Analysis

  • max time kernel
    361s
  • max time network
    367s
  • platform
    windows7_x64
  • resource
    win7-20240319-en
  • resource tags

    arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2024 16:54

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:3016
    • 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:1592
  • C:\Windows\system32\efsui.exe
    efsui.exe /efs /keybackup
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2760

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\MSVCR100.dll
    Filesize

    636KB

    MD5

    61b5858349a4cd459e6b4feaa969fef6

    SHA1

    bfdf23335c7aade2c88ceaa2e533c9297075714a

    SHA256

    63c5816395771fa16e6ca0ea27099574fdfbe27b40cb1f107b7282bbbb99a678

    SHA512

    32c03e7920d532935787c5e55cafac68e2e78bede5925bf0c6456d3bea914e65465500acfea7929c4572d1580a7f12c1e2fd5ad131634bf135ab187be2632187

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

    1.0MB

    MD5

    e0e99f12c7f82f19d18db325fa95c26f

    SHA1

    e25e487b1ff8a212efa10441e8955c6c0379d7bb

    SHA256

    906d1b64cd7f4771b02ee5e10abc07f9e17ac4d2d6f613e32ab699829bfdd53f

    SHA512

    794552bf89b57e1eee2609c5df4bb014ea375c2d75d91d1ae02a069eb5d0531c872b98f8c4c0c25add528f2a9afc469477078af22a6b7f8160925bfdffe356bd

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

    1.4MB

    MD5

    b74a655d2972e2e3082103ba7e4cf8d5

    SHA1

    0343e0a687724910c242c057191aaa7435300fc0

    SHA256

    318fe2cb8f2fba671d06bfacda3733118bf310575fca0b3dcef70797ff3b8422

    SHA512

    b5373bccf4d2c9f52016f6e0cd6900e7fef1c86a604f000245ed7626b2c1da0ed8ab35daa55dadb41e5cc195727134073881e73283de228c37644dcdab353981

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

    282KB

    MD5

    cb96aea920c9b28d6e1d314211c42048

    SHA1

    23fdb500d960252712696da68a86c039daefe4ec

    SHA256

    e1a8d0466c2ccbc6a7b168bc14fe22dde2064466ad981b595120f8294de3e729

    SHA512

    bb53ac54f1d3835c49076e1ba0f27156bb1152c197761baeb41f7d314664962cdf11078d89b375d1b67ac7daadad5a0d598a02f531a2315f615e9056831412a3

  • 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

    1933ee95b4d9b67297f13330152f606e

    SHA1

    724abe17ffedf6caa6f4ab3aa892c6395d619184

    SHA256

    203f299b2db55a848a6cea5dc9041325b451df0cb24b1d54d7e8000a95ea5500

    SHA512

    76149190fcc5f14706ead0bf7fc8360fa517c2450a9c3c883c14d604420a7d740692ef5ba508d451df19f6c698eefc7bace1db4ec45dbcb9f9e063526c9ca0c0

  • 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

    127B

    MD5

    b29e2cbfa269c80bc8ae1f5c9df7f787

    SHA1

    22b9f84793f2e56a116822943ba31419ef728730

    SHA256

    8b9a18f8ab7cc377151deb7ddf3ff83435cd697aae1283dc2fa50e5298e3e1bc

    SHA512

    c64c7881b0c62b63ad92629772f070c0d4c2b99b97d303f4e294ab14061e8d421d24c5440615b5cd720a861854984a1e8b919fb7dae911e265db105cbe9255f5

  • 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\urlchk.ini
    Filesize

    92B

    MD5

    e36c9f2f02078a73cfc83634f7eff8df

    SHA1

    2a450bb4696d13cbd2f7813fbe9825a9cdbebaee

    SHA256

    6dde63a1882f7e8aeaca623bfe518e88210177045b9728c0e5d8f4c747fabf59

    SHA512

    db0994441883e7c1743e9eb0ee5b3794d3cd15b1253fd1004f080ea6d831f85b910169a6422189816f776a76aa162edbc57ad9e681e2af03e41bf952a15c4b89

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

    726KB

    MD5

    5734c07db382f6edf5b0f542d0fd3da3

    SHA1

    86d64cd44832f0b9a6954ffc47dc0847e6d2e2c7

    SHA256

    46b745734f03943c373ba6f2a74d67cd78ed735df94cf4d7eaea507eb405bf4c

    SHA512

    4d03e7a3ced8f2a5d806cb221a17c2d2b53fc6e94ddb34ba789585a6941bfa8a741ddcd47145cc37e5bf693c4bb7ea30c79385a708cb4503618e98c7ba47ff37

  • 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\nsd5284.tmp\ioSpecial.ini
    Filesize

    610B

    MD5

    47c6c53bee32c8321de4099076c7f149

    SHA1

    044de682e65fcfeffea12d1901f244f1e442d40f

    SHA256

    6fb8ccb4a6673a1b42d1d58ad853fb97974156d4dceddaa02985454338131bb8

    SHA512

    4154c7d69437dd3673da409ee1fc5c9da0568cee9e84a56b409c0e8eaf2721041be31220fd4dc03da01fdea8ccdc7db2eb8e203d154fc4481d37efa37e793356

  • C:\Users\Admin\AppData\Local\Temp\nsd5284.tmp\ioSpecial.ini
    Filesize

    589B

    MD5

    aab5ea78634a1a7a8bc6e59074fc4e6e

    SHA1

    4c27b8430277b013cc411d23382d1ecd9591ed39

    SHA256

    04b433018bd71ba29392a9afcd88ca6fe1256fa17fb3be5ebc019c8b954ccf04

    SHA512

    e71ef1224f9dbcccf481ec441c6044f46abdcffb0e024e668e9799368e10f6abaf184aeb01ccc0366c4ce7ede5facff88522b3104bea93ad9a0c0defb6d843cc

  • C:\Users\Admin\AppData\Local\Temp\nsd5284.tmp\ioSpecial.ini
    Filesize

    623B

    MD5

    ec3fbccd257003f6ad6fb7adbb2e1c79

    SHA1

    ac386dc5f72ba19fffab567d36182cd3a5cc31dc

    SHA256

    7af7a56d8bf4af94b2bccd04c7e8d350a3b0f146cd306f96cdd2de1225cb161a

    SHA512

    efebe9b93b61d129f58ef199c9ead47b06910f572b912622fb596e66e023c47520a2b62b6fd976ee7b6957524c9cc433d2062a9ed56bba07b5cc3940d61b7e89

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

    455KB

    MD5

    4b6ea9bc09ed57c8340ffa9a87c8e83a

    SHA1

    42cd565baba75364ff99390b64e4527c874a03f6

    SHA256

    d9d25eb59c2690de8c7d5c89fbb352712d2fbc1f026778ad56244eb11ec7e652

    SHA512

    b394e836f9b105b18f25436312c83b9530588189dcbcbacea85b170765d7e6abdbc256d001a295dc797732c9576cdad03fcebad9cb1ea76bbc8bf1f087b0afe4

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

    1.4MB

    MD5

    53ca489ef79fec5ba6f6536c0e5ef1e7

    SHA1

    92c7d7756a63cab1746238bc222f59576ac1a635

    SHA256

    c35133597e1ebc8d78468700c79f8ae09f66df20bc8f9206caee0cd34f6586f7

    SHA512

    7eaebbf777a395d1f2590d1af0b7f2831a9833a3c3fd65d8e63491de9d96e3c78b7c3312d8ffff61a8fd354c530782c651a7881a107a982eef19b3c00c3ec034

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

    368KB

    MD5

    6b18ebc737dd8a59b56b810fd722ad93

    SHA1

    046e19cc875da9c354abec9fc2c89d450962819b

    SHA256

    0bc56c86524a51b86c27ee4485e3b2c8b922af598af718c0194b86df1ee74003

    SHA512

    d21b5c645f0dd70f9bfe7fa1ecffe041c0e5873d325ec5f53a2423fa256c417a16907d5b55ef5422a4b5f4ab6b438f4ea5976863fe1a3e3ce70be3f487c691c2

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

    392KB

    MD5

    18290da3457e9dd7a30d859480d6d953

    SHA1

    e9ef2ccaaf84f04fce0cc739592e465e672a841f

    SHA256

    7308447e425694d6379e13acf2cb73d279b79248d2efa28946b4d157ee41440e

    SHA512

    104e94a7d2ea4d6bdaf7d7d1046c345f773c47b08ed951c8cac23c98e04d20844b6f66d775db8c47a615f711e0c7ccc7bf04a6c69082e7f2f1b02d5e1704266c

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

    480KB

    MD5

    42c1afdf4e82dc46e6469c6e8af785e9

    SHA1

    a27dd65f5f12e0860fd0c0236d8b2469e39d96cf

    SHA256

    f916de52f23a05139e0b875a5cf4d38de5667cb37092831d16859b82a94fe9d7

    SHA512

    c1486fa30d23939ffd8b5b3ed620424d36cfab2bc5d75afec6909dd3b9129b0e78ba063e9602e6610b56863612c677f1d195948a5225bce5d33a141bd3b84664

  • \Program Files (x86)\SinBa\msvcr100.dll
    Filesize

    357KB

    MD5

    688dc046c1d62aae4707982a68eedf71

    SHA1

    3a9895a3a6b404f899d902e06d684a21850aa870

    SHA256

    2d867645b1090a486aacd2c03d44e50ec800b9ca861822a0a69123be6b6c6947

    SHA512

    bf8b40d0f800e6da9e49918097a1765a4bc83745dc960c3c49dfafda5bdcde15415215689b6abec10a9dbdc073084fcb6d823dd04abb8cfac991c14f7b97bfee

  • \Users\Admin\AppData\Local\Temp\nsd5284.tmp\InstallOptions.dll
    Filesize

    14KB

    MD5

    325b008aec81e5aaa57096f05d4212b5

    SHA1

    27a2d89747a20305b6518438eff5b9f57f7df5c3

    SHA256

    c9cd5c9609e70005926ae5171726a4142ffbcccc771d307efcd195dafc1e6b4b

    SHA512

    18362b3aee529a27e85cc087627ecf6e2d21196d725f499c4a185cb3a380999f43ff1833a8ebec3f5ba1d3a113ef83185770e663854121f2d8b885790115afdf