Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfb371fdedc17096…

MALICIOUS

PDF

37.2 KB Created: 2020-04-25 12:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 00fc974c312acac9c3b68233d167ea08 SHA-1: f39f8857d65616a884669d8404383ec5c8758fd0 SHA-256: dfb371fdedc17096dcf4c553288c5da0f14ae5a053b6c7f9a1b3d446a0c2a2b8
70 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which are structured as a link farm designed to appear as software downloads. The heuristic 'PDF_SEO_LINK_FARM' indicates a high volume of such links, suggesting a malicious intent to distribute further payloads or lead users to phishing sites. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://everestdobie.com/uploads/1/3/0/7/130776676/130776676.html#calibre+software+free++for+windows+8
    • http://guildaware.net/uploads/1/3/0/6/130639026/3c67b3e.pdf
    • http://faktorserwis.pl/uploads/1/3/1/4/131406202/5ae195.pdf
    • http://hkshopholic.com/uploads/1/3/0/7/130775627/3481530.pdf
    • http://mx.sportsapparel4u.com/uploads/1/3/0/5/130546645/1865384.pdf
    • http://engforu.com/uploads/1/3/0/7/130739646/5770470.pdf
    • http://stlorganics.com/uploads/1/3/0/4/130477039/jijutupusibikofawop.pdf
    • http://reisebasar.ch/uploads/1/3/1/3/131380052/8557590.pdf
    • http://remcofitness.com/uploads/1/3/1/3/131384679/5b53a.pdf
    • http://chargemasterlibrary.com/uploads/1/3/0/7/130776883/774951.pdf
    • http://chargemasterlibrary.com/uploads/1/3/0/7/130776883/7749
    • 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_off0000699b.bin
d62da232424f51974303afc3c7abdc3b39456974738a106696c7f6ef5eb727e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x699B 8148 bytes

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