Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f78ad591b689c6…

MALICIOUS

PDF

36.7 KB Authoring application: Serif PagePlus
MD5: d9a9ad390e5ba6e5457730d6abe3107f SHA-1: 087e3d77c4900ab29406beac7d35b7a6c9697bce SHA-256: 76f78ad591b689c68e4c807d83d807aaefff3eae247d9d75c5a1234c7e62dada
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to numerous other PDF files hosted on various domains, suggesting a link farm or a distribution mechanism for malicious content. The ML classifier and ClamAV detection further support its malicious nature. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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://www.troypriest.com/uploads/1/3/0/6/130621788/futadilub-fatazudujiregos.pdf
    • http://thelookoutdallas.com/uploads/1/3/0/8/130813913/gugudigunafilufaw.pdf
    • http://annearundelhandcenter.com/uploads/1/3/0/6/130620251/mizozogepizasi.pdf
    • http://fineclockmarket.com/uploads/1/3/0/3/130379078/sutuviwo.pdf
    • http://lostpupper.club/uploads/1/3/0/2/130272586/4c1251ca8cc.pdf
    • http://craneandrigging.solutions/uploads/1/3/0/5/130588403/kutenupiw.pdf
    • http://www.snowbirdhomemanagement.com/uploads/1/3/0/6/130604580/pasaxitowovapan.pdf
    • http://denis-tanguay.com/uploads/1/3/0/2/130289441/83a93b4de.pdf
    • http://mailserver.alexriley.co.uk/uploads/1/3/0/5/130543093/4739516.pdf
    • http://michaelbluejay.org/uploads/1/3/0/2/130287866/jirasusupopofegovo.pdf
    • http://xnadu.com/uploads/1/3/0/2/130288594/silatepu.pdf
    • http://chantelle-shaw.com/uploads/1/3/0/6/130604473/tiliko-werezid-pituzuwuxabar.pdf
    • http://artclassdallas.com/uploads/1/3/0/6/130621484/lejoxunomizoxik.pdf
    • http://garysaulslcas.com/uploads/1/3/0/6/130604799/4398616.pdf
    • http://raisingvibeswellness.net/uploads/1/3/0/8/130874128/zubalijidoraz-zubanexi.pdf
    • http://hummingbeings.com/uploads/1/3/0/4/130435524/93435adde5a8.pdf
    • http://www.buzzsneaker.online/uploads/1/3/0/8/130814763/logoxat.pdf
    • http://soyseal.com/uploads/1/3/0/7/130739811/lanejugipubufasib.pdf
    • http://krystalskrafts.com/uploads/1/3/0/5/130539659/xagurigifitoxe_gososupexageraj_zasar_mubuve.pdf
    • http://www.k9playtimestore.com.au/uploads/1/3/0/4/130483806/demud.pdf
    • http://mywindowfarms.com/uploads/1/3/0/5/130550995/wejepekilolut.pdf
    • http://74-123-73-94.mgwnet.com/uploads/1/3/0/2/130272363/wujobijosumux.pdf
    • http://cpanel.jenisonchoirs.org/uploads/1/3/0/5/130589267/bd094c89.pdf
    • http://www.m.mcintoshchurch.org/uploads/1/3/0/7/130776308/130776308.html#hillsong+united+oceans+piano+notes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c85.bin
10e88f354c499167921b4ef7c7a471cd26992ab21fe1930f0ad48df287dcf9e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C85 7912 bytes

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