Analysis

  • max time kernel
    79s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    10-08-2021 11:13

General

  • Target

    onetap.exe

  • Size

    400KB

  • MD5

    7914f8165ade3f483e1f62dce8ec8828

  • SHA1

    7ac59abb131d0644d0f0aa31cb99cf0a415deb9e

  • SHA256

    e5b091808b73fbf1b94a24bb98d8ac945012ec6b69f0979371af225ecdb804df

  • SHA512

    e3b4e163e9cbb2fb4719c09c2274af3e068f762d570b1d24093be411ef9b81ba91c10d92317a8af6a050bc4dd34a9a4bc67861ce00bff5e09383281e95163aa7

Malware Config

Extracted

Family

redline

Botnet

@tupa187

C2

37.1.213.214:63028

Signatures

  • RedLine

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

  • RedLine Payload 3 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\onetap.exe
    "C:\Users\Admin\AppData\Local\Temp\onetap.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:532
    • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
      C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2168

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/532-120-0x0000000006C90000-0x0000000006CD9000-memory.dmp

    Filesize

    292KB

  • memory/532-117-0x0000000005220000-0x0000000005221000-memory.dmp

    Filesize

    4KB

  • memory/532-119-0x0000000005220000-0x000000000571E000-memory.dmp

    Filesize

    5.0MB

  • memory/532-114-0x00000000008F0000-0x00000000008F1000-memory.dmp

    Filesize

    4KB

  • memory/532-125-0x0000000006E20000-0x0000000006E8B000-memory.dmp

    Filesize

    428KB

  • memory/532-118-0x00000000052F0000-0x00000000052F1000-memory.dmp

    Filesize

    4KB

  • memory/532-116-0x0000000005720000-0x0000000005721000-memory.dmp

    Filesize

    4KB

  • memory/2168-132-0x00000000052E0000-0x00000000052E1000-memory.dmp

    Filesize

    4KB

  • memory/2168-126-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2168-133-0x0000000004D90000-0x0000000004D91000-memory.dmp

    Filesize

    4KB

  • memory/2168-134-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

    Filesize

    4KB

  • memory/2168-135-0x0000000004E30000-0x0000000004E31000-memory.dmp

    Filesize

    4KB

  • memory/2168-136-0x00000000050A0000-0x00000000050A1000-memory.dmp

    Filesize

    4KB

  • memory/2168-137-0x0000000004CD0000-0x00000000052D6000-memory.dmp

    Filesize

    6.0MB

  • memory/2168-138-0x0000000005F90000-0x0000000005F91000-memory.dmp

    Filesize

    4KB

  • memory/2168-139-0x0000000006690000-0x0000000006691000-memory.dmp

    Filesize

    4KB

  • memory/2168-140-0x0000000006250000-0x0000000006251000-memory.dmp

    Filesize

    4KB

  • memory/2168-143-0x0000000006BC0000-0x0000000006BC1000-memory.dmp

    Filesize

    4KB

  • memory/2168-144-0x0000000006DC0000-0x0000000006DC1000-memory.dmp

    Filesize

    4KB