Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a74df73f4fa40e…

MALICIOUS

PDF

34.4 KB Authoring application: pdf-parser
MD5: 643ce643116ebbca4c09dd0040b715b3 SHA-1: 3f040d320260e6b1bc537380ac2174e11a5b305a SHA-256: 82a74df73f4fa40ec1ad3423c9e5ae7e8508d37377cd49e28bfe0052a8f46ee2
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, indicating a link farm strategy. This is strongly suggestive of SEO-based phishing or a distribution network for malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. 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.
  • 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://basedstickman.com/uploads/1/3/0/6/130604286/913113d.pdf
    • http://www.emojeetravel.com/uploads/1/3/0/8/130813100/xopokilijadedibivas.pdf
    • http://marketingtipsnow.com/uploads/1/3/0/3/130379075/3769bc5834.pdf
    • http://mnbatigers.net/uploads/1/3/0/7/130739043/2b2a33f75fdfb3.pdf
    • http://pittsburghcatchwrestling.com/uploads/1/3/0/8/130874386/kepezililozutal.pdf
    • http://rodneyspooner4senate.com/uploads/1/3/0/7/130775355/15ab234c4.pdf
    • http://tri-countygutters.com/uploads/1/3/0/6/130605059/ganigo-semifadixeg-jopavadugo-wikuxuz.pdf
    • http://glossyglamgirls.com/uploads/1/3/0/8/130813782/wulodiv_xelunufurukofi_kiwugavukasu_feziwigofon.pdf
    • http://virtotour.com/uploads/1/3/0/5/130588532/65bba8b35ac28.pdf
    • http://mockingbird.coffee/uploads/1/3/0/5/130542758/e783f057acc0.pdf
    • http://conqueringtheconflict.com/uploads/1/3/0/3/130379504/depuvavapina.pdf
    • http://sweet-southern-sass-mobile-boutique.com/uploads/1/3/0/7/130775447/sijulofis-vewuda-ruxerif.pdf
    • http://soundtransitfacts.org/uploads/1/3/0/4/130436313/daa7dd5664.pdf
    • http://tahoesierracleanair.info/uploads/1/3/0/2/130272579/2962708.pdf
    • http://www.vambiente.com/uploads/1/3/0/6/130603932/rotolunevugagub_bijexojifivaxej.pdf
    • http://crystalwittenutrition.com/uploads/1/3/0/7/130739975/2488365.pdf
    • http://www.planetstompers.org/uploads/1/3/0/7/130775768/0a220b642821a4b.pdf
    • http://mountainpinestreetreachprogram.com/uploads/1/3/0/7/130774981/funesejupov.pdf
    • http://horacekingston.com/uploads/1/3/0/7/130739247/2b0ca6998ef090.pdf
    • http://mta-sts.kyriegallery.com/uploads/1/3/0/5/130588588/bupikikuxutuwov.pdf
    • http://metdonuts.com/uploads/1/3/0/8/130814397/2515849.pdf
    • http://6jfes.slpny.com/uploads/1/3/0/4/130490410/130490410.html#convert+base64+to+image+url+in+javascript
    • http://sweet-southern-sass-mobile-boutique.com/uploads/1/3/0/7/130775447/sijulofis-vewuda-ruxerif.p

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000213b.bin
c70d0d64e15caefd29b410130f2ac847663e1190986902bc33b240c359f4d8e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x213B 9280 bytes

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