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Analysis

  • max time kernel
    150s
  • max time network
    192s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    08-07-2021 13:30

General

  • Target

    toolspab2 (18).exe

  • Size

    315KB

  • MD5

    1d20e1f65938e837ef1b88f10f1bd6c3

  • SHA1

    703d7098dbfc476d2181b7fc041cc23e49c368f1

  • SHA256

    05cd7440851f13dd8f489bb3c06eba385d85d7d9a77a612049c04c541a88593d

  • SHA512

    f9d333abe1f721b8d45d7bc6b5f286af09a8d233bd1d41f0ad891840cf742364aeca2cb6ccd6543f56a8eaf32804f82f72f961d16d5ba663ad706d164915a196

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

1

C2

45.32.235.238:45555

Extracted

Family

redline

Botnet

agressor

C2

65.21.122.45:8085

Signatures

  • 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.

  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:828
  • C:\Users\Admin\AppData\Local\Temp\7A1F.exe
    C:\Users\Admin\AppData\Local\Temp\7A1F.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1464
  • C:\Users\Admin\AppData\Local\Temp\7BC6.exe
    C:\Users\Admin\AppData\Local\Temp\7BC6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1948
  • C:\Users\Admin\AppData\Local\Temp\BA4C.exe
    C:\Users\Admin\AppData\Local\Temp\BA4C.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Users\Admin\AppData\Local\Temp\BA4C.exe
      C:\Users\Admin\AppData\Local\Temp\BA4C.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1716
  • C:\Users\Admin\AppData\Local\Temp\BDE6.exe
    C:\Users\Admin\AppData\Local\Temp\BDE6.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:948
  • C:\Users\Admin\AppData\Local\Temp\C047.exe
    C:\Users\Admin\AppData\Local\Temp\C047.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:564
  • C:\Users\Admin\AppData\Local\Temp\CDB0.exe
    C:\Users\Admin\AppData\Local\Temp\CDB0.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks SCSI registry key(s)
    PID:1584
  • C:\Users\Admin\AppData\Local\Temp\D84B.exe
    C:\Users\Admin\AppData\Local\Temp\D84B.exe
    1⤵
    • Executes dropped EXE
    PID:1996
  • C:\Users\Admin\AppData\Local\Temp\E42F.exe
    C:\Users\Admin\AppData\Local\Temp\E42F.exe
    1⤵
    • Executes dropped EXE
    PID:828
  • C:\Users\Admin\AppData\Local\Temp\F040.exe
    C:\Users\Admin\AppData\Local\Temp\F040.exe
    1⤵
      PID:1700

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/564-96-0x0000000000220000-0x000000000024F000-memory.dmp

      Filesize

      188KB

    • memory/564-94-0x0000000000510000-0x000000000052B000-memory.dmp

      Filesize

      108KB

    • memory/564-103-0x00000000020C3000-0x00000000020C4000-memory.dmp

      Filesize

      4KB

    • memory/564-104-0x00000000020C4000-0x00000000020C6000-memory.dmp

      Filesize

      8KB

    • memory/564-101-0x00000000020C2000-0x00000000020C3000-memory.dmp

      Filesize

      4KB

    • memory/564-98-0x0000000001E70000-0x0000000001E89000-memory.dmp

      Filesize

      100KB

    • memory/564-97-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/564-95-0x00000000020C1000-0x00000000020C2000-memory.dmp

      Filesize

      4KB

    • memory/780-77-0x0000000000280000-0x0000000000281000-memory.dmp

      Filesize

      4KB

    • memory/780-82-0x00000000048F0000-0x00000000048F1000-memory.dmp

      Filesize

      4KB

    • memory/828-59-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/828-61-0x0000000075551000-0x0000000075553000-memory.dmp

      Filesize

      8KB

    • memory/948-105-0x0000000000400000-0x000000000049E000-memory.dmp

      Filesize

      632KB

    • memory/948-93-0x0000000001CD0000-0x0000000001D61000-memory.dmp

      Filesize

      580KB

    • memory/1164-63-0x0000000000220000-0x000000000022C000-memory.dmp

      Filesize

      48KB

    • memory/1264-65-0x0000000002AB0000-0x0000000002AC7000-memory.dmp

      Filesize

      92KB

    • memory/1584-112-0x0000000000400000-0x0000000000457000-memory.dmp

      Filesize

      348KB

    • memory/1584-111-0x0000000000220000-0x0000000000229000-memory.dmp

      Filesize

      36KB

    • memory/1716-88-0x0000000000400000-0x000000000041E000-memory.dmp

      Filesize

      120KB

    • memory/1716-85-0x0000000000400000-0x000000000041E000-memory.dmp

      Filesize

      120KB

    • memory/1716-102-0x0000000004D60000-0x0000000004D61000-memory.dmp

      Filesize

      4KB

    • memory/1996-117-0x0000000000400000-0x000000000046F000-memory.dmp

      Filesize

      444KB

    • memory/1996-119-0x00000000047D1000-0x00000000047D2000-memory.dmp

      Filesize

      4KB

    • memory/1996-120-0x00000000047D2000-0x00000000047D3000-memory.dmp

      Filesize

      4KB

    • memory/1996-121-0x00000000047D3000-0x00000000047D4000-memory.dmp

      Filesize

      4KB