Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebfaf9400e29eb3c…

MALICIOUS

PDF

46.5 KB Created: 2020-04-11 12:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5a6377b15b9fde27ce10222cdacf33e2 SHA-1: fd56fd6972b45bbb6d9845218ee829c878259dfa SHA-256: ebfaf9400e29eb3c9b218fefedf44ea8400ac2a5786d83b653d12b4547e0779d
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files on different domains. This behavior is indicative of a link farm or SEO manipulation tactic. The primary URL found in the document body is http://bkjayinvestments.com/uploads/1/3/1/3/131380251/131380251.html#hunter+s+star+quilt+pattern, which likely serves as a lure to engage the user. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this is not benign.

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://bkjayinvestments.com/uploads/1/3/1/3/131380251/131380251.html#hunter+s+star+quilt+pattern
    • http://strykertech.com/uploads/1/3/0/6/130639493/7198630.pdf
    • http://seamslikely.online/uploads/1/3/0/6/130639746/6942196.pdf
    • http://orlandotreeservice.com/uploads/1/3/0/3/130379354/2ec08.pdf
    • http://apolloaerial.photography/uploads/1/3/0/5/130590410/a4dc7488b4fc50.pdf
    • http://sandpointlakerentals.com/uploads/1/3/1/3/131380469/vazosopi-jenupe.pdf
    • http://mscmyservicecleaning.com/uploads/1/3/0/4/130478470/womad.pdf
    • http://royalcityessentials.com/uploads/1/3/0/4/130483491/favekuwepaxeneg.pdf
    • http://ridethai.com/uploads/1/3/0/8/130814749/3427902.pdf
    • http://thetrailyouth.com/uploads/1/3/0/4/130483454/gojose.pdf
    • http://productdesigntools.com/uploads/1/3/0/4/130488701/5458368.pdf
    • http://islamujereslodging.com/uploads/1/3/0/9/130968906/3273232.pdf
    • http://jenloughagency.com/uploads/1/3/0/7/130739415/8731812.pdf
    • http://onespeedchopshop.com/uploads/1/3/0/6/130621686/6186157.pdf
    • http://kirkpatrickgallery.com/uploads/1/3/1/4/131452941/fec4911c8d4.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_off00008cf6.bin
92b50491bf3d0bd153755afa243d70ac4dcbcccf5ad8ad860c6302949dc816f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF6 8132 bytes

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