Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eeedfdb187c92cd…

MALICIOUS

PDF

51.0 KB Created: 2020-03-20 14:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 8c3522af7763e8ab9a772abe706a7bc7 SHA-1: e578b2539477daf7cfc7d4dee414b58b6e9c156f SHA-256: 3eeedfdb187c92cd04b5aebe0ee5f75976b5a6bb468c4dcbcae518209d7f5a08
136 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, indicating a link farm or redirection strategy. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, suggesting the document's primary purpose is to drive traffic to a network of related domains. The embedded URLs are likely used to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://peanutgalleryphotography14.com/uploads/1/3/0/2/130270831/130270831.html#teor%C3%ADa+queer+y+psicoan%C3%A1lisis PDF link annotation
    • http://conversioncinema.com/uploads/1/3/0/7/130740297/dfc071de.pdfIn PDF document text
    • http://smithvillecommunityinaction.info/uploads/1/3/0/3/130323466/kadolofaketel_majizuzuxatiw.pdfIn PDF document text
    • http://helenogradydramaacademynorthlondon.com/uploads/1/3/0/7/130776386/6243545.pdfIn PDF document text
    • http://powermixpro.com/uploads/1/3/0/6/130621123/cc4469d690.pdfIn PDF document text
    • http://summervillepsych.com/uploads/1/3/0/6/130605267/9375a339389883.pdfIn PDF document text
    • http://newhorizonsllchardwoodscustomprofiles.com/uploads/1/3/0/6/130640040/dalifanewukif-zozokizib-lemupoxogobado.pdfIn PDF document text
    • http://www.headlinesinrockinghinc.com/uploads/1/3/0/4/130489410/nesejudupodo.pdfIn PDF document text
    • http://talesfromsixthgrade.com/uploads/1/3/0/6/130603980/weposegadiromatopege.pdfIn PDF document text
    • http://greengolfcertification.net/uploads/1/3/0/5/130589293/37b9d9.pdfIn PDF document text
    • http://tappycard.io/uploads/1/3/0/5/130551210/walezi.pdfIn PDF document text
    • http://crossroadsconsultingllc.com/uploads/1/3/0/9/130969678/jokagemu.pdfIn PDF document text
    • http://claycrossmethodistcommunitygarden.com/uploads/1/3/0/5/130540186/030b9276f6.pdfIn PDF document text
    • http://www.makeupbyjhoann.com/uploads/1/3/0/7/130775150/7576176.pdfIn PDF document text
    • http://fitluv.net/uploads/1/3/0/9/130969850/970d3.pdfIn PDF document text
    • http://gritnursingreview.ca/uploads/1/3/0/6/130620382/9413084.pdfIn PDF document text
    • http://aurobole.com/uploads/1/3/0/2/130271045/5c383252.pdfIn 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
🗂 Part of campaign: conversioncinema.com 7 samples

Related samples 4

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_off0000991d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x991D 10360 bytes
SHA-256: f568b1d519901a3f5cfb01e810891670b270eb3f122c9ff1a9ce855f7873968c

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