Malicious PDF — malware analysis report

Static analysis result for SHA-256 86850afd75709754…

MALICIOUS

PDF

53.7 KB Created: 2020-08-19 08:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f27f8e7cde621bb234668eec6d883ef SHA-1: 371aaae1b86aece303a5e0fe79e162e48075a1bd SHA-256: 86850afd75709754efaed808d678f4fea75ad94f0de6d18b070e10ffb204b5da
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=star+wars+movies+free++in+tamil'. This URL is presented within the document body, suggesting a social engineering lure for free movie downloads. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The primary malicious IOC is the ttraff.com redirector, which likely leads to further malicious content or malware.

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=star+wars+movies+free++in+tamil
    • http://lotizoku.tylerbiology.com/uploads/1/3/2/3/132302780/sesotalusixekutudit.pdf
    • http://gekilew.srphotographymelbourne.com.au/uploads/1/3/2/6/132695675/5504901.pdf
    • http://felemo.alaskasummerinstitute2020.com/uploads/1/3/1/4/131453674/c1d1723.pdf
    • http://files.thebrooklynbarberacademy.com/uploads/1/3/1/3/131398362/4a55f85be9edc.pdf
    • http://zuvumowu.heremans-ceusters.be/uploads/1/3/1/3/131382274/gotukuxidevo_wawojelanegi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2130/2946/files/davaxalisexogoraropuvux.pdf
    • https://cdn.shopify.com/s/files/1/0428/5428/5479/files/stardew_red_cabbage.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/57377327792.pdf
    • https://cdn.shopify.com/s/files/1/0427/5086/9671/files/felavar.pdf
    • https://cdn.shopify.com/s/files/1/0429/9961/1553/files/vegijijoxusanaremidamak.pdf
    • https://cdn.shopify.com/s/files/1/0428/3600/0931/files/interview_questions_for_bca_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0438/4364/9698/files/wrong_turn_7_release_date.pdf
    • https://cdn.shopify.com/s/files/1/0437/6087/7729/files/difference_between_curriculum_and_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/sikozebegojogitexabewidag.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
font_00_sfnt_off00007f0a.bin
698ea29dddf434b6a3a03b57efeaf6334a83410dd1a6546c52c2f442fa73eb7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0A 5168 bytes
font_01_sfnt_off0000909b.bin
326d0d42d65bd375d5b55f390517efcfbd0b26c7f54453d7c43ce94769d7d0de
pdf-font-stream PDF embedded font (sfnt) at offset 0x909B 10308 bytes
font_02_sfnt_off0000b40e.bin
8a5952d5e0a00225290cd07651d95d4b925f77f9bc8e82fe8dc29a71fb1668d5
pdf-font-stream PDF embedded font (sfnt) at offset 0xB40E 16260 bytes