Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ebc9924a4f950ce…

MALICIOUS

PDF

36.1 KB Created: 2020-04-09 20:40:59 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 05ae7d66dcbfc9085dba885cbe0c079f SHA-1: 9d2d325ba9df96f1a25fd0ce87dfda4599fda18f SHA-256: 3ebc9924a4f950ce4fe37f35b879e2d0c3b464a23c1605d92d56cb5fc80d3176
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar domains. The document body text, though partially garbled, suggests a lure for a game download. This indicates a link farm or SEO poisoning technique used for malware distribution or phishing. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://eimeifoundation.org/uploads/1/3/0/6/130604983/130604983.html#sinir+k%C3%BCp%C3%BC+oyunu+indir
    • http://vbisdbehavior.com/uploads/1/3/0/5/130551944/9498480.pdf
    • http://powellmethodcrashcourse.com/uploads/1/3/0/3/130323936/fb2eb9c1c29a0e3.pdf
    • http://wecompletenservice.com/uploads/1/3/1/4/131408061/346442.pdf
    • http://facultywritingretreat.com/uploads/1/3/0/2/130289173/6d79c178c6887.pdf
    • http://whoaskedmeanyway.com/uploads/1/3/0/2/130272365/tevejifupupizimiruto.pdf
    • http://caledoniancall.org/uploads/1/3/1/3/131384173/sepagosekulixe.pdf
    • http://hopefordysautonomia.org/uploads/1/3/0/9/130969236/92c9a8b23.pdf
    • http://pawlouse.com/uploads/1/3/0/7/130774965/befipokusadejujadap.pdf
    • http://123scr.com/uploads/1/3/1/1/131164063/gisofudutosufabapef.pdf
    • http://midnightsunpearls.com/uploads/1/3/0/5/130546024/sipot-nibili-vujumuselekez-kixumesemavi.pdf
    • http://ewappliance.com/uploads/1/3/0/6/130603928/da6c386b5d9.pdf
    • http://mallorybusinesspark.com/uploads/1/3/0/2/130289630/1467924.pdf
    • http://cliccaestampaonline.store/uploads/1/3/0/2/130271137/wufiwurilifikon.pdf
    • http://comicsgal.com/uploads/1/3/0/8/130814115/wepezo.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061fe.bin
21ba61871cc107c87a554feb54140196ada75e2818e8a2ba671b1128b3efa0b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 8972 bytes