Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfa00a7ffd502650…

MALICIOUS

PDF

35.3 KB Created: 2020-07-08 20:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74a08a5c87c430cf9a21a95f044444d6 SHA-1: 4836352c212fd833610d6b4dbbbfc0f65b4b1da4 SHA-256: cfa00a7ffd5026500e655d89451b861e82fb002eaf4a268ca81e797b6383ada2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, masquerading as an owner's manual for a 2008 Corolla. These links point to a redirector and a large farm of other PDF files, likely intended to manipulate search engine rankings or distribute further malicious content. The primary lure is the '2008 corolla le owners manual' keyword, which is also present in the document body.

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/wb?keyword=2008%20corolla%20le%20owners%20manual
    • http://files.jovaunholmes.com/uploads/1/3/0/8/130873973/818c81.pdf
    • http://files.williammonaguenativeart.com/uploads/1/3/0/7/130739747/vunidegote.pdf
    • http://files.shahnawazalam.com/uploads/1/3/1/8/131871720/lejugimemesuzed.pdf
    • http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdf
    • http://files.acupunctureworkswonders.com/uploads/1/3/0/7/130775853/kiwobomipomebabu.pdf
    • http://files.rachelsvineyardtucson.org/uploads/1/3/1/3/131383664/0714680.pdf
    • http://files.shizokukaratedo.com/uploads/1/3/1/4/131438234/lomif-joxaw-posegogekumo.pdf
    • http://files.sallysweetland.com/uploads/1/3/1/4/131438249/e377953a8cde1ef.pdf
    • http://files.johnsonvisionassociates.com/uploads/1/3/1/8/131872048/2422429.pdf
    • http://files.openstudiocatskill.com/uploads/1/3/1/3/131380723/1557959.pdf
    • http://files.oagirlsbasketball.com/uploads/1/3/1/3/131380158/biwotusomozuve-desuxenopi-wixisekuv-bosovafafo.pdf
    • https://rusifewejuv.files.wordpress.com/2020/07/98924865834.pdf
    • https://xoxefudisose.files.wordpress.com/2020/07/54812509438.pdf
    • https://pazavapasen.files.wordpress.com/2020/06/farinazejivususi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ropuxikasafomudixaxo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65294746239.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.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_off00004eac.bin
dadede4620b26b8e237797b4b306e5da20e1301791c2181129d6c399c5f170b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAC 5164 bytes
font_01_sfnt_off00006010.bin
75db301723a21614850b452aa8e962cd887e52b579f84b8f97e9359418fb388f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6010 9440 bytes