Malicious PDF — malware analysis report

Static analysis result for SHA-256 703a7836589ce46f…

MALICIOUS

PDF

48.3 KB Created: 2020-08-04 12:06:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e4f1465f5d1ad62ebc280ed47bb9bec SHA-1: e912aa3327a7c94569fd1c5f432b46b3935fe38f SHA-256: 703a7836589ce46ff90ad5cf59e2627709d1a882387fe0cffbeac2fb99255f1c
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised with a keyword related to vitamins. It also exhibits characteristics of a link farm, with numerous embedded URLs pointing to Shopify-hosted PDFs, likely for SEO manipulation. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious content, potentially for phishing or malware distribution.

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.ru/pify?keyword=alimentos+ricos+vitamina+b12+pdf
    • http://files.seminariogloria.org/uploads/1/3/0/7/130775295/9969435.pdf
    • http://files.michaelbrownslawoffice.com/uploads/1/3/1/4/131438111/7a9b21192bcd.pdf
    • http://files.veronicaperytphotography.com/uploads/1/3/0/7/130776601/manodonobifimarikub.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/8678/2371/files/wigaropofozomazagokisepiv.pdf
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/honda_gcv160_lawn_mower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/28023206174.pdf
    • https://cdn.shopify.com/s/files/1/0432/7522/3200/files/89589926875.pdf
    • https://cdn.shopify.com/s/files/1/0431/1239/9010/files/87665973329.pdf
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/battlestar_galactica_order_to_watch.pdf
    • https://cdn.shopify.com/s/files/1/0428/7895/9775/files/prism_video_converter.pdf
    • https://cdn.shopify.com/s/files/1/0431/5067/2026/files/papawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6596/files/16277777690.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/dobetowenikakudafudok.pdf
    • https://cdn.shopify.com/s/files/1/0431/1125/2132/files/bagaleb.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/xavozagig.pdf
    • https://cdn.shopify.com/s/files/1/0427/9356/6364/files/55576603099.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9213/files/42911263644.pdf
    • https://cdn.shopify.com/s/files/1/0431/8494/7357/files/51797969084.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eb1.bin
8354e4341d9e19a095429716dbe669d78ba8f2260e8d533509a04b4b85ea5cae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB1 5460 bytes
font_01_sfnt_off00008129.bin
153b0d6096d1c5e947dc7fbbb9a5e30436dcbd90d87299b2e0a6890e86e15f64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8129 11212 bytes
font_02_sfnt_off0000a5af.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5AF 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.