Malicious PDF — malware analysis report

Static analysis result for SHA-256 f436225bc70edc5d…

MALICIOUS

PDF

160.4 KB Created: 2025-06-29 16:44:35 +03:00 Authoring application: 376377000w000k000h000t000m000l000t000o000p000d000f000 0000000.00010002000.0006 (via GPL Ghostscript 9.53.3) First seen: 2026-06-11
MD5: 4b8cfb64ef2a150a898d08394c5d474d SHA-1: a8a7fffd1da7f70517c873a8b7fb0f202e435ece SHA-256: f436225bc70edc5d5490bac453d9320a78f654798d57957516ecba8bc3656a4d
94 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0003

Heuristics 6

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://bifotep.tugoduzak.com/539032874129760054507882823774600124161596?wigimawuvowukuvobabusafemoniruloruvarutawopixikeworolasuxaweg=gubasoxefebiwilikulakolosozaviwawosekirupukawugimukafulobitukotewewizironajeruwigufikosifilajisuwowivawikuminulurosexegesubemaruvemaxikurafiligubijuzufijemexovixomesalepiwewevopeduxuzolixuvitoxupoguzowokud&utm_term=tord+palander+theory+of+industrial+location+pdf&nojaradolubibiguladolupajasomalapoziwufazo=dusorojamakiporitakizugonunejanagedakijexipovubuwanepeziwogugutenizetutulujigafudikumelizikaponenuwodafojikobupujomudigipimuginesozuvovidotawozezir)/Type/Action In PDF document text
    • https://bifotep.tugoduzak.com/539032874129760054507882823774600124161596?wigimawuvowukuvobabusafemoniruloruvarutawopixikeworolasuxaweg=gubasoxefebiwilikulakolosozaviwawosekirupukawugimukafulobitukotewewizironajeruwigufikosifilajisuwowivawikuminulurosexegesubemaruvemaxikurafiligubijuzufijemexovixomesPDF link annotation
    • https://bifotep.tugoduzak.com/539032874129760054507882823774600124161596?wigimawuvowukuvobabusafemoniruloruvarutawopixikeworolasuxaweg=gubasoxefebiwilikulakolosozaviwawosekirupukawugimukafulobitukotewewizironajeruwigufikosifilajisuwowivawikuminulurosexegesubemaruvemaxikurafiligubijuzufijemexovixomesalepiwewevopeduxuzolixuvitoxupoguzowokud&utm_term=tord+palander+theory+of+industrial+location+pdf&nojaradolubibiguladolupajasomalapoziwufazo=dusorojamakiporitakizugonunejanagedakijexipovubuwanepeziwogPDF link annotation
    • https://bifotep.tugoduzak.com/539032874129760054507882823774600124161596?wigimawuvowukuvobabusafemoniruloruvarutawopixikeworolasuxaweg=gubasoxefebiwilikulakolosozaviwawosekirupukawugimukafulobitukotewewizironajeruwigufikosifilajisuwowivawikuminulurosexegesubemaruvemaxikurafiligubijuzufijemexovixomesalepiwewevopeduxuzolixuvitoxupoguzowokud&utm_term=tord+palander+theory+of+industrial+location+pdf&nojaradolubibiguladolupajasomalapoziwufazo=dusorojamakiporitakizugonunejanagedakijexipovubuwanepeziwogugutenizetutulujigafudikumelizikaponenuwodafojikobupujomudigipimuginesozuvovidotawozezirIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://ns.adobe.com/iX/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023bb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23BB8 380 bytes
SHA-256: d90f10d040ad8a2391b7358b30a8cc8d83a155b17cb646b0b539a2a95b36c6c7
font_01_sfnt_off00023e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23E31 15956 bytes
SHA-256: 161450b3803659c06dbc5394906ddbe07dd0035f53fa8aa864858b809be200af
font_02_sfnt_off00026785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26785 348 bytes
SHA-256: e122923e2cabe3f77ffc6649f265b6b56701d9aa5e64f369f581eb0e01a28c4b
font_03_sfnt_off000269e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x269E7 1208 bytes
SHA-256: 7d354c342a5e36f211e5d1f4adcd4e8e4a7e27c9016c6de9e7ac760db633ff9d