Malicious PDF — malware analysis report

Static analysis result for SHA-256 b19852441063fde1…

MALICIOUS

PDF

42.8 KB Created: 2020-08-10 08:19:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f98c363c696aa76a5b2620baa509ee SHA-1: 99ece072ea0a4f0970ce0de477d9068cfe0b7cd7 SHA-256: b19852441063fde14cf65a4a2380af944f3be78429c7a561257d36c7b602a817
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also explicitly contains this URL, along with numerous other URLs hosted on Shopify, suggesting a link farm or redirection strategy. The primary malicious URL is used in a lure related to 'adobe pdf reader apps', indicating a phishing or social engineering attempt to trick the user into clicking the link.

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=adobe+pdf+reader+apps
    • http://files.rhodes32.com/uploads/1/3/0/7/130776042/busakoni.pdf
    • http://nupudoko.bellehale.com/uploads/1/3/1/0/131070374/tituwevi_zelem.pdf
    • http://libitug.topographyandink.com/uploads/1/3/0/9/130969723/dipepud.pdf
    • https://cdn.shopify.com/s/files/1/0439/0567/9528/files/past_simple_vs_past_continuous_exercises_perfect_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/1509/2893/files/75072_zip_code.pdf
    • https://cdn.shopify.com/s/files/1/0447/0764/3545/files/advanced_vocabulary_list.pdf
    • https://cdn.shopify.com/s/files/1/0427/3248/6823/files/stephanie_meyer_twilight.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/pukatam.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/auctioneers_act_tanzania.pdf
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/83068715822.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/92128131552.pdf
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/vekojexokanuviwita.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88020392138.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/85708314441.pdf
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/xekepivutokavidumujojavad.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/tenewose.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/66017636194.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c4f.bin
bb7cf918f2e7bda5f4222f75f81c4cb646d9c12c8c5e588116fd2ea73c0cea6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4F 5132 bytes
font_01_sfnt_off00007dca.bin
b587f46c1bfe237c750a84f20d2cf0351e6f1e92ca67ab45e0cda06fbba1daa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCA 9460 bytes

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