Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c3fe179324760c…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 22:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4816a4fff604875cde4035cfad8f4611 SHA-1: a9c629a34ba69abbed711b9a9917e05ca4ea3fb3 SHA-256: 34c3fe179324760c9b362b79fd0c168bb79a4e06aaf7a74740c9426709ebd663
234 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Aiag cqi 27 pdf' and includes the malicious URL. The presence of a password-protected archive lure heuristic suggests this PDF is intended to trick the user into downloading a password-protected file, likely containing a further payload.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/pify?keyword=aiag+cqi+27+pdf In PDF document text
    • http://files.annualreport-m2016.com/uploads/1/3/2/8/132814427/delopufekigo-rotivobo.pdfIn PDF document text
    • http://files.buffalo-hood-cleaning-services.com/uploads/1/3/1/3/131380343/toxogep-zagevifod-reloduge.pdfIn PDF document text
    • http://files.aawcphilly.org/uploads/1/3/1/3/131380850/pewub.pdfIn PDF document text
    • http://files.duluthfinepianos.com/uploads/1/3/1/4/131452811/3ba0a88.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/1/0432/5621/7750/files/75191688846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5530/0249/files/tiwef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/12218849389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4875/4600/files/16644083678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7408/3233/files/zefopigagemutagimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2906/0001/files/89315391722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7564/9180/files/47902153385.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6141/8913/files/92592043468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/kikosevepen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8303/7860/files/the_faerie_prince_rachel_morgan.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_off00006c23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C23 5344 bytes
SHA-256: 2d740d3dac1e1923bf78ab90f03b9335b8ffde638ea354d7e7078e9863fe0e2a
font_01_sfnt_off00007e79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E79 10412 bytes
SHA-256: a81f6ded947cd719078f99a82e79d49a230e7daa7d170eb835ed4d6e06460c05

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