Malicious PDF — malware analysis report

Static analysis result for SHA-256 d79c6c73b72723fe…

MALICIOUS

PDF

36.6 KB Created: 2020-04-01 21:54:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: e5c5d759e73d60f63996d131eb08cf9b SHA-1: d26f7d32725c4a8a424f6e83b1f90cfb6c2def4c SHA-256: d79c6c73b72723fee9f77393986e4a6736ee2e875009cae6bb509b6384960aff
96 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which point to other PDF files hosted on similar domains, suggesting a link farm for SEO manipulation or malware distribution. The document body, though corrupted, contains a URL that mimics a movie download link, indicating a social engineering lure. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent to redirect users to potentially harmful content.

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://brightmindstraining.info/uploads/1/3/0/6/130621167/130621167.html#lie+with+me+movie+download+in+hindi+300mb PDF link annotation
    • http://newyorkhomeclick.com/uploads/1/3/1/0/131070190/fozewofofiw.pdfIn PDF document text
    • http://thesilversteamtrunk.com/uploads/1/3/0/4/130483341/texefawimumewi.pdfIn PDF document text
    • http://dmm-labs.com/uploads/1/3/0/6/130620314/jazowa.pdfIn PDF document text
    • http://markkraemer.net/uploads/1/3/0/6/130604869/risapiga.pdfIn PDF document text
    • http://www.contemporary-flair.com/uploads/1/3/0/7/130775692/120894.pdfIn PDF document text
    • http://yourassistantlaura.net/uploads/1/3/0/5/130543494/wixudeduves_vinovorufa_tofofefumig.pdfIn PDF document text
    • http://camilo-leon.com/uploads/1/3/0/6/130621634/noguxe_todepe_jipizubezud.pdfIn PDF document text
    • http://chefmetz.com/uploads/1/3/0/4/130489367/devuvodimigulorulosi.pdfIn PDF document text
    • http://acquiringfitnessllc.com/uploads/1/3/0/5/130541465/c52dc.pdfIn PDF document text
    • http://badacequipment.com/uploads/1/3/0/5/130590117/jolezi.pdfIn PDF document text
    • http://invibemusictherapy.com/uploads/1/3/0/6/130620835/5955306.pdfIn PDF document text
    • http://ahigherlove.net/uploads/1/3/0/5/130551788/428edee5.pdfIn PDF document text
    • http://keannasade.com/uploads/1/3/0/6/130604215/90c83df8.pdfIn PDF document text
    • http://mrworkman.ca/uploads/1/3/1/3/131398091/guguxop_paxuv_mufejafibakuno.pdfIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn 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 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_off000054ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54EF 7596 bytes
SHA-256: 078dc3f8c25e32beccca918e7badcb220037fb03befca142267f20ac50580445
font_01_sfnt_off000072a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A2 1584 bytes
SHA-256: 09980af06aa32beede8e777aa10233923e4f4a7e5cc0f889807f36331cd09c44
font_02_sfnt_off00007afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFC 2056 bytes
SHA-256: e56f5db8faf554166087922806b3819c377976d94af14c6b8a512386de68c265

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