Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ccd8808705b01f4…

MALICIOUS

PDF

47.5 KB Created: 2020-08-25 01:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5601e573f8c558d4ece93520f2c255f6 SHA-1: 4f748cd4403f57f56d27816125fd78e0cf39d70d SHA-256: 6ccd8808705b01f4c2ee29e7907255b19bbaa1eb93e2a64af59d0a7d97dac405
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics and IOCs, suggesting a phishing or scam attempt disguised as a free download. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.cc/pify?keyword=python-+twisted-+web+rpm In PDF document text
    • http://pubawo.cindykollerphotography.com/uploads/1/3/0/9/130969723/vewiku_xewinolaguvav.pdfIn PDF document text
    • http://dexidoro.isolahandmadeoriginals.com/uploads/1/3/0/9/130969521/4480132.pdfIn PDF document text
    • http://files.wpca.org.za/uploads/1/3/1/1/131164572/1234495.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3860/1379/files/bogleheads_guide_to_investing_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/48142024350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7941/7504/files/jepezisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/35236397655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/ladotesesawibomogasazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5459/4213/files/34304767173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6179/5230/files/ba_second_year_full_movie_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/10782593169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/xudivisaduvebifimaxukelip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9442/4232/files/71095322486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/44844242680.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/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://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000629e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629E 5112 bytes
SHA-256: 434d53f66ab92fc61d23e5aff6d8ea0c5a760e7e86d42ef1174c3598b6668753
font_01_sfnt_off000073df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DF 15308 bytes
SHA-256: db42b2bc86ee2156cd5ca6491d8dda2c6ceecb76c4467a23c23ba7b3f008c611
font_02_sfnt_off0000a355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA355 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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