Analysis

  • max time kernel
    30s
  • max time network
    72s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-12-2020 08:04

General

  • Target

    QUOTE_27788387_0092338_0019992DOC.exe

  • Size

    1.2MB

  • MD5

    63504c97d96f3c4516632d9dd03a7598

  • SHA1

    21389d6e11b286852168cbc78b6636669d015b11

  • SHA256

    e10a0b049f468fe1e88dc589c37e6743a248f6f9461f99b0c1ac983694fe958e

  • SHA512

    7ad45d449a99747e9968d9bd35c8ac378e62206f4f6f729da2199548f7f202281721eef5d648945d0b0a5890bce58cc0c02a96429759902a9f31814eeb194e7f

Malware Config

Signatures

  • RedLine

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

  • RedLine Payload 2 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTE_27788387_0092338_0019992DOC.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTE_27788387_0092338_0019992DOC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Users\Admin\AppData\Local\Temp\QUOTE_27788387_0092338_0019992DOC.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTE_27788387_0092338_0019992DOC.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del "C:\Users\Admin\AppData\Local\Temp\QUOTE_27788387_0092338_0019992DOC.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:900
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 3
          4⤵
          • Runs ping.exe
          PID:3896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\QUOTE_27788387_0092338_0019992DOC.exe.log

    MD5

    c02f2f632d0e8cc5edb8ad3b657fa896

    SHA1

    aea7ad1a91dba1070ea7b4a8a2d547f07bf2c443

    SHA256

    b95f5ae3b36c2cb4d9287cfc046079cec8208388972f09c15a839fbc2caf822d

    SHA512

    4f3b302f9a17a66c82fd21c89d360c6a8a927edf48b3cbf039176d7cd77036bce5efa382d3be1fc089b8e6b3caf255f34cd26522cc9049bd399368ae2c2026e9

  • memory/900-30-0x0000000000000000-mapping.dmp

  • memory/972-3-0x00000000007C0000-0x00000000007C1000-memory.dmp

    Filesize

    4KB

  • memory/972-5-0x0000000005520000-0x0000000005521000-memory.dmp

    Filesize

    4KB

  • memory/972-6-0x0000000005120000-0x0000000005121000-memory.dmp

    Filesize

    4KB

  • memory/972-7-0x0000000005370000-0x0000000005371000-memory.dmp

    Filesize

    4KB

  • memory/972-8-0x00000000052F0000-0x00000000052F1000-memory.dmp

    Filesize

    4KB

  • memory/972-9-0x0000000005310000-0x0000000005339000-memory.dmp

    Filesize

    164KB

  • memory/972-2-0x0000000073A30000-0x000000007411E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-17-0x00000000055D0000-0x00000000055D1000-memory.dmp

    Filesize

    4KB

  • memory/2176-21-0x0000000006B30000-0x0000000006B31000-memory.dmp

    Filesize

    4KB

  • memory/2176-16-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

    Filesize

    4KB

  • memory/2176-11-0x0000000000420652-mapping.dmp

  • memory/2176-18-0x00000000055B0000-0x00000000055B1000-memory.dmp

    Filesize

    4KB

  • memory/2176-19-0x0000000005610000-0x0000000005611000-memory.dmp

    Filesize

    4KB

  • memory/2176-20-0x00000000058B0000-0x00000000058B1000-memory.dmp

    Filesize

    4KB

  • memory/2176-13-0x0000000073A30000-0x000000007411E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-22-0x0000000007230000-0x0000000007231000-memory.dmp

    Filesize

    4KB

  • memory/2176-25-0x0000000006E20000-0x0000000006E21000-memory.dmp

    Filesize

    4KB

  • memory/2176-26-0x0000000006DA0000-0x0000000006DA1000-memory.dmp

    Filesize

    4KB

  • memory/2176-27-0x0000000007170000-0x0000000007171000-memory.dmp

    Filesize

    4KB

  • memory/2176-28-0x0000000008AD0000-0x0000000008AD1000-memory.dmp

    Filesize

    4KB

  • memory/2176-10-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3896-31-0x0000000000000000-mapping.dmp