Malicious PDF — malware analysis report

Static analysis result for SHA-256 3651c6830e2158eb…

MALICIOUS

PDF

35.6 KB Created: 2020-03-11 10:11:01 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9135909bc8eed004a8582b98e8bf99f6 SHA-1: 5604a9198509ca81c308ddf92792cbda7207b4b4 SHA-256: 3651c6830e2158ebb5fdb4331929dfbfa56339ad8cbe412ea11bf6a22350f65d
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or a distribution mechanism for further malicious content. No scripts were extracted from this sample. The primary attack pattern involves directing users to external resources, potentially for SEO manipulation or to serve additional payloads.

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://techsolutionsunltd.com/uploads/1/3/0/5/130544954/130544954.html#kantianism+or+utilitarianism
    • http://moejordan.com/uploads/1/3/0/5/130551720/6810187.pdf
    • http://lillianjue.net/uploads/1/3/0/5/130551639/vemukalopenefen-nanutaju.pdf
    • http://www.myhomeschoolconnect.com/uploads/1/3/0/5/130590582/7987357.pdf
    • http://www.bohacovalaw.com/uploads/1/3/0/5/130588651/ronotadid_boropiwevo_magazubes.pdf
    • http://enlightentutoring.com/uploads/1/3/0/5/130550657/wajojutesuxu.pdf
    • http://coloradomedicarechoices.com/uploads/1/3/0/5/130590273/3262385.pdf
    • http://makingnocents.com/uploads/1/3/0/6/130604340/9425524.pdf
    • http://girlycrew.com/uploads/1/3/0/5/130540281/9000986.pdf
    • http://thenintendoclubpodcast.com/uploads/1/3/0/2/130289723/tijavesoz.pdf
    • http://www.wicklesspittsburgh.com/uploads/1/3/0/4/130435978/edc1455.pdf
    • http://www.nan-made-bags.com/uploads/1/3/0/7/130775825/gutinitedibomo.pdf
    • http://drvnmoto.com/uploads/1/3/0/6/130620943/7323006.pdf
    • http://shaunesinclair.com/uploads/1/3/0/5/130539935/74b11544fc9.pdf
    • http://www.hagelandsfamilietreffen.com/uploads/1/3/0/6/130639143/2c51e9.pdf
    • http://tomkeifer.net/uploads/1/3/0/8/130815097/kogerore.pdf
    • http://youngproducedesign.com/uploads/1/3/0/2/130271153/7cf81b50bbe5440.pdf
    • http://sustainablesuburbancommunities.com/uploads/1/3/0/2/130270889/ca9c4540ced36.pdf
    • http://webmail.birminghamyouththeatre.co.uk/uploads/1/3/0/8/130874064/tiletiw-tiwanisane-vuzibisovu.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076f8.bin
bb90e80e6152844bd40cab8562a43234a2cc5fe1562aa9fc4a30d4f366c1c7fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F8 7392 bytes

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