Malicious PDF — malware analysis report

Static analysis result for SHA-256 64e8f6746b5bd5ac…

MALICIOUS

PDF

40.6 KB Created: 2020-08-15 22:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0fb6c430f0487b4e4ceff2baad337a8 SHA-1: 3bee5fbcf701b0bf8faf8e0f76590c126751052b SHA-256: 64e8f6746b5bd5acc0da2aa1117d4f9851239a003d598b0d079a7017ec9a3781
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a deceptive title and numerous links, including a critical malicious redirector at https://ttraff.cc/pify?keyword=jio+chat+video+call+apps. This redirector likely leads to a phishing page or further malware. The presence of a malformed exploit stream and a high ML classifier score further indicate malicious intent. The document body itself is heavily obfuscated but contains the malicious URL.

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.
  • Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
    A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
  • 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=jio+chat+video+call+apps In PDF document text
    • http://files.michaelmackinomara.com/uploads/1/3/1/4/131453494/1934221.pdfIn PDF document text
    • http://files.evolvingminds.net/uploads/1/3/1/0/131071164/d33571.pdfIn PDF document text
    • http://files.playfullyrigorous.com/uploads/1/3/1/6/131637484/2569475.pdfIn PDF document text
    • http://sapusi.techlitecorp.com/uploads/1/3/1/4/131453249/mekisirigobaxiluwi.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/1/0430/6331/2533/files/tabof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3055/9390/files/49193679506.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/tuwikasajidanogojedemig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4432/1945/files/chromecast_screensaver_photos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9172/0347/files/minecraft_village_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8686/3783/files/nevimelowamufemipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2511/0952/files/android_developer_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/40428978764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4953/2057/files/3325764407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1013/files/58211592566.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_off00006106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6106 5116 bytes
SHA-256: 4a750815f0a2719992ee5ea11ca6f8691da85ae14d8d92cbb44d9e25ed532706
font_01_sfnt_off00007267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 10420 bytes
SHA-256: 98d276e8620aa58dab96d29460cd4ba5d43ef3602a495b2d925c7f0b03d7028c

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