Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f2eabbc392d02ab…

MALICIOUS

PDF

39.4 KB Created: 2020-06-15 02:15:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 27aaf66597eda050b16132f430215935 SHA-1: 3ccd3674dfe00e6d6f3d7b3a1dd1a0ce449cc0f2 SHA-256: 8f2eabbc392d02abd65ad3afc14a1d24fa727e877eada43fa1e233c6fe89d4c2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF documents hosted on different domains. The ML classifier also strongly indicated maliciousness. The embedded document body text includes a URL that appears to be a datasheet, potentially used as a lure. The primary attack pattern involves directing users to a link farm, which could be used for SEO poisoning or to distribute further malware.

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://barbellsandbuns.com/uploads/1/3/0/5/130539691/130539691.html#telit+gl865+quad+datasheet
    • http://melaniedietrich.com/uploads/1/3/0/5/130551091/6276358.pdf
    • http://mail.kristaleeharrison.com/uploads/1/3/1/4/131406736/loxopuxizosami-rawexijupivis-xojix.pdf
    • http://vectorservicesmn.com/uploads/1/3/1/4/131406846/5c62a8d9c8f780.pdf
    • http://hostmaster.galwayartacademy.com/uploads/1/3/0/7/130775137/9be198e2.pdf
    • http://cpanel.qhcc.org/uploads/1/3/1/0/131070469/mozitusobugane.pdf
    • http://ttime-restaurant.com/uploads/1/3/0/3/130379769/2241777.pdf
    • http://redmustangmach1.com/uploads/1/3/1/4/131482850/8026816.pdf
    • http://techradschool.com/uploads/1/3/1/6/131607163/ropuwo.pdf
    • http://mendocinocottagebythesea.com/uploads/1/3/0/2/130274024/fuwinutazuguje.pdf
    • http://katskornerinternational.org/uploads/1/3/1/4/131438202/razonegupel_boriz.pdf
    • http://mta185.qualitynow.net/uploads/1/3/0/5/130543240/3881653.pdf
    • http://craftyourvoice.com/uploads/1/3/1/3/131384484/3300333.pdf
    • https://bidakujuvob.files.wordpress.com/2020/06/xudopedipijuvemegamosimud.pdf
    • https://wamobujopo.files.wordpress.com/2020/06/63813508226.pdf
    • https://nibijolor.files.wordpress.com/2020/06/tulotalikeve.pdf
    • https://fugebetowipo.files.wordpress.com/2020/06/91548241228.pdf
    • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aac.bin
abbab4011b106b87317a49818afe1a55207829ae31f48e051820d10ec0b8dc85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAC 11520 bytes

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