Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e37fa197a417d0e…

MALICIOUS

PDF

51.4 KB Created: 2020-08-25 11:19:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 611d1509e53132455a96303ad5a29270 SHA-1: cc6453a240e15c79422f84073f361c4d5fd66ca9 SHA-256: 5e37fa197a417d0e5f6848c069f63801db21b665863c2a94a4779291c3346396
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector infrastructure identified as malicious. The document body, though partially corrupted, suggests a lure related to an 'oil and gas well completion report'. The presence of a link farm and a malicious redirector indicates a phishing or content-distribution scheme, likely leading to further malware or scams. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=oil+and+gas+well+completion+report In PDF document text
    • http://ripobaxev.heartheartheartearth.com/uploads/1/3/1/4/131407558/zapeminolodopos.pdfIn PDF document text
    • http://files.westcarypsychiatry.com/uploads/1/3/2/7/132712096/7721647.pdfIn PDF document text
    • http://files.goldfishprints.net/uploads/1/3/1/8/131871569/6289455.pdfIn PDF document text
    • http://jabaneku.doulasinatlanta.com/uploads/1/3/2/7/132712062/dinafen.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/1/0437/9095/8749/files/aoac_methods_volume_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/56809776110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/xulutifovovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5395/1650/files/tetulalodofasalupose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5276/7131/files/gozazomuziradoludepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/49239837947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/83955475938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2147/5740/files/materialismo_dialtico_e_psicanlise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8502/8764/files/safewesepaxovuparoxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/gedomef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0087/files/vuvapejeruwidufodatekipil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/enterprise_blockchain_platform_comparison.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1677/4054/files/limoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8965/5960/files/pluralisme_religieux.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8204 5512 bytes
SHA-256: 4648405a8bbac030d6c941c78fd6b3dd3bddcb6f3c6b17f093d6a208da039218
font_01_sfnt_off000094b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94B1 14380 bytes
SHA-256: 6d5428d9a25397e9c262dfd67bde5f6d92d41570d5e2cc249f358eba166ef54f