Malicious PDF — malware analysis report

Static analysis result for SHA-256 d20c1b5977e1b767…

MALICIOUS

PDF

36.5 KB Authoring application: ImageMagick
MD5: c69658880293c6c224b2e67e369fe717 SHA-1: 0ceee0ccdf358241a5d5adb91096b2bb181b1f2f SHA-256: d20c1b5977e1b767c5f7ee13bf68ed7cff298c3843121f5d90184907b51efb6a
150 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 numerous PDF files hosted on various domains, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier further support the malicious nature of this file. No scripts were extracted from this sample.

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://thecanteenon13.com/uploads/1/3/0/6/130620985/xutuxogaliza_wusujaj_mijav_pozojogagi.pdf
    • http://aperitif-sticks.at/uploads/1/3/0/6/130603764/lizefisime.pdf
    • http://gabrielelaw.com/uploads/1/3/0/7/130775134/sugiwafemozomiv_wudetipijese.pdf
    • http://northpolestroll.com/uploads/1/3/0/6/130639087/1295481.pdf
    • http://reset.studio/uploads/1/3/0/6/130640225/49a76d2171475.pdf
    • http://www.allurescapes.com/uploads/1/3/0/5/130588201/xegesemomizavub-zomubof-xorugefajex.pdf
    • http://sisterologyblog.com/uploads/1/3/0/2/130289595/povawuzoju.pdf
    • http://cpanel.nicholausjewelry.com/uploads/1/3/0/6/130605346/jagagisagewire-tezuzuwogoder-luditemakos-bitix.pdf
    • http://www.mayfairandcompany.com/uploads/1/3/0/6/130604475/bejereleredeni-putajokezebapes-vikevagal-beseredilativiv.pdf
    • http://www.rjharrigan.com/uploads/1/3/0/5/130551434/51a0a484.pdf
    • http://mikhaelfarah.com/uploads/1/3/0/5/130550750/xosolukemabujisaro.pdf
    • http://picturereadit.com/uploads/1/3/0/6/130639655/raniva.pdf
    • http://desatascosgava.net/uploads/1/3/0/5/130540585/zidurotisupi-wabuzij.pdf
    • http://needfulthingsconcierge.com/uploads/1/3/0/8/130814874/c32263b209.pdf
    • http://kaichillc.com/uploads/1/3/0/5/130588670/695f248.pdf
    • http://www.samschuth.com/uploads/1/3/0/4/130435582/c0522f56235.pdf
    • http://thepreambleparty.com/uploads/1/3/0/2/130272500/vutevesap_bozewutafexa.pdf
    • http://a1374119xstreamtravel.xsideas.com/uploads/1/3/0/2/130291030/130291030.html#document+file+to+pdf+converter+online
    • http://mikhaelfarah.com/uploads/1/3/0/5/130550750/xosolukema

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f98.bin
737e0617459e2c6af1e89147e8fb53d2e66ea493abfc00041177a4df3dc151ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F98 8512 bytes

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