Malicious PDF — malware analysis report

Static analysis result for SHA-256 9caee572591f015d…

MALICIOUS

PDF

39.0 KB Created: 2020-07-25 13:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf1793fdbe6c5f23e1675a2c7ffd257e SHA-1: f6461113705db57578288cf4fec202c65ca72cd4 SHA-256: 9caee572591f015d03358d4ef9007a79aaa94b4606528e263527f63948b29861
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly supports maliciousness. The document body, though heavily obfuscated, contains text related to 'idle balls mod apk 2018', suggesting a lure for potentially unwanted software or a scam.

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=idle+balls+mod+apk+2018 In PDF document text
    • http://files.visionquestmusic.com/uploads/1/3/1/3/131380992/siraxobutiwel_diwapapur_defasi.pdfIn PDF document text
    • http://files.beaskeys.com/uploads/1/3/0/7/130775850/087be6.pdfIn PDF document text
    • http://files.amuseartfair.com/uploads/1/3/0/8/130873876/494422.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/1/0432/0608/2717/files/83768561207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/kozebop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0069/files/57835362210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/24604705091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/77244398567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8157/8136/files/71021892708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/kasusamatewilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8527/4024/files/zakumit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/21466590214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3181/1480/files/93481817990.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_off00005c23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C23 5224 bytes
SHA-256: 8fa06e7a278dad16fe74dce03b85e3841303afc255d615c70e9841b5fd93fba6
font_01_sfnt_off00006dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDE 9752 bytes
SHA-256: 751281868c264b59b1966e9212993680bc83f837f107b61ac8e8daef1f9ddca5

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