Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8921736e73e4fae…

MALICIOUS

PDF

34.5 KB Created: 2020-05-15 02:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70358e54e6e598bd37bc14f6aaddcfe4 SHA-1: c04f1f3b20e45fb66c5888385c606ddad812ba02 SHA-256: e8921736e73e4fae1b19ae760690ba9b186a10d7dcf1fc32e6431c921f47ab1c
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO poisoning tactic to drive traffic to potentially malicious content. The embedded document body text, though heavily corrupted, contains references to 'macos catalina iso virtualbox' and URLs, reinforcing the lure. No scripts were extracted from this sample.

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://kuerptyltd.com/uploads/1/3/0/6/130620716/130620716.html#macos+catalina+iso+virtualbox
    • http://ripnrollrugs.com/uploads/1/3/1/3/131384301/3407996.pdf
    • http://coplandia.com/uploads/1/3/1/4/131438500/pobemavapegowelarine.pdf
    • http://twowheelpickerbicycleshop.com/uploads/1/3/1/3/131379706/3421723.pdf
    • http://beatrizgonzalezmusic.com/uploads/1/3/1/8/131856402/9939155.pdf
    • http://faszination-gewalt.com/uploads/1/3/0/2/130271042/ac33f262d30eb.pdf
    • http://1815cio.org/uploads/1/3/0/4/130483990/1650326.pdf
    • http://franklinppnews.org/uploads/1/3/0/4/130483110/9596875.pdf
    • http://jayohphotography.com/uploads/1/3/1/4/131410234/a4470b729cf788.pdf
    • http://sweetlysugared.com/uploads/1/3/0/6/130620704/5f90842.pdf
    • http://amd11z.com/uploads/1/3/0/5/130590243/nexisonanorefi-metamowado-baboni-manisu.pdf
    • http://bonhamshouse.org/uploads/1/3/0/6/130621298/1806b.pdf
    • http://ladieslearnenglish.com/uploads/1/3/1/4/131454549/teredujojetebalobaki.pdf
    • http://chrisglover.org/uploads/1/3/0/6/130603673/8207436.pdf
    • http://prettyproto.com/uploads/1/3/0/6/130603740/xajomid_wakadane.pdf
    • http://galleryeda.com/uploads/1/3/0/5/130589156/a24781.pdf
    • http://emmajamesboutique.shop/uploads/1/3/0/5/130540063/zanodoxekereket.pdf
    • http://deninteractives.com/uploads/1/3/1/8/131871762/4967275.pdf
    • http://healthandaccountability.com/uploads/1/3/0/6/130640239/gukamek-kexivedusi-zixexuzogup-xoxupu.pdf
    • http://texasdeaths.com/uploads/1/3/0/3/130324248/novusamaripar.pdf
    • http://sonicfibre.com/uploads/1/3/1/3/131379384/ridozo-ratekivarivux-risup-guwezevabul.pdf
    • http://delilahfayeart.com/uploads/1/3/0/8/130813663/sozidosigaxexa_noverobop.pdf
    • http://piersongardenandlandscape.com/uploads/1/3/1/3/131383761/ccb5c7d9cc27.pdf
    • http://thezebrawall.com/uploads/1/3/1/4/131437728/9432059.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_off00005cdd.bin
3fb992485aa61dfc261380e0d2658ab1010eb000cd6377fdb106f12b6cdccb9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDD 9668 bytes

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