Analysis

  • max time kernel
    18s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-02-2021 19:16

General

  • Target

    6257af2ce3336b7fa6debe8614c9ab81.exe

  • Size

    655KB

  • MD5

    6257af2ce3336b7fa6debe8614c9ab81

  • SHA1

    0eed0a8362f934887b3dd05bdc4498c5576a1216

  • SHA256

    4b6db0ab009cf8babc3d2f5390b8dba1ae7367c24cb0988dd96d04a4b25a2b4a

  • SHA512

    57edde7c5ff6ac7a90372270a164d5805f78804238dfb253d9d13624115904f1aeffe09f65bbb527920ff4375fad5952a19c08aaf907f3c4ad8e8adbf090dee5

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\6257af2ce3336b7fa6debe8614c9ab81.exe
    "C:\Users\Admin\AppData\Local\Temp\6257af2ce3336b7fa6debe8614c9ab81.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2628

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/2628-16-0x0000000004B40000-0x0000000004B6C000-memory.dmp
    Filesize

    176KB

  • memory/2628-8-0x0000000002190000-0x0000000002191000-memory.dmp
    Filesize

    4KB

  • memory/2628-18-0x0000000005130000-0x0000000005131000-memory.dmp
    Filesize

    4KB

  • memory/2628-32-0x0000000007860000-0x0000000007861000-memory.dmp
    Filesize

    4KB

  • memory/2628-20-0x0000000004BA2000-0x0000000004BA3000-memory.dmp
    Filesize

    4KB

  • memory/2628-9-0x0000000002190000-0x0000000002191000-memory.dmp
    Filesize

    4KB

  • memory/2628-10-0x0000000002310000-0x0000000002311000-memory.dmp
    Filesize

    4KB

  • memory/2628-11-0x0000000000560000-0x0000000000597000-memory.dmp
    Filesize

    220KB

  • memory/2628-12-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/2628-13-0x0000000072DC0000-0x00000000734AE000-memory.dmp
    Filesize

    6.9MB

  • memory/2628-14-0x00000000021E0000-0x000000000220E000-memory.dmp
    Filesize

    184KB

  • memory/2628-19-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/2628-31-0x0000000007000000-0x0000000007001000-memory.dmp
    Filesize

    4KB

  • memory/2628-17-0x00000000050B0000-0x00000000050B1000-memory.dmp
    Filesize

    4KB

  • memory/2628-30-0x0000000006F50000-0x0000000006F51000-memory.dmp
    Filesize

    4KB

  • memory/2628-5-0x0000000000000000-mapping.dmp
  • memory/2628-15-0x0000000004BB0000-0x0000000004BB1000-memory.dmp
    Filesize

    4KB

  • memory/2628-21-0x0000000004BA3000-0x0000000004BA4000-memory.dmp
    Filesize

    4KB

  • memory/2628-22-0x0000000004BA4000-0x0000000004BA6000-memory.dmp
    Filesize

    8KB

  • memory/2628-23-0x00000000051B0000-0x00000000051B1000-memory.dmp
    Filesize

    4KB

  • memory/2628-24-0x0000000005850000-0x0000000005851000-memory.dmp
    Filesize

    4KB

  • memory/2628-25-0x0000000005870000-0x0000000005871000-memory.dmp
    Filesize

    4KB

  • memory/2628-26-0x00000000059E0000-0x00000000059E1000-memory.dmp
    Filesize

    4KB

  • memory/2628-27-0x0000000005B60000-0x0000000005B61000-memory.dmp
    Filesize

    4KB

  • memory/2628-28-0x0000000006730000-0x0000000006731000-memory.dmp
    Filesize

    4KB

  • memory/2628-29-0x0000000006910000-0x0000000006911000-memory.dmp
    Filesize

    4KB

  • memory/4012-4-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/4012-2-0x0000000002380000-0x0000000002381000-memory.dmp
    Filesize

    4KB

  • memory/4012-3-0x00000000007C0000-0x000000000088F000-memory.dmp
    Filesize

    828KB