Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    11-01-2022 12:22

General

  • Target

    66e4a874645a4e5cffa45813dd5e6bc38dd218247ff784a0618a2d38bdb4a767.exe

  • Size

    2.7MB

  • MD5

    459b0f64c3cb635a03af588adcb98077

  • SHA1

    af3573b5a9ae95d061bb2c0f262a7759b6d8c309

  • SHA256

    66e4a874645a4e5cffa45813dd5e6bc38dd218247ff784a0618a2d38bdb4a767

  • SHA512

    17a53247ea4514c66abb01cecdc44919d768905df56eb6a15361b84c7ea07edc329f48b266406997b40e218cc28ad26b3d295eb55067aa92c3d85e4573b8457a

Malware Config

Extracted

Family

cryptbot

C2

kotbri22.top

moruzj02.top

Attributes
  • payload_url

    http://okavor03.top/download.php?file=acaboa.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\66e4a874645a4e5cffa45813dd5e6bc38dd218247ff784a0618a2d38bdb4a767.exe
    "C:\Users\Admin\AppData\Local\Temp\66e4a874645a4e5cffa45813dd5e6bc38dd218247ff784a0618a2d38bdb4a767.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:3528
    • 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:604
      • 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:4312
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\bhBsPZgDI & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\66e4a874645a4e5cffa45813dd5e6bc38dd218247ff784a0618a2d38bdb4a767.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3464
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:4180

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

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

    9fc7af6629c940c285a28f316a4039f3

    SHA1

    24bfdfc77cfe9f744be469303233a499c8382bf1

    SHA256

    d352c45f6e8f71a05cf95cf21ff95fcf25a0d15efe304b0d7f11f6161095b31a

    SHA512

    ed428f4e2f70d4a225630c2ea07b3129194db0f7e0fc1ddadcf914a51ffb00fcbf127e934631f642e72f235d3fb12105d03cb93111e86ac8782244297e4bcd8e

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

    9fc7af6629c940c285a28f316a4039f3

    SHA1

    24bfdfc77cfe9f744be469303233a499c8382bf1

    SHA256

    d352c45f6e8f71a05cf95cf21ff95fcf25a0d15efe304b0d7f11f6161095b31a

    SHA512

    ed428f4e2f70d4a225630c2ea07b3129194db0f7e0fc1ddadcf914a51ffb00fcbf127e934631f642e72f235d3fb12105d03cb93111e86ac8782244297e4bcd8e

  • C:\Users\Admin\AppData\Local\Temp\bhBsPZgDI\IBPVOU~1.ZIP
    MD5

    c0cb9342d9467032484da5ab86f0f1a1

    SHA1

    b419ee9fb7ef5c23166faca9f017a6d92787f7b4

    SHA256

    a617bed31c735ca06af1eb2bd7f7e27f0e864438a4f6cf907a797b8a64294789

    SHA512

    f8e5c986b459eb1a2dc0545adfe0818dfd4f69ebebc25ad306173d89b21e274b87cc66596e5e0467eafdbc4999d09a5133407d2da59ec74b1274caceb2f70d3a

  • C:\Users\Admin\AppData\Local\Temp\bhBsPZgDI\NQDGQO~1.ZIP
    MD5

    5bd3fb73f16ad79eaae99a41940ea38e

    SHA1

    1dc060150dd45d823ccc7fd0ac9c59788ca63ed4

    SHA256

    e43401081b2ba1012b3c50d457b84b96a258f093a12fd1b0c5e3ddc56923eb88

    SHA512

    ef47da4b0ab7d95cd28e763c762ffe73827d7e5421fe9f56a4b4ac6bc1c0b7e6865adbc67d2b6c8027460c9ace8c12d6c60ddb9c7a4ab49277e82c6cebe0bde1

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

    f4b8e6e7ca32ed5ab1653cc327475cc0

    SHA1

    e7c30740b8cc28534d398ff4036e0cc6649619ce

    SHA256

    34abcff7dd7e3157dc78b58d9fc7ce57be556a550bcc6a2b2257c9b08107cbe2

    SHA512

    edc72a374b28b984d8d3ced5a27ddb1a91e843ab873f7b700eecea87c0dfea961359f7931ea127ee2b8edc2602968795c6b9f121622dffca23241736c44d8ae2

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

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

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

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

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

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

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

    41677146e1938013cb0ac56bb5d2c615

    SHA1

    195aea786bc332fe1d908ff70add4aba060ab1db

    SHA256

    b8f179a2d66e7cef88d4569398a4b3d8c61556179dd0b54c850fcc593281512c

    SHA512

    264d289496fd8984d2d70caeab7e523ff7b676667f9ef1e29f1bceca7578f352d7b4fb7581d6c7ab0af8a67d3b13c8904400e2c561fda1d09b4a782baaaed814

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

    05fcb8c4e2b8b09e0f6bfaa274a65e3b

    SHA1

    40e8290c1be7fd1bee8b125c3f9b86b1c2889cb7

    SHA256

    6eab9b27aae47dc34d2d12c4870903126efc38b21c962f728299f814e18ad793

    SHA512

    a762b8d68ab540b325e865204d8550435b3f21e36892064472b3daa2e17bd92c219ecff96032476d3fbfca1447ebdf29051f8e6c4b580997bbe06e089903f91b

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

    05fcb8c4e2b8b09e0f6bfaa274a65e3b

    SHA1

    40e8290c1be7fd1bee8b125c3f9b86b1c2889cb7

    SHA256

    6eab9b27aae47dc34d2d12c4870903126efc38b21c962f728299f814e18ad793

    SHA512

    a762b8d68ab540b325e865204d8550435b3f21e36892064472b3daa2e17bd92c219ecff96032476d3fbfca1447ebdf29051f8e6c4b580997bbe06e089903f91b

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

    41677146e1938013cb0ac56bb5d2c615

    SHA1

    195aea786bc332fe1d908ff70add4aba060ab1db

    SHA256

    b8f179a2d66e7cef88d4569398a4b3d8c61556179dd0b54c850fcc593281512c

    SHA512

    264d289496fd8984d2d70caeab7e523ff7b676667f9ef1e29f1bceca7578f352d7b4fb7581d6c7ab0af8a67d3b13c8904400e2c561fda1d09b4a782baaaed814

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

    f4b8e6e7ca32ed5ab1653cc327475cc0

    SHA1

    e7c30740b8cc28534d398ff4036e0cc6649619ce

    SHA256

    34abcff7dd7e3157dc78b58d9fc7ce57be556a550bcc6a2b2257c9b08107cbe2

    SHA512

    edc72a374b28b984d8d3ced5a27ddb1a91e843ab873f7b700eecea87c0dfea961359f7931ea127ee2b8edc2602968795c6b9f121622dffca23241736c44d8ae2

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

    b608d407fc15adea97c26936bc6f03f6

    SHA1

    953e7420801c76393902c0d6bb56148947e41571

    SHA256

    b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

    SHA512

    cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

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

    055c8c5c47424f3c2e7a6fc2ee904032

    SHA1

    5952781d22cff35d94861fac25d89a39af6d0a87

    SHA256

    531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

    SHA512

    c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

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

    8ee018331e95a610680a789192a9d362

    SHA1

    e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

    SHA256

    94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

    SHA512

    4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

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

    9fc7af6629c940c285a28f316a4039f3

    SHA1

    24bfdfc77cfe9f744be469303233a499c8382bf1

    SHA256

    d352c45f6e8f71a05cf95cf21ff95fcf25a0d15efe304b0d7f11f6161095b31a

    SHA512

    ed428f4e2f70d4a225630c2ea07b3129194db0f7e0fc1ddadcf914a51ffb00fcbf127e934631f642e72f235d3fb12105d03cb93111e86ac8782244297e4bcd8e

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

    9fc7af6629c940c285a28f316a4039f3

    SHA1

    24bfdfc77cfe9f744be469303233a499c8382bf1

    SHA256

    d352c45f6e8f71a05cf95cf21ff95fcf25a0d15efe304b0d7f11f6161095b31a

    SHA512

    ed428f4e2f70d4a225630c2ea07b3129194db0f7e0fc1ddadcf914a51ffb00fcbf127e934631f642e72f235d3fb12105d03cb93111e86ac8782244297e4bcd8e

  • memory/604-133-0x0000000000CD0000-0x00000000013B1000-memory.dmp
    Filesize

    6.9MB

  • memory/604-134-0x0000000077C90000-0x0000000077E1E000-memory.dmp
    Filesize

    1.6MB

  • memory/604-125-0x0000000000CD0000-0x00000000013B1000-memory.dmp
    Filesize

    6.9MB

  • memory/604-124-0x0000000000CD0000-0x00000000013B1000-memory.dmp
    Filesize

    6.9MB

  • memory/604-120-0x0000000000000000-mapping.dmp
  • memory/604-132-0x0000000000CD0000-0x00000000013B1000-memory.dmp
    Filesize

    6.9MB

  • memory/3464-123-0x0000000000000000-mapping.dmp
  • memory/3528-115-0x00000000001B0000-0x00000000008A5000-memory.dmp
    Filesize

    7.0MB

  • memory/3528-117-0x00000000001B0000-0x00000000008A5000-memory.dmp
    Filesize

    7.0MB

  • memory/3528-116-0x00000000001B0000-0x00000000008A5000-memory.dmp
    Filesize

    7.0MB

  • memory/3528-118-0x00000000001B0000-0x00000000008A5000-memory.dmp
    Filesize

    7.0MB

  • memory/3528-119-0x0000000077C90000-0x0000000077E1E000-memory.dmp
    Filesize

    1.6MB

  • memory/4180-143-0x0000000000000000-mapping.dmp
  • memory/4312-144-0x0000000000000000-mapping.dmp
  • memory/4312-147-0x0000000000320000-0x0000000000A01000-memory.dmp
    Filesize

    6.9MB

  • memory/4312-148-0x0000000000320000-0x0000000000A01000-memory.dmp
    Filesize

    6.9MB

  • memory/4312-149-0x0000000000320000-0x0000000000A01000-memory.dmp
    Filesize

    6.9MB

  • memory/4312-150-0x0000000000320000-0x0000000000A01000-memory.dmp
    Filesize

    6.9MB

  • memory/4312-151-0x0000000077C90000-0x0000000077E1E000-memory.dmp
    Filesize

    1.6MB