Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a3e68674cd3c7bb…

MALICIOUS

PDF

49.0 KB Created: 2020-08-10 12:57:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66212d65ccde4125f2aa077f6b2ce73a SHA-1: ffb0df090980fcf756398f359e776e68f9da63b2 SHA-256: 8a3e68674cd3c7bbe3752061922fae672be68fca80006db76dbc962887c4f841
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links to external PDFs hosted on shopify.com, indicating a link farm strategy. The primary intent appears to be redirecting the user to malicious infrastructure under the guise of an aptitude test.

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.com/pify?keyword=%25E0%25B8%2582%25E0%25B9%2589%25E0%25B8%25AD%25E0%25B8%25AA%25E0%25B8%25AD%25E0%25B8%259A+aptitude+test+pdf In PDF document text
    • http://files.cancercantkilllove.com/uploads/1/3/0/7/130738652/nifobatuju-furoke.pdfIn PDF document text
    • http://files.tanyacollier.com/uploads/1/3/0/7/130775980/8089867.pdfIn PDF document text
    • http://files.ekilmp.com/uploads/1/3/2/6/132696210/gixurige.pdfIn PDF document text
    • http://files.thecathedral.us/uploads/1/3/2/8/132815220/2816990.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8833/files/vanem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0925/3286/files/48814860117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3045/2123/files/auto_mechanics_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/5402439697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/36979481216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/zedabuxozusavudoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62894204366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9127/1586/files/xisozetonivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7074/files/52547741589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/retire_early_with_real_estate_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/wotesevizebadorabawajikil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2059/7923/files/wukojeforidipazaxovosej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/mekanisme_terjadinya_pingsan.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F1 4812 bytes
SHA-256: 0daaef819f02dd1040b6f1ebcd179fd15f8d9823bca3869776ceb852c6bc0c1e
font_01_sfnt_off0000685f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685F 6632 bytes
SHA-256: 4496c7ba22ff534d6d3eef721fe07f54681c2f75ea669fa3c57c1979068eb6db
font_02_sfnt_off000079ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BA 8800 bytes
SHA-256: c9ff7d172f26ecea76ca7cf745211b16de736d885e69d2dbf66c475ae20491d6
font_03_sfnt_off000091e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E5 10144 bytes
SHA-256: 2f60974e369031446a9dfcf8bc5d107b83c3da3e9a407b7de0c8a46e7998c422