Malicious PDF — malware analysis report

Static analysis result for SHA-256 68f0069796bad830…

MALICIOUS

PDF

41.9 KB Created: 2020-08-09 04:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5332d2edc3fc75c5e8f2687084d42e2c SHA-1: 4f30408fc09be0942304dab806992f8b1940bca6 SHA-256: 68f0069796bad83081d4d2ceec4d8762dcafd1e24874854242222eb9b264fa9e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, masquerading as a statistical analysis book, that redirect to malicious infrastructure. The primary malicious link identified is https://ttraff.com/pify?keyword=statistical+analysis+book+pdf+for+m.+com, which is flagged as a malicious redirector. The document's structure and content strongly suggest a phishing or scam attempt designed to lead users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=statistical+analysis+book+pdf+for+m.+com
    • http://files.lyndahiggsphotography.com/uploads/1/3/1/4/131437322/1c28b9d98a.pdf
    • http://files.cofallenhero.org/uploads/1/3/0/7/130740517/46ce7aa420e70.pdf
    • http://files.paulcolmer.com/uploads/1/3/1/1/131163976/ae5f6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/1959/9004/files/85354510642.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/katurumuxelik.pdf
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/wejoveja.pdf
    • https://cdn.shopify.com/s/files/1/0440/2947/7014/files/21497983908.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/82546663400.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/jojabibaxemimoz.pdf
    • https://cdn.shopify.com/s/files/1/0436/1669/8526/files/loparoxuzifufim.pdf
    • https://cdn.shopify.com/s/files/1/0430/7147/1767/files/kozoba.pdf
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/roxijafogagig.pdf
    • https://cdn.shopify.com/s/files/1/0434/9889/7574/files/26453869508.pdf
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/gosizefatoberapidawogu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062e7.bin
841d53043959158dcffde44809fd0d7f0564c345e3febfb8904b3d46c8f0c09a
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E7 5740 bytes
font_01_sfnt_off00007664.bin
ad9e6bc82cb416a569ac0f165a1d94743cb5010b4f5278128f5e98f389fe4272
pdf-font-stream PDF embedded font (sfnt) at offset 0x7664 10600 bytes