Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c6104913104d063…

MALICIOUS

PDF

44.1 KB Created: 2020-03-26 08:10:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 845c1636d152765536653fa91dc1a74a SHA-1: 25c9528d1a16f8eeeef388d27274590b2ba01587 SHA-256: 8c6104913104d063a38f0a277e1344845acffef5f3ea8faef27867d6739e0e8e
96 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, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO poisoning attack. The document body mentions 'Cub cadet lt1046 air filter' and includes a URL pointing to a related HTML file, indicating a lure to disguise the malicious intent. The primary goal appears to be directing users to a network of external sites, likely for malicious redirection or content distribution.

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://delgeinc.com/uploads/1/3/0/2/130272266/130272266.html#cub+cadet+lt1046+air+filter PDF link annotation
    • http://organictherapeuticbodywork.com/uploads/1/3/0/6/130639263/bipumawu-jufuxa.pdfIn PDF document text
    • http://bfmix.com/uploads/1/3/0/5/130543198/moxiravanajub-gisasanojijemu.pdfIn PDF document text
    • http://audreynewmont.net/uploads/1/3/0/2/130288962/cb7158020eee.pdfIn PDF document text
    • http://sleepyknightsblog.co.uk/uploads/1/3/0/7/130738631/jipexas_fakisebiwave_gugulenivifitif.pdfIn PDF document text
    • http://numberoneagira.com/uploads/1/3/0/5/130540567/1893560.pdfIn PDF document text
    • http://scw6.whedonstudies.tv/uploads/1/3/0/8/130814179/3896653.pdfIn PDF document text
    • http://www.mechanicalpreconstruction.com/uploads/1/3/0/5/130588971/34af52e4fe06ac8.pdfIn PDF document text
    • http://aimvend.com/uploads/1/3/0/7/130775870/fujenezu.pdfIn PDF document text
    • http://cherubgame.com/uploads/1/3/0/5/130588842/zamasenokelafop-fixote-giwapezepe.pdfIn PDF document text
    • http://newburyparkacupuncture.com/uploads/1/3/0/2/130291623/858946.pdfIn PDF document text
    • http://beautesache.ru/uploads/1/3/0/2/130272260/rubulizudiwu.pdfIn PDF document text
    • http://www.medspalove.com/uploads/1/3/0/7/130776253/bafixogimo_nosezomilatasez_pufido.pdfIn PDF document text
    • http://salonweststudios.com/uploads/1/3/0/6/130621686/d98b67f0dffb3.pdfIn PDF document text
    • http://georgeisaacharris.co.uk/uploads/1/3/0/6/130604091/d4d022e1f.pdfIn PDF document text
    • http://poodlepalooza.com/uploads/1/3/0/6/130603865/jepaxutonij_wapidipifi_xagixakixizeva.pdfIn PDF document text
    • http://sgtreasure.com/uploads/1/3/0/6/130604256/9a8d5d02e002.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

Related samples 1

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_off0000822f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x822F 8780 bytes
SHA-256: 4ceb4e464f025d8a9fd68d82a7e42c709f9e0db4250fbdd3fbfb7d683e1a6842

Open this report in the interactive analyzer, or submit your own file for analysis.