Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c89dffc93c6c956…

MALICIOUS

PDF

41.8 KB Created: 2020-08-15 00:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 886e0eb197b3a02fd7c96ed7f98bbcea SHA-1: 628ca3d1f88a7e4b9d9647d01e45f8ebb663f830 SHA-256: 3c89dffc93c6c95638b55edef79ecabdf90d3657ea569c7cb3b6c669fcf18b5c
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'ibpsguide free mock test sbi clerk', suggesting a lure for exam preparation. The primary malicious URL is a redirector, likely serving as a gateway to further malicious content or phishing pages.

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=ibpsguide+free+mock+test+sbi+clerk In PDF document text
    • http://files.castlesjewelry-gifts.com/uploads/1/3/1/3/131379506/0eedd9ae60d80.pdfIn PDF document text
    • http://files.gmbcgulfport.com/uploads/1/3/0/9/130969403/vakupubaz-lodunupen-vujematuxakixad.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/1/0430/9955/3959/files/vegudoguwetejum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/wekubipil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/73924173027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/75553715215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2590/2240/files/types_of_assessment_instruments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevebetivegukubevam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1055/5034/files/vaxavoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6876/6873/files/lololavoromowobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4020/2142/files/98102690698.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 3

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_off000058ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AC 5404 bytes
SHA-256: da6a996240b3efca3708bdf965d5ddb3e307d37b4edfa0aa8b17641632e54d59
font_01_sfnt_off00006af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF2 14924 bytes
SHA-256: c94423280844240bee3a345f13e68ea406f3773cb9c4dc99d096b92042639bff

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