Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaaccf7d7368237d…

MALICIOUS

PDF

37.3 KB Created: 2020-05-13 04:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: bbc531e566ac3c21d538533b0d406e3e SHA-1: f772894621cb1253a21d4b55bb866fcb8e83640f SHA-256: aaaccf7d7368237d90719305bdf8ad1b4b5e101efd09ec2753e1001a7f49acff
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to various domains, a technique often used for SEO poisoning or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically identifies this pattern, pointing to 'getsaltyllc.shop' as a dominant host. The embedded document body text, though heavily obfuscated, contains URLs that are also present in the list of extracted URLs, reinforcing the link farm attack pattern. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://moggawear.com/uploads/1/3/0/5/130588185/130588185.html#access+format+calculated+field+decimal
    • http://getsaltyllc.shop/uploads/1/3/0/8/130873875/5831337.pdf
    • http://operschlosshallwyl.ch/uploads/1/3/0/5/130540789/nutulixik-gemitogot-pefuduluwi.pdf
    • http://litfriends.com/uploads/1/3/0/4/130476859/finuzonu.pdf
    • http://petliabilityinsurance.com/uploads/1/3/1/4/131453676/756d1.pdf
    • http://hillypainting.com/uploads/1/3/0/4/130489175/zinajebevo_gowoxote.pdf
    • http://gypsywomangallery.com/uploads/1/3/0/7/130775145/9b9bb84a.pdf
    • http://asanayogawellness.com/uploads/1/3/0/6/130621193/kelixa-zomilijas-dipelegumedukur-velibelaza.pdf
    • http://emf-safety.com/uploads/1/3/0/8/130874130/dojanojabozofexeze.pdf
    • http://teami3.net/uploads/1/3/0/3/130379347/8f0c5c20d1adb7b.pdf
    • http://sunnylevi.com/uploads/1/3/0/6/130603867/9044566.pdf
    • http://lanechurch.info/uploads/1/3/0/3/130313489/9e12bac9b89.pdf
    • http://lapsedcatholic.xyz/uploads/1/3/0/5/130543065/ribamibi_xusujepomo.pdf
    • http://catherinecgt163.com/uploads/1/3/0/5/130539297/toketavojo.pdf
    • http://rockphilosopher.com/uploads/1/3/1/4/131407918/ddcf5df65.pdf
    • http://legionriskmanagement.com/uploads/1/3/1/3/131381112/c54cc7b6fa02.pdf
    • http://misticgaming.com/uploads/1/3/0/2/130289711/jituzobu.pdf
    • http://tambakula.org/uploads/1/3/0/7/130775371/wopikejuxawaw-nabisadevovijur-bufiwunegelixiv.pdf
    • http://andaman-international.com/uploads/1/3/0/8/130874472/saxuvupa.pdf
    • http://thenightsymphony.com/uploads/1/3/0/4/130476104/1575402.pdf
    • http://neil-bird.com/uploads/1/3/0/7/130775130/kuvapekikelir.pdf
    • http://cypresspointerehabhc.com/uploads/1/3/1/6/131637743/dilikowovazuzigilug.pdf
    • http://zoegirl.ca/uploads/1/3/0/6/130621066/jupevelinuzuto.pdf
    • http://phelpseng.com/uploads/1/3/0/8/130873876/4391907.pdf
    • http://imafakemom.com/uploads/1/3/0/4/130483341/7963975.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_off0000625d.bin
93a2228bacabe3979a28dc8b21f99330e25fc93d015d71d18328482cccad8e03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x625D 11404 bytes

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