Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08-09-2024 12:51

General

  • Target

    798773e476a288869b80bc5b3029f754a5b890cd02b2dedfbb8e9d4aecc39f30.exe

  • Size

    283KB

  • MD5

    a8fef7b198fa122ead5bcf5b84f2737b

  • SHA1

    00ac0d1d6354ba397ea4d69265ed227817a29d8f

  • SHA256

    798773e476a288869b80bc5b3029f754a5b890cd02b2dedfbb8e9d4aecc39f30

  • SHA512

    acf483ef4846e1bff039c615eca505547e3739c979a6ecf08bda31869d69c3b71dcbdab045ac28bfcd5bd8bc92201fd5841b54c48ccb39986b712a99f8ef7d3b

  • SSDEEP

    6144:/aYRRx/KV1vo9X/FLI/tiDS/MqmPJOUv5/iqfMvBO71BBEO:/9Lx/i1a/FL2tKeOJv5/iqEY7FEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/fneogr

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 16 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\798773e476a288869b80bc5b3029f754a5b890cd02b2dedfbb8e9d4aecc39f30.exe
    "C:\Users\Admin\AppData\Local\Temp\798773e476a288869b80bc5b3029f754a5b890cd02b2dedfbb8e9d4aecc39f30.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1592
    • 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
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5808
      • C:\ProgramData\AKKEGDGCGD.exe
        "C:\ProgramData\AKKEGDGCGD.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1552
        • 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:700
      • C:\ProgramData\EHDAFIJJEC.exe
        "C:\ProgramData\EHDAFIJJEC.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:240
        • 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:4472
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HCBFIJJECFIE" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5652
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:5960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\AKKEGDGCGD.exe

    Filesize

    321KB

    MD5

    3cc3c64c344fe15ed1ff28b4708b4e69

    SHA1

    89b21a0cf98cf01b412750cee558b7b857b7f95e

    SHA256

    9cd036f0f1f2b9e229d9449c958da1d3528c0955069e5e3c02c0a0d629dfd1d7

    SHA512

    d7fd0ea18e706044d726e3190e6be84a209e931ecc8d2bddbb50da3f179484789110ae63c497b4410450f89f952424662b052e5960bb5ca2e0d63f8bf19270bd

  • C:\ProgramData\EHDAFIJJEC.exe

    Filesize

    283KB

    MD5

    a8fef7b198fa122ead5bcf5b84f2737b

    SHA1

    00ac0d1d6354ba397ea4d69265ed227817a29d8f

    SHA256

    798773e476a288869b80bc5b3029f754a5b890cd02b2dedfbb8e9d4aecc39f30

    SHA512

    acf483ef4846e1bff039c615eca505547e3739c979a6ecf08bda31869d69c3b71dcbdab045ac28bfcd5bd8bc92201fd5841b54c48ccb39986b712a99f8ef7d3b

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

    Filesize

    2KB

    MD5

    e39c029e833d03e63f95f567f900009c

    SHA1

    d3a8a2a93b196c2fa6e15ea9e07961508b98c9d8

    SHA256

    15d439d383d0811d0b034f00025639246efd5cac92c3af80323a1c935b528297

    SHA512

    82ddc5d68a63a7a0b081856a43cd027d16a4420dde1bbc162bd8193fe266b94e58a279579391125f6952f1520c76aa55f7cac18ab26b147b341b24b9db99347b

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

    Filesize

    2KB

    MD5

    dd1fe1b28604aee93020a737bc2f0000

    SHA1

    be0010830efcaa50887b83bc650be8bf5bc03915

    SHA256

    a8ea8f94eabd58b777a1808e307cb995eb6e5542c9929db2f6f2faf9a9259c96

    SHA512

    a41812f4468a147f36095686f3472e7320ef1b7226e23d41e0c08abaa73909bea1fc1d4c787ae553a84a0d070b824760a757a82c677f5d1f28372610cd5bd645

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

    Filesize

    1KB

    MD5

    16ffd8864d244b5fea256041ac8cfaa3

    SHA1

    6a503bec6891ba5457cf8b1477c592a5b62fb2fe

    SHA256

    daab9af5cd301650f9639389174eadc04b84b302df5dacfd41ad5503cdcaa04e

    SHA512

    52cb8166b22dcf32e1d1f91efe25379f5f7ac049730ea670be267062ab5e22eda79e1b0bc3b82ae4e9ce4507067a07426b7bac4875709c7954a2f0302285ddf4

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

    Filesize

    458B

    MD5

    462827027e70ec3162b451ffe87767c9

    SHA1

    63b1c615afd7c7bf09e72c7d7e35fc82c93eaa09

    SHA256

    d5de19681c9e98925cfeec0dd895485d8a2bf089172aef490906f2e012c05d64

    SHA512

    2853319c8046be2788767b1f6233145972dfc7140f3a22e773051f7dea9515f582a355f401aa5d7fd684ce3c01751f4e3db7cc3957817131447294d93589e22c

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

    Filesize

    450B

    MD5

    bb1caec4cedc536683dd2ec179622d6a

    SHA1

    b9eeaa1acf81f381bb3b0931952dca2cd08316e0

    SHA256

    7b06b5d367f5fc31f7dcb065f46053aff18815bcd48e787b7311ad57b30ee8f2

    SHA512

    15066ffc8f76b50ec93957460928e0efc9a79b67a097c88f6bbe1015a8ed396f1091ac79750e8e2238f007c8dfcbd7873a53693e9d3a1f963f42bd6a3f42ccd4

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

    Filesize

    458B

    MD5

    f06b9b912f2dfb95f363db9b963c7452

    SHA1

    ba5c083b34f750a63185015fa6aab56812af9f7c

    SHA256

    d50e81b52fb443802c1be086c61f1f47b7f707e1fc6ea3183182c8094a878e9b

    SHA512

    5813e0e4b8a63734e2ba5be4c1320b9f387e6ad7b3c1a62e9b6d7989dedd8a8d8de0cd881cabb179c9be6220918e3310833a209148aa931c4f0d119c1516f7ab

  • memory/700-131-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/700-133-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/700-135-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1552-115-0x0000000000400000-0x0000000000454000-memory.dmp

    Filesize

    336KB

  • memory/1552-114-0x0000000071B3E000-0x0000000071B3F000-memory.dmp

    Filesize

    4KB

  • memory/1552-129-0x0000000071B3E000-0x0000000071B3F000-memory.dmp

    Filesize

    4KB

  • memory/1592-11-0x0000000074760000-0x0000000074F11000-memory.dmp

    Filesize

    7.7MB

  • memory/1592-1-0x0000000000020000-0x000000000006A000-memory.dmp

    Filesize

    296KB

  • memory/1592-23-0x0000000074760000-0x0000000074F11000-memory.dmp

    Filesize

    7.7MB

  • memory/1592-0-0x000000007476E000-0x000000007476F000-memory.dmp

    Filesize

    4KB

  • memory/4472-151-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4472-150-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/4472-141-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-28-0x0000000022350000-0x00000000225AF000-memory.dmp

    Filesize

    2.4MB

  • memory/5808-94-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-93-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-92-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-85-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-61-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-60-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-59-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-43-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-27-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-26-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-7-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-8-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/5808-3-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB