Overview

overview

8

Static

static

3

numuki-bro...up.exe

windows7-x64

7

numuki-bro...up.exe

windows10-2004-x64

8

$PLUGINSDIR/INetC.dll

windows7-x64

3

$PLUGINSDIR/INetC.dll

windows10-2004-x64

3

$PLUGINSDI...er.dll

windows7-x64

3

$PLUGINSDI...er.dll

windows10-2004-x64

3

$PLUGINSDI...ls.dll

windows7-x64

3

$PLUGINSDI...ls.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...ll.dll

windows7-x64

3

$PLUGINSDI...ll.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows7-x64

3

$PLUGINSDI...ec.dll

windows10-2004-x64

3

$PLUGINSDI...ss.dll

windows7-x64

3

$PLUGINSDI...ss.dll

windows10-2004-x64

3

$PLUGINSDI...7z.dll

windows7-x64

3

$PLUGINSDI...7z.dll

windows10-2004-x64

3

Uninstall ...er.exe

windows7-x64

7

Uninstall ...er.exe

windows10-2004-x64

7

$PLUGINSDI...ls.dll

windows7-x64

3

$PLUGINSDI...ls.dll

windows10-2004-x64

3

$PLUGINSDI...em.dll

windows7-x64

3

$PLUGINSDI...em.dll

windows10-2004-x64

3

$PLUGINSDI...ll.dll

windows7-x64

3

$PLUGINSDI...ll.dll

windows10-2004-x64

3

$PLUGINSDI...ec.dll

windows7-x64

3

$PLUGINSDI...ec.dll

windows10-2004-x64

3

$PLUGINSDI...ss.dll

windows7-x64

3

$PLUGINSDI...ss.dll

windows10-2004-x64

3

Sharing

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General

  • Target

    numuki-browser-web-setup.exe

  • Size

    645KB

  • Sample

    240824-2tpymawbnj

  • MD5

    d5597d608723bc160bdef0be231c4df0

  • SHA1

    2f1b489918025bf7f7e6e5e076aebb0d3e3c17fd

  • SHA256

    2fb92cd068f5f815efed191c0f238889ef0fbe015e11c7449ee5d083c0e133d7

  • SHA512

    d841cef9442422781e151eda8d003412ba8d2dd7b43558a45134eefc44520fd7eb1b6c0290ff81bd5f9ac787418a9baf46846ed8951ef582105d0351196ad8e6

  • SSDEEP

    12288:Jgb1A7RKaDPNKT1zH3ptaR1sDfOQSvJqFZ6zMg1pPk:Jgb1iMaDu173pG1szLSvJwynzPk

Score
8/10
defense_evasiondiscoveryexecution

Malware Config

Targets

    • Target

      numuki-browser-web-setup.exe

    • Size

      645KB

    • MD5

      d5597d608723bc160bdef0be231c4df0

    • SHA1

      2f1b489918025bf7f7e6e5e076aebb0d3e3c17fd

    • SHA256

      2fb92cd068f5f815efed191c0f238889ef0fbe015e11c7449ee5d083c0e133d7

    • SHA512

      d841cef9442422781e151eda8d003412ba8d2dd7b43558a45134eefc44520fd7eb1b6c0290ff81bd5f9ac787418a9baf46846ed8951ef582105d0351196ad8e6

    • SSDEEP

      12288:Jgb1A7RKaDPNKT1zH3ptaR1sDfOQSvJqFZ6zMg1pPk:Jgb1iMaDu173pG1szLSvJwynzPk

    Score
    8/10
    discoverydefense_evasionexecution

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

      defense_evasion
    behavioral1behavioral2

    • Target

      $PLUGINSDIR/INetC.dll

    • Size

      238KB

    • MD5

      38caa11a462b16538e0a3daeb2fc0eaf

    • SHA1

      c22a190b83f4b6dc0d6a44b98eac1a89a78de55c

    • SHA256

      ed04a4823f221e9197b8f3c3da1d6859ff5b176185bde2f1c923a442516c810a

    • SHA512

      777135e05e908ac26bfce0a9c425b57f7132c1cdb0969bbb6ef625748c868860602bacc633c61cab36d0375b94b6bcfbd8bd8c7fa781495ef7332e362f8d44d1

    • SSDEEP

      3072:hD2ekNFXiQraqoDDfbrH6ZgxkzStPpwGxqeujXj5Bif/Pa0L:hD2vhaqoDfb6mxk2LqHXj3if/Pa

    Score
    3/10
    discovery
    behavioral3behavioral4

    • Target

      $PLUGINSDIR/SpiderBanner.dll

    • Size

      9KB

    • MD5

      17309e33b596ba3a5693b4d3e85cf8d7

    • SHA1

      7d361836cf53df42021c7f2b148aec9458818c01

    • SHA256

      996a259e53ca18b89ec36d038c40148957c978c0fd600a268497d4c92f882a93

    • SHA512

      1abac3ce4f2d5e4a635162e16cf9125e059ba1539f70086c2d71cd00d41a6e2a54d468e6f37792e55a822d7082fb388b8dfecc79b59226bbb047b7d28d44d298

    • SSDEEP

      192:5lkE3uqRI1y7/xcfK4PRef6gQzJyY1rpKlVrw:5lkMBI1y7UKcef6XzJrpKY

    Score
    3/10
    discovery
    behavioral5behavioral6

    • Target

      $PLUGINSDIR/StdUtils.dll

    • Size

      100KB

    • MD5

      c6a6e03f77c313b267498515488c5740

    • SHA1

      3d49fc2784b9450962ed6b82b46e9c3c957d7c15

    • SHA256

      b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

    • SHA512

      9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

    • SSDEEP

      3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

    Score
    3/10
    discovery
    behavioral7behavioral8

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      0d7ad4f45dc6f5aa87f606d0331c6901

    • SHA1

      48df0911f0484cbe2a8cdd5362140b63c41ee457

    • SHA256

      3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    • SHA512

      c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

    • SSDEEP

      192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6

    Score
    3/10
    discovery
    behavioral10behavioral9

    • Target

      $PLUGINSDIR/WinShell.dll

    • Size

      3KB

    • MD5

      1cc7c37b7e0c8cd8bf04b6cc283e1e56

    • SHA1

      0b9519763be6625bd5abce175dcc59c96d100d4c

    • SHA256

      9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

    • SHA512

      7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

    Score
    3/10
    discovery
    behavioral11behavioral12

    • Target

      $PLUGINSDIR/nsExec.dll

    • Size

      6KB

    • MD5

      ec0504e6b8a11d5aad43b296beeb84b2

    • SHA1

      91b5ce085130c8c7194d66b2439ec9e1c206497c

    • SHA256

      5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

    • SHA512

      3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

    • SSDEEP

      96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr

    Score
    3/10
    discovery
    behavioral13behavioral14

    • Target

      $PLUGINSDIR/nsProcess.dll

    • Size

      4KB

    • MD5

      f0438a894f3a7e01a4aae8d1b5dd0289

    • SHA1

      b058e3fcfb7b550041da16bf10d8837024c38bf6

    • SHA256

      30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11

    • SHA512

      f91fcea19cbddf8086affcb63fe599dc2b36351fc81ac144f58a80a524043ddeaa3943f36c86ebae45dd82e8faf622ea7b7c9b776e74c54b93df2963cfe66cc7

    • SSDEEP

      48:Sz4joMeH+Iwdf8Rom/L+rOnnk5/OCnXeAdbdOAa4GPI+CJ87eILzlq7gthwIsEQW:64c/eFdfS/SSnkxNa4G+ueqPuCtGsj

    Score
    3/10
    discovery
    behavioral15behavioral16

    • Target

      $PLUGINSDIR/nsis7z.dll

    • Size

      424KB

    • MD5

      80e44ce4895304c6a3a831310fbf8cd0

    • SHA1

      36bd49ae21c460be5753a904b4501f1abca53508

    • SHA256

      b393f05e8ff919ef071181050e1873c9a776e1a0ae8329aefff7007d0cadf592

    • SHA512

      c8ba7b1f9113ead23e993e74a48c4427ae3562c1f6d9910b2bbe6806c9107cf7d94bc7d204613e4743d0cd869e00dafd4fb54aad1e8adb69c553f3b9e5bc64df

    • SSDEEP

      6144:aUWQQ5O3fz0NG3ucDaEUTWfk+ZA0NrCL/k+uyoyBOX1okfW7w+Pfzqibckl:an5QEG39fPAkrE4yrBOXDfaNbck

    Score
    3/10
    discovery
    behavioral17behavioral18

    • Target

      Uninstall NuMuKi Browser.exe

    • Size

      157KB

    • MD5

      876865bfa7fdc640a2fd065ddda51330

    • SHA1

      a225d7ca79f797fde27a6a24f969e1958e774155

    • SHA256

      0e11cb2fbb92c1764a58740a804c4103a9b7b26e94a38802ebb946483b5a53ea

    • SHA512

      b1e6e117098684724471706c9c787048f97230d049b060f755945764864f3d225eb0ea84ad9939ccca95f4e9f0d7d971f81942a06cacd8185cedec2a4276052a

    • SSDEEP

      3072:tn77v00hEoDEtau6Y9KC1pvCx6F2iaH2tvhOEA1RJCir86SrSrvrIa3dXR:t740IlEApaxUs2t0EyL+tatXR

    Score
    7/10
    discovery

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral19behavioral20

    • Target

      $PLUGINSDIR/StdUtils.dll

    • Size

      100KB

    • MD5

      c6a6e03f77c313b267498515488c5740

    • SHA1

      3d49fc2784b9450962ed6b82b46e9c3c957d7c15

    • SHA256

      b72e9013a6204e9f01076dc38dabbf30870d44dfc66962adbf73619d4331601e

    • SHA512

      9870c5879f7b72836805088079ad5bbafcb59fc3d9127f2160d4ec3d6e88d3cc8ebe5a9f5d20a4720fe6407c1336ef10f33b2b9621bc587e930d4cbacf337803

    • SSDEEP

      3072:WNuZmJ9TDP3ahD2TF7Rq9cJNPhF9vyHf:WNuZ81zaAFHhF9v

    Score
    3/10
    discovery
    behavioral21behavioral22

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      0d7ad4f45dc6f5aa87f606d0331c6901

    • SHA1

      48df0911f0484cbe2a8cdd5362140b63c41ee457

    • SHA256

      3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

    • SHA512

      c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

    • SSDEEP

      192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6

    Score
    3/10
    discovery
    behavioral23behavioral24

    • Target

      $PLUGINSDIR/WinShell.dll

    • Size

      3KB

    • MD5

      1cc7c37b7e0c8cd8bf04b6cc283e1e56

    • SHA1

      0b9519763be6625bd5abce175dcc59c96d100d4c

    • SHA256

      9be85b986ea66a6997dde658abe82b3147ed2a1a3dcb784bb5176f41d22815a6

    • SHA512

      7acf7f8e68aa6066b59ca9f2ae2e67997e6b347bc08eb788d2a119b3295c844b5b9606757168e8d2fbd61c2cda367bf80e9e48c9a52c28d5a7a00464bfd2048f

    Score
    3/10
    discovery
    behavioral25behavioral26

    • Target

      $PLUGINSDIR/nsExec.dll

    • Size

      6KB

    • MD5

      ec0504e6b8a11d5aad43b296beeb84b2

    • SHA1

      91b5ce085130c8c7194d66b2439ec9e1c206497c

    • SHA256

      5d9ceb1ce5f35aea5f9e5a0c0edeeec04dfefe0c77890c80c70e98209b58b962

    • SHA512

      3f918f1b47e8a919cbe51eb17dc30acc8cfc18e743a1bae5b787d0db7d26038dc1210be98bf5ba3be8d6ed896dbbd7ac3d13e66454a98b2a38c7e69dad30bb57

    • SSDEEP

      96:YjHFiKaoggCtJzTlKXb0tbo68qD853Ns7GgmkNq3m+s:JbogRtJzTlNR8qD85uGgmkNr

    Score
    3/10
    discovery
    behavioral27behavioral28

    • Target

      $PLUGINSDIR/nsProcess.dll

    • Size

      4KB

    • MD5

      f0438a894f3a7e01a4aae8d1b5dd0289

    • SHA1

      b058e3fcfb7b550041da16bf10d8837024c38bf6

    • SHA256

      30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11

    • SHA512

      f91fcea19cbddf8086affcb63fe599dc2b36351fc81ac144f58a80a524043ddeaa3943f36c86ebae45dd82e8faf622ea7b7c9b776e74c54b93df2963cfe66cc7

    • SSDEEP

      48:Sz4joMeH+Iwdf8Rom/L+rOnnk5/OCnXeAdbdOAa4GPI+CJ87eILzlq7gthwIsEQW:64c/eFdfS/SSnkxNa4G+ueqPuCtGsj

    Score
    3/10
    discovery
    behavioral29behavioral30

MITRE ATT&CK Enterprise v15

Tasks

static1

Score
3/10

behavioral1

discovery
Score
7/10

behavioral2

defense_evasiondiscoveryexecution
Score
8/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discovery
Score
3/10

behavioral6

discovery
Score
3/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

discovery
Score
3/10

behavioral10

discovery
Score
3/10

behavioral11

discovery
Score
3/10

behavioral12

discovery
Score
3/10

behavioral13

discovery
Score
3/10

behavioral14

discovery
Score
3/10

behavioral15

discovery
Score
3/10

behavioral16

discovery
Score
3/10

behavioral17

discovery
Score
3/10

behavioral18

discovery
Score
3/10

behavioral19

discovery
Score
7/10

behavioral20

discovery
Score
7/10

behavioral21

discovery
Score
3/10

behavioral22

discovery
Score
3/10

behavioral23

discovery
Score
3/10

behavioral24

discovery
Score
3/10

behavioral25

discovery
Score
3/10

behavioral26

discovery
Score
3/10

behavioral27

discovery
Score
3/10

behavioral28

discovery
Score
3/10

behavioral29

discovery
Score
3/10

behavioral30

discovery
Score
3/10