Malicious PDF — malware analysis report

Static analysis result for SHA-256 2346fef1a8dd609c…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 03:25:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bc6da00cf7a04f67910378c902a0adb SHA-1: bc0ce66727af00ddc7117f6185b02447034c2ee3 SHA-256: 2346fef1a8dd609c8a04f22f3fed0a60b87a7dd491ccea848e6e914b6f6774a8
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 benign Shopify domains but are likely part of a link farm. The primary malicious indicator is the link to 'ttraff.ru', a known malicious redirector. The document body, though heavily obfuscated, contains keywords related to the malicious URL, suggesting a lure to generate traffic. 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=black+background+4k+free
    • http://files.jamietayloronline.org/uploads/1/3/1/4/131483955/3931428.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/loving_vs_virginia_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/75709733450.pdf
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/story_map_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/46576018235.pdf
    • https://cdn.shopify.com/s/files/1/0432/6142/7867/files/72618400497.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/70209407083.pdf
    • https://cdn.shopify.com/s/files/1/0433/9151/6826/files/gayatri_mantra_meaning_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0437/5884/6109/files/60230235665.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_off000051af.bin
af3eb3493e6b0401cd8d458072fc785e87fa2e07caa48a14764cd1732b6ef7e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51AF 5352 bytes
font_01_sfnt_off000063f7.bin
35a31bdea271cae2a7002a5a66e502e979113772775730c3feec3f2d5e512725		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 10132 bytes
font_02_sfnt_off000086e6.bin
0646a63a478fe53468b8dbbe05b608d617a04836cde27f490c8d0ce00ae8a9f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86E6 16164 bytes

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