Resubmissions

26-09-2021 14:45

210926-r4qb2aehcm 10

26-09-2021 14:41

210926-r2wq2afaa9 10

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    26-09-2021 14:41

General

  • Target

    c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe

  • Size

    139KB

  • MD5

    3e201fc20a90e669990e2994d2114b83

  • SHA1

    24bfc9636c793e7ceb309b08e319b2d925a080bd

  • SHA256

    c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24

  • SHA512

    4dae9203c1003ca32600d153d7a9f08fa3c50d7c665ee81d4d7608d8f47354e48493d4bb39af2a3259c7882ca0ba38f4db52033b0df3ddf4321cb7118b228591

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

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 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Arkei Stealer Payload 1 IoCs
  • Chinese Botnet Payload 1 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 3 IoCs
  • Blocklisted process makes network request 1 IoCs
  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 5 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 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 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.

  • 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe
    "C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe
      "C:\Users\Admin\AppData\Local\Temp\c8c2f5565b13fbb60b89d11b7e71a03666c3afb2246b87e633cac8023bec0b24.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2264
  • C:\Users\Admin\AppData\Local\Temp\F61E.exe
    C:\Users\Admin\AppData\Local\Temp\F61E.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:2624
  • C:\Users\Admin\AppData\Local\Temp\FB8D.exe
    C:\Users\Admin\AppData\Local\Temp\FB8D.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\FB8D.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3884
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1688
  • C:\Users\Admin\AppData\Local\Temp\1A9.exe
    C:\Users\Admin\AppData\Local\Temp\1A9.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:4048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 1360
      2⤵
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:3952
  • C:\Users\Admin\AppData\Local\Temp\9F7.exe
    C:\Users\Admin\AppData\Local\Temp\9F7.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1268
    • 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
      PID:596
    • 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
      PID:3296
    • 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:2884
  • C:\Users\Admin\AppData\Local\Temp\1CC4.exe
    C:\Users\Admin\AppData\Local\Temp\1CC4.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\EM).exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\EM).exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2256
      • C:\Users\Admin\AppData\Roaming\123.exe
        "C:\Users\Admin\AppData\Roaming\123.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Users\Admin\AppData\Local\Temp\RarSFX1\+.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX1\+.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4044
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Local\Temp\services64.exe"' & exit
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4060
            • C:\Windows\system32\schtasks.exe
              schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Local\Temp\services64.exe"'
              6⤵
              • Creates scheduled task(s)
              PID:3796
          • C:\Users\Admin\AppData\Local\Temp\services64.exe
            "C:\Users\Admin\AppData\Local\Temp\services64.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:360
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Local\Temp\services64.exe"' & exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:1528
              • C:\Windows\system32\schtasks.exe
                schtasks /create /f /sc onlogon /rl highest /tn "services64" /tr '"C:\Users\Admin\AppData\Local\Temp\services64.exe"'
                7⤵
                • Creates scheduled task(s)
                PID:1684
            • C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe
              "C:\Users\Admin\AppData\Roaming\Microsoft\Libs\sihost64.exe"
              6⤵
              • Executes dropped EXE
              PID:400
            • C:\Windows\System32\cmd.exe
              C:\Windows/System32\cmd.exe --cinit-find-x -B --algo="rx/0" --asm=auto --cpu-memory-pool=1 --randomx-mode=auto --randomx-no-rdmsr --cuda-bfactor-hint=12 --cuda-bsleep-hint=100 --url=pool.hashvault.pro:80 --user=82uPE2EaN5eBju6o4qpVH8MDdsJgrBhtAfQxTYSyAiSjbeKTkPMmhVWJV411cAVJj8E9dvEPGQ3N9FR9c94Zwci8DQmucFL --pass=RIG-1 --cpu-max-threads-hint=30 --cinit-stealth-targets="+iU/trnPCTLD3p+slbva5u4EYOS6bvIPemCHGQx2WRUcnFdomWh6dhl5H5KbQCjp6yCYlsFu5LR1mi7nQAy56B+5doUwurAPvCael2sR/N4=" --cinit-idle-wait=5 --cinit-idle-cpu=60 --tls --cinit-stealth
              6⤵
              • Blocklisted process makes network request
              PID:2608
      • C:\Users\Admin\AppData\Roaming\yt.exe
        "C:\Users\Admin\AppData\Roaming\yt.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2800
        • C:\Users\Admin\AppData\Local\Temp\RarSFX2\Re.exe
          "C:\Users\Admin\AppData\Local\Temp\RarSFX2\Re.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:816
          • C:\Users\Admin\AppData\Local\Temp\RarSFX3\._protected.exe
            "C:\Users\Admin\AppData\Local\Temp\RarSFX3\._protected.exe"
            5⤵
            • Executes dropped EXE
            • Checks BIOS information in registry
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of AdjustPrivilegeToken
            PID:1208

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/360-232-0x0000000000B10000-0x0000000000B12000-memory.dmp

    Filesize

    8KB

  • memory/400-236-0x000000001C3F0000-0x000000001C3F2000-memory.dmp

    Filesize

    8KB

  • memory/400-229-0x0000000000670000-0x0000000000671000-memory.dmp

    Filesize

    4KB

  • memory/596-246-0x0000000000400000-0x00000000004C5000-memory.dmp

    Filesize

    788KB

  • memory/596-244-0x00000000004D0000-0x000000000061A000-memory.dmp

    Filesize

    1.3MB

  • memory/596-257-0x0000000004C32000-0x0000000004C33000-memory.dmp

    Filesize

    4KB

  • memory/596-258-0x0000000004C33000-0x0000000004C34000-memory.dmp

    Filesize

    4KB

  • memory/596-226-0x00000000022F0000-0x000000000230E000-memory.dmp

    Filesize

    120KB

  • memory/596-253-0x0000000004C30000-0x0000000004C31000-memory.dmp

    Filesize

    4KB

  • memory/596-250-0x0000000004C34000-0x0000000004C36000-memory.dmp

    Filesize

    8KB

  • memory/596-221-0x00000000021A0000-0x00000000021BF000-memory.dmp

    Filesize

    124KB

  • memory/1208-187-0x00000000009A0000-0x00000000009A1000-memory.dmp

    Filesize

    4KB

  • memory/1208-185-0x0000000077A30000-0x0000000077BBE000-memory.dmp

    Filesize

    1.6MB

  • memory/1208-197-0x0000000005BD0000-0x0000000005BD1000-memory.dmp

    Filesize

    4KB

  • memory/1268-145-0x00000000009A0000-0x00000000009A1000-memory.dmp

    Filesize

    4KB

  • memory/2168-117-0x0000000000610000-0x0000000000619000-memory.dmp

    Filesize

    36KB

  • memory/2256-163-0x0000000000400000-0x0000000000BF2000-memory.dmp

    Filesize

    7.9MB

  • memory/2264-115-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2580-147-0x0000000000780000-0x0000000000810000-memory.dmp

    Filesize

    576KB

  • memory/2580-148-0x0000000000400000-0x00000000004F1000-memory.dmp

    Filesize

    964KB

  • memory/2608-264-0x0000027982AC0000-0x0000027982AE0000-memory.dmp

    Filesize

    128KB

  • memory/2608-262-0x0000000140000000-0x0000000140763000-memory.dmp

    Filesize

    7.4MB

  • memory/2608-265-0x0000000140000000-0x0000000140763000-memory.dmp

    Filesize

    7.4MB

  • memory/2608-276-0x0000027982B00000-0x0000027982B20000-memory.dmp

    Filesize

    128KB

  • memory/2608-288-0x0000027982B20000-0x0000027982B40000-memory.dmp

    Filesize

    128KB

  • memory/2624-150-0x0000000007580000-0x0000000007581000-memory.dmp

    Filesize

    4KB

  • memory/2624-193-0x0000000007D30000-0x0000000007D31000-memory.dmp

    Filesize

    4KB

  • memory/2624-151-0x0000000006E00000-0x0000000006E01000-memory.dmp

    Filesize

    4KB

  • memory/2624-153-0x0000000007FB0000-0x0000000007FB1000-memory.dmp

    Filesize

    4KB

  • memory/2624-154-0x0000000007100000-0x0000000007101000-memory.dmp

    Filesize

    4KB

  • memory/2624-149-0x0000000006E80000-0x0000000006E81000-memory.dmp

    Filesize

    4KB

  • memory/2624-128-0x0000000005E70000-0x0000000005E71000-memory.dmp

    Filesize

    4KB

  • memory/2624-155-0x00000000074A0000-0x00000000074A1000-memory.dmp

    Filesize

    4KB

  • memory/2624-129-0x00000000013B0000-0x00000000013B1000-memory.dmp

    Filesize

    4KB

  • memory/2624-131-0x0000000005740000-0x0000000005741000-memory.dmp

    Filesize

    4KB

  • memory/2624-130-0x0000000005860000-0x0000000005861000-memory.dmp

    Filesize

    4KB

  • memory/2624-152-0x0000000007120000-0x0000000007121000-memory.dmp

    Filesize

    4KB

  • memory/2624-122-0x0000000077A30000-0x0000000077BBE000-memory.dmp

    Filesize

    1.6MB

  • memory/2624-123-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/2624-133-0x0000000005850000-0x0000000005851000-memory.dmp

    Filesize

    4KB

  • memory/2624-132-0x0000000005780000-0x0000000005781000-memory.dmp

    Filesize

    4KB

  • memory/2884-260-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB

  • memory/2884-234-0x00000000020D0000-0x000000000218C000-memory.dmp

    Filesize

    752KB

  • memory/2884-242-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/3068-118-0x0000000000CC0000-0x0000000000CD6000-memory.dmp

    Filesize

    88KB

  • memory/3296-248-0x0000000002100000-0x0000000002137000-memory.dmp

    Filesize

    220KB

  • memory/3296-223-0x0000000004A30000-0x0000000004A52000-memory.dmp

    Filesize

    136KB

  • memory/3296-252-0x0000000000400000-0x00000000004CB000-memory.dmp

    Filesize

    812KB

  • memory/3296-219-0x0000000002540000-0x0000000002563000-memory.dmp

    Filesize

    140KB

  • memory/3296-239-0x0000000004B14000-0x0000000004B16000-memory.dmp

    Filesize

    8KB

  • memory/3296-254-0x0000000004B10000-0x0000000004B11000-memory.dmp

    Filesize

    4KB

  • memory/3296-255-0x0000000004B12000-0x0000000004B13000-memory.dmp

    Filesize

    4KB

  • memory/3296-256-0x0000000004B13000-0x0000000004B14000-memory.dmp

    Filesize

    4KB

  • memory/4044-199-0x0000000001070000-0x0000000001079000-memory.dmp

    Filesize

    36KB

  • memory/4044-200-0x0000000002E10000-0x0000000002E11000-memory.dmp

    Filesize

    4KB

  • memory/4044-198-0x00000000011C0000-0x00000000011C2000-memory.dmp

    Filesize

    8KB

  • memory/4044-177-0x0000000000770000-0x0000000000771000-memory.dmp

    Filesize

    4KB

  • memory/4048-138-0x0000000000400000-0x000000000044D000-memory.dmp

    Filesize

    308KB

  • memory/4048-137-0x00000000021A0000-0x00000000021CD000-memory.dmp

    Filesize

    180KB