Analysis

  • max time kernel
    94s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    07-01-2022 17:29

General

  • Target

    e69353b185a7f1fe20ea84f15f75e4aa11337aa39fed08c119c60780822849fe.exe

  • Size

    2.7MB

  • MD5

    dee78a613440b0750785f5420dac9d40

  • SHA1

    b99176834f913890adcc1bc9fbb90262ab4483d5

  • SHA256

    e69353b185a7f1fe20ea84f15f75e4aa11337aa39fed08c119c60780822849fe

  • SHA512

    26e37049fccc4b1fdbc2962c09d706c5dbfe362538b450ef8c21b11f3786c276389b08511fefb45a004656c123ad6151030266f3df7160e92ec4d7f1c937b906

Malware Config

Extracted

Family

cryptbot

C2

zyoenm52.top

morlse05.top

Attributes
  • payload_url

    http://yapome07.top/download.php?file=combir.exe

Signatures

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 6 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 16 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e69353b185a7f1fe20ea84f15f75e4aa11337aa39fed08c119c60780822849fe.exe
    "C:\Users\Admin\AppData\Local\Temp\e69353b185a7f1fe20ea84f15f75e4aa11337aa39fed08c119c60780822849fe.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:380
    • C:\Users\Admin\AppData\Local\Temp\File.exe
      "C:\Users\Admin\AppData\Local\Temp\File.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2972
      • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
        "C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        PID:1368
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\e69353b185a7f1fe20ea84f15f75e4aa11337aa39fed08c119c60780822849fe.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1052
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:3292

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    MD5

    13ec5227fe52bcf2fc8ca6b1dcc07641

    SHA1

    21a546771c1acdde48a8be21081ce0ae1e376bfb

    SHA256

    60c546941d7f705156881e6776c482c50f133d54ba520436291695fd39bff8bb

    SHA512

    bcd479d71b5f7a8a294d647f66ba2c7670c39270142bb86cf96a8ffb97a7d5dcefb654c29c926fd2f43917a7da9ca11215012e5a109aad6062ef9e9e65355928

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    MD5

    13ec5227fe52bcf2fc8ca6b1dcc07641

    SHA1

    21a546771c1acdde48a8be21081ce0ae1e376bfb

    SHA256

    60c546941d7f705156881e6776c482c50f133d54ba520436291695fd39bff8bb

    SHA512

    bcd479d71b5f7a8a294d647f66ba2c7670c39270142bb86cf96a8ffb97a7d5dcefb654c29c926fd2f43917a7da9ca11215012e5a109aad6062ef9e9e65355928

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\QCMPLA~1.ZIP
    MD5

    2d4339874666d5e3c1972b192ee0d809

    SHA1

    a10cd066d8c138e2809d66d59b78b225d31cdb8f

    SHA256

    23ee8705c62194b8ea2166717dee861542deb7ef1f08184de3edbc6abb0946d8

    SHA512

    c6dc04145c723dfe0d0ecbf2557385fdf7336248d3dda9edaed1d1919e4df14b0ae2485f855f104df743c64477360ffaa7bb54a0213ee1f9d68af9d40af28dd9

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\QXWYED~1.ZIP
    MD5

    c8b4c80a3b127d66b176bc7036b207f7

    SHA1

    0f441b05d82b9dec60f1308227d78d8a74807b36

    SHA256

    82e915cda6ca692283ae761067aa83ae15aeb3cf9f76e5c0b97722866b46ba17

    SHA512

    56ca594ed49c9dbe33fee74752f7e50479c2f4f206b5dd63809b09ad5fa89ad740dd8ef4a43bb5414d855b945a3020e9b015f1d266052d9bd430970240600465

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_Chrome\DEFAUL~1.BIN
    MD5

    09500b419541e759ce53d87e324fe8fc

    SHA1

    4b882732508d2fc28536f8281c3b58777720c7da

    SHA256

    f80e7db7d3a06c87f03f5d0a9c7ab592ef05bc4fa5a8ab65c318c8455bd94476

    SHA512

    45e04f6283559638be00bffaf1a52a52a6998f835d5d40f756806a2323623074cb7ee9f802f4eba7d7523ccf3170f8986f89349ffbc1f2514ce25fdae0114fde

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_Chrome\DEFAUL~1.DB
    MD5

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_Chrome\DEFAUL~2.DB
    MD5

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_Chrome\DEFAUL~3.DB
    MD5

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_INFOR~1.TXT
    MD5

    7c63b91119715c60ec69816dfc0f8d04

    SHA1

    80310b97915ab0ed962914cf69eca1355b36dffa

    SHA256

    fc5c0d8d667f76f66bafa76ddf369a01d2476020a82ca54da2df6b6efe7743af

    SHA512

    f78d9d89183fd09e34ad5d29ebf63d296222c25e9cb3b152ffb49ccab5c5e7a43cef5fef48330e833a55378859650a97499a6d11c4337e81dc89464a8ae1904c

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\_Files\_SCREE~1.JPE
    MD5

    b40b624057647d36ee50281c2b007b26

    SHA1

    9ec6ac0563f71b229bd191c5460fe462aaaef0eb

    SHA256

    01ee50540b3f2f26ecd712d1eff62675576ac139a2220c12498318c40b0fdc14

    SHA512

    8e6d572697081c20aad4ad29fe72d02c4cc267761145cb612fde03492cf0f09b069f569afd1f8656f3f5938d49915e7949402be6ee27bd06b4a7e022230f5057

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\SCREEN~1.JPG
    MD5

    b40b624057647d36ee50281c2b007b26

    SHA1

    9ec6ac0563f71b229bd191c5460fe462aaaef0eb

    SHA256

    01ee50540b3f2f26ecd712d1eff62675576ac139a2220c12498318c40b0fdc14

    SHA512

    8e6d572697081c20aad4ad29fe72d02c4cc267761145cb612fde03492cf0f09b069f569afd1f8656f3f5938d49915e7949402be6ee27bd06b4a7e022230f5057

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\SYSTEM~1.TXT
    MD5

    7c63b91119715c60ec69816dfc0f8d04

    SHA1

    80310b97915ab0ed962914cf69eca1355b36dffa

    SHA256

    fc5c0d8d667f76f66bafa76ddf369a01d2476020a82ca54da2df6b6efe7743af

    SHA512

    f78d9d89183fd09e34ad5d29ebf63d296222c25e9cb3b152ffb49ccab5c5e7a43cef5fef48330e833a55378859650a97499a6d11c4337e81dc89464a8ae1904c

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\_Chrome\DEFAUL~1.BIN
    MD5

    09500b419541e759ce53d87e324fe8fc

    SHA1

    4b882732508d2fc28536f8281c3b58777720c7da

    SHA256

    f80e7db7d3a06c87f03f5d0a9c7ab592ef05bc4fa5a8ab65c318c8455bd94476

    SHA512

    45e04f6283559638be00bffaf1a52a52a6998f835d5d40f756806a2323623074cb7ee9f802f4eba7d7523ccf3170f8986f89349ffbc1f2514ce25fdae0114fde

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\_Chrome\DEFAUL~1.DB
    MD5

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\_Chrome\DEFAUL~2.DB
    MD5

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

  • C:\Users\Admin\AppData\Local\Temp\YuIejIluoJ\files_\_Chrome\DEFAUL~3.DB
    MD5

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    13ec5227fe52bcf2fc8ca6b1dcc07641

    SHA1

    21a546771c1acdde48a8be21081ce0ae1e376bfb

    SHA256

    60c546941d7f705156881e6776c482c50f133d54ba520436291695fd39bff8bb

    SHA512

    bcd479d71b5f7a8a294d647f66ba2c7670c39270142bb86cf96a8ffb97a7d5dcefb654c29c926fd2f43917a7da9ca11215012e5a109aad6062ef9e9e65355928

  • C:\Users\Admin\AppData\Roaming\NCH Software\DrawPad\DpEditor.exe
    MD5

    13ec5227fe52bcf2fc8ca6b1dcc07641

    SHA1

    21a546771c1acdde48a8be21081ce0ae1e376bfb

    SHA256

    60c546941d7f705156881e6776c482c50f133d54ba520436291695fd39bff8bb

    SHA512

    bcd479d71b5f7a8a294d647f66ba2c7670c39270142bb86cf96a8ffb97a7d5dcefb654c29c926fd2f43917a7da9ca11215012e5a109aad6062ef9e9e65355928

  • memory/380-119-0x0000000001230000-0x000000000191B000-memory.dmp
    Filesize

    6.9MB

  • memory/380-118-0x0000000001230000-0x000000000191B000-memory.dmp
    Filesize

    6.9MB

  • memory/380-117-0x0000000077570000-0x00000000776FE000-memory.dmp
    Filesize

    1.6MB

  • memory/380-116-0x0000000001230000-0x000000000191B000-memory.dmp
    Filesize

    6.9MB

  • memory/380-115-0x0000000001230000-0x000000000191B000-memory.dmp
    Filesize

    6.9MB

  • memory/1052-123-0x0000000000000000-mapping.dmp
  • memory/1368-150-0x0000000000B50000-0x0000000001245000-memory.dmp
    Filesize

    7.0MB

  • memory/1368-149-0x0000000000B50000-0x0000000001245000-memory.dmp
    Filesize

    7.0MB

  • memory/1368-147-0x0000000077570000-0x00000000776FE000-memory.dmp
    Filesize

    1.6MB

  • memory/1368-148-0x0000000000B50000-0x0000000001245000-memory.dmp
    Filesize

    7.0MB

  • memory/1368-151-0x0000000000B50000-0x0000000001245000-memory.dmp
    Filesize

    7.0MB

  • memory/1368-144-0x0000000000000000-mapping.dmp
  • memory/2972-131-0x0000000000360000-0x0000000000A55000-memory.dmp
    Filesize

    7.0MB

  • memory/2972-140-0x0000000000360000-0x0000000000A55000-memory.dmp
    Filesize

    7.0MB

  • memory/2972-139-0x0000000000360000-0x0000000000A55000-memory.dmp
    Filesize

    7.0MB

  • memory/2972-138-0x0000000077570000-0x00000000776FE000-memory.dmp
    Filesize

    1.6MB

  • memory/2972-120-0x0000000000000000-mapping.dmp
  • memory/2972-130-0x0000000000360000-0x0000000000A55000-memory.dmp
    Filesize

    7.0MB

  • memory/3292-143-0x0000000000000000-mapping.dmp