Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03b1dac2541811c…

MALICIOUS

PDF

38.8 KB Created: 2020-08-06 13:03:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b2951b2bcd9a3745cdeba7c8cc0514c SHA-1: 79ffcca97ba23224c892b50840d30c4d6e148fc5 SHA-256: c03b1dac2541811c4aa887915116a002e958b19ed48e3307b7ee08b4e92e4f14
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=anemia+ferropenica+y+embarazo+pdf'. This indicates a link farm or redirection tactic designed to obscure the ultimate malicious destination. The document body contains garbled text and metadata suggesting it was generated by wkhtmltopdf, likely as a lure.

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=anemia+ferropenica+y+embarazo+pdf
    • http://files.walkerthomasadams.com/uploads/1/3/0/9/130969992/4553516.pdf
    • http://files.oasco.org/uploads/1/3/1/6/131636655/kumazodib.pdf
    • http://files.gottfried-schweiger.org/uploads/1/3/0/8/130873804/2331787.pdf
    • http://files.waitingonourmiracle.com/uploads/1/3/1/3/131378771/c7774.pdf
    • http://files.hammondminiatures.com/uploads/1/3/1/3/131382078/a2ad6c23f.pdf
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/jaxujuvowoxifefexuvow.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69901941500.pdf
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/60713697790.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/setixinojed.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1944/files/fifeduwivizalewosowaze.pdf
    • https://cdn.shopify.com/s/files/1/0435/5004/8420/files/mifedulemivafoted.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/77759395812.pdf
    • https://cdn.shopify.com/s/files/1/0440/3222/9541/files/terokiwibotuxerizunatakiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/kapuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/6377192735.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_off000058a8.bin
c797924ee5b520f9e320f12e9ba54877e1566d1477e382781e555a090365e51e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58A8 5372 bytes
font_01_sfnt_off00006ae8.bin
9032a97af5dc6f44c899b8b3a37779c9e41b2031b104ef4230d85ed0fa26d902		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE8 10508 bytes

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