Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d748efafd5b4eaa…

MALICIOUS

PDF

72.8 KB Created: 2010-05-29 04:10:48 +00:00 Authoring application: ReportLab http://www.reportlab.com
MD5: b1b6f88c70a9ebfa257504b73bb01989 SHA-1: 251ddb61a5a8855b9e111fe23b63344df4bc7dad SHA-256: 6d748efafd5b4eaa3019f064f378e34127dee30c45d98439fbafde54953d906f
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a direct link to a payload, indicated by the 'PDF_DIRECT_PAYLOAD_LINK' heuristic. The document body and extracted URLs suggest a theme related to payment services, which is likely a lure to entice users to download and execute the payload. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7386

Heuristics 7

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • Embedded file low PDF_EMBEDDED
    PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85
    ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
  • AcroForm button with action trigger low PDF_ACROFORM_BUTTON
    PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://en.wikipedia.org/w/index.php?title=Payment_service_provider
    • http://en.wikipedia.org/w/index.php?title=24x7payments.com
    • http://en.wikipedia.org/w/index.php?title=AlertPay
    • http://en.wikipedia.org/w/index.php?title=Barclaycard_ePDQ
    • http://en.wikipedia.org/w/index.php?title=Beenz
    • http://en.wikipedia.org/w/index.php?title=Bucks_Net
    • http://en.wikipedia.org/w/index.php?title=CyberBucks
    • http://en.wikipedia.org/w/index.php?title=DigiCash
    • http://en.wikipedia.org/w/index.php?title=CyberCoin
    • http://en.wikipedia.org/w/index.php?title=Datacash
    • http://en.wikipedia.org/w/index.php?title=ECash
    • http://en.wikipedia.org/w/index.php?title=Elavon
    • http://en.wikipedia.org/w/index.php?title=FasterPay
    • http://en.wikipedia.org/w/index.php?title=Firstgate
    • http://en.wikipedia.org/w/index.php?title=Flooz
    • http://en.wikipedia.org/w/index.php?title=Heidelpay
    • http://en.wikipedia.org/w/index.php?title=HSBC
    • http://en.wikipedia.org/w/index.php?title=IKobo
    • http://en.wikipedia.org/w/index.php?title=IKP
    • http://en.wikipedia.org/w/index.php?title=LibertyReserve
    • http://en.wikipedia.org/w/index.php?title=MagicMoney
    • http://en.wikipedia.org/w/index.php?title=Microeuro
    • http://en.wikipedia.org/w/index.php?title=MicroMint
    • http://en.wikipedia.org/w/index.php?title=Micromoney
    • http://en.wikipedia.org/w/index.php?title=MilliCent
    • http://en.wikipedia.org/w/index.php?title=Mondex
    • http://en.wikipedia.org/w/index.php?title=Moneybookers
    • http://en.wikipedia.org/w/index.php?title=MPAY24
    • http://en.wikipedia.org/w/index.php?title=NetCash
    • http://en.wikipedia.org/w/index.php?title=Ouroboros
    • http://en.wikipedia.org/w/index.php?title=Pago
    • http://en.wikipedia.org/w/index.php?title=PayMe
    • http://en.wikipedia.org/w/index.php?title=PayPal
    • http://en.wikipedia.org/w/index.php?title=PayPay
    • http://en.wikipedia.org/w/index.php?title=PayPoint.net
    • http://en.wikipedia.org/w/index.php?title=PaySafeCard
    • http://en.wikipedia.org/w/index.php?title=PayYourRent.com
    • http://en.wikipedia.org/w/index.php?title=PayXpert
    • http://en.wikipedia.org/w/index.php?title=PayWord
    • http://en.wikipedia.org/w/index.php?title=PeerTransfer
    • http://en.wikipedia.org/w/index.php?title=Peppercoin
    • http://en.wikipedia.org/w/index.php?title=Qunits.net
    • http://en.wikipedia.org/w/index.php?title=RBS_WorldPay
    • http://en.wikipedia.org/w/index.php?title=Realex
    • http://en.wikipedia.org/w/index.php?title=RentPayment
    • http://en.wikipedia.org/w/index.php?title=Sage_Pay
    • http://en.wikipedia.org/w/index.php?title=Safecharge
    • http://en.wikipedia.org/w/index.php?title=Secure_Trading
    • http://en.wikipedia.org/w/index.php?title=SIX_Card_Solutions_GmbH
    • http://en.wikipedia.org/w/index.php?title=SubScrip
    +18 more URL(s)

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
embedded_file_obj0090.bin
5e59290159e9174162cd06c2eead0a29580a452f315e8a355ef702a1a8d9b49f
pdf-embedded-file PDF EmbeddedFile object 90 at offset 0xE204 31834 bytes
embedded_file_obj0088.bin
d81baa73e490e4cb879e13927cacd1dd1be37524a37eac51603e15117c578777
pdf-embedded-file PDF EmbeddedFile object 88 at offset 0x11676 84 bytes
embedded_file_obj0089.bin
24c130f03a4cf51d470b536e94c1e58af67665739e200e0ce198ad41086243c0
pdf-embedded-file PDF EmbeddedFile object 89 at offset 0x11728 228 bytes
embedded_file_obj0091.bin
c97e0522381d6196cc0695f35f4d065f15c9c86a9601a7f776c6afd3f4c6b460
pdf-embedded-file PDF EmbeddedFile object 91 at offset 0x11819 199 bytes
embedded_file_obj0092.bin
846dfecc0c93797cb6db4301f6af323fffd76ffdf8c053c439495412785138e7
pdf-embedded-file PDF EmbeddedFile object 92 at offset 0x1190A 119 bytes
embedded_file_obj0093.bin
e6c26a3478346d27e841ad49868ebf68bf4c6863b6750e8d60bda3c4c6f79876
pdf-embedded-file PDF EmbeddedFile object 93 at offset 0x119C2 77 bytes
embedded_file_obj0094.bin
92a3ce61d783e15932b5de127ce45a9b4c2f98f4da2453f65241573c1dda808a
pdf-embedded-file PDF EmbeddedFile object 94 at offset 0x11A69 56 bytes
stream_001_off000047d7.bin
dd61f9b7e9810726b48da8ef71fccdf9703f17e2db2b306fbf30e6ddffb21e06
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D7 14096 bytes