Malicious PDF — malware analysis report

Static analysis result for SHA-256 78be41cba81705a4…

MALICIOUS

PDF

63.6 KB Created: 2020-08-08 05:40:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51ac39f384a1a634ecab48f6902edcc7 SHA-1: f08a27c885d893ef822f10f427b40aa8a42aa49f SHA-256: 78be41cba81705a4a718f782f76b19ebfc62caaa01df3b06b4f3100cb0a83f05
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains text related to 'explosion box template pdf' and includes the malicious redirector URL, suggesting a phishing or scam lure. The presence of a link farm and redirector indicates an attempt to drive traffic to malicious sites.

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/pify?keyword=explosion+box+template+pdf In PDF document text
    • http://files.tateliberaswanson.com/uploads/1/3/1/3/131383255/kugifipikawam.pdfIn PDF document text
    • http://files.rileytechnical.com/uploads/1/3/0/7/130738876/japofigagife.pdfIn PDF document text
    • http://files.jabberboxing.com/uploads/1/3/0/7/130776852/pakezogufevuser-kadusovezulativ.pdfIn PDF document text
    • http://files.stjohnlutheranchurch.com/uploads/1/3/2/6/132682655/xojuwejuvexa.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/1/0434/1540/4695/files/65514590257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9927/5935/files/piwurunugemusefamab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7863/2095/files/budget_deficit_and_economic_growth_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/magur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/judixowibezin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/arduino_beginner_kit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/jixasukizux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/farsi_letters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6074/files/segadamajaxibos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/24870399682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5502/2234/files/guvowoxuwomafazuloki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3472/8853/files/ggplot_change_axis_labels.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 20292 bytes
SHA-256: ad642610238166bea2eedff2fbefb74833311dd18e236a8f9ae9ae192801afd0
font_01_sfnt_off0000aa12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA12 5256 bytes
SHA-256: f81c90479c3fe930bee46a0f6e9295409dbf5aef1df1866bfe162f1bfa6379ae
font_02_sfnt_off0000bbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE1 17408 bytes
SHA-256: 3ae6ebf78d7feaec23e67f0e63b5f49c3ff6df44bbdca68e0fb8945fa6603bf4

Open this report in the interactive analyzer, or submit your own file for analysis.