Malicious PDF — malware analysis report

Static analysis result for SHA-256 d08937e5d09dc2eb…

MALICIOUS

PDF

41.9 KB Created: 2020-04-02 11:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6a4d19b0839c3265119f3244fe2c9091 SHA-1: 36ce90aafca9ef4c13143f5b2a9452fa4e2b777c SHA-256: d08937e5d09dc2eb092811f30e2a5d54fad1afdbbecf103b4c9de454e1f2cfdc
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious websites. The document body, though partially corrupted, suggests an attempt to lure users with educational content. The embedded links likely lead to further stages of the attack, such as downloading additional malware or phishing pages.

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://customrenderprojects.com/uploads/1/3/0/6/130604637/130604637.html#ejercicios+resueltos+de+espacios+vectoriales+pdf
    • http://stormcharging.com/uploads/1/3/0/6/130604979/596e553548fb.pdf
    • http://gwo-international.org/uploads/1/3/1/3/131380343/67eb2d84b9.pdf
    • http://managethedaytoday.com/uploads/1/3/0/7/130775912/biwad.pdf
    • http://davidrobertloblaw.com/uploads/1/3/0/2/130272266/gejodi.pdf
    • http://fastlanehandymanservices.com/uploads/1/3/0/6/130620320/6962654.pdf
    • http://arielhughey.com/uploads/1/3/0/6/130621829/404a5653d.pdf
    • http://doorofhopecommunity.org/uploads/1/3/0/5/130588849/5201505.pdf
    • http://accuratus-services.net/uploads/1/3/1/4/131406020/nifirejewovoti_xuromezujugid_soliramobububun.pdf
    • http://tnpcdc.org/uploads/1/3/0/7/130738870/tirupab-nupavumi-senenijebopenox-rimuzoberilax.pdf
    • http://mdrealestatesolutions.net/uploads/1/3/1/0/131070402/7252678.pdf
    • http://cometojamaicawedding.com/uploads/1/3/0/6/130604067/3584792.pdf
    • http://engineersci.com/uploads/1/3/0/6/130603860/bumemuzuzafelidurum.pdf
    • http://resetandrenewyoga.com/uploads/1/3/0/9/130969707/40dfe0cb473.pdf
    • http://distrinalstamarta.com/uploads/1/3/0/2/130292098/48249db39f9a989.pdf
    • http://potnuts.me/uploads/1/3/0/8/130874146/ccfc89f3dd35d9b.pdf
    • http://implementables.com/uploads/1/3/1/1/131164372/6295304.pdf
    • http://downtownperiodontalcenter.com/uploads/1/3/0/5/130590140/c9b7ec450ee.pdf
    • http://familysupertrust.com/uploads/1/3/0/5/130590158/f0c72727d574b.pdf
    • http://ivanastravel.com/uploads/1/3/0/4/130488295/7739105.pdf
    • http://ohiohometuneup.com/uploads/1/3/0/3/130379475/3162888.pdf
    • http://beingmadewholeblog.com/uploads/1/3/0/7/130740441/jamug_fixusuzojofaxen_fenuzavaxajerud_litowopiminomit.pdf
    • http://mthopeucc.org/uploads/1/3/0/4/130476607/davov.pdf
    • http://lettersoflight.org/uploads/1/3/1/3/131379262/9454434.pdf
    • http://lettersoflight.org/uploads/1/3/1/3/131379262/9454
    • 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_off00006467.bin
097e736da2c1523879d555eda61190e36f704c43741902aca576d237ddb08311		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6467 8188 bytes
font_01_sfnt_off000082a1.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A1 16036 bytes

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