Malicious PDF — malware analysis report

Static analysis result for SHA-256 7033b3ad5184c529…

MALICIOUS

PDF

45.7 KB Created: 2020-08-16 12:43:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 414e25f21ed47506d4ad48f20588d700 SHA-1: 655f220fab664e2ba4895b1c56399e62cca8f294 SHA-256: 7033b3ad5184c5292941e10b27df8b03d49e27be552d21567f51a5a177c1c63b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body and heuristics suggest a lure related to 'Bpsc answer key with question', likely intended to trick users into visiting the malicious URL. The presence of numerous external PDF links further supports the SEO link farm characteristic.

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=bpsc+answer+key+with+question In PDF document text
    • http://files.fcdetail.com/uploads/1/3/0/7/130739175/kaloxetusotat-jemezizi.pdfIn PDF document text
    • http://files.nickdolanmusic.com/uploads/1/3/2/6/132681891/sijebirajiloxolika.pdfIn PDF document text
    • http://files.eriedips.com/uploads/1/3/1/4/131437689/rimagariwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7637/1110/files/advantages_and_disadvantages_of_whistleblowing_in_organisation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7266/8319/files/argonautas_livro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0817/8845/files/jezazufetilejaveladarij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7030/4935/files/espn_nfl_2k5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3682/2939/files/b_f_skinner_theory_of_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/kathem_al_saher.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/85646233103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7264/2460/files/65404720617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/neoplasia_endocrina_multiple_1_y_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/garth_brooks_torrent.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
🗂 Part of campaign: fcdetail.com 3 samples

Related samples 6

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_off00005ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECB 5424 bytes
SHA-256: 27014396c359aca9080083a61d0b08ac2ee66f00e03529dd4e43d6a40cb4131b
font_01_sfnt_off00007150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7150 10224 bytes
SHA-256: cfeb8ac43e33b84f875c4e8335fdc2aaa11555ec24fdb3e13438f20b5254f58a
font_02_sfnt_off0000945a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945A 6080 bytes
SHA-256: 94d87a3fd8e8d6ab4dea47d4470f7e7ac83005db0160ee134c0f9996e69a5596

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