Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec8b76fb41a3df0…

MALICIOUS

PDF

46.3 KB Created: 2020-08-23 19:31:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d3ad396d769a15f0b623c31004d6f8f SHA-1: 7811bd51458e206114341ae494ccc1590285efdf SHA-256: 8ec8b76fb41a3df00b6a821344b54eb56478e20a63cd43c28080f2a70d687e3a
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to 'funny whatsapp status video' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, further supporting a malicious intent to redirect users. The primary attack vector appears to be social engineering through a deceptive link.

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=funny+whatsapp+status+video In PDF document text
    • http://tubaramat.notabenetucson.com/uploads/1/3/2/8/132814930/4320682.pdfIn PDF document text
    • http://files.jeremymahood.com/uploads/1/3/1/8/131871658/9383569.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/1/0434/2395/7144/files/tosunexexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5349/9046/files/zokevixuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/81499842071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1625/5645/files/ulcerative_colitis_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/9755106174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3768/files/30987782368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3599/5808/files/ios_simulator_in_xcode_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/renesas_electronics_usb_3_host_controller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/39161670711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/6912/9123/files/convert_base64_to_angularjs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/balistica_forense_jose_jimenez_ortiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8090/8954/files/51756239758.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD7 5008 bytes
SHA-256: c7678abcc2467f76ece563d948fbd2cdb1bd39ae53b1b7f432051a8ff84b7b2d
font_01_sfnt_off00007bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF4 9912 bytes
SHA-256: aa6d93751f74ad069c48bf8c1832f6c7786f605801b83baf907c1dfc4facdd7a
font_02_sfnt_off00009dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD4 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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