Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    02-12-2021 23:16

General

  • Target

    3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18.exe

  • Size

    255KB

  • MD5

    c9b71ed3dac71228438d2ab3b6554867

  • SHA1

    505154cad1036f1d4dc87835daf1dca9c1cac2e0

  • SHA256

    3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18

  • SHA512

    b3409bfda5257a3b7eedc025601684ea6ca37c960d679867206fdad8a89fdffd1514e160567f6b80d67fae9ecfb8d6e3a4001cbd321fdda1137fac924b84f998

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

rc4.i32
rc4.i32

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Extracted

Family

redline

C2

92.255.76.197:38637

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • RedLine

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

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

  • Arkei Stealer Payload 2 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 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 6 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 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 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18.exe
    "C:\Users\Admin\AppData\Local\Temp\3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Local\Temp\3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18.exe
      "C:\Users\Admin\AppData\Local\Temp\3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3248
  • C:\Users\Admin\AppData\Local\Temp\1CDB.exe
    C:\Users\Admin\AppData\Local\Temp\1CDB.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\1CDB.exe
      C:\Users\Admin\AppData\Local\Temp\1CDB.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:752
  • C:\Users\Admin\AppData\Local\Temp\21CD.exe
    C:\Users\Admin\AppData\Local\Temp\21CD.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3648
    • C:\Users\Admin\AppData\Local\Temp\21CD.exe
      C:\Users\Admin\AppData\Local\Temp\21CD.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1088
  • C:\Users\Admin\AppData\Local\Temp\27F8.exe
    C:\Users\Admin\AppData\Local\Temp\27F8.exe
    1⤵
    • Executes dropped EXE
    PID:1788
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1788 -s 476
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
  • C:\Users\Admin\AppData\Local\Temp\2C10.exe
    C:\Users\Admin\AppData\Local\Temp\2C10.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:348
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2C10.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:888
  • C:\Users\Admin\AppData\Local\Temp\397F.exe
    C:\Users\Admin\AppData\Local\Temp\397F.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    PID:3196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\21CD.exe.log
    MD5

    41fbed686f5700fc29aaccf83e8ba7fd

    SHA1

    5271bc29538f11e42a3b600c8dc727186e912456

    SHA256

    df4e9d012687cdabd15e86bf37be15d6c822e1f50dde530a02468f0006586437

    SHA512

    234b2235c1ced25810a4121c5eabcbf9f269e82c126a1adc363ee34478173f8b462e90eb53f5f11533641663350b90ec1e2360fd805b10c041fab12f4da7a034

  • C:\Users\Admin\AppData\Local\Temp\1CDB.exe
    MD5

    c9b71ed3dac71228438d2ab3b6554867

    SHA1

    505154cad1036f1d4dc87835daf1dca9c1cac2e0

    SHA256

    3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18

    SHA512

    b3409bfda5257a3b7eedc025601684ea6ca37c960d679867206fdad8a89fdffd1514e160567f6b80d67fae9ecfb8d6e3a4001cbd321fdda1137fac924b84f998

  • C:\Users\Admin\AppData\Local\Temp\1CDB.exe
    MD5

    c9b71ed3dac71228438d2ab3b6554867

    SHA1

    505154cad1036f1d4dc87835daf1dca9c1cac2e0

    SHA256

    3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18

    SHA512

    b3409bfda5257a3b7eedc025601684ea6ca37c960d679867206fdad8a89fdffd1514e160567f6b80d67fae9ecfb8d6e3a4001cbd321fdda1137fac924b84f998

  • C:\Users\Admin\AppData\Local\Temp\1CDB.exe
    MD5

    c9b71ed3dac71228438d2ab3b6554867

    SHA1

    505154cad1036f1d4dc87835daf1dca9c1cac2e0

    SHA256

    3bc6fe5fcb47c7fe9bb740286c76ae1b81326799a468821d0f9e94a6913d8b18

    SHA512

    b3409bfda5257a3b7eedc025601684ea6ca37c960d679867206fdad8a89fdffd1514e160567f6b80d67fae9ecfb8d6e3a4001cbd321fdda1137fac924b84f998

  • C:\Users\Admin\AppData\Local\Temp\21CD.exe
    MD5

    5115e5dab211559a85cd0154e8100f53

    SHA1

    347800b72ac53ec6e2c87e433763b20282a2c06d

    SHA256

    ef156fb3a203fe197d89d63e2ea7805a1b9af505dfff5a58532dbfe34e7aabaa

    SHA512

    d03e58376be1e299a6da57a28ed5db176999baded713aa54ddb59cf8c82b97e8c0b028ce07bddb6989c7c77e518e151e112dde2f1d5244ac2572e4371fa68c12

  • C:\Users\Admin\AppData\Local\Temp\21CD.exe
    MD5

    5115e5dab211559a85cd0154e8100f53

    SHA1

    347800b72ac53ec6e2c87e433763b20282a2c06d

    SHA256

    ef156fb3a203fe197d89d63e2ea7805a1b9af505dfff5a58532dbfe34e7aabaa

    SHA512

    d03e58376be1e299a6da57a28ed5db176999baded713aa54ddb59cf8c82b97e8c0b028ce07bddb6989c7c77e518e151e112dde2f1d5244ac2572e4371fa68c12

  • C:\Users\Admin\AppData\Local\Temp\21CD.exe
    MD5

    5115e5dab211559a85cd0154e8100f53

    SHA1

    347800b72ac53ec6e2c87e433763b20282a2c06d

    SHA256

    ef156fb3a203fe197d89d63e2ea7805a1b9af505dfff5a58532dbfe34e7aabaa

    SHA512

    d03e58376be1e299a6da57a28ed5db176999baded713aa54ddb59cf8c82b97e8c0b028ce07bddb6989c7c77e518e151e112dde2f1d5244ac2572e4371fa68c12

  • C:\Users\Admin\AppData\Local\Temp\27F8.exe
    MD5

    df13fac0d8b182e4d8b9a02ba87a9571

    SHA1

    b2187debc6fde96e08d5014ce4f1af5cf568bce5

    SHA256

    af64f5b2b6c4cc63b0ca4bb48f369eba1629886d85e289a469a5c9612c4a5ee3

    SHA512

    bc842a80509bda8afff6e12f5b5c64ccf7f1d7360f99f63cebbc1f21936a15487ec16bde3c2acff22c49ebcedf5c426621d6f69503f4968aacc8e75611e3a816

  • C:\Users\Admin\AppData\Local\Temp\27F8.exe
    MD5

    df13fac0d8b182e4d8b9a02ba87a9571

    SHA1

    b2187debc6fde96e08d5014ce4f1af5cf568bce5

    SHA256

    af64f5b2b6c4cc63b0ca4bb48f369eba1629886d85e289a469a5c9612c4a5ee3

    SHA512

    bc842a80509bda8afff6e12f5b5c64ccf7f1d7360f99f63cebbc1f21936a15487ec16bde3c2acff22c49ebcedf5c426621d6f69503f4968aacc8e75611e3a816

  • C:\Users\Admin\AppData\Local\Temp\2C10.exe
    MD5

    9653b2fc8da9db45ee5f91536fc9549b

    SHA1

    c8e34dca8c763af13c25cb7b834d5504d1084de5

    SHA256

    9127bb34da75bff93d1f0796cc880dc14a373f0db55494220b96e929a6d13a7d

    SHA512

    a44d2df5217b9d18c3cabf3e2255b5c0fa11adcbf51f7da34e99aa95cbad252063ebd047b260d8f660cfbddb3be745e9013e61d7d2e74e339551c11aa82eccea

  • C:\Users\Admin\AppData\Local\Temp\2C10.exe
    MD5

    9653b2fc8da9db45ee5f91536fc9549b

    SHA1

    c8e34dca8c763af13c25cb7b834d5504d1084de5

    SHA256

    9127bb34da75bff93d1f0796cc880dc14a373f0db55494220b96e929a6d13a7d

    SHA512

    a44d2df5217b9d18c3cabf3e2255b5c0fa11adcbf51f7da34e99aa95cbad252063ebd047b260d8f660cfbddb3be745e9013e61d7d2e74e339551c11aa82eccea

  • C:\Users\Admin\AppData\Local\Temp\397F.exe
    MD5

    ca16ca4aa9cf9777274447c9f4ba222e

    SHA1

    1025ed93e5f44d51b96f1a788764cc4487ee477e

    SHA256

    0016755526279c5c404b670ecb2d81af46066d879c389924a6574ab9864b5c04

    SHA512

    72d8d2a729b8ce2940235d3a317ee3eb0eb8d1411e847d6d11e36484f520bb88b3cabd03716b3c2988b0a053426be14aace154f13d306883788f952cd03cf712

  • C:\Users\Admin\AppData\Local\Temp\397F.exe
    MD5

    ca16ca4aa9cf9777274447c9f4ba222e

    SHA1

    1025ed93e5f44d51b96f1a788764cc4487ee477e

    SHA256

    0016755526279c5c404b670ecb2d81af46066d879c389924a6574ab9864b5c04

    SHA512

    72d8d2a729b8ce2940235d3a317ee3eb0eb8d1411e847d6d11e36484f520bb88b3cabd03716b3c2988b0a053426be14aace154f13d306883788f952cd03cf712

  • \ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • \ProgramData\sqlite3.dll
    MD5

    e477a96c8f2b18d6b5c27bde49c990bf

    SHA1

    e980c9bf41330d1e5bd04556db4646a0210f7409

    SHA256

    16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

    SHA512

    335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

  • memory/348-142-0x0000000000000000-mapping.dmp
  • memory/348-146-0x0000000000400000-0x0000000002B85000-memory.dmp
    Filesize

    39.5MB

  • memory/348-147-0x0000000002B90000-0x0000000002C3E000-memory.dmp
    Filesize

    696KB

  • memory/348-148-0x00000000047A0000-0x00000000047C1000-memory.dmp
    Filesize

    132KB

  • memory/752-124-0x0000000000402F47-mapping.dmp
  • memory/888-180-0x0000000000000000-mapping.dmp
  • memory/1088-156-0x00000000051C0000-0x00000000051C1000-memory.dmp
    Filesize

    4KB

  • memory/1088-173-0x0000000006170000-0x0000000006171000-memory.dmp
    Filesize

    4KB

  • memory/1088-175-0x0000000006C70000-0x0000000006C71000-memory.dmp
    Filesize

    4KB

  • memory/1088-176-0x0000000007370000-0x0000000007371000-memory.dmp
    Filesize

    4KB

  • memory/1088-171-0x0000000005580000-0x0000000005581000-memory.dmp
    Filesize

    4KB

  • memory/1088-166-0x0000000005400000-0x0000000005401000-memory.dmp
    Filesize

    4KB

  • memory/1088-155-0x0000000005790000-0x0000000005791000-memory.dmp
    Filesize

    4KB

  • memory/1088-151-0x0000000000418EE6-mapping.dmp
  • memory/1088-160-0x00000000052F0000-0x00000000052F1000-memory.dmp
    Filesize

    4KB

  • memory/1088-161-0x0000000005180000-0x0000000005786000-memory.dmp
    Filesize

    6.0MB

  • memory/1088-163-0x0000000005220000-0x0000000005221000-memory.dmp
    Filesize

    4KB

  • memory/1088-150-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1788-140-0x0000000002BC0000-0x0000000002BC9000-memory.dmp
    Filesize

    36KB

  • memory/1788-145-0x0000000000400000-0x0000000002B64000-memory.dmp
    Filesize

    39.4MB

  • memory/1788-141-0x0000000002BE0000-0x0000000002BE9000-memory.dmp
    Filesize

    36KB

  • memory/1788-134-0x0000000000000000-mapping.dmp
  • memory/2084-127-0x0000000002B80000-0x0000000002CCA000-memory.dmp
    Filesize

    1.3MB

  • memory/2084-126-0x0000000002B80000-0x0000000002CCA000-memory.dmp
    Filesize

    1.3MB

  • memory/2084-120-0x0000000000000000-mapping.dmp
  • memory/2744-118-0x00000000001F0000-0x00000000001F9000-memory.dmp
    Filesize

    36KB

  • memory/2744-117-0x00000000001D0000-0x00000000001D9000-memory.dmp
    Filesize

    36KB

  • memory/3004-149-0x00000000025E0000-0x00000000025F6000-memory.dmp
    Filesize

    88KB

  • memory/3004-119-0x0000000000650000-0x0000000000666000-memory.dmp
    Filesize

    88KB

  • memory/3196-164-0x0000000000F00000-0x00000000015E2000-memory.dmp
    Filesize

    6.9MB

  • memory/3196-167-0x0000000000F00000-0x00000000015E2000-memory.dmp
    Filesize

    6.9MB

  • memory/3196-168-0x0000000000F00000-0x00000000015E2000-memory.dmp
    Filesize

    6.9MB

  • memory/3196-162-0x0000000077280000-0x000000007740E000-memory.dmp
    Filesize

    1.6MB

  • memory/3196-157-0x0000000000000000-mapping.dmp
  • memory/3196-165-0x0000000000F00000-0x00000000015E2000-memory.dmp
    Filesize

    6.9MB

  • memory/3248-115-0x0000000000400000-0x0000000000409000-memory.dmp
    Filesize

    36KB

  • memory/3248-116-0x0000000000402F47-mapping.dmp
  • memory/3456-179-0x0000000000000000-mapping.dmp
  • memory/3648-139-0x0000000005200000-0x0000000005201000-memory.dmp
    Filesize

    4KB

  • memory/3648-133-0x0000000005090000-0x0000000005091000-memory.dmp
    Filesize

    4KB

  • memory/3648-131-0x0000000000810000-0x0000000000811000-memory.dmp
    Filesize

    4KB

  • memory/3648-137-0x0000000002A90000-0x0000000002A91000-memory.dmp
    Filesize

    4KB

  • memory/3648-128-0x0000000000000000-mapping.dmp
  • memory/3648-138-0x0000000005710000-0x0000000005711000-memory.dmp
    Filesize

    4KB