Analysis

  • max time kernel
    131s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    18-04-2021 09:38

General

  • Target

    klok.exe

  • Size

    6.0MB

  • MD5

    f8206a65ddbdaf77b5f8be6599081cff

  • SHA1

    c9929afc9c726e69a3aaaebb1810a93877d99e69

  • SHA256

    baef74c9dbf470ffbe0261de0843db69a6037c167cf003f5703b905d3ad6c3a3

  • SHA512

    ffedbbe897519d928586c1b09e9c7d4930ad6d98de36093d27f903c5b0572ddb10c065c3a05e13829cfe93932bb77f62812c3f99553c0a84f7a8a863f575deb6

Malware Config

Extracted

Family

danabot

Version

1827

Botnet

3

C2

23.106.123.185:443

192.210.198.12:443

23.254.225.170:443

23.106.123.141:443

Attributes
  • embedded_hash

    AEF96B4D339B580ABB737F203C2D0F52

rsa_pubkey.plain
rsa_pubkey.plain

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Blocklisted process makes network request 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\klok.exe
    "C:\Users\Admin\AppData\Local\Temp\klok.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:296
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL,Z C:\Users\Admin\AppData\Local\Temp\klok.exe
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\SysWOW64\RUNDLL32.EXE
        C:\Windows\system32\RUNDLL32.EXE C:\Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL,Ogkx
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Drops desktop.ini file(s)
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpD807.tmp.ps1"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1612
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Executionpolicy bypass -File "C:\Users\Admin\AppData\Local\Temp\tmpF662.tmp.ps1"
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Windows\SysWOW64\nslookup.exe
            "C:\Windows\system32\nslookup.exe" -type=any localhost
            5⤵
              PID:1352
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
            4⤵
              PID:1668
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
              4⤵
                PID:1288

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Credential Access

        Credentials in Files

        1
        T1081

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        1
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1602f747-c1a3-4345-8dec-4dcb8b1f72e5
          MD5

          02ff38ac870de39782aeee04d7b48231

          SHA1

          0390d39fa216c9b0ecdb38238304e518fb2b5095

          SHA256

          fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

          SHA512

          24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2d686436-375c-4ee1-bd4a-9e44ccd248ba
          MD5

          75a8da7754349b38d64c87c938545b1b

          SHA1

          5c28c257d51f1c1587e29164cc03ea880c21b417

          SHA256

          bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

          SHA512

          798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4375eeb7-a65d-43f1-a616-02c5ad6c5370
          MD5

          be4d72095faf84233ac17b94744f7084

          SHA1

          cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

          SHA256

          b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

          SHA512

          43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b
          MD5

          df44874327d79bd75e4264cb8dc01811

          SHA1

          1396b06debed65ea93c24998d244edebd3c0209d

          SHA256

          55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

          SHA512

          95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_b3b6fff8-e141-43af-bd2a-269db93b7a80
          MD5

          e36e413334d4226cfecaebdd90e31c04

          SHA1

          a70ab4d400261150d6ce6798cadc6e2539ec84c7

          SHA256

          fa3e9bdb2278858c97da8478ed573db4a6642363775b1530ab0b24571e2c0f4a

          SHA512

          f2cd799769189ca59190fee5b1a44f0a7ead22874763291462fbe86865cdba5ff2854279a0d918b3769ec4d8f4e9198b5ac4f30dc3325386da5b73e18af2ca63

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bc2fe8ee-69c0-48ce-8821-1fab80ab4eeb
          MD5

          597009ea0430a463753e0f5b1d1a249e

          SHA1

          4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

          SHA256

          3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

          SHA512

          5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fa12b0a1-3d6a-4bab-a74a-253a75ca0598
          MD5

          5e3c7184a75d42dda1a83606a45001d8

          SHA1

          94ca15637721d88f30eb4b6220b805c5be0360ed

          SHA256

          8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

          SHA512

          fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c
          MD5

          a725bb9fafcf91f3c6b7861a2bde6db2

          SHA1

          8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

          SHA256

          51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

          SHA512

          1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c
          MD5

          a725bb9fafcf91f3c6b7861a2bde6db2

          SHA1

          8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

          SHA256

          51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

          SHA512

          1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fe80cd26-0cf7-4e38-9884-6dab53b04ca9
          MD5

          b6d38f250ccc9003dd70efd3b778117f

          SHA1

          d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

          SHA256

          4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

          SHA512

          67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
          MD5

          0b3764ead7f3804646b2462f93bebf76

          SHA1

          15d034795fd2e97667e5497184da5054bc3a3829

          SHA256

          fa262fc7e24c81d7d1c5ddd3eaeedcb69d9e2c77a1ba931db219e3e86fc80ca0

          SHA512

          c6751a99f1fd70299f6e82854f1f4d255374bf29ce08577c2605b83d0445ecab56e629c2fce00c06dc504232e736203164de52dd631378b22f3f8e8d1e5f28c7

        • C:\Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • C:\Users\Admin\AppData\Local\Temp\tmpD807.tmp.ps1
          MD5

          77b9ea49d1b80b0959242f357687bace

          SHA1

          33fb12b6d76e623c35290a45b54fbc4225c96a4f

          SHA256

          0577c5271db8fbd1290ff4508fa0ff08d442730ddf42bbfc1a11ba4ad0ea2ebf

          SHA512

          58fb919d052b336428da9b550e91c73c1a712fd9a0ff9d3089460683dcaf53098c6c9ea77803ad439be32d3794c6207ce0987230797d883f0bfe2a432296737d

        • C:\Users\Admin\AppData\Local\Temp\tmpF662.tmp.ps1
          MD5

          d718c470a6380fb3a3eba53a39ef9f9d

          SHA1

          73c78a62662e0cea240095bfc5a13392d2edf8e4

          SHA256

          ea951394b1960f467d6bcc21b411faa8bb36dbfd58fb4878127b96178aa41138

          SHA512

          9f187da240bb2bebe05bb24051fb742c3c0aa742785bee038c47ada8cf6cbdfa2630e7a0d12fb3acdc34e41eb6c5f6b59fb315921d246d41004ae3cebda73bca

        • C:\Users\Admin\AppData\Local\Temp\tmpF663.tmp
          MD5

          1860260b2697808b80802352fe324782

          SHA1

          f07b4cb6a8133d8dd942fc285d63cb3ce5a1ed6b

          SHA256

          0c4bb6ae7726faa47aef8459bcf37bf9ca16f0b93fd52790932adaf7845d1fb1

          SHA512

          d9fd458e2fe871e93199d7f3783133ded898d824024d9525e8c9af2af31892b13f3fb147d3bfda7dfd7659b7072f5cd1d6c3ebfe2dbf5893afd00e59a96aa94f

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
          MD5

          d58aa5e28fc2614b62176a43a63c1235

          SHA1

          06d49d8c4facdc9f27e051670f1a53e2381cda3b

          SHA256

          2bdcf2b2c354a1b6e9ae183a1b915c0be48dfd50f8174e0f611f274655d6d823

          SHA512

          840dd36ba2defcaa1fa16a2a5e4c5c5af121054258c3d80bb8c7a41daa374858c2815d28223cb48811294595a136801608087749e3b96a1edecb2d691e98d9e4

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • \Users\Admin\AppData\Local\Temp\KLOKEX~1.DLL
          MD5

          c82a4b861572d2434ab145431c3ce718

          SHA1

          3c53a19110c1d0e5bbabfb33d90830f3458bfd63

          SHA256

          ceb45d4c7e40229621d326faf8ff2de10c105130d0a4cc5427c28616ec270cf6

          SHA512

          c6e5531f27f2790bdbeb282c07cb4f26900e93ff6676397a5784cd6730ef9b1c4c8921d70539212eb96c177c72de4fcc89c05f3861f06f626d9ed7f5ad99fdb7

        • memory/296-60-0x00000000012B0000-0x00000000019A6000-memory.dmp
          Filesize

          7.0MB

        • memory/296-59-0x00000000757E1000-0x00000000757E3000-memory.dmp
          Filesize

          8KB

        • memory/296-62-0x0000000000220000-0x0000000000221000-memory.dmp
          Filesize

          4KB

        • memory/296-61-0x0000000000400000-0x0000000000B01000-memory.dmp
          Filesize

          7.0MB

        • memory/1288-134-0x0000000000000000-mapping.dmp
        • memory/1352-131-0x0000000000000000-mapping.dmp
        • memory/1428-72-0x0000000002880000-0x0000000002881000-memory.dmp
          Filesize

          4KB

        • memory/1428-63-0x0000000000000000-mapping.dmp
        • memory/1428-78-0x0000000000160000-0x0000000000161000-memory.dmp
          Filesize

          4KB

        • memory/1428-71-0x0000000002BF1000-0x0000000003250000-memory.dmp
          Filesize

          6.4MB

        • memory/1428-70-0x0000000002180000-0x000000000273A000-memory.dmp
          Filesize

          5.7MB

        • memory/1612-109-0x000000007EF30000-0x000000007EF31000-memory.dmp
          Filesize

          4KB

        • memory/1612-83-0x0000000000000000-mapping.dmp
        • memory/1612-94-0x00000000056A0000-0x00000000056A1000-memory.dmp
          Filesize

          4KB

        • memory/1612-100-0x0000000006370000-0x0000000006371000-memory.dmp
          Filesize

          4KB

        • memory/1612-85-0x0000000000970000-0x0000000000971000-memory.dmp
          Filesize

          4KB

        • memory/1612-99-0x00000000060F0000-0x00000000060F1000-memory.dmp
          Filesize

          4KB

        • memory/1612-88-0x00000000049B2000-0x00000000049B3000-memory.dmp
          Filesize

          4KB

        • memory/1612-110-0x0000000006400000-0x0000000006401000-memory.dmp
          Filesize

          4KB

        • memory/1612-107-0x00000000061F0000-0x00000000061F1000-memory.dmp
          Filesize

          4KB

        • memory/1612-90-0x0000000004950000-0x0000000004951000-memory.dmp
          Filesize

          4KB

        • memory/1612-87-0x00000000049B0000-0x00000000049B1000-memory.dmp
          Filesize

          4KB

        • memory/1612-89-0x0000000001170000-0x0000000001171000-memory.dmp
          Filesize

          4KB

        • memory/1612-86-0x00000000049F0000-0x00000000049F1000-memory.dmp
          Filesize

          4KB

        • memory/1668-133-0x0000000000000000-mapping.dmp
        • memory/1724-73-0x0000000000000000-mapping.dmp
        • memory/1724-80-0x00000000021D0000-0x000000000278A000-memory.dmp
          Filesize

          5.7MB

        • memory/1724-81-0x0000000002C11000-0x0000000003270000-memory.dmp
          Filesize

          6.4MB

        • memory/1724-82-0x0000000002850000-0x0000000002851000-memory.dmp
          Filesize

          4KB

        • memory/2016-118-0x0000000004930000-0x0000000004931000-memory.dmp
          Filesize

          4KB

        • memory/2016-119-0x0000000004932000-0x0000000004933000-memory.dmp
          Filesize

          4KB

        • memory/2016-117-0x0000000004910000-0x0000000004911000-memory.dmp
          Filesize

          4KB

        • memory/2016-116-0x0000000002650000-0x0000000002651000-memory.dmp
          Filesize

          4KB

        • memory/2016-115-0x0000000004970000-0x0000000004971000-memory.dmp
          Filesize

          4KB

        • memory/2016-130-0x00000000060C0000-0x00000000060C1000-memory.dmp
          Filesize

          4KB

        • memory/2016-114-0x0000000000F50000-0x0000000000F51000-memory.dmp
          Filesize

          4KB

        • memory/2016-111-0x0000000000000000-mapping.dmp