Analysis

  • max time kernel
    151s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-09-2021 02:29

General

  • Target

    b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753.exe

  • Size

    271KB

  • MD5

    b1ddd2784abe06ff0bbcf22d723dab13

  • SHA1

    352aeaa461d035c7419606c4697d05a954180595

  • SHA256

    b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753

  • SHA512

    6f95de1fdd5860da2d47e89eb44acf33122361b00cc442cbce3cc6ffde4e53e3db7dfc189ef562d81673872b26231bf5e5a4a6a4033690f06de914cea2eea618

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

paladin

C2

188.124.36.242:25802

Extracted

Family

vidar

Version

40.9

Botnet

828

C2

https://stacenko668.tumblr.com/

Attributes
  • profile_id

    828

Signatures

  • 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.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

  • Vidar Stealer 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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.

  • 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 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 2 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753.exe
    "C:\Users\Admin\AppData\Local\Temp\b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1832
  • C:\Users\Admin\AppData\Local\Temp\9F0A.exe
    C:\Users\Admin\AppData\Local\Temp\9F0A.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1016
  • C:\Users\Admin\AppData\Local\Temp\C909.exe
    C:\Users\Admin\AppData\Local\Temp\C909.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im C909.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C909.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:740
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im C909.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3712
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:1288
  • C:\Users\Admin\AppData\Roaming\swvhtge
    C:\Users\Admin\AppData\Roaming\swvhtge
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3872

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\freebl3.dll
    MD5

    ef2834ac4ee7d6724f255beaf527e635

    SHA1

    5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

    SHA256

    a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

    SHA512

    c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

  • C:\ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\msvcp140.dll
    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • C:\ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\ProgramData\softokn3.dll
    MD5

    a2ee53de9167bf0d6c019303b7ca84e5

    SHA1

    2a3c737fa1157e8483815e98b666408a18c0db42

    SHA256

    43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

    SHA512

    45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

  • C:\ProgramData\vcruntime140.dll
    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

  • C:\Users\Admin\AppData\Local\Temp\9F0A.exe
    MD5

    dbc38c6ba4a61f7e788e760d69774b55

    SHA1

    d937df3f31f4ca19c2366a7cef39f111a43871fc

    SHA256

    3a13b94451fd9df564e071427f9561a8bb679c2e5794c1eee8cb3707f2da9d29

    SHA512

    f732dd0302288b3091cc6ea0f64791d3248f1cc4f1cad8c8c5b1497be6abe73808f875d39bf05ae0f53b744b73123a3750f035c191c2d34a01992658142957a3

  • C:\Users\Admin\AppData\Local\Temp\9F0A.exe
    MD5

    dbc38c6ba4a61f7e788e760d69774b55

    SHA1

    d937df3f31f4ca19c2366a7cef39f111a43871fc

    SHA256

    3a13b94451fd9df564e071427f9561a8bb679c2e5794c1eee8cb3707f2da9d29

    SHA512

    f732dd0302288b3091cc6ea0f64791d3248f1cc4f1cad8c8c5b1497be6abe73808f875d39bf05ae0f53b744b73123a3750f035c191c2d34a01992658142957a3

  • C:\Users\Admin\AppData\Local\Temp\C909.exe
    MD5

    e4f34e1301156e431247cad090ed5ad5

    SHA1

    5ab0ca1cd35fff9aaa910c535f2a7212acdf3d98

    SHA256

    e51ca4a3c26a349f7d7779e6ac51d6d7520f626dbf92f472c8d17c42dfea5e99

    SHA512

    2b68b82e1b5f95927d1680fe5094cdd0b06a0127e3c0e305c3c47adb729612d96b058fb544a7b25ed2c5242792d292e38330e5497124318860cd47e4fafcd890

  • C:\Users\Admin\AppData\Local\Temp\C909.exe
    MD5

    e4f34e1301156e431247cad090ed5ad5

    SHA1

    5ab0ca1cd35fff9aaa910c535f2a7212acdf3d98

    SHA256

    e51ca4a3c26a349f7d7779e6ac51d6d7520f626dbf92f472c8d17c42dfea5e99

    SHA512

    2b68b82e1b5f95927d1680fe5094cdd0b06a0127e3c0e305c3c47adb729612d96b058fb544a7b25ed2c5242792d292e38330e5497124318860cd47e4fafcd890

  • C:\Users\Admin\AppData\Roaming\swvhtge
    MD5

    b1ddd2784abe06ff0bbcf22d723dab13

    SHA1

    352aeaa461d035c7419606c4697d05a954180595

    SHA256

    b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753

    SHA512

    6f95de1fdd5860da2d47e89eb44acf33122361b00cc442cbce3cc6ffde4e53e3db7dfc189ef562d81673872b26231bf5e5a4a6a4033690f06de914cea2eea618

  • C:\Users\Admin\AppData\Roaming\swvhtge
    MD5

    b1ddd2784abe06ff0bbcf22d723dab13

    SHA1

    352aeaa461d035c7419606c4697d05a954180595

    SHA256

    b5c199b3fb16810ba6fa5a3f768bc445610a38a46d1f3ee1b334007e33ab6753

    SHA512

    6f95de1fdd5860da2d47e89eb44acf33122361b00cc442cbce3cc6ffde4e53e3db7dfc189ef562d81673872b26231bf5e5a4a6a4033690f06de914cea2eea618

  • \ProgramData\mozglue.dll
    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/408-134-0x0000000000000000-mapping.dmp
  • memory/408-139-0x0000000000400000-0x00000000004D7000-memory.dmp
    Filesize

    860KB

  • memory/408-138-0x0000000000900000-0x00000000009D4000-memory.dmp
    Filesize

    848KB

  • memory/740-151-0x0000000000000000-mapping.dmp
  • memory/1016-127-0x0000000004C62000-0x0000000004C63000-memory.dmp
    Filesize

    4KB

  • memory/1016-143-0x0000000007690000-0x0000000007691000-memory.dmp
    Filesize

    4KB

  • memory/1016-132-0x0000000004C64000-0x0000000004C66000-memory.dmp
    Filesize

    8KB

  • memory/1016-126-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/1016-125-0x0000000005170000-0x0000000005171000-memory.dmp
    Filesize

    4KB

  • memory/1016-137-0x0000000006AA0000-0x0000000006AA1000-memory.dmp
    Filesize

    4KB

  • memory/1016-131-0x0000000004BD0000-0x0000000004BD1000-memory.dmp
    Filesize

    4KB

  • memory/1016-130-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

  • memory/1016-140-0x0000000006C70000-0x0000000006C71000-memory.dmp
    Filesize

    4KB

  • memory/1016-141-0x0000000007290000-0x0000000007291000-memory.dmp
    Filesize

    4KB

  • memory/1016-142-0x00000000075E0000-0x00000000075E1000-memory.dmp
    Filesize

    4KB

  • memory/1016-122-0x0000000002550000-0x0000000002571000-memory.dmp
    Filesize

    132KB

  • memory/1016-144-0x0000000007660000-0x0000000007661000-memory.dmp
    Filesize

    4KB

  • memory/1016-145-0x0000000007BE0000-0x0000000007BE1000-memory.dmp
    Filesize

    4KB

  • memory/1016-129-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
    Filesize

    4KB

  • memory/1016-133-0x0000000005890000-0x0000000005891000-memory.dmp
    Filesize

    4KB

  • memory/1016-124-0x0000000002520000-0x000000000253F000-memory.dmp
    Filesize

    124KB

  • memory/1016-123-0x0000000004C70000-0x0000000004C71000-memory.dmp
    Filesize

    4KB

  • memory/1016-117-0x0000000000000000-mapping.dmp
  • memory/1016-128-0x0000000004C63000-0x0000000004C64000-memory.dmp
    Filesize

    4KB

  • memory/1016-121-0x0000000000400000-0x0000000000468000-memory.dmp
    Filesize

    416KB

  • memory/1016-120-0x00000000007E0000-0x0000000000812000-memory.dmp
    Filesize

    200KB

  • memory/1288-153-0x0000000000000000-mapping.dmp
  • memory/1832-115-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB

  • memory/1832-114-0x0000000000030000-0x0000000000039000-memory.dmp
    Filesize

    36KB

  • memory/3052-154-0x00000000031E0000-0x00000000031F5000-memory.dmp
    Filesize

    84KB

  • memory/3052-116-0x0000000001100000-0x0000000001115000-memory.dmp
    Filesize

    84KB

  • memory/3712-152-0x0000000000000000-mapping.dmp
  • memory/3872-150-0x0000000000400000-0x0000000000454000-memory.dmp
    Filesize

    336KB