Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03d1d00f0f99ae0…

MALICIOUS

PDF

48.2 KB Created: 2020-08-23 05:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed2cc6d69a01b5736f8172b85f1b2077 SHA-1: 0b2f248f5d5be4805c63333e1deb785a09433dc2 SHA-256: a03d1d00f0f99ae06c79ef4340b9613f237bee41588af3b2bdc22b692a8b93f5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a primary malicious redirector URL identified. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for a phishing or malware distribution campaign. The ML classifier strongly indicated maliciousness, supporting the presence of a malicious redirector.

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=parasite+plague+inc+guide+brutal In PDF document text
    • http://files.michimathias.com/uploads/1/3/0/9/130969446/vobebiwarofab.pdfIn PDF document text
    • http://files.chesssaveslives.com/uploads/1/3/0/7/130775982/642eeab.pdfIn PDF document text
    • http://files.hionfi.com/uploads/1/3/1/0/131071063/kezatile.pdfIn PDF document text
    • http://mijutox.amdlifestylemgt.com/uploads/1/3/1/4/131454057/xamane.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/breast_cancer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/christmas_carols_lyrics_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51220099535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9898/6909/files/online_convert_jpg_to_200kb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8484/1124/files/xagivatagexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1289/files/9356190517.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9232/9116/files/farudukojokad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8179/2677/files/31384651676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6909/5590/files/sports_bike_images_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/gta_vice_city_xbox_one.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E2C 5380 bytes
SHA-256: 369455ce40f6688099dd1aa27f1acf5da12168fdb7e78e874f89529bb4a232db
font_01_sfnt_off0000906f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906F 10420 bytes
SHA-256: 1082aa0c1cfaaa7c5eb72335256d6f15da1aec7a4818f74a56bcc9306b28ec98

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