Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cabe1388c36ea58…

MALICIOUS

PDF

45.2 KB Created: 2020-08-15 07:36:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57ff6dd3cc9972c0c701ece5c65f9ca1 SHA-1: 18816e9d9297e83a7f6d149b53f65fb442b2f1ae SHA-256: 9cabe1388c36ea58e2b4ee0e851798b772921f7df333822dc877adaa90aa1f68
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is further associated with a link farm heuristic. The document body, though heavily obfuscated, contains a reference to 'autocad 2019 xforce keygen 64 bit' and the malicious URL. The presence of a security bypass instruction suggests an attempt to prevent detection. The primary attack vector appears to be a lure for software keygens, directing users to potentially malicious sites.

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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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=autocad+2019+xforce+keygen+64+bit In PDF document text
    • http://xatekovew.sandpointstakecommunications.com/uploads/1/3/1/4/131407406/fefopu-naratafuzu-wubepamalav.pdfIn PDF document text
    • http://files.ajaanimations.com/uploads/1/3/1/6/131606874/bivufoganeruveko.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/1/0433/0687/7080/files/lavijado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1668/1629/files/jeroze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7589/5447/files/viginozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/kagizelokopase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5376/9126/files/31368122571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1190/7488/files/38649859981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/29983234497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/jasimelezubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6825/1548/files/beauty_and_the_beast_musical_full_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/89429955124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/21214369147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3850/7169/files/35021096455.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_off0000666b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666B 6068 bytes
SHA-256: 23a833d4a4d09309ead82572c6628557a2e8fdfbe2b0df21afb1f397dcd0bfa3
font_01_sfnt_off00007b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2A 14408 bytes
SHA-256: 7e70b64a22bda6aed831e2e49275dbdb1509d1d5876d5e1060cd4d3e33212f34

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