Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4f45ca77a2e8f5…

MALICIOUS

PDF

55.2 KB Created: 2020-07-27 12:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0d202f736f41f699025f1391c05a989 SHA-1: ed3e88eda74481f614a4cdb5883a2b6147935ff6 SHA-256: ed4f45ca77a2e8f58d1428677dd10483940f742cd4b9a929defb0d0a093d9f58
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to distribute malware or phish for credentials. The ML classifier strongly flagged this PDF. The embedded URLs point to a redirector service and benign-looking Shopify links, likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to an online form and urgency, reinforcing the phishing or malware lure.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bsphcl.+bih.+nic.+in+online+form In PDF document text
    • http://files.joeyessmaracing.com/uploads/1/3/2/7/132741029/10833.pdfIn PDF document text
    • http://files.lindenweitz.com/uploads/1/3/1/4/131483371/ginepisijaje.pdfIn PDF document text
    • http://files.kiddylinguistics.com/uploads/1/3/1/6/131606694/7998542.pdfIn PDF document text
    • http://files.maarc.ca/uploads/1/3/1/4/131409574/d775000fe5fe9b1.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/1/0435/6590/8123/files/famawomawogotibagitobizob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/bojavunibalimulewuxoxodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6296/5912/files/xudugosuzadasixopufir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6222/2232/files/65591596740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/vodefasat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/sifekekedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8366/1461/files/fetugagab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2525/9944/files/xuribelopifenuwurutebur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokavurovapipemekimisam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5352/2850/files/20608276570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0484/6503/files/91704496331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/59548619948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/rowefuvifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/39019252969.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D82 4972 bytes
SHA-256: aa438f2cd44f2b6d953294d12627f635f55fcf19b8e9c4601e9ca8e19cd59e63
font_01_sfnt_off00008e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E27 14664 bytes
SHA-256: fd94f3e7de92fd49d10692900b4c4334fbb194c3ad88ede896642ab07e9dc8df
font_02_sfnt_off0000bc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC76 4972 bytes
SHA-256: 87146f57fc183ce70059141499ff1f2a8159a6c850f17f6dce023b4a0e425db7