Analysis

  • max time kernel
    115s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-02-2021 11:01

General

  • Target

    18889b8e2068be41fd7c4cd9b5c2bfe4.exe

  • Size

    530KB

  • MD5

    18889b8e2068be41fd7c4cd9b5c2bfe4

  • SHA1

    a670604471415e475443a752f53d02553d5b5de7

  • SHA256

    b2e0c72237dbad9cbd82ec93814b1b078779d3016d4e7d18b7bd5ff2cdeb9c68

  • SHA512

    bbe46d0e3808e3914793b969f4c9a92abafd3afb4cff5bc90ba9ea0a9ca3a07c15d6a3baf661c5b60a947efb1b1ae4c8edab3a9ed95522053a9d54d3bdccb5c4

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\18889b8e2068be41fd7c4cd9b5c2bfe4.exe
    "C:\Users\Admin\AppData\Local\Temp\18889b8e2068be41fd7c4cd9b5c2bfe4.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Users\Admin\AppData\Roaming\paperships\noabu.exe
      noabu.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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/740-3-0x0000000000D20000-0x0000000000DEF000-memory.dmp
    Filesize

    828KB

  • memory/740-4-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/740-2-0x0000000001050000-0x0000000001051000-memory.dmp
    Filesize

    4KB

  • memory/1296-16-0x00000000027D0000-0x00000000027F7000-memory.dmp
    Filesize

    156KB

  • memory/1296-20-0x00000000028D0000-0x00000000028D1000-memory.dmp
    Filesize

    4KB

  • memory/1296-9-0x0000000002910000-0x0000000002911000-memory.dmp
    Filesize

    4KB

  • memory/1296-10-0x00000000008B0000-0x00000000008E5000-memory.dmp
    Filesize

    212KB

  • memory/1296-11-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/1296-12-0x0000000073000000-0x00000000736EE000-memory.dmp
    Filesize

    6.9MB

  • memory/1296-13-0x0000000005170000-0x0000000005171000-memory.dmp
    Filesize

    4KB

  • memory/1296-14-0x0000000002610000-0x0000000002639000-memory.dmp
    Filesize

    164KB

  • memory/1296-15-0x0000000005180000-0x0000000005181000-memory.dmp
    Filesize

    4KB

  • memory/1296-5-0x0000000000000000-mapping.dmp
  • memory/1296-17-0x0000000002830000-0x0000000002831000-memory.dmp
    Filesize

    4KB

  • memory/1296-18-0x0000000005172000-0x0000000005173000-memory.dmp
    Filesize

    4KB

  • memory/1296-19-0x0000000005173000-0x0000000005174000-memory.dmp
    Filesize

    4KB

  • memory/1296-8-0x0000000000D10000-0x0000000000D11000-memory.dmp
    Filesize

    4KB

  • memory/1296-21-0x0000000005680000-0x0000000005681000-memory.dmp
    Filesize

    4KB

  • memory/1296-22-0x0000000005140000-0x0000000005141000-memory.dmp
    Filesize

    4KB

  • memory/1296-23-0x0000000005174000-0x0000000005176000-memory.dmp
    Filesize

    8KB

  • memory/1296-24-0x0000000005C90000-0x0000000005C91000-memory.dmp
    Filesize

    4KB

  • memory/1296-25-0x0000000005DF0000-0x0000000005DF1000-memory.dmp
    Filesize

    4KB

  • memory/1296-26-0x0000000005F70000-0x0000000005F71000-memory.dmp
    Filesize

    4KB

  • memory/1296-27-0x0000000006B30000-0x0000000006B31000-memory.dmp
    Filesize

    4KB

  • memory/1296-28-0x0000000006D20000-0x0000000006D21000-memory.dmp
    Filesize

    4KB

  • memory/1296-29-0x0000000007360000-0x0000000007361000-memory.dmp
    Filesize

    4KB

  • memory/1296-30-0x0000000007410000-0x0000000007411000-memory.dmp
    Filesize

    4KB

  • memory/1296-31-0x0000000007C70000-0x0000000007C71000-memory.dmp
    Filesize

    4KB