Analysis

  • max time kernel
    146s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-05-2024 23:36

General

  • Target

    2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    2239fcbdac9582e1a379dc39ca1e4dd1

  • SHA1

    9f3b3a7126144c2e3195d073f385c34fa82cfb6b

  • SHA256

    3fb79cd293ce64dcfd20d84df6db2d3c67869cde656bcbad684bb773f76c298f

  • SHA512

    994688df44661ad342c97757212487cc30fe3a1241e1e05ad15f44a393d53f9bd8173cfbaf143c17c297eea6a052afe900c2199c3385abf636ac3f2aa0b5ee97

  • SSDEEP

    98304:EJyh2DzSgTbg52T41Ahxo2DvzQ/LwqDVNzsgeIXS3HWbNYS1HGO5AUMW4kmw:EgDWq2s8xocE/Lxno1n2bNYS1HtAZW4S

Malware Config

Extracted

Family

cryptbot

C2

cede04.info

Signatures

  • CryptBot

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

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Blocklisted process makes network request 3 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\2239fcbdac9582e1a379dc39ca1e4dd1_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Program Files (x86)\Sir\Air\Setup.exe
      "C:\Program Files (x86)\Sir\Air\Setup.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Checks computer location settings
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:468
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c rd /s /q C:\ProgramData\jwcOvh6IeBxTiP & timeout 2 & del /f /q "C:\Program Files (x86)\Sir\Air\Setup.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4632
        • C:\Windows\SysWOW64\timeout.exe
          timeout 2
          4⤵
          • Delays execution with timeout.exe
          PID:4976
    • C:\Windows\SysWOW64\CScript.exe
      "C:\Windows\system32\CScript.exe" "C:\Program Files (x86)\Sir\Air\ipras.vbs" //e:vbscript //B //NOLOGO
      2⤵
      • Blocklisted process makes network request
      PID:3636
    • C:\Program Files (x86)\Sir\Air\Setupres.exe
      "C:\Program Files (x86)\Sir\Air\Setupres.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Checks computer location settings
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:2616

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Sir\Air\Setup.exe
    Filesize

    2.2MB

    MD5

    41af7998ebb519e0a0ca9635a865be5d

    SHA1

    68a7613a8d4483efb67f3794c245420e0daf2f95

    SHA256

    f05dc2ebf5bebbe40f1698489b873adcbefa41c98afe544fa04fd1ded91c9189

    SHA512

    31af03c31f0568ae57aab30c3d320a5505f3106ffd02c19b9bb5c740f76af332b27d929fca715029bfd49f2a0f404643616f0f88ab4f115693949688112ac5bb

  • C:\Program Files (x86)\Sir\Air\Setupres.exe
    Filesize

    2.0MB

    MD5

    b00f36abdbc0edb4729ae72ed388e965

    SHA1

    a1bf243bda51006cf4c8b9ee1fdcffb206058973

    SHA256

    5e64432c3afc95cfda49aa9479fd66efb8d7ef9812a2acb3fa9a0f536a2e5db9

    SHA512

    8dd8e5d9d6ad4a5515ae178f27e4878ddab3b8cf8786177cac91719517a959fba30cc7d93eb0eff9d1d71d097dbbdf07684fd8b077e144927079db8b8d1f5bb3

  • C:\Program Files (x86)\Sir\Air\ipras.vbs
    Filesize

    126B

    MD5

    b802ff9244875f69db2fae0f78e92b10

    SHA1

    49385a89cd575894a29fbda969b99cc1f5cf8076

    SHA256

    a1b0cb16fb2ecd66fccf156024404801ad694056e8a596326c1b27b57d8eabe8

    SHA512

    609856415a7ae2b3e260f945f1c8a8d2a28884c202d37181bea948708918f24b42ae03f17dba1520fddc91b2f7a182b0b8f885f33ea6f81bb3ee4c72e4e9350e

  • C:\ProgramData\jwcOvh6IeBxTiP\47283761.txt
    Filesize

    156B

    MD5

    b5089e0c5a3d5377e9bd19c0557ef04e

    SHA1

    9402e326be3d240e234c06892b15c24e93c93eb8

    SHA256

    d77789b2c49759c882f4fdd6f53e665b0d012f8f0949d0150eaba47fbf2a0eb5

    SHA512

    942349ccb99854f274ef1e20b623660588e15bd0d25bfc817fe9b2d010db656af340652e0e67b41edbf0cf259d55ab880d6b50acb1d7e8ab394f1393f7956c13

  • C:\ProgramData\jwcOvh6IeBxTiP\Files\_Info.txt
    Filesize

    8KB

    MD5

    1f17acca25107e899bb46630d7b364e2

    SHA1

    85fcac741a7a0e371e21f6a844e562b21d26ec62

    SHA256

    efa1365530f54b0fc9d0944e083400336bcd6dc11b96c752966d7acc953ddddc

    SHA512

    3eb1306f2ea8d05c730a6f56c223513125db02fb735b5346077727cdefc73fcd95235eb05c97c2586b1a63c3ba91d4980cc9832af0e19b30ebc5d73e5587ec71

  • C:\ProgramData\jwcOvh6IeBxTiP\Files\_Screen.jpg
    Filesize

    55KB

    MD5

    720186a2718e79d180305abdb97336d8

    SHA1

    6c378230fa0cf031f5b8671e13644966436fa5bb

    SHA256

    40723e85f1c51a7bcd39dc9d0735727bba8a50d81569eda941047700548f3950

    SHA512

    b36b86d93fab7d84445742b51c5762e12bd03df8b0b24492fb5c4e89d6f0fd609ebd026658e0f1e4ac21673c82d9b5f33ff98d81473ff2f7b1debda49377513b

  • C:\ProgramData\jwcOvh6IeBxTiP\HRKdPILNd1E.zip
    Filesize

    50KB

    MD5

    1e9a03696b34aac82d5a340568a6dbda

    SHA1

    a36af90ff1e9e9e48bd0ce545f1e0832815c491e

    SHA256

    bed1fb150bb7baaa46ca9a4f361fdb7ee96d5413753d7b33f2be2fdf8015917d

    SHA512

    c1cb925f531b6919baaf3df9cfe0c245fae7331e414baabb5cf8025313ef83c12b366482691a27301979a686f0a25d68193e9e54f564d11aff72f3515e5a3a66

  • C:\ProgramData\jwcOvh6IeBxTiP\MOZ_CO~1.DB
    Filesize

    96KB

    MD5

    40f3eb83cc9d4cdb0ad82bd5ff2fb824

    SHA1

    d6582ba879235049134fa9a351ca8f0f785d8835

    SHA256

    cdd772b00ae53d4050150552b67028b7344bb1d345bceb495151cc969c27a0a0

    SHA512

    cdd4dbf0b1ba73464cd7c5008dc05458862e5f608e336b53638a14965becd4781cdea595fd6bd18d0bf402dccffd719da292a6ce67d359527b4691dc6d6d4cc2

  • C:\Users\Admin\AppData\Local\Temp\nsy4305.tmp\UAC.dll
    Filesize

    14KB

    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

  • C:\Users\Admin\AppData\Local\Temp\nsy4305.tmp\nsExec.dll
    Filesize

    6KB

    MD5

    132e6153717a7f9710dcea4536f364cd

    SHA1

    e39bc82c7602e6dd0797115c2bd12e872a5fb2ab

    SHA256

    d29afce2588d8dd7bb94c00ca91cac0e85b80ffa6b221f5ffcb83a2497228eb2

    SHA512

    9aeb0b3051ce07fb9f03dfee7cea4a5e423425e48cb538173bd2a167817f867a30bd4d27d07875f27ca00031745b24547030b7f146660b049fa717590f1c77e1

  • C:\Users\Admin\AppData\Roaming\ergfsdcsv.exe
    Filesize

    14KB

    MD5

    5144ff98f2899b89cae6ab823001cc3d

    SHA1

    5bc102835752ec13da935bc30542c542cf57e3fc

    SHA256

    3f9bee59eb6c4d868c1d53b78c62dd8f14f5d4c98252d795a20555b4e462093e

    SHA512

    6509870a714826a5d9a7e8cdf58838cb72ab946d0092c639d2e365fe59593cfd149a2aaaa020cd030323667d8806e0e92e467778b6e58f5453e1198b07948912

  • C:\Users\Admin\AppData\Roaming\rgvsdc.exe
    Filesize

    14KB

    MD5

    3cf0c2889ad635527434729953d586a2

    SHA1

    6a591d829794566c6e592ebc96d44059d543f3cb

    SHA256

    e0c82b5d35f38b2a120a123330d09160c43827a0b16b78b0cf26c167a4b004d6

    SHA512

    7646879eeb6aaf2c0758c27cd51640ee5bcf52e884c3d726ed2200368d1abf8fc7d95118372c13ac294498f92aa6130bce7b8a76662f559780a9c7058f99daa7

  • memory/468-234-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-30-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-22-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
    Filesize

    4KB

  • memory/468-33-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-162-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-34-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-16-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-179-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-17-0x0000000077A84000-0x0000000077A86000-memory.dmp
    Filesize

    8KB

  • memory/468-182-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-23-0x0000000005000000-0x0000000005001000-memory.dmp
    Filesize

    4KB

  • memory/468-184-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-185-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-258-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-188-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-257-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-195-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-25-0x0000000000D31000-0x0000000000D90000-memory.dmp
    Filesize

    380KB

  • memory/468-200-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-243-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-204-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-238-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-208-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-37-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-212-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-230-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-216-0x0000000000D30000-0x000000000124B000-memory.dmp
    Filesize

    5.1MB

  • memory/468-24-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
    Filesize

    4KB

  • memory/2616-245-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-240-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-232-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-210-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-227-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-206-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-214-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-202-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-236-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-197-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-190-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-187-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-181-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-177-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-264-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB

  • memory/2616-265-0x0000000000400000-0x000000000091E000-memory.dmp
    Filesize

    5.1MB