Malicious PDF — malware analysis report

Static analysis result for SHA-256 7010c1a1ca97882d…

MALICIOUS

PDF

40.4 KB Created: 2020-05-23 07:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b07301b827c96e4a3591d91195094fc SHA-1: 4feaa02c5490ae5bd72a3d61c8ccbc30cdd5e99b SHA-256: 7010c1a1ca97882d746dfcde08e8b52eda49d407fd9c87797ccad30254482f16
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body also contains URLs, suggesting a link farm or SEO spamming attack. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points towards a potential phishing or malware distribution vector.

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://shopseducedestroy.com/uploads/1/3/1/3/131383541/131383541.html#power+i+offense+playbook
    • http://lashlab-luxury.com/uploads/1/3/1/4/131453998/tavumokepinoned_gavugaz_ziguzasifif.pdf
    • http://dchighlandsweets.com/uploads/1/3/0/7/130775826/7226262.pdf
    • http://baypointvillas.com/uploads/1/3/1/0/131070230/d035d9940.pdf
    • http://morninglightcounselingllc.com/uploads/1/3/0/9/130969840/4109166.pdf
    • http://education-cannabis.com/uploads/1/3/0/5/130590710/1117062.pdf
    • http://blueskycenteronline.com/uploads/1/3/0/2/130289760/tavogosalutikuf-vunamalepitu-vimenabaruneso.pdf
    • http://fcaffiliates.com/uploads/1/3/1/4/131438044/papevoje.pdf
    • http://riverbendstorage.net/uploads/1/3/0/3/130324324/f32585e4e.pdf
    • http://internationalrelationsoxford.com/uploads/1/3/1/3/131381680/a21ebda3.pdf
    • http://dividendhousing.org/uploads/1/3/0/5/130551922/xovuwuka-remibonoko.pdf
    • http://texas-glam-girlz.com/uploads/1/3/2/3/132302787/nomab.pdf
    • http://go-digital.be/uploads/1/3/0/5/130589104/gesev.pdf
    • http://accelerationgateway.com/uploads/1/3/1/4/131407630/809109.pdf
    • http://velvetbuddhaarts.com/uploads/1/3/1/4/131453650/xapujemuvakavifela.pdf
    • http://bluegumchurch.com/uploads/1/3/0/4/130483830/tofutuxudidizujem.pdf
    • http://prestigeadditives.com/uploads/1/3/0/7/130776176/tipalepenik.pdf
    • http://avasfurniture.com/uploads/1/3/1/3/131398459/44.pdf
    • http://mta-sts.mail.qreativestudios.com/uploads/1/3/0/7/130774970/ketufis-luzafirarurubod-sadabuwadutiv.pdf
    • http://gcheavenlycleaning.services/uploads/1/3/1/6/131636946/gikuve_ridij_poliz.pdf
    • http://darnerprojects.com/uploads/1/3/1/1/131164448/cd1099dbc.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_off00007284.bin
30c32bb5d2025b7d1b2146ee8e66cf8d91cbb26d3fb8390433f9be42648d582e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7284 10436 bytes

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