Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e689a0cf3efc80e…

MALICIOUS

PDF

38.4 KB Created: 2020-08-08 21:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7765c5aab7f13ec139466bc91962bd43 SHA-1: 6e00673ba393b65a94ea0e7137314675a71e9e68 SHA-256: 3e689a0cf3efc80ef074741135b16376c64fb716f8dbdae8c69a219afb58ff3f
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 PDF files hosted on various domains, including a known malicious redirector. The document body text, though partially obfuscated, includes the URL that triggers the malicious redirector. This suggests a phishing or social engineering attack aimed at directing users to malicious content.

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=hey+soul+sister+piano+pdf
    • http://mugojevi.totaltravelsystem.com/uploads/1/3/0/7/130776208/givogegazexonu.pdf
    • http://files.smithridingandtraining.com/uploads/1/3/1/8/131857717/sezakeguxuwajaji.pdf
    • http://files.arkansasyouthconference.org/uploads/1/3/1/6/131637919/6364220.pdf
    • http://xamexusen.wordbranchmedia.com/uploads/1/3/1/3/131380213/dedusamuxanasavor.pdf
    • https://cdn.shopify.com/s/files/1/0429/8362/0767/files/bobidusotusubetugimezega.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pusowa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7108/6485/files/zonaviginafuka.pdf
    • https://cdn.shopify.com/s/files/1/0430/9542/5191/files/86597052895.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/bangkok_rail_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/bokepepikusosokatune.pdf
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/wepijigorakenenufan.pdf
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/suwapulojijikazudipofib.pdf
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/epilepsy_nice_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/gulerewinoreruruzov.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/concepts_in_thermal_physics_blundell.pdf
    • https://cdn.shopify.com/s/files/1/0433/2430/9659/files/oxford_biology_dictionary.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_off00004ba0.bin
5cbbc86acba21f6ae2ea709c6f423fed8f932d056dd28ce8d252811435959254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA0 5100 bytes
font_01_sfnt_off00005d0e.bin
fddf2f01f8b37ca7006ffeaf7b45eb271b3b6da9fcc4fc093f6e67b141d65298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0E 14424 bytes

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