Malicious PDF — malware analysis report

Static analysis result for SHA-256 e88c3d74b868545a…

MALICIOUS

PDF

39.4 KB Created: 2020-05-15 09:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 5679e5bf2492a9cd30363c542890b8bb SHA-1: cfa9545f16c2259689469c3b489368f8237afd9f SHA-256: e88c3d74b868545a55fa154e3206308b66d2827b41ec60919a298c0cbe8a9a32
116 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm, suggesting a malicious intent to redirect users to potentially harmful content or manipulate search engine rankings. The presence of a QR code lure further supports a phishing or redirection-based attack vector. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://vets1stmobility.net/uploads/1/3/0/5/130540493/130540493.html#nest+thermostat+installation+guide+video PDF link annotation
    • http://sauliusskiudulasmalingtjene.com/uploads/1/3/0/9/130969279/3f331d646cd75a9.pdfIn PDF document text
    • http://menorah.church/uploads/1/3/1/8/131859527/moreku_gijani.pdfIn PDF document text
    • http://simplysuze.com/uploads/1/3/1/4/131483307/ginofo.pdfIn PDF document text
    • http://rightviewwindowcleaning.com/uploads/1/3/1/4/131407324/1667840.pdfIn PDF document text
    • http://photographybyherb.com/uploads/1/3/0/6/130640139/321d3d0d7269b.pdfIn PDF document text
    • http://scprobatelawfirm.com/uploads/1/3/0/6/130620998/6530241.pdfIn PDF document text
    • http://siennahoney.com/uploads/1/3/0/3/130313026/309222.pdfIn PDF document text
    • http://alliedfoodforum.org/uploads/1/3/0/6/130639782/xumatozeje.pdfIn PDF document text
    • http://perfectwashbloomfieldnj.net/uploads/1/3/0/4/130435905/2767919.pdfIn PDF document text
    • http://puntadasimperfectas.com/uploads/1/3/0/4/130483050/1580144.pdfIn PDF document text
    • http://hitair-equestrian.ca/uploads/1/3/1/8/131871426/7f7742a92cf7960.pdfIn PDF document text
    • http://poweryogafestival.com/uploads/1/3/0/8/130874001/xesavug_lejiwugopenaro.pdfIn PDF document text
    • http://ajhollowayministries.com/uploads/1/3/1/4/131438604/fekifujomelabe-gorinat-gelatamalu-rolel.pdfIn PDF document text
    • http://worldinchains.com/uploads/1/3/0/7/130776589/2e2a0fb2fd85aa.pdfIn PDF document text
    • http://messybeards.com/uploads/1/3/0/7/130739656/5813330.pdfIn PDF document text
    • http://americanheritageopportunities.com/uploads/1/3/1/4/131453065/kupipekoxejalitabibi.pdfIn PDF document text
    • http://boshuster.com/uploads/1/3/1/0/131070161/9408406.pdfIn PDF document text
    • http://spartanspizza.com/uploads/1/3/1/0/131069968/vafunubevif_pawezimofese.pdfIn PDF document text
    • http://longfordgardencentre.net/uploads/1/3/1/4/131453610/11713cf81e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F69 10140 bytes
SHA-256: 595a4afc306af40ff253175dc01c83afad31f74740e5834b454565df8fe526a8

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