Malicious PDF — malware analysis report

Static analysis result for SHA-256 f089c699e607d6e7…

MALICIOUS

PDF

48.4 KB Created: 2020-08-06 09:29:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73cd0aff4f29f693bf4fb521f632e3a9 SHA-1: e3b3b900831ea7b9eff7e9b1509b723a29d6f984 SHA-256: f089c699e607d6e7881d954c5a183a8fd054e1fcbf131fef7d628935568c9e3d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, 'ttraff.ru', which is likely intended to lead the user to a malicious payload. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to a phishing or malware distribution site. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=ataullah+iskenderi+hikem+i+ataiyye+pdf
    • http://files.camdenwrestling.com/uploads/1/3/0/7/130739340/9c5de6228f.pdf
    • http://files.themanchesterscoop.com/uploads/1/3/0/7/130776082/5684972.pdf
    • http://files.onemindspiritualservices.com/uploads/1/3/0/7/130775379/xakotimetosim_vewowaxedug_desuzumoxesiwa_jepifizixumo.pdf
    • http://files.bronxvilleteachers.org/uploads/1/3/1/0/131070212/2105959.pdf
    • https://cdn.shopify.com/s/files/1/0433/6756/3418/files/purebobitoduzago.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/17906463791.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/rotejixatagukejivixene.pdf
    • https://cdn.shopify.com/s/files/1/0439/3923/3960/files/95151765749.pdf
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/difference_between_r_and_r_studio.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gujogu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7730/4484/files/43178180084.pdf
    • https://cdn.shopify.com/s/files/1/0430/7383/1073/files/voltage_regulation_of_transformer.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/97955226601.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/zukowibupoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/0346/2303/files/41018940810.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
stream_005_off00009952.bin
05e117ee74137db112db8763811f5e7f93744296eb47acea17f1a34e5b500386
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9952 17908 bytes
font_00_sfnt_off00006276.bin
8bdae9b1cff9fa8b0b8d0ea75b75ae6768a42e3c34d4e18b3b5f732b7e699de7
pdf-font-stream PDF embedded font (sfnt) at offset 0x6276 5436 bytes
font_01_sfnt_off000074cd.bin
fbeb7862710955e50cfd8995ce49a6880680851a2c65b385eb6975dba218f643
pdf-font-stream PDF embedded font (sfnt) at offset 0x74CD 10612 bytes