Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88f51a0d7cd5551…

MALICIOUS

PDF

41.7 KB Created: 2020-08-19 14:27:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79b569b6a16b9fd0e25282490a9c4dff SHA-1: a7f5826a2cad7dd7d38ba4de861a0e552fe4211a SHA-256: e88f51a0d7cd5551d76034a1f3995b14e85d34f3cb28779560ff0ac2df7d7733
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. This URL is presented in the document body as a driver download, indicating a social engineering lure. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted from this sample.

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=asmedia+usb3.+1+driver
    • http://files.firmfoundationchristianacademy.com/uploads/1/3/2/6/132695455/nudiwapogaj.pdf
    • http://files.leaderscalltoadventure.com/uploads/1/3/0/7/130739032/xiwotabukova.pdf
    • http://files.auseras.com/uploads/1/3/0/9/130969899/749392.pdf
    • https://cdn.shopify.com/s/files/1/0443/8127/4278/files/hey_you_pink_floyd_guitar_tab.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/bodybuilder_s_kitchen.pdf
    • https://cdn.shopify.com/s/files/1/0440/8459/2805/files/round_function_in_oracle.pdf
    • https://cdn.shopify.com/s/files/1/0430/3834/3322/files/fetal_pig_dissection_labeled.pdf
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/58412620106.pdf
    • https://cdn.shopify.com/s/files/1/0431/1970/6273/files/napuburoborivaziwataze.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/bidituxodisu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8273/5006/files/95431344696.pdf
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/38940513034.pdf
    • https://cdn.shopify.com/s/files/1/0429/4112/0679/files/2005_nissan_sentra_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/51739845453.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_off00005e4c.bin
1921b7c2631ae260abda682acfd71580132869ec80db4d9acb9da50b05bf2e18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4C 5376 bytes
font_01_sfnt_off00007084.bin
af184c6f4beaab555caa310f61e430f867449e2e47c7ea3bb528b295fbdd954e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7084 13152 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.