Malicious PDF — malware analysis report

Static analysis result for SHA-256 e158e3aaebbdb04d…

MALICIOUS

PDF

48.0 KB Created: 2020-03-29 12:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3da9fbcd1644ac2029a0632ebc44a123 SHA-1: a9aa533c05970246a19fada008bce5e46f11d861 SHA-256: e158e3aaebbdb04df8aafd1b6fcbe9c7d4dd937707812d9fc35a2831b05d4d17
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which are numerically or generically named, suggesting a link farm or SEO spam operation. The document body, though partially corrupted, contains keywords related to recipes and application metadata, likely used to disguise the malicious intent. The primary goal appears to be directing users to a network of websites, potentially for advertising, phishing, or malware distribution.

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://blockchainambassador.ca/uploads/1/3/0/2/130289481/130289481.html#gluten+free+vegan+cake+recipe+uk
    • http://rfnflanges.com/uploads/1/3/0/8/130814085/pefajofak.pdf
    • http://earthquakesafety101.com/uploads/1/3/0/5/130543539/dd324bfb.pdf
    • http://stephanieboivin.com/uploads/1/3/0/6/130639093/rezewatonutora-mudevesowekin-femibibi-mofefagibuzi.pdf
    • http://ketooozy.com/uploads/1/3/0/2/130273735/xiwalagen-mevijamifez.pdf
    • http://kobiphysique.com/uploads/1/3/0/7/130739206/2050299.pdf
    • http://bystacywithlove.com/uploads/1/3/0/4/130483355/893cfd2270e25.pdf
    • http://sonoranshadows.com/uploads/1/3/0/7/130776589/vulubudibafif-nasufizewifom-nixeki-firapi.pdf
    • http://sundancertradingco.com/uploads/1/3/0/7/130739121/5459104.pdf
    • http://biohaircarethailand.com/uploads/1/3/0/4/130488704/8b3c9e5bf7f.pdf
    • http://cellularculture.com/uploads/1/3/0/4/130478551/vadokuvawofoj-vokuxigexo.pdf
    • http://cardonfamily.org/uploads/1/3/0/7/130775033/8f33c.pdf
    • http://compratucasaya.com/uploads/1/3/0/4/130435532/8864452.pdf
    • http://mathematics-inquiry.com/uploads/1/3/0/7/130776629/751786.pdf
    • http://whereiskathryn.com/uploads/1/3/0/4/130488547/4672243.pdf
    • http://gearheadtackle.com/uploads/1/3/0/6/130621781/5666417.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007476.bin
63b524ce6166c9da4d20ce0cf9cf35a186f0041d9b630c05866552db236c838a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7476 7944 bytes
font_01_sfnt_off0000936a.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x936A 2604 bytes
font_02_sfnt_off00009c9d.bin
0f23141ba94d37b49c53016ac63a9b008a6ac8e4c4656a8d80e6725f77750189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C9D 16140 bytes

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