Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab01999723a0fc49…

MALICIOUS

PDF

47.9 KB Created: 2020-08-12 19:08:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 739d7bd1f6d868023f8c92bbb8b5bbbb SHA-1: 791120d5ed1dd19e66193c73e34f50ba988a49c3 SHA-256: ab01999723a0fc49f479df938634776552d4b4b01d6c49ca835e616f289a9ed7
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be related to 'carrier chiller manuals' and the malicious URL. This suggests a social engineering attack where the user is tricked into clicking a link under the guise of accessing a manual, leading to a malicious site.

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.cc/wb?keyword=carrier%2002xr%20chiller%20manuals In PDF document text
    • http://files.firstofwarren.com/uploads/1/3/0/7/130775228/kufukafowid_tukupa_rosisuvimu_xejuf.pdfIn PDF document text
    • http://wajavaput.jacksonheightsofwb.com/uploads/1/3/1/8/131856373/rusivavusaluxumubas.pdfIn PDF document text
    • http://files.fitnessfactory1.com/uploads/1/3/0/7/130739567/3499249.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/1/0429/1385/7692/files/65143849024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32296476761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2974/2246/files/63924398717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/jarinitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4229/files/duxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/bose_quietcomfort_35_ii_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/zebegenugejeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/41481598488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4895/1194/files/64539665063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/3276220707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1116/8663/files/gagiwinifapusinapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/42471614292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/traveller_magazine_download.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 5284 bytes
SHA-256: f446819019912944d931ff67a39d014a8396602583dbaa385cfc7838d1cd521b
font_01_sfnt_off000084e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E0 14580 bytes
SHA-256: 61d062378dd09574f2c54ae7a36a002cd7abf84959c8cc70a5c55a5cb8650988

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