Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    09/05/2022, 19:50

General

  • Target

    df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

  • Size

    100KB

  • MD5

    c7a310982da68b10360854f9cd78e718

  • SHA1

    60140c28e0b7db797a771c2dee081fa3812246db

  • SHA256

    df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

  • SHA512

    6747fa3f7637922eeaa0feeb25d430dc6ab66fd9f3d22e7e5fd16bad9b75528a8174c34a8baf681950b64e8cdaa6a14e37633592e843c363e75468622ebd2ec3

Malware Config

Extracted

Family

arkei

Botnet

Default

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

    suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

  • 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 Win32/Vidar Variant/Mars Stealer CnC Exfil

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

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 8 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe
    "C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:1768
      • C:\Users\Admin\AppData\Roaming\azne.exe
        "C:\Users\Admin\AppData\Roaming\azne.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1552
      • C:\Users\Admin\AppData\Roaming\pm.exe
        "C:\Users\Admin\AppData\Roaming\pm.exe"
        3⤵
          PID:988

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • C:\Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • C:\Users\Admin\AppData\Roaming\pm.exe

      Filesize

      448KB

      MD5

      ca055c1392d7c2c1042f36f381c5e233

      SHA1

      27ca3d15e63ea61af967f60fed71d841361c0907

      SHA256

      76ffe6a0da3dd20693c57872faed0eb57da3045504355ac50c4a84c8f78d7269

      SHA512

      09d5ceec5825ada22e548d39c2deb8c79bac9a50d5d1a9514a6605003ec3b610ef0510bd1aee93858c3629148f732b523c6f537bbc48d690a037b294d787e855

    • \ProgramData\mozglue.dll

      Filesize

      133KB

      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • \ProgramData\nss3.dll

      Filesize

      1.2MB

      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • \Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • \Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • \Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • \Users\Admin\AppData\Roaming\azne.exe

      Filesize

      100KB

      MD5

      683600b61a32d3eb2cd44cb34fdf7ab3

      SHA1

      e8bdd864c2610495850bf525cd1529c66c0b0b53

      SHA256

      26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29

      SHA512

      5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

    • \Users\Admin\AppData\Roaming\pm.exe

      Filesize

      1024KB

      MD5

      c1bd96a453abf8e7c351e3ebc73f5609

      SHA1

      fd59fde43cf8c803852d338a9a96c1e838017787

      SHA256

      356719152a85512bc00817774000c94d8b07650126dd0097989bab781053fbac

      SHA512

      d0608b7b069360327544fbf4e3ab89012361c188973c50e7ddf825dacc8d0e1b786c08e1118a23acd1b84252a1b9e4b7513ebaceea622b3b7a9bbb1414ebb6d2

    • \Users\Admin\AppData\Roaming\pm.exe

      Filesize

      1.9MB

      MD5

      22e6d862d6f51b6283b60badf02b6f81

      SHA1

      11920f1bf418f67cdbef320aa1afee596ef27537

      SHA256

      dac5f2e7bcabc924576254aed4a53b112bb19ca9869dfbc7b427765746374d33

      SHA512

      ed639b7111810e76d5f0b737165e57a306e948ad05ade8687af9575f38968d238f0e2056ead7d7f2ab545ace3ca58b13baf0c5dcb8a2ed9428b3e06b6a42016a

    • \Users\Admin\AppData\Roaming\pm.exe

      Filesize

      1.8MB

      MD5

      f4e6a8663ce0d5e899ae7b08ff05cfcb

      SHA1

      da064634e52818c44e93f97ecbf7ad305de454ea

      SHA256

      c61c716dc00b99602f7086abd39cfa666bdbe21596db52f7c96b78a91b8f1dab

      SHA512

      9ae163eeb4a84aba76ffb7719583295039b3f2ac91ffd6e2d98b527186f9b1a3eebeda39328d872ee735c312fa08af64ee823109faacb1496f765e6c41f96a3d

    • \Users\Admin\AppData\Roaming\pm.exe

      Filesize

      1.6MB

      MD5

      d97cfd933cde9a414e3e6a8b11bbc0e7

      SHA1

      af5511babd999a2549ceba12bd5ee9d49c9d0541

      SHA256

      35db31ccfab2eded505aea3dbd63a8c9452e9cae2338f346cc5865c3427e648c

      SHA512

      6af3acac4831dc5358f792eb8b43b9107dffc741990f9bafe0d7c34f0d40d7bc2e103e9a105ec9e2158161908822a036a10f32375d70ef94b03dafd62c2f819b

    • memory/1552-101-0x0000000000C60000-0x0000000000C7E000-memory.dmp

      Filesize

      120KB

    • memory/1768-63-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-64-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-71-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-70-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-67-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-66-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-73-0x0000000060900000-0x0000000060992000-memory.dmp

      Filesize

      584KB

    • memory/1768-58-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-61-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1768-59-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2004-54-0x0000000000B80000-0x0000000000B9E000-memory.dmp

      Filesize

      120KB

    • memory/2004-57-0x0000000005240000-0x0000000005288000-memory.dmp

      Filesize

      288KB

    • memory/2004-56-0x0000000008600000-0x0000000008764000-memory.dmp

      Filesize

      1.4MB

    • memory/2004-55-0x0000000076191000-0x0000000076193000-memory.dmp

      Filesize

      8KB