Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd865cfe26955b1…

MALICIOUS

PDF

40.8 KB Created: 2020-08-30 15:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74cad5d8927bcaf7c25197c02b519cf4 SHA-1: cb2f3968bb5214520031b693cd9cf085229f4d2f SHA-256: abd865cfe26955b1c3aebbcd2b1eb3b581fe51e92b37ca715682611b887d609f
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, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, ttraff.com, is flagged as a known malicious redirector. The document body contains the same URL, suggesting it is the intended lure. The file's purpose appears to be SEO manipulation or user redirection through a large number of 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.com/wix?keyword=fall+for+your+type+lyrics
    • https://cdn.shopify.com/s/files/1/0465/5330/1150/files/interior_design_books_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/5583/2471/files/rorulodaxudoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/tatiwutetoligejimoxabi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/15972689100.pdf
    • https://cdn.shopify.com/s/files/1/0434/9915/9718/files/46203260381.pdf
    • https://cdn.shopify.com/s/files/1/0432/7152/0414/files/west_african_kingdoms.pdf
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/23328084352.pdf
    • https://cdn.shopify.com/s/files/1/0449/5418/9983/files/86283577021.pdf
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/66205825817.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/abstract_algebra_an_introduction.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_off00005615.bin
68d23751a6e5c3c32b360b3eea20fdd0e599e3d1ba8ba8367926313ef082d210		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5615 4844 bytes
font_01_sfnt_off000066b3.bin
1c717023cc1397237a824655aff45afa577f899c9a4401cebb64d7ad6f75d25e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B3 9960 bytes
font_02_sfnt_off000088c5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88C5 4324 bytes

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