Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f78e4c859475f1…

MALICIOUS

PDF

40.3 KB Created: 2020-08-15 03:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5775be0929c76160ab6cf6594bded7ed SHA-1: ba3755bbe7dfa98a365473b5bb553b4b49724922 SHA-256: 47f78e4c859475f166ef8d920b04069d6462b04dddf28053f657b619aafe6f21
128 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and a large number of embedded links, many of which point to external resources. One of the embedded links, 'https://ttraff.ru/pify?keyword=tv+program+guide+canberra', is flagged as a malicious redirector. The document also contains a link farm heuristic, indicating a large number of outbound links, with several pointing to Shopify domains. The presence of a malicious redirector and the link farm suggest a phishing or content-scraping attack.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=tv+program+guide+canberra
    • http://files.beinghumaninstem.com/uploads/1/3/1/3/131379510/xenap.pdf
    • http://files.crsbboosters.org/uploads/1/3/1/8/131860787/zavitonuxirutiz.pdf
    • http://sesaxig.melissasterry.net/uploads/1/3/1/4/131482952/5624286.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/wosomak.pdf
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/toputime.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/stryker_t2_humeral_nail_technique_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/vekisikokozo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/23395216703.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4465/files/dilovefutikedu.pdf
    • https://cdn.shopify.com/s/files/1/0428/1014/6983/files/bebifumedapilejedesuvag.pdf
    • https://cdn.shopify.com/s/files/1/0438/3368/8226/files/biochemistry_questions_bank.pdf
    • https://cdn.shopify.com/s/files/1/0435/4434/6792/files/1134034711.pdf
    • https://cdn.shopify.com/s/files/1/0429/8378/4601/files/genetic_engineering_advantages_and_disadvantages.pdf
    • https://cdn.shopify.com/s/files/1/0440/2970/6390/files/boxetelajawegoruboxekekuv.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_off00006060.bin
e921719de14173bcfa13558bc27f21093a2a4035cfb06d7aa23e8d175c5bd94e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6060 5332 bytes
font_01_sfnt_off0000726b.bin
bc921a12e5688e4f80dedf77e417a53e492402c14f8720d26856fdb3a7e17c41
pdf-font-stream PDF embedded font (sfnt) at offset 0x726B 10012 bytes