Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe80df381b73261…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 06:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8daa4a7f1553e2f505e579b99e8bed6e SHA-1: 23f211bd09c97e172b90455f0e37a59b8ecee745 SHA-256: bbe80df381b7326151528d38f78cd1ec27f60673ff9fb410ab7d5e033d705173
120 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=blood+agar+media+preparation+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious content through a link farm. 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.cc/pify?keyword=blood+agar+media+preparation+pdf
    • http://files.incanonmedia.com/uploads/1/3/0/8/130815277/ravadilonuxoxa_berujojezi.pdf
    • http://files.stgilesconsort.com/uploads/1/3/1/3/131378993/najujofajewoxetep.pdf
    • http://files.cartoonpartysketches.com/uploads/1/3/0/8/130814758/libukuzino.pdf
    • http://files.cathhowe.com/uploads/1/3/0/7/130775050/juxobudokuxa.pdf
    • http://files.renomidtownmassage.com/uploads/1/3/1/6/131607407/da8e24c3f.pdf
    • https://cdn.shopify.com/s/files/1/0434/6537/5908/files/nisebipevokegupopelebij.pdf
    • https://cdn.shopify.com/s/files/1/0436/4910/6073/files/92404615421.pdf
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/2007_chevy_aveo_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0888/3870/files/62062418954.pdf
    • https://cdn.shopify.com/s/files/1/0431/4542/9160/files/71906848082.pdf
    • https://cdn.shopify.com/s/files/1/0437/1516/6357/files/tawepijug.pdf
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/wuruzufokixidipa.pdf
    • https://cdn.shopify.com/s/files/1/0434/8120/2854/files/karabemegebinasonuwuxaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/long_live_asap_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/8913043926.pdf
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/73616952300.pdf
    • https://cdn.shopify.com/s/files/1/0432/3806/4296/files/in_aid_of_myreque_osrs.pdf
    • https://cdn.shopify.com/s/files/1/0431/7010/3452/files/70535274333.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_off00006c83.bin
6a0e57d61737c3edd6787c8d838faccfb726ef2c331dd536d7a333e297f8b421
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C83 5232 bytes
font_01_sfnt_off00007e41.bin
d815ad2ccae136474814c6b4ebf48167ec89c7922dc813128116fc5ff99d33ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E41 10164 bytes