Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad45e0f181db7d0b…

MALICIOUS

PDF

43.8 KB Created: 2020-08-18 17:33:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9965b22337ddfa911a73221086eefd2c SHA-1: 8e0a167ce13b0c0428223fe29257bf47ccf4a035 SHA-256: ad45e0f181db7d0b9dbe58a2e5c8f0b1fd136df7d6662477957d575c52b51e17
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, with one critical link identified as a malicious redirector on ttraff.com. This suggests a phishing or malicious redirection attempt. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=eclipse+android+google+maps+example
    • http://files.moonspherestudios.com/uploads/1/3/1/3/131383838/zisuforutigel-vomexolokonenon-xizujabufaz-jisumegu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6072/files/rudizan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bipifapokuwegi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3228/9178/files/ventilacion_alta_frecuencia_neonatal.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/mepixu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2737/3990/files/brocade_m6505.pdf
    • https://cdn.shopify.com/s/files/1/0440/2675/7270/files/46332199934.pdf
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/pujivexavepanebege.pdf
    • https://cdn.shopify.com/s/files/1/0450/8162/4739/files/clinical_anaesthesia_barash.pdf
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/maweruregi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/72256374931.pdf
    • https://cdn.shopify.com/s/files/1/0434/7035/6632/files/26935382617.pdf
    • https://cdn.shopify.com/s/files/1/0434/6803/0102/files/motorola_h720_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006151.bin
d946fac5c3b572362308b95691def540751fddcf4d4e7d663e319a6af410d742		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 5124 bytes
font_01_sfnt_off00007292.bin
dc744a4adb8819ab4f98bf63005a0b027dfc38afb160fd3cdb90bae9a141e3ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7292 9916 bytes
font_02_sfnt_off00009482.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9482 4324 bytes

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