Analysis

  • max time kernel
    141s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2024 19:14

General

  • Target

    da8ea167e1f5c4f45d6ddcaa54e117a2c569dd2f241f8376a0c51da0386065a9.exe

  • Size

    204KB

  • MD5

    43a87764a895e941113b01a42cb59911

  • SHA1

    85b3014ec4e90debe0b5a13cbecb7645a91e64c6

  • SHA256

    da8ea167e1f5c4f45d6ddcaa54e117a2c569dd2f241f8376a0c51da0386065a9

  • SHA512

    9e63ff3b13c3f34014cc65aacb7f529792a699a2dec6a4c52856564788b2b16f6b6c6447d326cba4f9fdbb6b33ad4f950b66cd6066b5bbc3f5700e4d438a97ac

  • SSDEEP

    3072:e5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlA4:eLexkuRaX41xoyJV65gzyZko+ucr

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da8ea167e1f5c4f45d6ddcaa54e117a2c569dd2f241f8376a0c51da0386065a9.exe
    "C:\Users\Admin\AppData\Local\Temp\da8ea167e1f5c4f45d6ddcaa54e117a2c569dd2f241f8376a0c51da0386065a9.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:5088

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YY018DS9\login[5].htm

    Filesize

    168B

    MD5

    d57e3a550060f85d44a175139ea23021

    SHA1

    2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

    SHA256

    43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

    SHA512

    0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

  • C:\Users\Admin\AppData\Local\Temp\A403.tmp

    Filesize

    24KB

    MD5

    03d583f0104425954c29ab60aefb5044

    SHA1

    ce1eeb1ade5526868dcc770484c5e2524e58be31

    SHA256

    2be0794f3aa554b3b16d30ec7fdcb44ff689ec5d59aaa41f38a52396208055f9

    SHA512

    89089a9245cc0a1569df6f7d2390c24f4f1e3d61252a0abb46f7127932598d3a401c801cc4e7e1072caab4957dd799d73cf03a81c3db1796b13989705a38619a

  • C:\Users\Admin\AppData\Local\Temp\A423.tmp

    Filesize

    1KB

    MD5

    9c1b34d214be60079a1f20b6dc602798

    SHA1

    f36d65bb7ee7fb53339de9bcb17c41196748f21b

    SHA256

    12a3e6a63782f17141f7991f7312a1f3cd384d8f7fcd3334ba58e7b6f076b0bf

    SHA512

    66559320087c809121995c5b1ff4c26cad1ab96bf7b53ae43d9e26e4eb9c860f68c21b2774dbf81954bade3dcb19823851e9feb82e8c0f6a84235c948d2678fc

  • C:\Users\Admin\AppData\Local\Temp\A463.tmp

    Filesize

    42KB

    MD5

    4d40ba00586a589307198b1d38f97398

    SHA1

    b4e2a99303e280cc02f0f25d983ebbb006ac3fc6

    SHA256

    8897355da66f9365ddc0f0cdbe4dab18dcbcc00177ec1bd082bda51aebd00a4b

    SHA512

    fa43c9ce18113270c6a5772ff3bed8efd152cd973f8eac5c3d4b7a0624b58993c3208a407bb966ddcda3494b7b98f57ac03cbb92d1bf44d52fb5b041f835884c

  • C:\Users\Admin\AppData\Local\Temp\A4E4.tmp

    Filesize

    481B

    MD5

    8c209140a07e39ef77724d248318a3aa

    SHA1

    39ba32c75a8dd06df0316508bdc5b047442a315a

    SHA256

    20d57ada3ad693ac48abc522ad5c9686efee8e849d772bb54c628f05e9991d33

    SHA512

    677888e96cf5b55d52e5029bc5020e524bf5db245ae0f2088d06593b4361a0155224254cf7c9ba74edc4fb22ab1cbc7777f7d5196c92841080c5912e574d58e2

  • C:\Users\Admin\AppData\Local\Temp\AE40.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\AE40.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\E5C3.tmp

    Filesize

    61KB

    MD5

    2b67d60aef0988d734f83084f4487eeb

    SHA1

    34ead57c2f2972545f22fc59d47bdbeb24e49e87

    SHA256

    6f3178b623adaa1b5649e6b94a3f1c2f545b9608ae7da23c01797eacfd25d4dd

    SHA512

    ea6a476f85ceae0cce704cf8a7db202a83537c5004f50ca387e12674507f0890409caeeb7e287acf642bb742970ac74ba9cd379fd0b9e8d7e22b3d1ea41137f9

  • C:\Windows\apppatch\svchost.exe

    Filesize

    204KB

    MD5

    76ec9062e5fe4c318543914d30dcd37d

    SHA1

    200b4d23cf86fff5881fd36d7695b8b33aa8e0c8

    SHA256

    bf2a88f7985aefadf75255c2d781c38395ed0565bc93bc79f07e4632522c89a9

    SHA512

    841f878c6d66a1241f9f72d3acf34ee68ef15a2ecfd04f297bd72cb942a847551bf3f7739ead91d35b10e0f74592d99f085d3f33466c8d80e2fc40654002254a

  • memory/2760-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2760-14-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2760-15-0x0000000000680000-0x00000000006D1000-memory.dmp

    Filesize

    324KB

  • memory/2760-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2760-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2760-1-0x0000000000680000-0x00000000006D1000-memory.dmp

    Filesize

    324KB

  • memory/5088-60-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-52-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-36-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-29-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-42-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-79-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-78-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-77-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-76-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-75-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-73-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-72-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-71-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-70-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-69-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-68-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-24-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-67-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-66-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-65-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-64-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-63-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-61-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-20-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-59-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-58-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-57-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-56-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-55-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-54-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-53-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-22-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-50-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-49-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-47-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-45-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-46-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-44-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-43-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-41-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-39-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-40-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-38-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-37-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-35-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-34-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-33-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-32-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-31-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-30-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-28-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-27-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-26-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-74-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-62-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-25-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-51-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-48-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/5088-19-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/5088-18-0x0000000002B40000-0x0000000002BE8000-memory.dmp

    Filesize

    672KB

  • memory/5088-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/5088-12-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/5088-13-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB