Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb3076f484313c9…

MALICIOUS

PDF

49.3 KB Created: 2020-08-24 00:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cb7bb1777d3dffa6390aed8915a3381e SHA-1: 46a6972b484b387d712c583654153cc354fc8384 SHA-256: 8fb3076f484313c9ec89aada59d13dc47e5add63553f7a5bfe042ad5cc9720ba
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector (ttraff.cc). The document body, though malformed, contains text related to 'Angkor wat temple guide', likely a lure to disguise the malicious intent. The presence of a link farm and a critical heuristic firing for a malicious redirector strongly indicates this PDF is designed to lead users to harmful websites.

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=angkor+wat+temple+guide In PDF document text
    • http://files.discovernectar.com/uploads/1/3/1/6/131606674/fuzigakakapivum.pdfIn PDF document text
    • http://files.deanalegassick.com/uploads/1/3/1/8/131856283/zigefasev-bexipilusolidu-nusiwabo-defoxitub.pdfIn PDF document text
    • http://sizukewix.7240club.com/uploads/1/3/1/4/131453060/xelodate_wesofufo_duvotumilokob.pdfIn PDF document text
    • http://sijinix.keatinholly.com/uploads/1/3/2/7/132741194/vuxoboson.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/1/0431/8088/4129/files/practice_4_times_tables_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2449/9367/files/pefobefomelap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5740/4318/files/ali_baba_and_the_40_thieves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/tajevofoluxetatamajab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/kaposi_sarcoma_and_hiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/49437996452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/86091371554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9992/1315/files/31033140833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3821/files/sap_fi_accounts_receivable_and_accounts_payable.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_off000082a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A7 5244 bytes
SHA-256: e18cb0905a86e5d5a024628af51c862ac3d3e4a05031c0adbf1f35d3e83a1c93
font_01_sfnt_off00009471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9471 10596 bytes
SHA-256: 49f6b346ce3cc557fab895fef44c8cb68ee0dbd3ecfafbeccc298e5dd4ece229

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