Analysis

  • max time kernel
    133s
  • max time network
    253s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-09-2024 22:39

General

  • Target

    a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe

  • Size

    283KB

  • MD5

    3817c947e0d26bde329f7481b6d76709

  • SHA1

    8f1003d9bd8194b486634df3bbe6dbd64b923e9f

  • SHA256

    a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75

  • SHA512

    79cff23f8fad0c1ad2cfcda5f7ab1e4b618c4d49fb4a488cb986b1f708ebe94fb0751f9a6d99e4acebef4a70e4c101bb60db85455bdfbeaa66b5246672698017

  • SSDEEP

    6144:J4C2lKti9a/UIPZHrk6BcHvJ1rOjMmmqAZMzLswInEO:J4iwerk6qHrCMmbEyABEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 18 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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.

  • Suspicious use of SetThreadContext 3 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 38 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe
    "C:\Users\Admin\AppData\Local\Temp\a1d7a27d0db33680df06c7b7ac1a58ba17c18843af52782f57ec7f94bb023a75.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:500
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4116
      • C:\ProgramData\AFHDHCAAKE.exe
        "C:\ProgramData\AFHDHCAAKE.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3504
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2872
      • C:\ProgramData\BAKFCBFHJD.exe
        "C:\ProgramData\BAKFCBFHJD.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4172
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          PID:4328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BAAAKJDAAFBA" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4708
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\AFHDHCAAKE.exe

    Filesize

    355KB

    MD5

    731a25a9b1f2c31056f7bd75c71deac4

    SHA1

    ac95005a75add78f8226e553ff3bb32bcfeef1ea

    SHA256

    d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

    SHA512

    efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

  • C:\ProgramData\BAKFCBFHJD.exe

    Filesize

    293KB

    MD5

    6d1999f1096cee3f06507e0d896d7c4a

    SHA1

    947cde63e799d23622468caecd0172a4ce8e8c17

    SHA256

    6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

    SHA512

    eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

    Filesize

    2KB

    MD5

    4c4bf9e4d624f1045d8f73ed7f97dc3e

    SHA1

    1d78800f4a780fc6f75a778faeed2baaf84f2206

    SHA256

    6dcfee83067db655225002d6ee68c1948d82de8a4b488355fbdee6fce73638db

    SHA512

    4c950580ec4fb088382f066948964846bbee5d575eac1f70253e5adc3c09f071d398c1b6eb42fb2a00e017ba2a344ef6709c6f321a5b38db8bd39933989494bb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

    Filesize

    2KB

    MD5

    7ec05ad5ad4ea2f59d78a181b608dfb1

    SHA1

    95dfcb1ca8c7c6353bfc940c79f877d491158faa

    SHA256

    197a38efa533f9ff60b730cbc9b5fb604893e8dfb08a9ba85f0e5424779e3759

    SHA512

    da07b1ce6b278f20a93cfb83107be1a96bd134657be71f31b314e981ae9f85a8db50ae10458612bd460baca5e9402d5bce61b11ed648b191be42882273b8c00a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

    Filesize

    1KB

    MD5

    9ea353ed4fed6ed641da2a1a1e66cbf3

    SHA1

    42cf55d3608819795042c23df5f18fcd2b6b0c58

    SHA256

    5245794a9cb70971f00a51f56b8b5305d16629c4d0d0e95916371a20a6119485

    SHA512

    7476acf575e998c56bae27703d635c82a5cfd43f736b9618ec430168148f25d79c97ca344670298b51956ca0b3707d6499ef5865fe1b933acb948dddc822d05e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

    Filesize

    458B

    MD5

    a12a27fca95005696cddcdb7413e32af

    SHA1

    901a2b2619bd9e534ded29ed814f637a339fb4ee

    SHA256

    0897fd4dbc988665173217cf200d18ffb0e23cba19d094dcb216cff9fec690bc

    SHA512

    d759d038db1b76e2e45c98c3cd6c5d993d44051f2446b7cf1293366629ca59e3f90c57aab4d3e2d727c425117194d0b5dae11f861757b8546207bc0a3b85b12b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

    Filesize

    450B

    MD5

    c4a93dce3098c91b7d3f202d38e897dc

    SHA1

    43157f8551b848dfa56b8a7a1ca516e55c6731f4

    SHA256

    da87e638dee9860bed64d927e000ede8e9dd883bd1512ddb30c2331fdf878c17

    SHA512

    01d857473cd48df06b5ec739e64f09e39f150cd69e01071ae6c3e8b9ccd92b3b5a7cbc8ef7dc184223d20b9b7559167d74eebd6d051c4c9008c982090af6b65a

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

    Filesize

    458B

    MD5

    f2b5ab57c747b7c82c920f075955261e

    SHA1

    409ffc1cec63b07987e629a8b818161aadd42e62

    SHA256

    ee10d75ad7be1afaaa92a3e03dd9e129ae0cb21593796ced05580db61eb307d2

    SHA512

    c03fe2ade1a49a1cb8d2e60257f43e161cc2a8ae7d0f131852734529d493f56be16cb1d6e89dabd0c62b7576f1e16bba9b826fc91adadc8ae0ca5e0272468848

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\VURM844F.cookie

    Filesize

    101B

    MD5

    9333600f5c9a18a374e588052da343d0

    SHA1

    a43240394b030b6bdd0878e610e78e4d364976b2

    SHA256

    47403bbfb1da998f51de38a4aa1adf754fba7197a6ef56ee212b11b6d172dbba

    SHA512

    e8c1d4a3f59b3b78d55b99c4cfe3f3ab78fbd5b8d9f9c2fb3e3cc94a0a13770ec0461e21fa2f2b69669e75e7c2082111505f8810d366ffc838bfd8c8b6c07f37

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/500-53-0x0000000073AB0000-0x000000007419E000-memory.dmp

    Filesize

    6.9MB

  • memory/500-12-0x0000000073AB0000-0x000000007419E000-memory.dmp

    Filesize

    6.9MB

  • memory/500-1-0x0000000000A80000-0x0000000000ACA000-memory.dmp

    Filesize

    296KB

  • memory/500-2-0x00000000057B0000-0x0000000005CAE000-memory.dmp

    Filesize

    5.0MB

  • memory/500-0-0x0000000073ABE000-0x0000000073ABF000-memory.dmp

    Filesize

    4KB

  • memory/2872-101-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2872-104-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2872-98-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3504-96-0x0000000071A00000-0x00000000720EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3504-103-0x0000000071A00000-0x00000000720EE000-memory.dmp

    Filesize

    6.9MB

  • memory/3504-95-0x0000000000510000-0x000000000056A000-memory.dmp

    Filesize

    360KB

  • memory/3504-94-0x0000000071A0E000-0x0000000071A0F000-memory.dmp

    Filesize

    4KB

  • memory/3504-105-0x0000000071A00000-0x00000000720EE000-memory.dmp

    Filesize

    6.9MB

  • memory/4116-9-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-8-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-79-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-71-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-45-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-72-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-4-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-80-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-44-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-29-0x00000000202D0000-0x000000002052F000-memory.dmp

    Filesize

    2.4MB

  • memory/4116-28-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4116-27-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4172-113-0x0000000000480000-0x00000000004CA000-memory.dmp

    Filesize

    296KB

  • memory/4328-115-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-117-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-119-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-129-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-130-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-131-0x000000001FF20000-0x000000002017F000-memory.dmp

    Filesize

    2.4MB

  • memory/4328-141-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4328-142-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB