Analysis

  • max time kernel
    122s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    28-12-2021 19:28

General

  • Target

    2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3.exe

  • Size

    2.6MB

  • MD5

    8b2242c04e274c84a8dc25bcab75158f

  • SHA1

    33d4c61dca4ab2392f23b18ac3188491db586f0f

  • SHA256

    2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3

  • SHA512

    f26bb2f323140ce71dcbc174b298cca7f9803be20322d64b9ccaf254763ae93ca53a7382942c42dc4ca7b7454dc8147a9df8c91962c9200e9d83835a0f5430ab

Malware Config

Extracted

Family

cryptbot

C2

hevzbn22.top

morwce02.top

Attributes
  • payload_url

    http://kyvgns02.top/download.php?file=finjan.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\2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3.exe
    "C:\Users\Admin\AppData\Local\Temp\2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3.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:2760
    • 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:2864
      • 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:1664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\yJaKDLyaUi & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:68
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:528

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    f1dffa9fa58dab25262df38fef206123

    SHA1

    4f0771b244ed3b106ecb7e42a355dda964d5aebb

    SHA256

    4bb5aa42937187857a805d5405fbb0d82a49dde621e25b9dce74ed644393a471

    SHA512

    369bf66442159d2e5b0b15cc2c9651931d53a4c836ced124029c7ddb250ce208b841acfa4a190d9c5bdc1b69d93af83d47b260fefc6bb8bdd62ea9f9259354f4

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

    f1dffa9fa58dab25262df38fef206123

    SHA1

    4f0771b244ed3b106ecb7e42a355dda964d5aebb

    SHA256

    4bb5aa42937187857a805d5405fbb0d82a49dde621e25b9dce74ed644393a471

    SHA512

    369bf66442159d2e5b0b15cc2c9651931d53a4c836ced124029c7ddb250ce208b841acfa4a190d9c5bdc1b69d93af83d47b260fefc6bb8bdd62ea9f9259354f4

  • C:\Users\Admin\AppData\Local\Temp\yJaKDLyaUi\CAWAKM~1.ZIP
    MD5

    dfde5b644807556694956ef9210a6596

    SHA1

    b843757bc184eeb800f707ab2ed91d8abc4724ee

    SHA256

    6e8a3690b12056641a52fbfbbc147a81e98f875e81c31d6f26beccdcc184ca48

    SHA512

    d391ca7a28a9989a5cbaaae0d62472f8854f1ebbc6e3c21bfc6c721394bda857d4c3ed02e8eb751fdb86804ff80079cae3f2bc396bf0aa9285515f32031d9ea6

  • C:\Users\Admin\AppData\Local\Temp\yJaKDLyaUi\PDNIMA~1.ZIP
    MD5

    8405fd017eb3689d7cbcb87920c06e10

    SHA1

    460a91921c34588472b0595d9c75ce65ac09d44d

    SHA256

    3a38002cc978d3fa3f1196bb8e0b8d141db437ec338c9ceff186b62bfca6a7fd

    SHA512

    ad44ee8b5cf46b4b2b1ed0553cf63df2e13196d76b3698b8c1e76f3e7a2a59c67cd790eab5df8a4b3eb3226fc236e48c312428f38062c7b585ee6c4b2c343fa2

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

    09500b419541e759ce53d87e324fe8fc

    SHA1

    4b882732508d2fc28536f8281c3b58777720c7da

    SHA256

    f80e7db7d3a06c87f03f5d0a9c7ab592ef05bc4fa5a8ab65c318c8455bd94476

    SHA512

    45e04f6283559638be00bffaf1a52a52a6998f835d5d40f756806a2323623074cb7ee9f802f4eba7d7523ccf3170f8986f89349ffbc1f2514ce25fdae0114fde

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

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

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

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

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

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

  • C:\Users\Admin\AppData\Local\Temp\yJaKDLyaUi\_Files\_Files\SELECT~1.TXT
    MD5

    787d553ae46f37e59d23e274d5ada92a

    SHA1

    2806d17b6743275acea1af64699a1b7bf827fbb5

    SHA256

    9b9fb584322a049647f85ec770e32dba767a8f15f291a5dbf59304fa34456208

    SHA512

    eae615f6460604e1632aeffc0e6fd91bd4338ea2634770da55544b33394a3abd6d2feac44ad4750887e207618563071968f06dada4208da308fef4422f84c28b

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

    904c3fa1b18507fcdf1aab2353c50ce5

    SHA1

    1a9ef5802a33036d9bc80741b12b7199a376ae9d

    SHA256

    b8e4f06918e027516e8e08002723b58198a778ab962f926e988bf2e28eb05c47

    SHA512

    f07a4ac0d68902a55d873bcaa1cf1d0aef711ac231f792c4f354f63ef2f5399e0223b288de5861052ff585bb30c80e4c866bbd14dcffe621f9d8c02b89f7db85

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

    82e1352810a7490bb21297881ae5c81f

    SHA1

    4984ad57152d8a370258ad8d9f538f866685561c

    SHA256

    463a87bce4e22bfc2e89efb4835790f190d4edbcba9fa982a4a12018f5aa2793

    SHA512

    e35f28b3338abfefed7f6296db8190dc2ee630be08da2aa52d3185812e269e7fe039909ebf30013354156f05f002723f50c87cc69cf8538173b6bf1174512508

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

    82e1352810a7490bb21297881ae5c81f

    SHA1

    4984ad57152d8a370258ad8d9f538f866685561c

    SHA256

    463a87bce4e22bfc2e89efb4835790f190d4edbcba9fa982a4a12018f5aa2793

    SHA512

    e35f28b3338abfefed7f6296db8190dc2ee630be08da2aa52d3185812e269e7fe039909ebf30013354156f05f002723f50c87cc69cf8538173b6bf1174512508

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

    904c3fa1b18507fcdf1aab2353c50ce5

    SHA1

    1a9ef5802a33036d9bc80741b12b7199a376ae9d

    SHA256

    b8e4f06918e027516e8e08002723b58198a778ab962f926e988bf2e28eb05c47

    SHA512

    f07a4ac0d68902a55d873bcaa1cf1d0aef711ac231f792c4f354f63ef2f5399e0223b288de5861052ff585bb30c80e4c866bbd14dcffe621f9d8c02b89f7db85

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

    09500b419541e759ce53d87e324fe8fc

    SHA1

    4b882732508d2fc28536f8281c3b58777720c7da

    SHA256

    f80e7db7d3a06c87f03f5d0a9c7ab592ef05bc4fa5a8ab65c318c8455bd94476

    SHA512

    45e04f6283559638be00bffaf1a52a52a6998f835d5d40f756806a2323623074cb7ee9f802f4eba7d7523ccf3170f8986f89349ffbc1f2514ce25fdae0114fde

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

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

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

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

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

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

  • C:\Users\Admin\AppData\Local\Temp\yJaKDLyaUi\files_\files\SELECT~1.TXT
    MD5

    787d553ae46f37e59d23e274d5ada92a

    SHA1

    2806d17b6743275acea1af64699a1b7bf827fbb5

    SHA256

    9b9fb584322a049647f85ec770e32dba767a8f15f291a5dbf59304fa34456208

    SHA512

    eae615f6460604e1632aeffc0e6fd91bd4338ea2634770da55544b33394a3abd6d2feac44ad4750887e207618563071968f06dada4208da308fef4422f84c28b

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

    f1dffa9fa58dab25262df38fef206123

    SHA1

    4f0771b244ed3b106ecb7e42a355dda964d5aebb

    SHA256

    4bb5aa42937187857a805d5405fbb0d82a49dde621e25b9dce74ed644393a471

    SHA512

    369bf66442159d2e5b0b15cc2c9651931d53a4c836ced124029c7ddb250ce208b841acfa4a190d9c5bdc1b69d93af83d47b260fefc6bb8bdd62ea9f9259354f4

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

    f1dffa9fa58dab25262df38fef206123

    SHA1

    4f0771b244ed3b106ecb7e42a355dda964d5aebb

    SHA256

    4bb5aa42937187857a805d5405fbb0d82a49dde621e25b9dce74ed644393a471

    SHA512

    369bf66442159d2e5b0b15cc2c9651931d53a4c836ced124029c7ddb250ce208b841acfa4a190d9c5bdc1b69d93af83d47b260fefc6bb8bdd62ea9f9259354f4

  • memory/68-123-0x0000000000000000-mapping.dmp
  • memory/528-145-0x0000000000000000-mapping.dmp
  • memory/1664-152-0x0000000000070000-0x00000000007D0000-memory.dmp
    Filesize

    7.4MB

  • memory/1664-149-0x0000000000070000-0x00000000007D0000-memory.dmp
    Filesize

    7.4MB

  • memory/1664-150-0x0000000000070000-0x00000000007D0000-memory.dmp
    Filesize

    7.4MB

  • memory/1664-151-0x0000000000070000-0x00000000007D0000-memory.dmp
    Filesize

    7.4MB

  • memory/1664-146-0x0000000000000000-mapping.dmp
  • memory/1664-153-0x0000000077D20000-0x0000000077EAE000-memory.dmp
    Filesize

    1.6MB

  • memory/2760-118-0x0000000000100000-0x00000000007E6000-memory.dmp
    Filesize

    6.9MB

  • memory/2760-116-0x0000000000100000-0x00000000007E6000-memory.dmp
    Filesize

    6.9MB

  • memory/2760-117-0x0000000000100000-0x00000000007E6000-memory.dmp
    Filesize

    6.9MB

  • memory/2760-119-0x0000000000100000-0x00000000007E6000-memory.dmp
    Filesize

    6.9MB

  • memory/2760-115-0x0000000077D20000-0x0000000077EAE000-memory.dmp
    Filesize

    1.6MB

  • memory/2864-120-0x0000000000000000-mapping.dmp
  • memory/2864-124-0x0000000001010000-0x0000000001770000-memory.dmp
    Filesize

    7.4MB

  • memory/2864-125-0x0000000001010000-0x0000000001770000-memory.dmp
    Filesize

    7.4MB

  • memory/2864-127-0x0000000077D20000-0x0000000077EAE000-memory.dmp
    Filesize

    1.6MB

  • memory/2864-126-0x0000000001010000-0x0000000001770000-memory.dmp
    Filesize

    7.4MB

  • memory/2864-128-0x0000000001010000-0x0000000001770000-memory.dmp
    Filesize

    7.4MB