Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f8576051a63092…

MALICIOUS

PDF

46.7 KB Created: 2020-03-15 05:32:59 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: f7006ff44b593a9f4133abd8c23d9b24 SHA-1: 1203b787583f4517d0ce240b7704046989b980e2 SHA-256: 55f8576051a63092ba9068635e236a644394ebf46384de81eefec03d987904f5
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized and point to other PDF files. The primary lure appears to be a link to 'manchester weather report 10 july 2019' which redirects to a malicious domain. This technique is commonly used to distribute malware or phish for credentials by directing users to compromised or malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://rapidpermitreviewhawaii.com/uploads/1/3/0/6/130639766/130639766.html#manchester+weather+report+10+july+2019 PDF link annotation
    • http://portatools.com/uploads/1/3/0/3/130323213/39c010af3a.pdfIn PDF document text
    • http://thehumancult.com/uploads/1/3/0/2/130289301/ralofaxitomawop.pdfIn PDF document text
    • http://photofetch.co/uploads/1/3/0/5/130588856/sadiriwivasoputalow.pdfIn PDF document text
    • http://livas.com.au/uploads/1/3/0/8/130814248/6f6a2876c30d.pdfIn PDF document text
    • http://mail.captaincookfarm.com/uploads/1/3/0/2/130288579/6842967.pdfIn PDF document text
    • http://industrialpalma.com/uploads/1/3/0/3/130313053/2999881.pdfIn PDF document text
    • http://keircarpentry.com/uploads/1/3/0/3/130312923/5413922.pdfIn PDF document text
    • http://dailyfootprints.com/uploads/1/3/1/1/131164499/mojofipuwovapo-jelirikejelap-likopinonixi-rufebig.pdfIn PDF document text
    • http://jllcapitalmarkets701e22nd.com/uploads/1/3/0/2/130272415/duwugusezi.pdfIn PDF document text
    • http://stephengilardi.com/uploads/1/3/0/6/130620574/wexizadodozabun.pdfIn PDF document text
    • http://www.bloom-yourownway.com/uploads/1/3/0/6/130639928/dimufaw_jiletudadilatu.pdfIn PDF document text
    • http://primoorders.com/uploads/1/3/0/8/130874001/vesomufejiw_komexirakawemu_zidesojog.pdfIn PDF document text
    • http://dashccinc.com/uploads/1/3/0/7/130739460/kunanaxujezita_buliru.pdfIn PDF document text
    • http://madisonavenueschoolofart.com/uploads/1/3/0/6/130604730/dodefinim.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
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C05 8800 bytes
SHA-256: cfb60969eeefdd6b1b772ea7a30054beb6a99b9871514b4819ad38579aeb0f4e
font_01_sfnt_off00008ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CED 2652 bytes
SHA-256: e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
font_02_sfnt_off00009654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9654 16060 bytes
SHA-256: 6ddf53b883350c964210757953e72edacca849803b95280767352c6c691d264d

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