Malicious PDF — malware analysis report

Static analysis result for SHA-256 03b0df433b99b93a…

MALICIOUS

PDF

37.0 KB Authoring application: GIMP
MD5: 102c93c1d7e1cb3c0b232175f9a39299 SHA-1: 1031f0ef70ab85a592ba41b93115c1836d66e446 SHA-256: 03b0df433b99b93a4dd4faf9620438940cda09199e85fd9a638c876320e8129e
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links to external PDF files hosted on various domains. This pattern is indicative of a link farm or a distribution mechanism for further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with the PDF_SEO_LINK_FARM heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sunpink.com/uploads/1/3/0/5/130551192/suwozekonobarimosir.pdf
    • http://comfish.com.au/uploads/1/3/0/5/130541065/2415365.pdf
    • http://p4partyproductions.com/uploads/1/3/0/5/130588542/d63c5437ec7400.pdf
    • http://theilovemebrand.com/uploads/1/3/0/4/130435774/judovakoxuxeja-wuxemiwid-pugotunumijo.pdf
    • http://bestphotographerinaruba.com/uploads/1/3/0/6/130603692/bikolegenizipe_baradabi.pdf
    • http://moderndespot.com/uploads/1/3/0/5/130551153/gubasujibupenoj_riber.pdf
    • http://www.hugsforlgbtq.com/uploads/1/3/0/7/130776737/lenotuzobuvegiwobuv.pdf
    • http://mail.vaxthuset.org/uploads/1/3/0/6/130621277/0d98440e1e20c.pdf
    • http://4upersonally.com/uploads/1/3/0/6/130621447/8152140.pdf
    • http://panavegastudios.com/uploads/1/3/0/4/130483202/fdfa07f1d498200.pdf
    • http://guru-inside.com/uploads/1/3/0/4/130477287/756858fb1.pdf
    • http://izletiposrbiji.net/uploads/1/3/0/6/130621086/wulejetotamupufenova.pdf
    • http://www.buildingbrilliantmindsonline.net/uploads/1/3/0/5/130543787/1d49c.pdf
    • http://nhlitigators.com/uploads/1/3/0/5/130590154/mukipikepobowik-jusiludazo-mijotelutaw.pdf
    • http://mairu-tabi-bonbigirl.com/uploads/1/3/0/6/130605190/badodoka-vapunizenad-zutus.pdf
    • http://marriagemotherhoodmenopause.com/uploads/1/3/0/5/130547215/6852657.pdf
    • http://dupreez.space/uploads/1/3/0/5/130547812/duxolonoxipan.pdf
    • http://suhki-portraits.rominastiebenphotography.com/uploads/1/3/0/8/130873944/130873944.html#1000+most+common+english+words+in+alphabetical+order

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003416.bin
e66df5b065098b86f79c300e766ea9a76fba45a83ee02bcdd1f6da2f8a1404bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3416 7688 bytes

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