Analysis

  • max time kernel
    129s
  • max time network
    299s
  • platform
    windows10-1703_x64
  • resource
    win10-20240611-en
  • resource tags

    arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-09-2024 22:40

General

  • Target

    a6fc0eacb5308bb4e616a6f5caabc12104256d13049ee0744cf53ca7debe6efd.exe

  • Size

    292KB

  • MD5

    d0263e1e29b4f202bffd383f136395c4

  • SHA1

    24a701fe63e5b6d31c103db118ca21a75ed4496b

  • SHA256

    a6fc0eacb5308bb4e616a6f5caabc12104256d13049ee0744cf53ca7debe6efd

  • SHA512

    2d8af02d8bf2b8eb09c15a87e2c2cbcd7d34c619180e6dca29be3fd43108a0e993ab7aad418a2ecb2bb2e0792f382bb8b79dc85537f5bb7da1fdd7673e41339f

  • SSDEEP

    6144:Pz7IsdCrg45NVyLuYKq0sda9en510jjPvn7D/eFwF+0VSyEO:PfeNNUqnqf10nvn7DeFcRSyEO

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 21 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 16 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6fc0eacb5308bb4e616a6f5caabc12104256d13049ee0744cf53ca7debe6efd.exe
    "C:\Users\Admin\AppData\Local\Temp\a6fc0eacb5308bb4e616a6f5caabc12104256d13049ee0744cf53ca7debe6efd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4992
      • 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:4284
        • C:\ProgramData\GIEGHJEGHJ.exe
          "C:\ProgramData\GIEGHJEGHJ.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4416
          • 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:4852
        • C:\ProgramData\ECFHIJKJKF.exe
          "C:\ProgramData\ECFHIJKJKF.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4840
          • 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:5020
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JEHIJJKEGHJJ" & exit
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1740
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:2260

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\AAFIIJDAAAAK\KJKJKF

      Filesize

      148KB

      MD5

      90a1d4b55edf36fa8b4cc6974ed7d4c4

      SHA1

      aba1b8d0e05421e7df5982899f626211c3c4b5c1

      SHA256

      7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

      SHA512

      ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

    • C:\ProgramData\ECFHIJKJKF.exe

      Filesize

      293KB

      MD5

      6d1999f1096cee3f06507e0d896d7c4a

      SHA1

      947cde63e799d23622468caecd0172a4ce8e8c17

      SHA256

      6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c

      SHA512

      eb46aa64facd4456eaad1b24ee158b9e7bd5426580caf1ca4d5cd24fe08127612b8fcb2e1cedd054daff85e315d3942fb75bc5959c89baadf832d70a8a0982b1

    • C:\ProgramData\GIEGHJEGHJ.exe

      Filesize

      355KB

      MD5

      731a25a9b1f2c31056f7bd75c71deac4

      SHA1

      ac95005a75add78f8226e553ff3bb32bcfeef1ea

      SHA256

      d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d

      SHA512

      efccfa84482c3a262c2efe9d5107a22a94efae352a46d01c0c677266835bb1d4b04a105ff7b94c5042640d40672576512ca06201260a5ee82257c7f524304fa4

    • 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

      1bdc6d34b224973a4fe2b9ff746da9d6

      SHA1

      ae6266c5ba9cc515487ac4344061e17268e90809

      SHA256

      d03a471d17cdd8af8e64348e8de1af845245aa0d60a0c640970ab795fd6d3424

      SHA512

      a9cc0c06b2cc8dedbe75cfedce3bea9b5689eaa88a343304aa0960bf979791e4ccf9b6d2bc6a878f54093138020c81be1b3fb4b7a1c07c202bc0bc6f2ef3f698

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

      Filesize

      450B

      MD5

      08fd146ba72de192c39ec53feb211257

      SHA1

      726926b1262f8f31dfc1d4790c64107f7df3137a

      SHA256

      3c733ee0cba06a99a5ea45a62668fcb6c28df77ce061cfb7b3917451a1700c52

      SHA512

      5ff76557882c96c3e68907048d4cb761db547493080aa8e7c24d4049df5485156b224d2ca679410cab205230934cbc72d74dd8c144656ab8c8ab86dad4728a18

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

      Filesize

      458B

      MD5

      54a95e100a1dcf242a725593a5f6619a

      SHA1

      059d29a8fe6c1e004bc18748e6a6d0e8ff938d43

      SHA256

      c3d1504d3bc30b96a94cb09920b7b9182110c754b65d466a23c925019603712c

      SHA512

      0dc418cc4395a8adcd61957c79f24affdc733194600f2cd4402ec5402a7a88dcdde59eeab336faf652c033eaba83f057ae0d0f6681fae7beb025b8561ba23ad0

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\AA881N1B.cookie

      Filesize

      102B

      MD5

      01c88d11e162ca76a52731855dede195

      SHA1

      b0560cd48b61a068922f90cd2a2acb175a38fef3

      SHA256

      ae38c849ef17345aa43d524b13a10ef107e3ed7fef457e05559db92c18bba77b

      SHA512

      9dcb9761190bed3a993bcdd76189813df0a59ebd0b3d4fbc17e228cb06534d2610ffd345599bb849b5835d2eef23742932707558cf6d84f9bc666c38a7ff63bf

    • \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/4284-38-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-7-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-48-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-39-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-47-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-73-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-74-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-81-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-82-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-30-0x0000000020370000-0x00000000205CF000-memory.dmp

      Filesize

      2.4MB

    • memory/4284-9-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-4-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-28-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4284-29-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/4416-96-0x00000000005E0000-0x000000000063A000-memory.dmp

      Filesize

      360KB

    • memory/4416-97-0x000000007238E000-0x000000007238F000-memory.dmp

      Filesize

      4KB

    • memory/4472-0-0x00000000737FE000-0x00000000737FF000-memory.dmp

      Filesize

      4KB

    • memory/4472-1-0x0000000000FC0000-0x000000000100A000-memory.dmp

      Filesize

      296KB

    • memory/4472-2-0x00000000737F0000-0x0000000073EDE000-memory.dmp

      Filesize

      6.9MB

    • memory/4472-13-0x00000000737F0000-0x0000000073EDE000-memory.dmp

      Filesize

      6.9MB

    • memory/4472-12-0x00000000737F0000-0x0000000073EDE000-memory.dmp

      Filesize

      6.9MB

    • memory/4840-111-0x0000000000370000-0x00000000003BA000-memory.dmp

      Filesize

      296KB

    • memory/4852-103-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/4852-101-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/4852-99-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/5020-115-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-117-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-127-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-128-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-129-0x000000001FD50000-0x000000001FFAF000-memory.dmp

      Filesize

      2.4MB

    • memory/5020-136-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-113-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-144-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/5020-146-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB