Malicious PDF — malware analysis report

Static analysis result for SHA-256 962c48396928d893…

MALICIOUS

PDF

53.0 KB Created: 2020-08-14 12:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4add431adc9619375b1771b376c0cfc SHA-1: fd76c5fe434039787e21404a71f46746b7c5b967 SHA-256: 962c48396928d893149c1c76706c5e2d455db8d13768c527c91ea6961be4eabf
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to an exam date sheet, likely used as a lure. The primary malicious IOC is the redirector URL, which likely leads to a further stage of the attack. No scripts were extracted from this sample.

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=10th+compartment+exam+date+sheet+2018 In PDF document text
    • http://files.logancountycore.com/uploads/1/3/2/6/132681634/d6a8b.pdfIn PDF document text
    • http://bomajege.gregoryebarnes.com/uploads/1/3/1/4/131454065/zusonebilogazexado.pdfIn PDF document text
    • http://files.calvaryslofamilies.com/uploads/1/3/0/7/130776487/9b50c2363ba460.pdfIn PDF document text
    • http://gavewax.rnpurcell.ca/uploads/1/3/0/7/130775680/4f274851fe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6288/5541/files/able2extract_converter_free_download_crack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9849/6412/files/61108189234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6713/7438/files/qr_code_reader_apk_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3657/1805/files/dirt_devil_vacuum_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6310/6968/files/fatufivuven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8783/8886/files/pepej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7215/1959/files/genimutupesotujapol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4366/7616/files/iptv_stalker-_rip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2761/1300/files/48769470028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0736/7592/files/12171476599.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A6 5512 bytes
SHA-256: eadfb335156efce293e95d71b69eb66257574af9a663f09079047f2e0271b9fe
font_01_sfnt_off0000891b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x891B 1936 bytes
SHA-256: 73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190
font_02_sfnt_off0000925e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x925E 10684 bytes
SHA-256: ff6857e9fc624123a733634940dbac388100a6f1aaf8579b1403d1cee8e7247b
font_03_sfnt_off0000b6dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DC 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2