Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2f0794c7caf57c…

MALICIOUS

PDF

35.9 KB Created: 2020-05-25 04:07:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42c7f41c6c2cab4d79884f37b1f4d918 SHA-1: 876f95287b88b881f31c8f482c6c7210e772b0bb SHA-256: 6f2f0794c7caf57cbdd6f56c0ffc7efe338caa7f710eeaec1a6170f801152b46
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier and contains a large number of external links, indicative of a link farm or SEO poisoning tactic. The embedded links, such as http://jvcconsulting.net/uploads/1/3/0/7/130775674/130775674.html#filmic+pro+mod+apk+6.+7.+7, likely serve to direct users to potentially harmful websites or download further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jvcconsulting.net/uploads/1/3/0/7/130775674/130775674.html#filmic+pro+mod+apk+6.+7.+7
    • http://aerospeciallties.com/uploads/1/3/1/3/131379312/32ae010d2ba6651.pdf
    • http://skyletcampus.com/uploads/1/3/0/6/130621938/busasipul-zotokuginod.pdf
    • http://thegreatawakening.vip/uploads/1/3/0/2/130271205/3287d580a4e86.pdf
    • http://earlymusicexpress.com/uploads/1/3/0/6/130621114/nekuwunifa-memegibadegexir-momokabujena-ganurajatufo.pdf
    • http://arkasolutions.info/uploads/1/3/0/4/130483050/5aa8caf.pdf
    • http://billiardbros.com/uploads/1/3/0/5/130543366/2453120.pdf
    • http://yogibeeryoga.com/uploads/1/3/0/6/130622041/disudosixegex.pdf
    • http://devicescavenger.com/uploads/1/3/0/4/130488101/pavazale.pdf
    • http://chrisferland.com/uploads/1/3/0/8/130874523/tikinuxajo_ferenajunu_nosoxubekufav.pdf
    • http://redlinelending.net/uploads/1/3/1/3/131381539/bupetigebizugego.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f00.bin
aa59d1fbf25953f9f96f72ebeed3b49ee4fbb813b5cefba95b57af3d651a56f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F00 11020 bytes

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