Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 15:02

General

  • Target

    e98e80b300af28043252190b020ee173.exe

  • Size

    139KB

  • MD5

    e98e80b300af28043252190b020ee173

  • SHA1

    df38365f73543166e8fb859908f0b3dbc9b6e64e

  • SHA256

    ebcecaf7cc142a2954b15d4390e5275aed5a7c8f70a7c777c0288b5f3c2312ac

  • SHA512

    11d40f6529dd546cdf97c73183393418e728a64320cb1345d43056f002e469ab16eae64eb4b628b195234cf07843cb2e7fb659d46598c3de951d73d1b680b762

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://naghenrietti1.top/

http://kimballiett2.top/

http://xadriettany3.top/

http://jebeccallis4.top/

http://nityanneron5.top/

http://umayaniela6.top/

http://lynettaram7.top/

http://sadineyalas8.top/

http://geenaldencia9.top/

http://aradysiusep10.top/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

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

  • RedLine Payload 5 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Arkei Stealer Payload 1 IoCs
  • Chinese Botnet Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e98e80b300af28043252190b020ee173.exe
    "C:\Users\Admin\AppData\Local\Temp\e98e80b300af28043252190b020ee173.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Local\Temp\e98e80b300af28043252190b020ee173.exe
      "C:\Users\Admin\AppData\Local\Temp\e98e80b300af28043252190b020ee173.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2432
  • C:\Users\Admin\AppData\Local\Temp\A52.exe
    C:\Users\Admin\AppData\Local\Temp\A52.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:3020
  • C:\Users\Admin\AppData\Local\Temp\F54.exe
    C:\Users\Admin\AppData\Local\Temp\F54.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\F54.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:2144
  • C:\Users\Admin\AppData\Local\Temp\1550.exe
    C:\Users\Admin\AppData\Local\Temp\1550.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 1340
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:800
  • C:\Users\Admin\AppData\Local\Temp\19E5.exe
    C:\Users\Admin\AppData\Local\Temp\19E5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe
      "C:\Users\Admin\AppData\Local\Temp\SindonsWelfare_2021-09-26_15-02.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1324
    • C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe
      "C:\Users\Admin\AppData\Local\Temp\SolanumsYoghurt_2021-09-26_14-52.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1852
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Checks processor information in registry
      • Suspicious use of SetWindowsHookEx
      PID:1632

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1044-143-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

    Filesize

    4KB

  • memory/1324-188-0x0000000000520000-0x0000000000550000-memory.dmp

    Filesize

    192KB

  • memory/1324-190-0x0000000007130000-0x0000000007131000-memory.dmp

    Filesize

    4KB

  • memory/1324-173-0x0000000002290000-0x00000000022AF000-memory.dmp

    Filesize

    124KB

  • memory/1324-175-0x00000000026B0000-0x00000000026CE000-memory.dmp

    Filesize

    120KB

  • memory/1324-203-0x0000000004B74000-0x0000000004B76000-memory.dmp

    Filesize

    8KB

  • memory/1324-191-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/1324-195-0x0000000004B70000-0x0000000004B71000-memory.dmp

    Filesize

    4KB

  • memory/1324-197-0x0000000004B72000-0x0000000004B73000-memory.dmp

    Filesize

    4KB

  • memory/1324-198-0x0000000004B73000-0x0000000004B74000-memory.dmp

    Filesize

    4KB

  • memory/1632-194-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1632-192-0x0000000002170000-0x000000000222C000-memory.dmp

    Filesize

    752KB

  • memory/1632-205-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB

  • memory/1852-200-0x0000000004C90000-0x0000000004C91000-memory.dmp

    Filesize

    4KB

  • memory/1852-201-0x0000000004C92000-0x0000000004C93000-memory.dmp

    Filesize

    4KB

  • memory/1852-202-0x0000000004C93000-0x0000000004C94000-memory.dmp

    Filesize

    4KB

  • memory/1852-199-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/1852-196-0x00000000004D0000-0x000000000057E000-memory.dmp

    Filesize

    696KB

  • memory/1852-204-0x0000000004C94000-0x0000000004C96000-memory.dmp

    Filesize

    8KB

  • memory/1852-178-0x00000000024E0000-0x0000000002502000-memory.dmp

    Filesize

    136KB

  • memory/1852-176-0x0000000002250000-0x0000000002273000-memory.dmp

    Filesize

    140KB

  • memory/1920-147-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/1920-146-0x00000000021A0000-0x0000000002230000-memory.dmp

    Filesize

    576KB

  • memory/2348-117-0x0000000000610000-0x0000000000619000-memory.dmp

    Filesize

    36KB

  • memory/2432-115-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2996-139-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2996-138-0x0000000000450000-0x000000000047D000-memory.dmp

    Filesize

    180KB

  • memory/3008-118-0x0000000000D00000-0x0000000000D16000-memory.dmp

    Filesize

    88KB

  • memory/3020-157-0x0000000007930000-0x0000000007931000-memory.dmp

    Filesize

    4KB

  • memory/3020-154-0x00000000075E0000-0x00000000075E1000-memory.dmp

    Filesize

    4KB

  • memory/3020-160-0x0000000007B10000-0x0000000007B11000-memory.dmp

    Filesize

    4KB

  • memory/3020-128-0x0000000005F80000-0x0000000005F81000-memory.dmp

    Filesize

    4KB

  • memory/3020-159-0x0000000008710000-0x0000000008711000-memory.dmp

    Filesize

    4KB

  • memory/3020-158-0x0000000007A50000-0x0000000007A51000-memory.dmp

    Filesize

    4KB

  • memory/3020-129-0x00000000060B0000-0x00000000060B1000-memory.dmp

    Filesize

    4KB

  • memory/3020-156-0x0000000007570000-0x0000000007571000-memory.dmp

    Filesize

    4KB

  • memory/3020-155-0x0000000007CE0000-0x0000000007CE1000-memory.dmp

    Filesize

    4KB

  • memory/3020-132-0x0000000003C00000-0x0000000003C01000-memory.dmp

    Filesize

    4KB

  • memory/3020-130-0x0000000077E40000-0x0000000077FCE000-memory.dmp

    Filesize

    1.6MB

  • memory/3020-133-0x0000000006020000-0x0000000006021000-memory.dmp

    Filesize

    4KB

  • memory/3020-163-0x0000000008650000-0x0000000008651000-memory.dmp

    Filesize

    4KB

  • memory/3020-127-0x0000000006510000-0x0000000006511000-memory.dmp

    Filesize

    4KB

  • memory/3020-122-0x0000000000C40000-0x0000000000C41000-memory.dmp

    Filesize

    4KB

  • memory/3020-131-0x0000000005FE0000-0x0000000005FE1000-memory.dmp

    Filesize

    4KB