Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cf33c03f9299fd5…

MALICIOUS

PDF

39.9 KB Created: 2020-08-03 02:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9308c68923a27ff8ece2921e113f84f9 SHA-1: 614d67eb5ce5d7e3b125941be488f611a4b88048 SHA-256: 1cf33c03f9299fd52e70fda4768a9af3450bc31d52032f88f4afd1ef8539ea7d
234 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a lure for 'Gta san andreas trainers'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this link points to known malicious infrastructure. Additionally, the 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document's intent is to trick the user into downloading a password-protected archive, a common tactic to bypass security gateways. The embedded URLs, including the primary redirector, are the highest priority IOCs.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=gta+san+andreas+trainers In PDF document text
    • http://files.jpguiao.com/uploads/1/3/0/7/130775537/dipoxukakosikez.pdfIn PDF document text
    • http://files.busseltonrifleclub.com.au/uploads/1/3/1/4/131408942/funajatuz.pdfIn PDF document text
    • http://files.myceia.org/uploads/1/3/1/0/131070713/4218354.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/1/0430/2897/1674/files/81618271508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9050/1020/files/26759609470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0831/8878/files/debezepokuxejizejoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/zelijasafexiwiwawuzowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/gilorebevopopijotomotudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4049/files/19130936738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/mofabugaduzikalow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2857/8467/files/javascript_project_ideas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2064/7576/files/bekagenubaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1718/files/91792702274.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 4

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_off00005f14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F14 4820 bytes
SHA-256: cef09ca03da885119f441490d32427acfaa9b812389f4cf2d95a19b7ae683456
font_01_sfnt_off00006f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F82 10420 bytes
SHA-256: 3e8f4bdecb9e0d8d22dd6f056218211cd02f4461d99f75c583d50299df8c681a

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