Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68c823c999de002…

MALICIOUS

PDF

45.8 KB Created: 2020-08-12 09:19:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d861eb81e5e35350f1f73662c528cc6 SHA-1: 68661da5112d6eefd89d433d678d0374be1130bc SHA-256: a68c823c999de0026f92691403f7b21a6585babaeabb78b451678e2a2a776884
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=self+care+adalah+pdf', suggesting a lure to a malicious site. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the true destination.

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.ru/pify?keyword=self+care+adalah+pdf In PDF document text
    • http://files.offspring-design.com/uploads/1/3/1/3/131384025/9251476.pdfIn PDF document text
    • http://files.akalasjewelry.com/uploads/1/3/0/7/130740530/5283910.pdfIn PDF document text
    • http://files.manufacturedfun.com/uploads/1/3/0/8/130874029/rabazawituzukevag.pdfIn PDF document text
    • http://files.amyhandelsman.com/uploads/1/3/1/4/131407818/vusebujifenalen-jagopow-redigarab.pdfIn PDF document text
    • http://files.bodyrevolutiononline.com/uploads/1/3/0/7/130738859/8740811.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/1/0429/5481/7690/files/zubedono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/multiplication_worksheets_year_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/jefubunomokuxeroja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0220/files/approaches_to_curriculum_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/60765649990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2915/8295/files/ps2_bios_zip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3201/9097/files/rumuxamowam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/19307953116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/nejagabamoxabupusuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8362/8708/files/this_is_amazing_grace_chords_bb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2113/1161/files/organic_chemistry_acs_exam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6487/7471/files/47946324833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/ponozix.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 7

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_off0000708c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 5168 bytes
SHA-256: 06568007eb2470d15479806d5e147cfa163b4455efce33e7ea39490c270b304f
font_01_sfnt_off00008213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8213 12136 bytes
SHA-256: 37ca4f1470f820d8ee12e09f76392fc9cfd67afef53dfb6f4bd92c5184e233e6

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