Resubmissions

26-03-2024 14:35

240326-ryecksfd5y 10

26-03-2024 14:27

240326-rse2xsfb8y 10

Analysis

  • max time kernel
    1793s
  • max time network
    1560s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 14:27

General

  • Target

    79271d57c531c79536bc0be0d71e3a372bed9c10689257a7727475ab41e3e161.exe

  • Size

    3.1MB

  • MD5

    91e55c043a89444b7cdfb335d4e4a5ba

  • SHA1

    d72203d462053c1636e20cf648669b040357d5db

  • SHA256

    79271d57c531c79536bc0be0d71e3a372bed9c10689257a7727475ab41e3e161

  • SHA512

    3f3efbb9928a8ffa683d2c528bc442545fb330fbf981ff639a581effc91569743258cbad88e9a2c8b6e66448e56af023213fc408ab66a6b53565a4e030a37777

  • SSDEEP

    98304:DFkV34ua2ltBgzXU4Us1DgAtayHKlqo7/Whsg:Db0ltwzDtZHg7/Yx

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 9 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 51 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 21 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\79271d57c531c79536bc0be0d71e3a372bed9c10689257a7727475ab41e3e161.exe
    "C:\Users\Admin\AppData\Local\Temp\79271d57c531c79536bc0be0d71e3a372bed9c10689257a7727475ab41e3e161.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Program Files (x86)\SinBa\SinBa.exe
      "C:\Program Files (x86)\SinBa\SinBa.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Checks processor information in registry
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1080
  • C:\Windows\system32\efsui.exe
    efsui.exe /efs /keybackup
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1548

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\SinBa\5F82D823-6244-447E-BA3E-A5FAA27629C3.dat.crypt
    Filesize

    145B

    MD5

    e251c7d93b5f4015c7692dab2b3a4fe0

    SHA1

    67af4297b10b031d7633ffb8373c2290fb856ac2

    SHA256

    16f814b98d0e48cd9b77c7257af34a3f9f705d0a8baebff9880b22ef689548db

    SHA512

    8f7bbf6470ba18853ebab0f087a851f228a799518054e81ae7e854dd7973029594273c07f76241ae8ddd468cd80ce5317d1ae02884923075b7d3c95717df0449

  • C:\Program Files (x86)\SinBa\5F82D823-6244-447E-BA3E-A5FAA27629C3.dat.crypt
    Filesize

    307B

    MD5

    7245a3444912c62dd98a63e9555b05ae

    SHA1

    1a8e6d0ab05b7c80e466ab2aeb9fd3dee0e2e22f

    SHA256

    cbb17d83c67e1413ea15bd5fdfce315322f6b97af20f47a54bb3c81cd0114d12

    SHA512

    9a6accbc9a2332de835db85507aa6f4ae79015998db3d35d837a8901d513c0096016ab33ba832af09daa939fae87c0e57f8793f9b5f475c5511048707d95ca0d

  • C:\Program Files (x86)\SinBa\5F82D823-6244-447E-BA3E-A5FAA27629C3.dat.crypt
    Filesize

    376B

    MD5

    ac6af433024b4d79a639ebfdf8037542

    SHA1

    60f879bfa81ce2f16b0bda68f165aa87db432268

    SHA256

    31b286ca7d0c12e0897c326fece0f1d9542b707218481f164062a01e1f1c2cd2

    SHA512

    02ef335a5fa1a042c154260acf16a8125b6db52e4dd98e30399b88dfb6abaa6cabb5af225494c8886428e22b225e353ca7fc61538a81bb715940444e3c52329d

  • C:\Program Files (x86)\SinBa\GGDUI.dll
    Filesize

    455KB

    MD5

    4b6ea9bc09ed57c8340ffa9a87c8e83a

    SHA1

    42cd565baba75364ff99390b64e4527c874a03f6

    SHA256

    d9d25eb59c2690de8c7d5c89fbb352712d2fbc1f026778ad56244eb11ec7e652

    SHA512

    b394e836f9b105b18f25436312c83b9530588189dcbcbacea85b170765d7e6abdbc256d001a295dc797732c9576cdad03fcebad9cb1ea76bbc8bf1f087b0afe4

  • C:\Program Files (x86)\SinBa\MSVCR100.dll
    Filesize

    756KB

    MD5

    32fc1a3bfd9bedbf2dd73d65b40c2034

    SHA1

    be2618ea8db2a0e69a21e260407b1b18360f74ad

    SHA256

    da591987a11586d48e7b2f59a08d94c78e44dcbdd40da1ce721c30e499088336

    SHA512

    141d3f1b37adecd6515e0b38ab3969ec6da53d190bcd7056587f0bd51728d08d04b4ed4f5d8304901d37f32d824f43189fa8e5aaef21abe1cca67b7402f6d641

  • C:\Program Files (x86)\SinBa\Ver.ini
    Filesize

    4B

    MD5

    d5a637cd11aa722a9b4c922c7b740a63

    SHA1

    da414426cd871fc845e4c92941c81541bd1871c8

    SHA256

    cb5d2011975d7a70e93f7cf9d2934fc752c4f1c5013a80cd34b8d2deb5ded6b0

    SHA512

    f5e8b42f8034b85cba78846737ef7c17c91f678b5acf2b9b363ed3c60aa7a6dbc40f11e6cc6a5dfe07d5c4c07af4b72b8039444ef10a14b92a3ee3a54324aba0

  • C:\Program Files (x86)\SinBa\config.dat
    Filesize

    1KB

    MD5

    19f26e6a7702658da06cc168e946c514

    SHA1

    9264b2774488297fb725e9bf9f74c63d3a0ee735

    SHA256

    098c1008771bab400ecb916c9f12bc9efaeab2f6d475a7c9610a4b07bf541849

    SHA512

    5b6c3ca65692a38be8412de65e293e144e12e79767d24971bfa9457a4234732c0a7aaaca7c6c0616133e7be34a93585c2904f8671b2570778227430fd962a46f

  • C:\Program Files (x86)\SinBa\config.dat
    Filesize

    1KB

    MD5

    311971f3c6031b1ac65c1c530356c94d

    SHA1

    93254ff74d0fa50fb04beb7dadf4f39503a80770

    SHA256

    50522c39f39b9144c345207a0f705b1f41c1b4c7e3fdbc97944dcb04ad09494c

    SHA512

    cd0c3724cff29f372e64ed36184d325153b2d3c4d42882f126f5ebbeac7bc188eccb3a6ca9511ea6b6e81698f5d7c9f4fcd74587f57a954d34d7dd4d13b08828

  • C:\Program Files (x86)\SinBa\default.zip
    Filesize

    315KB

    MD5

    835a95e20d9be88a0aed93a21bd18320

    SHA1

    efe1ab4755bb208a9b8a1bd4777c5e1f6022033a

    SHA256

    9b8007165f5e8becc46e12bb176b27adc8180fde0e2ae69ede12f585cd7c8f39

    SHA512

    275ba566e0d9c358c2edef6b9efba115f5e1f020c6ef478a80895e6f124562ba9b625d097640a985e9bd3c0c8f586d6cb459d85894d1310722f7c9b02f3654d4

  • C:\Program Files (x86)\SinBa\local\blocklist\blocklist.dat
    Filesize

    1KB

    MD5

    aceb6492ac8dbab4ebd9687c3445164e

    SHA1

    57a1886490ad70be74f7ec34fef28abb4b47846f

    SHA256

    1a5aca5295c1d8b264ddf918e7d3cbff00f40718a272844dbc6ae0decefb0405

    SHA512

    6d9ad825d4a24ca8a2aa00bb4488cf56f01534feeae41862098ee0edd29816905717ec5566557a95d30619a5e3e1b0507541f3cb7c3facc5466540b316f481dc

  • C:\Program Files (x86)\SinBa\local\blocklist\blocklist.dat.tmp
    Filesize

    785B

    MD5

    c8a53e693ca4fb5d58b99aad262f9d8b

    SHA1

    531d1feeb81887ffe99906093137d73391dcc977

    SHA256

    774993c2f43b81361c7eec7d77767a2bdccc18eb704fc2c46310973a4810ad1f

    SHA512

    acd26eb988210113ac728b1c146764cc41787e27d6ff9b6d7b3667c260f0450251b38b716f8ce24d55a649b7252bbe9064f03cb3b49783641b26fa273e5d5ee5

  • C:\Program Files (x86)\SinBa\local\homeurl\domain.txtGG
    Filesize

    179B

    MD5

    cc80322245b5c9dd7271708f22d612dd

    SHA1

    0345e4c6c2e692e26583285664f32f6cc7dd10cb

    SHA256

    9411a789d7206633d2eb3e3f261106223cc09624fa9efa92b9817b7ea67e11a4

    SHA512

    92532d5680206fd7d1d7a32ae639f02bd2ddd524d7b2cb45a42070842eaa5a3cbf4c1ca11978b8e34047afff19e5a961ec1b57f6f26ae7ff24f420cc69189b19

  • C:\Program Files (x86)\SinBa\local\homeurl\domain.txtGG
    Filesize

    127B

    MD5

    b29e2cbfa269c80bc8ae1f5c9df7f787

    SHA1

    22b9f84793f2e56a116822943ba31419ef728730

    SHA256

    8b9a18f8ab7cc377151deb7ddf3ff83435cd697aae1283dc2fa50e5298e3e1bc

    SHA512

    c64c7881b0c62b63ad92629772f070c0d4c2b99b97d303f4e294ab14061e8d421d24c5440615b5cd720a861854984a1e8b919fb7dae911e265db105cbe9255f5

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    92B

    MD5

    e36c9f2f02078a73cfc83634f7eff8df

    SHA1

    2a450bb4696d13cbd2f7813fbe9825a9cdbebaee

    SHA256

    6dde63a1882f7e8aeaca623bfe518e88210177045b9728c0e5d8f4c747fabf59

    SHA512

    db0994441883e7c1743e9eb0ee5b3794d3cd15b1253fd1004f080ea6d831f85b910169a6422189816f776a76aa162edbc57ad9e681e2af03e41bf952a15c4b89

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    389B

    MD5

    a7d8ec35df9ee486a7a6bebe4a3288fa

    SHA1

    4e891491a2655bf5ddf920bd21b298358ee6f1b5

    SHA256

    8de9657c4d7bd04266e88434ce46d60e2e9664a992c3b2fcabb62f4e8103e9cc

    SHA512

    3f7bc6ce3f26ac5e90dfc51937005a09a8279c2f24b46d847a491a5629551bf6c37f1f4bd33755c7cd2a7989df49f960b3ea38cf014e6f891b8006658b2ff45c

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    388B

    MD5

    1c09ed59654962fc92609063c2bbd492

    SHA1

    6d8555e37533db728115564e245554768a8df911

    SHA256

    61b57284ed3a18f41facc532b69ef4412e651c976e5e87cab1f344f9ce77241f

    SHA512

    e5ab34ea74d19a2648fdce84c727b66e8107b149579b33c0060d7b3e997ae9e5b332f04c9ca98085005e0a0fcb5e8d86704900603298cca869c5fb14609a7f64

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    387B

    MD5

    e1b7a42ae651667c44d2404c078d8798

    SHA1

    742b5b2ec440697ca6dda188cf7f820736fff5bf

    SHA256

    6d798e085832a5234c024303fb063b44ee599dcd8890c74ee70ed89caa0c5698

    SHA512

    fe8d4403c9fc73dcff119cbbac01fad2fa0c2bc976f6da942547cae9702623ea32e91844257783c6e8bb6c9893890af1029a7ebd3d2ba40b45aff082cbb25aea

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    387B

    MD5

    a5e0ad30810440166934705b679119a7

    SHA1

    d47c85c7aaff43585d09a5197670207b82112424

    SHA256

    90903d6e42cb39c4386ecf7814058824aeb3e39eb615a751e2173901d8edce5c

    SHA512

    d2ace248b0e6ef2281c347536bf2fb349e4eadf6fc636a44ac94c2e569528b583378449e423f9dcf902862244958dbee4c217e7353a1c3fed278d8801d7f6a1c

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    386B

    MD5

    6ad1353b4aeff8b08efda4bd9165dec7

    SHA1

    1339195bdf9885223e10d58c447a3badb33c4464

    SHA256

    90297ff9b607b95d5ab38f361978141fe6a981509a984370239bcb70a4224ca4

    SHA512

    1fb86e6a11a79bf71e316de510d3b31df086d0c32e59dd185514a35fe1039330bb1fac18a1df9c20864a63bf45b48ad88712284846f2efb607ea61727a8a3cd3

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    385B

    MD5

    b1e7bf6eb1b7b6cd3873c6a446370120

    SHA1

    05a2aaf2c1d69c2f93100254dd8616c48522f3ba

    SHA256

    d479b2e2c7a07842b82b7d40b063b8ab1227a3ed9fc5bd150848f3cb22317a6f

    SHA512

    cfb3ab41797b554a7cd4886ebf0d016454b75f0badb79bedfb10a9f58efadf84fdd1173997b1beb1aaa2125ffbad38cb3cd92a3841ff2211d94fe6b9a425bf91

  • C:\Program Files (x86)\SinBa\local\homeurl\urlchk.ini
    Filesize

    416B

    MD5

    188c71a92a23e7d4a58b8029bfdd1fb6

    SHA1

    c4375c3c24d84c377e38709882091609515a6e08

    SHA256

    cad90d3c8cb85b676d547c450bc3a6b5e361360ac737a9bdd63a3329bc1a7adf

    SHA512

    454d475136584f0db4a9e8f0405c7703fc10e3d1ae4e923ea44825926a37ec5c2a042c74ef4bc30a603108cfe9b86563a5b65de467e1c8ffffa8f067e610897d

  • C:\Program Files (x86)\SinBa\log4cxx.dll
    Filesize

    1.7MB

    MD5

    492a05366173f0afeb0fec192ea8e2bd

    SHA1

    c6e8defb221404f2abd01d40c1cdaf0650e1d326

    SHA256

    cf275f2d85691bebff24d3f2e31f43ceb9e3ae0c7a0a093388348f889699c65f

    SHA512

    ae3600c66a7d2f40aee1230639e1191693f2be5aedf6bb8ded89c029dff85411367b5175170281fbff6e66eb1b70708d6cc0e8d6d58e662419ca41afdf7a703c

  • C:\Program Files (x86)\SinBa\loginfo.properties
    Filesize

    642B

    MD5

    1f71c0bc2c9ee903c72d393e79a12457

    SHA1

    c0e4b8e57c617d520633cba7079a29e910a403b1

    SHA256

    00679b27cd02729e1b4803444d3adb4ef98fdad7cf3d0108885dc6ce77e325f4

    SHA512

    7cc8e8ee794b79e2f21c054faacda27608fd06392f44e6329c65dd8d834c002082a26a26400a5817a1465088b2443559a37963633934952865f4186b70fcdde8

  • C:\Program Files (x86)\SinBa\pthreadVC2.dll
    Filesize

    54KB

    MD5

    7812f0f73eda837e9353b3a433abc9a9

    SHA1

    210af5a3682af9df8585f4e88ac89e436de120f9

    SHA256

    bac4472990c1dc2f037019791bd18888e78a3ae86605f3aae86f812a4d7d4f60

    SHA512

    0af1c8d32eb43bbb58498ed60736c5eaeead1ec34b4b8558380479c64dc5ccb82cbf0a08867b817ff7807b4d96b0ef48fe37930cb780d87b83da9ef525a6299f

  • C:\Users\Admin\AppData\Local\Temp\nsy1131.tmp\ioSpecial.ini
    Filesize

    589B

    MD5

    0404612b8f3bc731cd4f5fea6ac531b3

    SHA1

    b5baa8388750055c80bcfb39bc98ad18e87a2ccf

    SHA256

    ad98361fde609c5dec982725f3bbe78860817d325c6e30694d350cbbb82f5d90

    SHA512

    3deb24405d9c03baad58cd780a8d29874c6e614c5a479784171364eacf2ad566979608ad55d86e428694457543a042e41ebaf7ed6ef0f241526184294e815b33

  • C:\Users\Admin\AppData\Local\Temp\nsy1131.tmp\ioSpecial.ini
    Filesize

    623B

    MD5

    ce8865a4c8c3fa0af8f8cc05364a8305

    SHA1

    b336f3c8181c1ab3e51d107aad6e6e62c167fd15

    SHA256

    b8d7830cdee4759f56db4012c63db0679ec99bf19549c8e437c1f94aa6736b48

    SHA512

    340ff093b730934cf6bc484313525773b84a1e39924d75393ab9f3fd503a791edaa059089124f2e26bea7ba6d445f6c5f5e099a4c2885668c67a6352027df656

  • \Program Files (x86)\SinBa\SinBa.exe
    Filesize

    1.4MB

    MD5

    53ca489ef79fec5ba6f6536c0e5ef1e7

    SHA1

    92c7d7756a63cab1746238bc222f59576ac1a635

    SHA256

    c35133597e1ebc8d78468700c79f8ae09f66df20bc8f9206caee0cd34f6586f7

    SHA512

    7eaebbf777a395d1f2590d1af0b7f2831a9833a3c3fd65d8e63491de9d96e3c78b7c3312d8ffff61a8fd354c530782c651a7881a107a982eef19b3c00c3ec034

  • \Users\Admin\AppData\Local\Temp\nsy1131.tmp\InstallOptions.dll
    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf