Malicious PDF — malware analysis report

Static analysis result for SHA-256 553b23059524e174…

MALICIOUS

PDF

43.1 KB Created: 2020-04-11 09:55:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 506624a458a19d0d291fac1e2429ea4f SHA-1: 7a05b6688595a369d853669ef5b5be5ab3286fd0 SHA-256: 553b23059524e1742ded84278a76ed82ac8865c6026ebee77235c8714a5d5916
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this behavior. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of numerous unknown URLs strongly suggests a malicious intent to drive traffic to potentially harmful destinations.

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://74-123-78-29.mgwnet.com/uploads/1/3/0/7/130775822/130775822.html#everything+everything+pdf
    • http://floydcountyproductions.net/uploads/1/3/1/4/131407867/didedutojojofinorez.pdf
    • http://movinforward.net/uploads/1/3/0/2/130289455/duzulapivikesezipo.pdf
    • http://nickgreen68.com/uploads/1/3/1/4/131437018/adae782530.pdf
    • http://playerscorner.net/uploads/1/3/0/2/130289746/9829748.pdf
    • http://mykcooper.com/uploads/1/3/1/0/131070207/7336435.pdf
    • http://haulmastersmoving.com/uploads/1/3/0/8/130813427/4378379.pdf
    • http://m2sportsandnutrition.com/uploads/1/3/0/8/130813876/lagoga-sitesofavezab-zamuna-jezeketo.pdf
    • http://entrepreneursdesigntools.com/uploads/1/3/0/6/130621596/batefepubiguroze.pdf
    • http://haulmastersmoving.com/uploads/1/3/0/8
    • 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_off00006ff0.bin
afd469394d36a3a8e2c214c294267c0e6c31abe4f5567d2360a762939fed0117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF0 7224 bytes
font_01_sfnt_off00008c7d.bin
f10ffc6a29ada4552e9c63ca5600dc71ce346f8aaf9f7a51c6bf23352dea290a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7D 16164 bytes

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