Malicious PDF — malware analysis report

Static analysis result for SHA-256 8800a5ce8b102ffc…

MALICIOUS

PDF

42.5 KB Created: 2020-03-20 14:07:09 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5d00ca42c777283efece20f61f49e107 SHA-1: a3d7bb63dbfc46852b1de0fd1e8392bc80b2ce48 SHA-256: 8800a5ce8b102ffc91d729ce7d6f34ba9eabf171c3ee62abf15db9b619b2beaf
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of external links, indicating a potential SEO link farm or a distribution point for further malicious content. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may contain instructions for executing commands, possibly leveraging LOLBins to download and execute additional payloads. No scripts were extracted from this sample, limiting the ability to determine the exact execution mechanism.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://airshipenterprises.com/uploads/1/3/0/8/130813592/130813592.html#funcion+residuo+en+matlab
    • http://www.heatherraenorthway.com/uploads/1/3/0/6/130604369/suvufopepuxage.pdf
    • http://madameallen.org/uploads/1/3/0/2/130288567/7124046.pdf
    • http://birminghamobediencetrainingclub.com/uploads/1/3/0/7/130739046/106b0bd0fe6f.pdf
    • http://www.indiginousscene.com/uploads/1/3/0/6/130639068/sujagatiretubikalax.pdf
    • http://castlehilltop.com/uploads/1/3/0/7/130739535/nexavalijezemiwez.pdf
    • http://2apples2oranges.net/uploads/1/3/0/6/130604720/9180368.pdf
    • http://www.judaicabyjimcohen.com/uploads/1/3/0/8/130813117/dabidewisozedepixosu.pdf
    • http://sdpremiumholdings.com/uploads/1/3/0/6/130620931/2a8b14ae40.pdf
    • http://hostmaster.negotiation-alchemy.com/uploads/1/3/0/8/130815031/gerugonebasij.pdf
    • http://nzuria.com/uploads/1/3/0/5/130550657/58c6be.pdf
    • http://tradeshowsinphoenix.com/uploads/1/3/0/8/130814630/zizatolawejosedoj.pdf
    • http://www.blackdogcottagepublishing.com/uploads/1/3/0/7/130739688/9292799.pdf
    • http://wellmedexpress.com/uploads/1/3/0/4/130483542/bilatekoxupimek-ririgegu.pdf
    • http://psychologynikkigrant.com/uploads/1/3/0/2/130289224/lasigifogaf.pdf
    • http://lesliehaddow.com/uploads/1/3/0/7/130739564/jojadis.pdf
    • http://vehicleloanusa.com/uploads/1/3/0/4/130483047/jekekemiwitimi-wubax.pdf
    • http://dactilar.es/uploads/1/3/0/8/130813934/3221003.pdf
    • http://www.nhwcmd.com/uploads/1/3/0/2/130273814/5002117.pdf
    • http://aninhastore.com/uploads/1/3/0/6/130604366/7f99254.pdf
    • http://areshfraser.com/uploads/1/3/0/6/130621547/remujiwigijapa.pdf
    • http://www.ridetarga.co.uk/uploads/1/3/0/5/130588415/vonofugemab_famerukibune_viratenuz.pdf
    • http://tiagomasluka.com/uploads/1/3/0/6/130639662/7733334.pdf
    • http://vpn.ccg-i.com/uploads/1/3/0/5/130588187/wujamofu.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_off00007c6d.bin
b24fe94e7b02513a28104bd09e17b1aa7c65de46155acc3263a5f227173624be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 8316 bytes

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