Malicious PDF — malware analysis report

Static analysis result for SHA-256 357f3bc3acf1236f…

MALICIOUS

PDF

33.5 KB Authoring application: Soda PDF
MD5: 604ff7e54fcf07bf53ed8f44b8e9e31b SHA-1: dc8c19e64d853345710afc68f4bcef0a6bf18132 SHA-256: 357f3bc3acf1236fb93baa925d8477b923b623f111b1c82f90d661a8db34ae70
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent. The document body contains garbled text mixed with legitimate-sounding phrases about PDF readers and upgrades, likely an attempt to disguise the malicious links.

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://www.fullcircleled.com/uploads/1/3/0/5/130590157/6897267.pdf
    • http://mvleoclub.com/uploads/1/3/0/4/130476538/kexunela-liwovux.pdf
    • http://www.pwlandscaping.services/uploads/1/3/0/5/130542936/jawijajopavudubero.pdf
    • http://boulevardathens.org/uploads/1/3/0/8/130815026/9e36b30a8449.pdf
    • http://6monthsatatime.org/uploads/1/3/0/8/130814576/menodi.pdf
    • http://legacybluesfrenchbulldogs.com/uploads/1/3/0/2/130288488/zinasami.pdf
    • http://chinacrocodile.com/uploads/1/3/0/6/130639734/4f5efca65c0.pdf
    • http://www.nelsonsoutdoors.com/uploads/1/3/0/6/130621143/gewetujut.pdf
    • http://abullfrogstudio.com/uploads/1/3/0/2/130288458/1248488.pdf
    • http://carlinnguyen.com/uploads/1/3/0/4/130476720/13f5df14800.pdf
    • http://hiawathaparkfriends.org/uploads/1/3/0/5/130588708/e0cdb0c6cbf223f.pdf
    • http://www.ywamshipsgulfcoast.org/uploads/1/3/0/8/130873918/tezexinatobeted.pdf
    • http://armstrongdesignbuild.com/uploads/1/3/0/3/130323412/lelarefokiso.pdf
    • http://deathbyiptv.ca/uploads/1/3/0/7/130775953/danedujegalaj.pdf
    • http://integrium.integrium-sg.com/uploads/1/3/0/8/130874029/552236f5.pdf
    • http://trainingcenterchurches.net/uploads/1/3/0/6/130621610/1783367.pdf
    • http://slayedalteregos.com/uploads/1/3/0/5/130547613/wumobojegado_winodaso_wemudamefesad.pdf
    • http://domisolka.net/uploads/1/3/0/8/130814360/jixokaromopipixigox.pdf
    • http://counterplayinitiatives.com/uploads/1/3/0/7/130775907/1c467eb.pdf
    • http://lakescary.com/uploads/1/3/0/7/130739211/8867099.pdf
    • http://www.theredheartproject.org/uploads/1/3/0/6/130620234/wokatalowefabamime.pdf
    • http://salvosurfboards.com/uploads/1/3/0/4/130476589/6354814.pdf
    • http://bandyphotos.com/uploads/1/3/0/7/130738650/103989.pdf
    • http://kbkwmllc.com/uploads/1/3/0/8/130874543/supiroruz.pdf
    • http://www.brynbeaute.com/uploads/1/3/0/2/130273801/legupodis.pdf
    • http://www.thenannysden.com/uploads/1/3/0/7/130776602/130776602.html#free+upgrade+adobe+reader+8+to+10

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002068.bin
8049c7c1268afc246d3b1dd2b9af365c89c52f281acc4a1b841c6a6d7333ea75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2068 7244 bytes

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