Analysis

  • max time kernel
    150s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • 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

redline

Botnet

installszxc

C2

138.124.186.2:27999

Extracted

Family

redline

Botnet

z0rm1onbuild

C2

45.156.21.209:56326

Extracted

Family

raccoon

Botnet

b2f2e53f9e27f901d453d8f6fbafe1b4d5266bb7

Attributes
  • url4cnc

    https://t.me/hcdrom1

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4

Attributes
  • url4cnc

    https://t.me/agrybirdsgamerept

rc4.plain
rc4.plain

Extracted

Family

redline

Botnet

Bliss

C2

185.237.98.178:62607

Extracted

Family

redline

Botnet

karma

C2

94.103.9.133:39323

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 8 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 14 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 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 49 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 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:2044
    • 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:524
  • C:\Users\Admin\AppData\Local\Temp\C85D.exe
    C:\Users\Admin\AppData\Local\Temp\C85D.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Users\Admin\AppData\Local\Temp\C85D.exe
      C:\Users\Admin\AppData\Local\Temp\C85D.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1288
  • C:\Users\Admin\AppData\Local\Temp\D059.exe
    C:\Users\Admin\AppData\Local\Temp\D059.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:904
  • C:\Users\Admin\AppData\Local\Temp\DA1A.exe
    C:\Users\Admin\AppData\Local\Temp\DA1A.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\ProgramData\Stub.exe
      "C:\ProgramData\Stub.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1816
  • C:\Users\Admin\AppData\Local\Temp\DDC3.exe
    C:\Users\Admin\AppData\Local\Temp\DDC3.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:316
  • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
    C:\Users\Admin\AppData\Local\Temp\EEE4.exe
    1⤵
    • Executes dropped EXE
    PID:1176
  • C:\Users\Admin\AppData\Local\Temp\F70F.exe
    C:\Users\Admin\AppData\Local\Temp\F70F.exe
    1⤵
    • Executes dropped EXE
    PID:1564
  • C:\Users\Admin\AppData\Local\Temp\FC6D.exe
    C:\Users\Admin\AppData\Local\Temp\FC6D.exe
    1⤵
    • Executes dropped EXE
    PID:300
  • C:\Users\Admin\AppData\Local\Temp\C08.exe
    C:\Users\Admin\AppData\Local\Temp\C08.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1580
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C08.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1820
  • C:\Users\Admin\AppData\Local\Temp\102E.exe
    C:\Users\Admin\AppData\Local\Temp\102E.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:664
    • 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:1248
    • 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:1956
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      PID:1372
  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe"
    1⤵
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1856
    • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
      "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe" Win7
      2⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:1732

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/300-116-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/300-115-0x0000000000350000-0x00000000003E0000-memory.dmp

    Filesize

    576KB

  • memory/316-88-0x0000000000A50000-0x0000000000A51000-memory.dmp

    Filesize

    4KB

  • memory/316-120-0x000000001AF66000-0x000000001AF85000-memory.dmp

    Filesize

    124KB

  • memory/316-89-0x000000001AF60000-0x000000001AF62000-memory.dmp

    Filesize

    8KB

  • memory/316-98-0x00000000001F0000-0x000000000020E000-memory.dmp

    Filesize

    120KB

  • memory/524-61-0x0000000075D11000-0x0000000075D13000-memory.dmp

    Filesize

    8KB

  • memory/524-59-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/664-127-0x0000000000E50000-0x0000000000E51000-memory.dmp

    Filesize

    4KB

  • memory/904-76-0x0000000001000000-0x0000000001001000-memory.dmp

    Filesize

    4KB

  • memory/904-78-0x00000000004B0000-0x00000000004B1000-memory.dmp

    Filesize

    4KB

  • memory/1176-102-0x00000000000F0000-0x00000000000F1000-memory.dmp

    Filesize

    4KB

  • memory/1176-108-0x0000000000300000-0x0000000000A93000-memory.dmp

    Filesize

    7.6MB

  • memory/1176-107-0x0000000000140000-0x0000000000141000-memory.dmp

    Filesize

    4KB

  • memory/1176-106-0x0000000000130000-0x0000000000131000-memory.dmp

    Filesize

    4KB

  • memory/1176-105-0x0000000000120000-0x0000000000121000-memory.dmp

    Filesize

    4KB

  • memory/1176-104-0x0000000000110000-0x0000000000111000-memory.dmp

    Filesize

    4KB

  • memory/1176-103-0x0000000000100000-0x0000000000101000-memory.dmp

    Filesize

    4KB

  • memory/1220-90-0x0000000003D80000-0x0000000003D96000-memory.dmp

    Filesize

    88KB

  • memory/1220-63-0x0000000003AF0000-0x0000000003B06000-memory.dmp

    Filesize

    88KB

  • memory/1248-152-0x00000000020B0000-0x00000000020CE000-memory.dmp

    Filesize

    120KB

  • memory/1248-151-0x00000000005B0000-0x00000000005CF000-memory.dmp

    Filesize

    124KB

  • memory/1248-154-0x0000000000230000-0x0000000000260000-memory.dmp

    Filesize

    192KB

  • memory/1248-155-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/1248-156-0x00000000023C1000-0x00000000023C2000-memory.dmp

    Filesize

    4KB

  • memory/1248-159-0x00000000023C4000-0x00000000023C6000-memory.dmp

    Filesize

    8KB

  • memory/1248-158-0x00000000023C3000-0x00000000023C4000-memory.dmp

    Filesize

    4KB

  • memory/1248-157-0x00000000023C2000-0x00000000023C3000-memory.dmp

    Filesize

    4KB

  • memory/1412-82-0x0000000000F70000-0x0000000000F71000-memory.dmp

    Filesize

    4KB

  • memory/1412-84-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

    Filesize

    4KB

  • memory/1580-122-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/1580-121-0x0000000000270000-0x000000000029D000-memory.dmp

    Filesize

    180KB

  • memory/1816-95-0x0000000000B80000-0x0000000000B81000-memory.dmp

    Filesize

    4KB

  • memory/1816-97-0x00000000049F0000-0x00000000049F1000-memory.dmp

    Filesize

    4KB

  • memory/1856-163-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB

  • memory/1856-161-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/1856-160-0x00000000004D0000-0x000000000058C000-memory.dmp

    Filesize

    752KB

  • memory/1956-146-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/1956-142-0x0000000002050000-0x0000000002073000-memory.dmp

    Filesize

    140KB

  • memory/1956-143-0x0000000002110000-0x0000000002132000-memory.dmp

    Filesize

    136KB

  • memory/1956-145-0x0000000000230000-0x0000000000267000-memory.dmp

    Filesize

    220KB

  • memory/1956-147-0x0000000004911000-0x0000000004912000-memory.dmp

    Filesize

    4KB

  • memory/1956-150-0x0000000004914000-0x0000000004916000-memory.dmp

    Filesize

    8KB

  • memory/1956-149-0x0000000004913000-0x0000000004914000-memory.dmp

    Filesize

    4KB

  • memory/1956-148-0x0000000004912000-0x0000000004913000-memory.dmp

    Filesize

    4KB

  • memory/2044-62-0x0000000000220000-0x0000000000229000-memory.dmp

    Filesize

    36KB