Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fcda57e030e0fc1…

MALICIOUS

PDF

48.0 KB Created: 2020-08-09 20:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e3038c42dbf9f45001856f439fb4f16 SHA-1: f4ee80a9f685b3d4b2bd5e2a78f4cc38bee43655 SHA-256: 3fcda57e030e0fc1486967c00ac9f0cc6270c32bb95a59e441302df4703cc9cd
222 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, also contains the malicious redirector URL and several benign-looking Shopify URLs. The presence of a 'download button' lure and a callback lure suggests a phishing or scam attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=alcohol+phenol+and+ether+pdf+target+publications In PDF document text
    • http://pupolul.clarkpiperepair.com/uploads/1/3/1/6/131637016/5d040c95f79d.pdfIn PDF document text
    • http://files.smithsolarlab.com/uploads/1/3/1/3/131381605/71b6ebe93d39.pdfIn PDF document text
    • http://files.churchonthehillglenavon.com/uploads/1/3/1/3/131379639/polowanun-xegiguge-vefukabilob.pdfIn PDF document text
    • http://files.bee-kleen.com/uploads/1/3/2/6/132681887/4998236.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/1/0448/4333/5837/files/civil_engineering_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9753/files/drop_a_pin_google_maps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5567/6580/files/new_functional_training_for_sports_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/54188729335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/11268997580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7451/8178/files/gaguwulajigemarasubodatox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/tubimelexezikuxezox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/fasife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/13819330871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/zobepak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/gozujarexaxan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/bederexodexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/starcraft_terran_units.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6615 5544 bytes
SHA-256: 850b0c25c9bebe2c43cc0fbba550665d23417618b53db47f2ad00430c1806b2b
font_01_sfnt_off000078e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78E4 10616 bytes
SHA-256: 23570be6032e5b5ef886f186546bb3ae28677253be6fa52997762b38a0f7a0ef
font_02_sfnt_off00009d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D42 16164 bytes
SHA-256: 6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3

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