Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cad07a19e9bcc8d…

MALICIOUS

PDF

47.5 KB Created: 2020-09-20 06:39:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5971fa387853656f90e9cc2bc5c0a584 SHA-1: b80587423e6fd83a14022b47468e5d7ec39f53e2 SHA-256: 3cad07a19e9bcc8dc33bad08224b48aeef55b0ef879ccc9676963f73c8204acc
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 known malicious redirectors or link farms. The document body, though heavily obfuscated, contains text related to 'Tv guide roanoke va cox' and includes URLs that are likely part of a SEO poisoning or spam campaign. The primary intent appears to be directing users to malicious infrastructure through these embedded links.

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.club/wix?keyword=tv+guide+roanoke+va+cox
    • http://loremabu.ffwbcwp.org/uploads/1/3/0/7/130738531/3974662.pdf
    • http://files.klassenlandcattle.com/uploads/1/3/1/3/131398134/629943.pdf
    • http://laxetub.ambricemiller.com/uploads/1/3/1/3/131398473/ef56092cbb4.pdf
    • https://6dcea16a-bb31-4ec5-a626-7c8958c46dab.filesusr.com/ugd/5fd5c1_dcf64bbf1e694b9d9f8d1f560362bfb8.pdf?index=true
    • https://94b6d9db-6e0f-48b7-98dd-5590b5abe703.filesusr.com/ugd/850f07_9ed3cdcc5ce74dd38bdffd6ddd5fe0aa.pdf?index=true
    • https://75d5fe2d-e4d3-4306-9413-d25f120a0557.filesusr.com/ugd/90423f_d48bbc33b8c14c758fb772a90a228928.pdf?index=true
    • https://ce112ea5-6375-46f4-a870-b8f5a3038a14.filesusr.com/ugd/fe0276_f8bdb4ed4bc14350bb8bf84a0ff68496.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/new_sociology_of_education_theory.pdf
    • https://cdn.shopify.com/s/files/1/0431/2665/3090/files/dragon_quest_11_strategy_guide_amazon.pdf
    • https://cdn.shopify.com/s/files/1/0429/8748/7385/files/reducing_size_of_mac.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nijudesiko.pdf
    • https://bbf5ec1a-e33b-4795-936a-822ba9b2964a.filesusr.com/ugd/b28561_2d10d565c33a458487c95d5a4e86a146.pdf?index=true
    • https://af562457-521a-4151-a7a5-e63604d28fe9.filesusr.com/ugd/b56239_27bbdb2ea234474da2336b06cc4c731f.pdf?index=true
    • https://c9dfa125-0027-4a63-947b-e9e5aeda0eb4.filesusr.com/ugd/3724a2_787790e6cd1d453aaf9724ee5c3fafee.pdf?index=true
    • https://2c0ab5cd-264a-46e6-b656-f9aa35bcd17f.filesusr.com/ugd/007d40_06d9d9a3514b4e398fec379a7c471260.pdf?index=true
    • https://7840a9a4-e5ec-4f93-8ff6-148fe8cc319c.filesusr.com/ugd/28146e_184a73ae3e3b4bdea62fe0327f1f00e4.pdf?index=true
    • 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_off00007a24.bin
09c324efb05a5c34903e63844e53652aeeac1a7b188b4c24a43f78b185e6cb9c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 5040 bytes
font_01_sfnt_off00008b67.bin
d82e33aa35ee3d66747edfa172b1a856035b30fdbeb8b1c37a75dd836e29723f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B67 10584 bytes