Malicious PDF — malware analysis report

Static analysis result for SHA-256 83e0e1632a3afb5b…

MALICIOUS

PDF

58.9 KB Created: 2020-04-21 16:47:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7004458128be049a6715f3950c963c73 SHA-1: 34b3710a34d3fd92ce3370c16a86e33b8983fd6b SHA-256: 83e0e1632a3afb5ba01e8b25ad77982d732eff76fe75014cd23323377d7ad4a6
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. This pattern is indicative of a link farm or a method to distribute malicious content across multiple sites. The embedded URLs suggest a lure to download or view further content, potentially leading to malware or phishing attempts. No scripts were extracted, limiting the analysis of direct execution capabilities.

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://jvcleaning.net/uploads/1/3/0/7/130776714/130776714.html#free+templates+bootstrap+4+admin
    • http://elevatedfrequency.com/uploads/1/3/0/5/130588757/rexopopaxawevebemuv.pdf
    • http://thegoodlifebiblestudies.com/uploads/1/3/0/7/130775732/revese_satuw.pdf
    • http://thechilderslawfirm.com/uploads/1/3/0/8/130813489/wonab_jodal.pdf
    • http://wileybsa2020.com/uploads/1/3/0/6/130621472/babivo_buzisug.pdf
    • http://notary4-u.com/uploads/1/3/0/2/130271116/lonajeped.pdf
    • http://homestead-wx.com/uploads/1/3/0/4/130483295/53f063.pdf
    • http://myclubsol.com/uploads/1/3/0/2/130289161/tagukotek.pdf
    • http://thehiphopsutra.com/uploads/1/3/0/8/130814534/660393.pdf
    • http://funtastictimes.com/uploads/1/3/0/4/130488196/9cebfb.pdf
    • http://hyssop.info/uploads/1/3/0/6/130621502/6a09e9485180798.pdf
    • http://informdiets.com/uploads/1/3/0/4/130488743/xinazamijap-gudiriru-fomokunuxe.pdf
    • http://mslichfield.com/uploads/1/3/0/6/130640218/rosezepojupofenokake.pdf
    • http://oscilloscape.org/uploads/1/3/0/4/130436306/84128b1095646bb.pdf
    • http://blowingrocksushi.com/uploads/1/3/1/4/131438308/xesigugagesus-dumet-mizod-mumatab.pdf
    • http://suisekirocks.com/uploads/1/3/0/8/130873942/3fb94aca9533.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a967.bin
9de339400ddc4a0296090499b739bd73ef6b321f1380d89be36a2fba9bc7a3db		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA967 8536 bytes
font_01_sfnt_off0000ca3e.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA3E 16036 bytes

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