Resubmissions

26-09-2021 14:45

210926-r43blaehcn 10

26-09-2021 14:26

210926-rrve8aehh8 10

Analysis

  • max time kernel
    155s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-09-2021 14:26

General

  • Target

    3dd4ba94c558b54ba1fe639566cbc368.exe

  • Size

    237KB

  • MD5

    3dd4ba94c558b54ba1fe639566cbc368

  • SHA1

    8c44f1c918c3d2fd48694e8af653e473be3e02c1

  • SHA256

    c75b223b462ba88c62c1c8d848a845e7aeacc0ec0c96a7ecf1644e782accdd52

  • SHA512

    58e828507bd3be52ea340ed835c3dc06a655db0a067c746ef65e7382d2b09eb5e7d6847dc679b89539826b598749e60ddf62859e25930b8e586acc11228bb1fa

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

z0rm1onbuild

C2

45.156.21.209:56326

Extracted

Family

redline

Botnet

installszxc

C2

138.124.186.2:27999

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

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 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 16 IoCs
  • Checks BIOS information in registry 2 TTPs 4 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 4 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 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 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 24 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe
    "C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:784
    • C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe
      "C:\Users\Admin\AppData\Local\Temp\3dd4ba94c558b54ba1fe639566cbc368.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1000
  • C:\Users\Admin\AppData\Local\Temp\C5AE.exe
    C:\Users\Admin\AppData\Local\Temp\C5AE.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\C5AE.exe
      C:\Users\Admin\AppData\Local\Temp\C5AE.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1748
  • C:\Users\Admin\AppData\Local\Temp\CDAB.exe
    C:\Users\Admin\AppData\Local\Temp\CDAB.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1532
  • C:\Users\Admin\AppData\Local\Temp\D73D.exe
    C:\Users\Admin\AppData\Local\Temp\D73D.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\ProgramData\Stub.exe
      "C:\ProgramData\Stub.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1232
  • C:\Users\Admin\AppData\Local\Temp\DAE6.exe
    C:\Users\Admin\AppData\Local\Temp\DAE6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1684
  • C:\Users\Admin\AppData\Local\Temp\EAEE.exe
    C:\Users\Admin\AppData\Local\Temp\EAEE.exe
    1⤵
    • Executes dropped EXE
    PID:1248
  • C:\Users\Admin\AppData\Local\Temp\F319.exe
    C:\Users\Admin\AppData\Local\Temp\F319.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:652
  • C:\Users\Admin\AppData\Local\Temp\F868.exe
    C:\Users\Admin\AppData\Local\Temp\F868.exe
    1⤵
    • Executes dropped EXE
    PID:664
  • C:\Users\Admin\AppData\Local\Temp\FF3C.exe
    C:\Users\Admin\AppData\Local\Temp\FF3C.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\FF3C.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2228
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:2280
  • C:\Users\Admin\AppData\Local\Temp\44C.exe
    C:\Users\Admin\AppData\Local\Temp\44C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:268
    • 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:2428
    • 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:2452
    • C:\Users\Admin\AppData\Local\Temp\fbf.exe
      "C:\Users\Admin\AppData\Local\Temp\fbf.exe"
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of SetWindowsHookEx
      PID:2484
  • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
    "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe"
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2056
    • C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe
      "C:\Program Files (x86)\Microsoft Ouigga\Uuuocai.exe" Win7
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:2108

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/268-130-0x0000000000060000-0x0000000000061000-memory.dmp

    Filesize

    4KB

  • memory/652-116-0x0000000005570000-0x0000000005571000-memory.dmp

    Filesize

    4KB

  • memory/652-114-0x00000000000D0000-0x00000000000D1000-memory.dmp

    Filesize

    4KB

  • memory/664-125-0x0000000000500000-0x0000000000590000-memory.dmp

    Filesize

    576KB

  • memory/664-126-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/784-63-0x00000000003A0000-0x00000000003A9000-memory.dmp

    Filesize

    36KB

  • memory/1000-62-0x0000000075211000-0x0000000075213000-memory.dmp

    Filesize

    8KB

  • memory/1000-60-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1180-91-0x0000000003CE0000-0x0000000003CF6000-memory.dmp

    Filesize

    88KB

  • memory/1180-140-0x0000000003E60000-0x0000000003E70000-memory.dmp

    Filesize

    64KB

  • memory/1180-64-0x0000000004E70000-0x0000000004E86000-memory.dmp

    Filesize

    88KB

  • memory/1180-172-0x000007FF42470000-0x000007FF4247A000-memory.dmp

    Filesize

    40KB

  • memory/1180-171-0x000007FEF62C0000-0x000007FEF6403000-memory.dmp

    Filesize

    1.3MB

  • memory/1232-109-0x0000000000530000-0x0000000000531000-memory.dmp

    Filesize

    4KB

  • memory/1232-100-0x00000000013E0000-0x00000000013E1000-memory.dmp

    Filesize

    4KB

  • memory/1248-104-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/1248-108-0x0000000000870000-0x0000000001003000-memory.dmp

    Filesize

    7.6MB

  • memory/1248-107-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/1248-106-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/1248-105-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/1248-103-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/1248-102-0x00000000001F0000-0x00000000001F1000-memory.dmp

    Filesize

    4KB

  • memory/1532-77-0x0000000000930000-0x0000000000931000-memory.dmp

    Filesize

    4KB

  • memory/1532-84-0x0000000005080000-0x0000000005081000-memory.dmp

    Filesize

    4KB

  • memory/1684-89-0x0000000000030000-0x0000000000031000-memory.dmp

    Filesize

    4KB

  • memory/1684-137-0x000000001AE26000-0x000000001AE45000-memory.dmp

    Filesize

    124KB

  • memory/1684-90-0x000000001AE20000-0x000000001AE22000-memory.dmp

    Filesize

    8KB

  • memory/1684-92-0x0000000001D70000-0x0000000001D8E000-memory.dmp

    Filesize

    120KB

  • memory/1932-85-0x00000000012E0000-0x00000000012E1000-memory.dmp

    Filesize

    4KB

  • memory/1932-82-0x00000000013A0000-0x00000000013A1000-memory.dmp

    Filesize

    4KB

  • memory/1936-123-0x0000000000300000-0x000000000032D000-memory.dmp

    Filesize

    180KB

  • memory/1936-124-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/2428-152-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/2428-153-0x0000000002351000-0x0000000002352000-memory.dmp

    Filesize

    4KB

  • memory/2428-157-0x0000000000610000-0x000000000062E000-memory.dmp

    Filesize

    120KB

  • memory/2428-150-0x0000000002353000-0x0000000002354000-memory.dmp

    Filesize

    4KB

  • memory/2428-161-0x0000000002354000-0x0000000002356000-memory.dmp

    Filesize

    8KB

  • memory/2428-162-0x0000000002352000-0x0000000002353000-memory.dmp

    Filesize

    4KB

  • memory/2428-149-0x0000000000230000-0x0000000000260000-memory.dmp

    Filesize

    192KB

  • memory/2428-148-0x00000000003E0000-0x00000000003FF000-memory.dmp

    Filesize

    124KB

  • memory/2452-156-0x0000000002080000-0x00000000020A2000-memory.dmp

    Filesize

    136KB

  • memory/2452-155-0x0000000004931000-0x0000000004932000-memory.dmp

    Filesize

    4KB

  • memory/2452-163-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/2452-160-0x0000000004934000-0x0000000004936000-memory.dmp

    Filesize

    8KB

  • memory/2452-159-0x0000000004933000-0x0000000004934000-memory.dmp

    Filesize

    4KB

  • memory/2452-158-0x0000000004932000-0x0000000004933000-memory.dmp

    Filesize

    4KB

  • memory/2452-154-0x0000000002000000-0x0000000002023000-memory.dmp

    Filesize

    140KB

  • memory/2452-151-0x0000000000270000-0x00000000002A7000-memory.dmp

    Filesize

    220KB

  • memory/2484-166-0x0000000000300000-0x00000000003BC000-memory.dmp

    Filesize

    752KB

  • memory/2484-167-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2484-169-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB