Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ef68489d2bcff7a…

MALICIOUS

PDF

40.5 KB Created: 2020-04-29 10:39:02 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 845d29d4aa68f4025d65bad222fdce17 SHA-1: f2804226bd4d24789ac4c3423908302e07bac1a4 SHA-256: 4ef68489d2bcff7a66f268398f744aa4f9de2737c98f72409ccf4413f4b815ce
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body is heavily obfuscated, but the presence of URLs like 'http://bodyworkbybarb.com/uploads/1/3/0/2/130272360/130272360.html#ipl+2019+schedule+cricbuzz+pdf' suggests a lure related to popular events or information. The primary goal appears to be directing users to a network of linked sites, likely for SEO spam or to host further malicious content.

Heuristics 3

  • 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
  • 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://bodyworkbybarb.com/uploads/1/3/0/2/130272360/130272360.html#ipl+2019+schedule+cricbuzz+pdf
    • http://africanbraids.org/uploads/1/3/0/4/130489465/nomodegojatopom.pdf
    • http://capitalconsigliere.com/uploads/1/3/1/0/131070481/vitaxesade_giwoxif.pdf
    • http://theivoryletter.com/uploads/1/3/0/7/130740316/kepagatot.pdf
    • http://she-fi.net/uploads/1/3/0/3/130313183/wibibejuweriwe-guzajugem-menekezigusu-dodaxiso.pdf
    • http://changetravels.de/uploads/1/3/0/7/130776474/78724d01.pdf
    • http://avididonline.com/uploads/1/3/0/6/130620412/b86de3e91c499.pdf
    • http://vgagroupinvestments.com/uploads/1/3/1/3/131383251/3899114.pdf
    • http://myplacetorest.com/uploads/1/3/0/5/130589048/872995227c0.pdf
    • http://gradnx.com/uploads/1/3/0/7/130739549/ritexo.pdf
    • http://thewhitepartnership.com/uploads/1/3/0/4/130435745/zizuwepugipaninume.pdf
    • http://vanishedacres.com/uploads/1/3/1/1/131163890/wexopegexotiso_sotubud_rofap.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_off000073b9.bin
bd58af058ecbcb2fd9036f4b7668dc6f1e7322c1af64f8fb8f5ecc069957faa4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73B9 8488 bytes

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