Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c1486e0bb2f5f5…

MALICIOUS

PDF

40.1 KB Created: 2020-08-17 10:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5aa285baa5a0a743783b93a4f923dc2d SHA-1: 77a3d76a5649a3d8bdf13f4d872e48a5efa358d1 SHA-256: 95c1486e0bb2f5f53cf092453824e4f54ac0f7cc87f82bca95ffe505ae941102
214 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, including one pointing to a known malicious redirector. The document body, though partially corrupted, suggests a lure for a 'batch PSD to JPG converter free', which is a common tactic to entice users to click malicious links. The presence of a callback phishing lure further supports the malicious intent. The primary malicious IOC is the redirector URL, which likely leads to further stages of the attack.

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.
  • 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.
  • 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=batch.+psd+to.+jpg+converter+free In PDF document text
    • http://ratone.all-haven.com/uploads/1/3/1/6/131606103/466053.pdfIn PDF document text
    • http://files.shelleyartwork.com/uploads/1/3/0/7/130776728/vapafilido.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/1/0435/3864/5144/files/vidanod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/42356955729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9114/8454/files/noxalolitufefapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6567/8755/files/seposuxuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/dodutatefotoxog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/swash_plate_piston_pump.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2515/9576/files/rafumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/mufatafanikajasojixelifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2887/files/balance_sheet_format_under_llp_act.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 4

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_off00005e65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E65 5604 bytes
SHA-256: 64d4a72df00f1c8eede6f4abb767035514a4fec3d082886bd401544e79d77e02
font_01_sfnt_off0000717d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x717D 10160 bytes
SHA-256: bf4f06178f47a7b8ceb059ee4a81c96e98cdb2b464d9e59883ca74b1492aa1ed

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