebdd6d5c3be375c99b84c57d3ef117

    SHA512

    59722aafb85543225a17743cefaec55128813569cf898554ce8b9ef818a3eba564248184e656db4d7333a5923e6c5bed56da6eb6626ecc31a9d66dbb0b2a4820

  • memory/3848-16-0x0000000002490000-0x0000000002491000-memory.dmp
    Filesize

    4KB

  • memory/3848-29-0x0000000006E10000-0x0000000006E11000-memory.dmp
    Filesize

    4KB

  • memory/3848-30-0x0000000006EC0000-0x0000000006EC1000-memory.dmp
    Filesize

    4KB

  • memory/3848-17-0x0000000002492000-0x0000000002493000-memory.dmp
    Filesize

    4KB

  • memory/3848-8-0x0000000002110000-0x0000000002111000-memory.dmp
    Filesize

    4KB

  • memory/3848-9-0x00000000024F0000-0x00000000024F1000-memory.dmp
    Filesize

    4KB

  • memory/3848-10-0x0000000072480000-0x0000000072B6E000-memory.dmp
    Filesize

    6.9MB

  • memory/3848-11-0x00000000023A0000-0x00000000023CE000-memory.dmp
    Filesize

    184KB

  • memory/3848-12-0x0000000004A60000-0x0000000004A61000-memory.dmp
    Filesize

    4KB

  • memory/3848-13-0x0000000002110000-0x0000000002147000-memory.dmp
    Filesize

    220KB

  • memory/3848-14-0x00000000024A0000-0x00000000024CC000-memory.dmp
    Filesize

    176KB

  • memory/3848-15-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/3848-31-0x0000000007850000-0x0000000007851000-memory.dmp
    Filesize

    4KB

  • memory/3848-5-0x0000000000000000-mapping.dmp
  • memory/3848-22-0x0000000005710000-0x0000000005711000-memory.dmp
    Filesize

    4KB

  • memory/3848-19-0x0000000004F60000-0x0000000004F61000-memory.dmp
    Filesize

    4KB

  • memory/3848-20-0x0000000004FF0000-0x0000000004FF1000-memory.dmp
    Filesize

    4KB

  • memory/3848-21-0x0000000005070000-0x0000000005071000-memory.dmp
    Filesize

    4KB

  • memory/3848-18-0x0000000002493000-0x0000000002494000-memory.dmp
    Filesize

    4KB

  • memory/3848-23-0x0000000005730000-0x0000000005731000-memory.dmp
    Filesize

    4KB

  • memory/3848-24-0x00000000058A0000-0x00000000058A1000-memory.dmp
    Filesize

    4KB

  • memory/3848-25-0x0000000002494000-0x0000000002496000-memory.dmp
    Filesize

    8KB

  • memory/3848-26-0x0000000005A20000-0x0000000005A21000-memory.dmp
    Filesize

    4KB

  • memory/3848-27-0x00000000065F0000-0x00000000065F1000-memory.dmp
    Filesize

    4KB

  • memory/3848-28-0x00000000067D0000-0x00000000067D1000-memory.dmp
    Filesize

    4KB

  • memory/4776-3-0x0000000002350000-0x000000000241F000-memory.dmp
    Filesize

    828KB

  • memory/4776-4-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/4776-2-0x0000000002350000-0x0000000002351000-memory.dmp
    Filesize

    4KB