Malicious PDF — malware analysis report

Static analysis result for SHA-256 27f956a0d17423a6…

MALICIOUS

PDF

63.9 KB Created: 2020-08-31 07:40:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68be5cd4680e497b34cfe726406c0165 SHA-1: 8d81af790519ffb0b9c33c56612efa3c92e11fa8 SHA-256: 27f956a0d17423a61d73df12f300d3c78629d8e99429fe05e371cd9cd47f2c9a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDFs hosted on Shopify and other domains. One critical heuristic identified a malicious redirector link (ttraff.com) disguised with a keyword related to 'The Dark Eye RPG classes'. This suggests a phishing or scam attempt to redirect users to malicious infrastructure. The document body, though heavily obfuscated, also contains the malicious URL and references to the RPG classes, reinforcing the lure.

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/wix?keyword=the+dark+eye+rpg+classes
    • https://cdn.shopify.com/s/files/1/0437/8565/0325/files/rockin_around_the_christmas_tree_uku.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/37585627986.pdf
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/xaxapiduraguj.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/congenital_gastrointestinal_disorders.pdf
    • https://static.usrfiles.com/ugd/d5cf39_b63522c105824755b70606c2c0df1ce5.pdf
    • https://static.usrfiles.com/ugd/c12414_f7c719667ef749bdab2d3d33d6316755.pdf
    • https://static.usrfiles.com/ugd/63d3ad_d32005f440fe4a10b3efeeda8b728074.pdf
    • https://static.usrfiles.com/ugd/b58d21_c3d0063915c04f13847eb29e54227ea6.pdf
    • https://static.usrfiles.com/ugd/73c254_26c1614bbf274e67b7088abe3940a0bd.pdf
    • https://static.usrfiles.com/ugd/cf79db_a10caab73c934602a06f4067059e60db.pdf
    • https://static.usrfiles.com/ugd/30e015_c7cb022f4f2f4555b9dd97fe935243df.pdf
    • https://static.usrfiles.com/ugd/7598fa_110e6b19a4b9419487ae7bf93dff4f92.pdf
    • https://static.usrfiles.com/ugd/b58d21_4e5e3c20d6904e0fa5de73c2cb133bf3.pdf
    • https://static.usrfiles.com/ugd/b8c837_5e3700100bf8468690f178499c8e90fc.pdf
    • https://cdn.shopify.com/s/files/1/0437/9725/0205/files/zabolimoweb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9812/9062/files/68222373671.pdf
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/wogodum.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/10851873857.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_off0000bc43.bin
10e44cb235afe32f18a7558b6e74cfbadf40badffedcd4ac0206e629f354efeb
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC43 5448 bytes
font_01_sfnt_off0000cecf.bin
662b651190be78782be214d55b714b6c975130891ec232c27c3e4c20897a4dee
pdf-font-stream PDF embedded font (sfnt) at offset 0xCECF 10420 bytes