Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    25/09/2023, 00:23

General

  • Target

    6288775aea1c2aadac755eafbcf3a82f3fd6354271a27df24601f3ccd3b312ef.exe

  • Size

    270KB

  • MD5

    9b006c64abd725046655dbcc3a6803ec

  • SHA1

    005d333bcf904c349011830424857ecbf90a44fc

  • SHA256

    6288775aea1c2aadac755eafbcf3a82f3fd6354271a27df24601f3ccd3b312ef

  • SHA512

    b05350b7f32a742746dc7d21c6b98c34e491cd798ef8e58423c70f6d7284678386b20f077e74ece932219287221f129d2b8e7df3ccba9b553cc9c0d342091f7d

  • SSDEEP

    6144:RRRhrJ+j+5j68KsT6h/OCy5U9uAOQAFyToP21qw6:RRHN+j+5+RsqGGubFiO3w6

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Signatures

  • Detected google phishing page
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 7 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 56 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\6288775aea1c2aadac755eafbcf3a82f3fd6354271a27df24601f3ccd3b312ef.exe
    "C:\Users\Admin\AppData\Local\Temp\6288775aea1c2aadac755eafbcf3a82f3fd6354271a27df24601f3ccd3b312ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:5048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3004 -s 180
      2⤵
      • Program crash
      PID:4612
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9BE3.bat" "
    1⤵
    • Checks computer location settings
    PID:4920
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4180
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:2396
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5056
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:1300
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    PID:3804
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    PID:5076
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    PID:4712
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:2032
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies registry class
    PID:436
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:2780

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2RZQZMR9\edgecompatviewlist[1].xml

          Filesize

          74KB

          MD5

          d4fc49dc14f63895d997fa4940f24378

          SHA1

          3efb1437a7c5e46034147cbbc8db017c69d02c31

          SHA256

          853d2f4eb81c9fdcea2ee079f6faf98214b111b77cdf68709b38989d123890f1

          SHA512

          cc60d79b4afe5007634ac21dc4bc92081880be4c0d798a1735b63b27e936c02f399964f744dc73711987f01e8a1064b02a4867dd6cac27538e5fbe275cc61e0a

        • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\TXIC96VU\B8BxsscfVBr[1].ico

          Filesize

          1KB

          MD5

          e508eca3eafcc1fc2d7f19bafb29e06b

          SHA1

          a62fc3c2a027870d99aedc241e7d5babba9a891f

          SHA256

          e6d1d77403cd9f14fd2377d07e84350cfe768e3353e402bf42ebdc8593a58c9a

          SHA512

          49e3f31fd73e52ba274db9c7d306cc188e09c3ae683827f420fbb17534d197a503460e7ec2f1af46065f8d0b33f37400659bfa2ae165e502f97a8150e184a38c

        • C:\Users\Admin\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\AC\MicrosoftEdge\Cache\ZRWDQK9P\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\MicrosoftEdge\Cookies\4EC20AFI.cookie

          Filesize

          132B

          MD5

          6e26d576e5bb6d389bf459c36fcf2750

          SHA1

          cb18ca4ada45d56047f92800137d5f37d2b8a127

          SHA256

          2b93aeda98353d1fb97ae67e7dc800689e05aee30a47af39780fbacf3f94e6dd

          SHA512

          ba908b4a56a0dd9fa282a4671c53c1b5b54d9abc934eb6d86b03a5af82b7aaeb23df2f9f834749e310820c4aa29661d3722f2240fa6c16d7e86f82d55b4a120a

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\MicrosoftEdge\Cookies\TBIFPPNP.cookie

          Filesize

          132B

          MD5

          7dfbbf316f441f0e1eb11d9afadb7b46

          SHA1

          af782655afc7edba9f62002ecf5dfb19d16a5b3e

          SHA256

          fe3235f8483b2ec7644df04707c79f957343d6c8469274086abed3ec57c10718

          SHA512

          4e5f05e1f5ab74abe154e426b126dcaffbf8a62d7401ab884aa67677df6241d48cba612f5d16796608773d267c98c57414682eca762e6564376409d235a11e34

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          1KB

          MD5

          b5eda74305a01c41450e0d12777199e1

          SHA1

          36162e9e8c3a69b237d317f7c300f11927a37c12

          SHA256

          6e5c17b2b4e22fa800baa0eaf0b76ce73005e463b915503e8bca92223b9cf594

          SHA512

          f96b2ea451f4ceef082e1289a7f1e160580f5a8d515eaf2b4df0d8d818c34355c17538806f873fba07118b5c937d8c3172721ee03e3d16126e07c0db5faf16f3

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_A7725538C46DE2D0088EE44974E2CEBA

          Filesize

          724B

          MD5

          ac89a852c2aaa3d389b2d2dd312ad367

          SHA1

          8f421dd6493c61dbda6b839e2debb7b50a20c930

          SHA256

          0b720e19270c672f9b6e0ec40b468ac49376807de08a814573fe038779534f45

          SHA512

          c6a88f33688cc0c287f04005e07d5b5e4a8721d204aa429f93ade2a56aeb86e05d89a8f7a44c1e93359a185a4c5f418240c6cdbc5a21314226681c744cf37f36

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\Content\F2DDCD2B5F37625B82E81F4976CEE400_87DCDABBB68171FA19C9A78DBA85E190

          Filesize

          471B

          MD5

          3b7403306365b481a905b872a4a8fe8d

          SHA1

          848d8b54a1b0fa0f473fe13bbabcb7872c0a6067

          SHA256

          f7ffcd2b2deb0aafb5ab3eca136e1bfa6560686bf31f6982afeb0535dfd70bd7

          SHA512

          bb40f31f256d4635c9ef00ef2eb7f6d959a262e55e8028d2d009073b74979900672073db15b2e3130b551dfe3b770863251940fa13c49375b8e18c5be24fb2a9

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          410B

          MD5

          2198e751aab64a0497cd7ede48ab5e64

          SHA1

          8446000fe0368ea2b4e445d74774edcc0572fedb

          SHA256

          0b1a1729806118edf38e209450dcb7b88b5108f95ed3b49ecac2459a1ba82c6f

          SHA512

          813943011ce6195dfebc92796dbe68d1e1e943a345365117769ae2b1e68a6577a659cbfec671f318779d8c05c12ed860fcb482542537e72562779d633ad03c36

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_A7725538C46DE2D0088EE44974E2CEBA

          Filesize

          392B

          MD5

          3c84b9cc87d199bc99c2565777f7a5b0

          SHA1

          4cda1045d1fc60bfecb091c05da5c0f0f694e280

          SHA256

          1cf822851b10ab4da00fda33d50b43f32e17513f8d6862fd75b15419f1e5cf71

          SHA512

          e4127e173cf97e1bf01125c5cce0b89890791ea48d6d2115d0534f46d9562566458075a9c5064977a0c478826be703543942af23c32a3758e07e1bbea60d66aa

        • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\#!001\Microsoft\CryptnetUrlCache\MetaData\F2DDCD2B5F37625B82E81F4976CEE400_87DCDABBB68171FA19C9A78DBA85E190

          Filesize

          406B

          MD5

          de5ac0b85a3b6c72b818a3b60568ad12

          SHA1

          630d42046afe974c473fc8382769bd32d1e58724

          SHA256

          0de60be44139d52701dc79099af4b5e5797bc2412da9041bc9025dc01dc93757

          SHA512

          6db19858b01b28683b2fc2f85d8cd7575518c5a701d2a953136803c9bfc429fcc425b2a807423cd633e3ced7c1a07138216cc44e924687542c7803fe05b733ca

        • C:\Users\Admin\AppData\Local\Temp\9BE3.bat

          Filesize

          79B

          MD5

          403991c4d18ac84521ba17f264fa79f2

          SHA1

          850cc068de0963854b0fe8f485d951072474fd45

          SHA256

          ef6e942aefe925fefac19fa816986ea25de6935c4f377c717e29b94e65f9019f

          SHA512

          a20aaa77065d30195e5893f2ff989979383c8d7f82d9e528d4833b1c1236aef4f85284f5250d0f190a174790b650280ffe1fbff7e00c98024ccf5ca746e5b576

        • memory/436-477-0x000001E8063D0000-0x000001E8063D2000-memory.dmp

          Filesize

          8KB

        • memory/436-480-0x000001E806400000-0x000001E806402000-memory.dmp

          Filesize

          8KB

        • memory/436-482-0x000001E806420000-0x000001E806422000-memory.dmp

          Filesize

          8KB

        • memory/436-492-0x000001E817470000-0x000001E817472000-memory.dmp

          Filesize

          8KB

        • memory/2312-4-0x0000000000E80000-0x0000000000E96000-memory.dmp

          Filesize

          88KB

        • memory/3804-201-0x0000019E68D00000-0x0000019E68E00000-memory.dmp

          Filesize

          1024KB

        • memory/3804-362-0x0000019E698F0000-0x0000019E698F2000-memory.dmp

          Filesize

          8KB

        • memory/3804-366-0x0000019E6A640000-0x0000019E6A642000-memory.dmp

          Filesize

          8KB

        • memory/3804-370-0x0000019E6A650000-0x0000019E6A652000-memory.dmp

          Filesize

          8KB

        • memory/3804-375-0x0000019E6A660000-0x0000019E6A662000-memory.dmp

          Filesize

          8KB

        • memory/3804-214-0x0000019E679B0000-0x0000019E679D0000-memory.dmp

          Filesize

          128KB

        • memory/3804-357-0x0000019E698D0000-0x0000019E698D2000-memory.dmp

          Filesize

          8KB

        • memory/3804-326-0x0000019E69840000-0x0000019E69842000-memory.dmp

          Filesize

          8KB

        • memory/3804-413-0x0000019E67BB0000-0x0000019E67BD0000-memory.dmp

          Filesize

          128KB

        • memory/3804-414-0x0000019E67610000-0x0000019E67710000-memory.dmp

          Filesize

          1024KB

        • memory/3804-430-0x0000019E69A00000-0x0000019E69B00000-memory.dmp

          Filesize

          1024KB

        • memory/3804-352-0x0000019E69880000-0x0000019E69882000-memory.dmp

          Filesize

          8KB

        • memory/3804-340-0x0000019E69F00000-0x0000019E69F02000-memory.dmp

          Filesize

          8KB

        • memory/3804-333-0x0000019E69EE0000-0x0000019E69EE2000-memory.dmp

          Filesize

          8KB

        • memory/3804-330-0x0000019E69B00000-0x0000019E69C00000-memory.dmp

          Filesize

          1024KB

        • memory/4180-381-0x00000172068D0000-0x00000172068D1000-memory.dmp

          Filesize

          4KB

        • memory/4180-385-0x00000172068E0000-0x00000172068E1000-memory.dmp

          Filesize

          4KB

        • memory/4180-51-0x0000017200740000-0x0000017200742000-memory.dmp

          Filesize

          8KB

        • memory/4180-32-0x0000017200500000-0x0000017200510000-memory.dmp

          Filesize

          64KB

        • memory/4180-16-0x000001727FE20000-0x000001727FE30000-memory.dmp

          Filesize

          64KB

        • memory/5048-0-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5048-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5048-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5076-145-0x000002C24CEE0000-0x000002C24CF00000-memory.dmp

          Filesize

          128KB

        • memory/5076-141-0x000002C24D1E0000-0x000002C24D2E0000-memory.dmp

          Filesize

          1024KB