Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ef3be1e4aeba5ce…

MALICIOUS

PDF

94.2 KB Created: 2020-08-08 06:53:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e29ef6333d4c39c98aba512ff5f17d83 SHA-1: 2c7393040d89567d9a93359db3037337f21a8b8d SHA-256: 0ef3be1e4aeba5cee2b2a77107f54baa861ea1463e918f1d05e422147d677034
194 Risk Score

Malware Insights

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

The PDF contains multiple links pointing to a redirector service, which is a common tactic for phishing and malware distribution. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is part of a link farm designed to redirect users to malicious sites. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=jenis+plasmodium+malaria+pdf', is a clear indicator of malicious intent.

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=jenis+plasmodium+malaria+pdf In PDF document text
    • http://files.fruitsandrootswinetours.com/uploads/1/3/1/6/131606056/zaloxe-befopetemoxeta.pdfIn PDF document text
    • http://gomevolol.amyshomedaycare.com/uploads/1/3/1/4/131409090/979685.pdfIn PDF document text
    • http://digatoju.thebraider.com/uploads/1/3/1/4/131437987/6111243.pdfIn PDF document text
    • http://files.jessicakimsociology.com/uploads/1/3/1/3/131398000/wekirosuvakoxa.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/1/0432/2358/0830/files/analog_and_digital_signal_processing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/7706591487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/jegunojezoxepobate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7740/2778/files/75780218827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7196/2265/files/basella_alba_medicinal_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/tuwexajoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4327/4402/files/rains_of_castamere_instrumental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/kiralite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3057/5266/files/how_to_annoy_your_friends.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/narikited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0024/0024/files/blister_in_the_sun_guitar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6913/6280/files/passion_planner_academic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011dbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DBC 4980 bytes
SHA-256: c4d3ff4b4d498be4a38bde48553579956b43fb1ec0616d0cf78d7a637fd83bd4
font_01_sfnt_off00012e7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7B 14820 bytes
SHA-256: d18000836f49984c97a57542b70f02627507a45c8759f0430ff1709d83cf1b54
font_02_sfnt_off00015cce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CCE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176