Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1dbfc0936ee7c2c…

MALICIOUS

PDF

45.1 KB Created: 2020-08-02 02:18:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a797b18b207aaa3b4d317f1effef7782 SHA-1: 3abc81f1fd5376f6221af2d176544c63f5dbb835 SHA-256: a1dbfc0936ee7c2c26370c93bf1e0cff8d6ad144695b84878dd2de6062ab5909
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Another critical heuristic indicates a PDF link farm, with 'cdn.shopify.com' being a dominant host. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=gta+online+best+apartment', suggesting a lure related to 'gta online best apartment'. No scripts were extracted from this sample.

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=gta+online+best+apartment In PDF document text
    • http://files.waterproofingshopdrawings.com/uploads/1/3/1/3/131378921/0a59d9cc72bd04.pdfIn PDF document text
    • http://files.sydneybroadaway.com/uploads/1/3/1/3/131398052/7cc3e4.pdfIn PDF document text
    • http://files.psichicpp.com/uploads/1/3/2/3/132303238/golilamaxoz-surewasuveluge.pdfIn PDF document text
    • http://files.toniabasihill.com/uploads/1/3/1/3/131379860/dcf8b9.pdfIn PDF document text
    • http://files.attitudedancecompany.com/uploads/1/3/1/0/131071157/4127277.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/1/0428/1411/1903/files/rabonir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4045/4294/files/6014739795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/lalupugokagekutepazinop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0318/3258/files/xesedutalodatirukuxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0618/8955/files/28465081381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3227/3319/files/43281889150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/50321174169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4277/4935/files/robifiduraze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56325204281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1450/4093/files/41205127896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0563/9836/files/nokuzorewu.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_off0000730e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730E 5136 bytes
SHA-256: 3c24e58712122e4cf3553426598ebcd94e3d906e2204c693dadf5137d52b2793
font_01_sfnt_off00008469.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8469 10192 bytes
SHA-256: 82d7af363282350ab35ef39b266a5677cfb34c42de38e732db4ad45ec5d04bd6

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