Malicious PDF — malware analysis report

Static analysis result for SHA-256 bac48cc4d3bf74fe…

MALICIOUS

PDF

41.0 KB Created: 2020-04-09 05:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 51583d31470dc756b1e6488cb7857a2a SHA-1: 33261ec349b90a0133fad6493ccaa81ae75508c4 SHA-256: bac48cc4d3bf74fe4a7422766b38c3d21645420ecb82af07a475e3284cc1b21b
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links hosted on various domains. The embedded document body text also contains URLs, reinforcing the attack pattern. No scripts were extracted from this sample.

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://allamericanhandyman.org/uploads/1/3/0/6/130603785/130603785.html#from+matplotlib.pyplot+import+figure
    • http://ikhouvanlampegat.nl/uploads/1/3/0/6/130604759/winafezipufa_donironivive.pdf
    • http://artcarsrental.com/uploads/1/3/0/7/130739167/7ed775.pdf
    • http://serafimofficepaper.com/uploads/1/3/0/3/130323196/sapuv-fidano-fabav.pdf
    • http://sheaandaloe.com/uploads/1/3/0/5/130588720/2783946.pdf
    • http://lashmee.net/uploads/1/3/0/4/130435654/kivixatogub.pdf
    • http://ronstpierre.com/uploads/1/3/0/5/130588443/wajowuse.pdf
    • http://accsane.com/uploads/1/3/0/5/130546432/dad14dcde9278.pdf
    • http://superiormedstaffing.com/uploads/1/3/0/5/130539072/tumaruje_kolezuribixe_tidovipeza_viwepiwavisuve.pdf
    • http://schulemengestorf.ch/uploads/1/3/0/6/130639105/jorur.pdf
    • http://stephenburtcounselling.com/uploads/1/3/0/5/130590168/kidovomagimagirus.pdf
    • http://curbapparel.com/uploads/1/3/0/6/130639019/velezubef.pdf
    • http://diamondclouds.com/uploads/1/3/0/2/130289265/wilixumuruzezunojab.pdf
    • http://surom.com/uploads/1/3/0/6/130640020/5627524.pdf
    • http://sanluisvalleydistillery.com/uploads/1/3/0/2/130288643/soxeba_fakusun_rilon_rebim.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_off00007792.bin
f51c91b4728a652d2abba410515be719f5a5d08a824d17a2d3bd9a9375d2edb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7792 7548 bytes

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