Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b464d4026c85a48…

MALICIOUS

PDF

60.7 KB Created: 2020-03-29 07:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6045a4c33462a954dc38860e0a040929 SHA-1: e268b6d8afa506933eb130eab5e40b4f62df4d47 SHA-256: 2b464d4026c85a482e7c1b0a7daeca549719b65ab8b38b6feb58f270cec08585
62 Risk Score

Malware Insights

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

The PDF document contains a deceptive message related to resetting a device, designed to trick users into clicking on numerous external links. These links lead to a large farm of SEO-optimized PDF files hosted across various domains, indicating a link-farming or redirection scheme. No scripts were extracted, and the document body is heavily obfuscated, but the presence of a PDF URI and a critical PDF_SEO_LINK_FARM heuristic firing strongly suggests a malicious intent to drive traffic or potentially deliver further payloads through these linked documents.

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://webdisk.collegedemsatiu.com/uploads/1/3/0/4/130475939/130475939.html#reset+panelview+plus+factory+default
    • http://campinabox.camp/uploads/1/3/0/2/130289693/sekapapodut-wonufaval-bituf-leluzakogonif.pdf
    • http://kitchencounsel.net/uploads/1/3/0/5/130539553/pefopan-vetogik.pdf
    • http://thatgirlmathy.com/uploads/1/3/0/6/130622066/881db43.pdf
    • http://mta-sts.mail.lochabermcc.com/uploads/1/3/0/8/130814192/da3aa2a6e640f2.pdf
    • http://coopersrockforestretreat.com/uploads/1/3/0/6/130639273/6754645.pdf
    • http://bergencountyfieldhockey.com/uploads/1/3/0/2/130289686/4345833.pdf
    • http://puffymediagroup.com/uploads/1/3/0/7/130739431/tepodedelupowad-nejub-fifabegewejawel-gexepofuxerol.pdf
    • http://matthewsdentalut.net/uploads/1/3/0/3/130313120/3531278.pdf
    • http://web8.pleasingfood.com/uploads/1/3/0/9/130969245/tobid-tenexetasojelor-munukategelasa-vofuvivom.pdf
    • http://rhsvideo.com/uploads/1/3/0/5/130588790/sajaxupugevapu-ruvixap.pdf
    • http://www.karenkelleyperkins.com/uploads/1/3/0/5/130540178/381937.pdf
    • http://www.forestcove.net/uploads/1/3/0/6/130621405/b68c0f14c36f.pdf
    • http://www.setanta-sporthorses.com/uploads/1/3/0/2/130289340/xinesemofopano.pdf
    • http://thegeorgiaquailhunt.com/uploads/1/3/0/4/130489567/makuviwiwedexet.pdf
    • http://frankenmom.com/uploads/1/3/0/9/130969712/dodaxizusuv.pdf
    • http://morganporterphotography.com/uploads/1/3/0/5/130590059/3e33335528b675.pdf
    • http://firemaker.org/uploads/1/3/0/2/130289344/7083421.pdf
    • http://michaudtyler.com/uploads/1/3/0/4/130476760/387734.pdf
    • http://cvillecohousing.com/uploads/1/3/1/0/131070646/3922845.pdf
    • http://accountingli.com/uploads/1/3/0/6/130621243/1434729.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_off0000c1d0.bin
3798090ce62eec6d5e32ba1e68358f33b2607a5184d0e638949477d5e3e776b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1D0 8744 bytes

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