Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb1578b69507254c…

MALICIOUS

PDF

51.1 KB Created: 2020-07-20 12:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 619f32b803e90453ce224cbe19932bc8 SHA-1: 18fa4bac9a438f30294a5ec46e4e648f42432076 SHA-256: bb1578b69507254cb411fa6e88479cf294c45f5ff82fee903a9d020a09246a20
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a heuristic firing indicating a 'PDF_SEO_LINK_FARM'. One of these URLs, 'https://ttraff.cc/wb?keyword=corrupt%20penelope%20douglas%20pdf%20chomikuj', is flagged as a malicious redirector. The presence of numerous links, including a malicious redirector, suggests an attempt to direct users to potentially harmful content.

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/wb?keyword=corrupt%20penelope%20douglas%20pdf%20chomikuj
    • http://files.foodanimalbiosciences.org/uploads/1/3/1/4/131453943/zokusemuxojel_tatenufemokab_xudiki.pdf
    • http://files.goodshepherdogden.org/uploads/1/3/0/7/130775623/dabimazeso-ditoduxaxowuvix-vovumelonivup-lapijosaga.pdf
    • http://files.ibbyireland.com/uploads/1/3/1/6/131606397/2315264.pdf
    • http://files.hammermalt.ca/uploads/1/3/1/0/131070849/097fff85.pdf
    • http://files.subtleawakening.com/uploads/1/3/1/4/131410009/5616257.pdf
    • http://files.goodshepherdogden.org/uploads/1/3/0/7/130775623/dabimaze
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/99821209817.pdf
    • https://cdn.shopify.com/s/files/1/0431/1361/1421/files/jolokos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/sarisobuvebifafutekovew.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/65283159571.pdf
    • https://cdn.shopify.com/s/files/1/0429/5072/1699/files/12815733711.pdf
    • https://suxeniruwip.files.wordpress.com/2020/06/81907512684.pdf
    • https://mewazaxudo.files.wordpress.com/2020/06/fivirafe.pdf
    • https://livafoke70179874.files.wordpress.com/2020/07/denupagamudafeb.pdf
    • https://mifiwolimil505045600.files.wordpress.com/2020/07/xasonakaduzibe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4314/4359/files/65714529872.pdf
    • https://cdn.shopify.com/s/files/1/0438/9486/6088/files/wudaburofa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5387/5357/files/tifutofugesul.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/59484987809.pdf
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/belonop.pdf
    • https://cdn.shopify.com/s/files/1/0433/7722/9982/files/vufefip.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0431/3785/9735/files/71316173375.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_off00008910.bin
dd85a245d04055b42af65f34ad8f81bfc075ace4921803ad58c4a0045f1ab2de
pdf-font-stream PDF embedded font (sfnt) at offset 0x8910 5616 bytes
font_01_sfnt_off00009c04.bin
f0f3c95824349aa1b437dfe17113c242f0b6e877665b9767bb710f17da96f608
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C04 10244 bytes