Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c69523b693b2161…

MALICIOUS

PDF

37.7 KB Authoring application: Serif PagePlus
MD5: 38e1b2b57deab9185afe11bf003ac593 SHA-1: 5565879c9b496b5337fae271318c763efb24a9f1 SHA-256: 7c69523b693b21614399996636d11a26866681e24e2b1e789387dde687faf475
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a method to distribute further malicious content or manipulate search engine results. The ClamAV detection and ML classifier strongly suggest malicious intent, aligning with a phishing or spam campaign.

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://cavecellars.com/uploads/1/3/0/5/130589036/fegofu.pdf
    • http://frbcp.com/uploads/1/3/0/8/130814279/01e316ceff4.pdf
    • http://manbookhandbook.com/uploads/1/3/0/2/130289557/pidonadibagu.pdf
    • http://movingbackdrops.com/uploads/1/3/0/4/130435962/7abb2ce5fd8f.pdf
    • http://brasamusic.nl/uploads/1/3/0/8/130813428/6506139.pdf
    • http://demo11.vistait.com/uploads/1/3/0/8/130813732/pusoga_fegurivof_gudanudebolo.pdf
    • http://justleafwell.com/uploads/1/3/0/6/130605258/sozoludemidi.pdf
    • http://po4gen.org/uploads/1/3/0/6/130620232/b21656b7836279.pdf
    • http://techsuny.com/uploads/1/3/0/4/130477805/6131669.pdf
    • http://babylon5cards.com/uploads/1/3/0/7/130738735/887488.pdf
    • http://hawthorneblossoms.com/uploads/1/3/0/8/130813785/6212592.pdf
    • http://ebbandflood.net/uploads/1/3/0/7/130739336/gogafi-wobijujajobonu-togulotawatolu-dejebaziminodaw.pdf
    • http://zhiboyule.chinasummercamp.org/uploads/1/3/0/6/130621959/7771068.pdf
    • http://absolutely-hair.com/uploads/1/3/0/8/130874095/9656354.pdf
    • http://ponometrics.com/uploads/1/3/0/5/130550953/pasunumeda-givugiz.pdf
    • http://qandiawards.com/uploads/1/3/0/4/130483273/8367337.pdf
    • http://devinediamond.com/uploads/1/3/0/4/130435943/ravidiroga.pdf
    • http://entertainmenths.com/uploads/1/3/0/7/130776529/1170841.pdf
    • http://ikeprojects.com/uploads/1/3/0/7/130739093/potimenuzo-mivizeli-delovafuv.pdf
    • http://atelierjpb.com/uploads/1/3/0/5/130551554/7036557.pdf
    • http://collegechristmastree.com/uploads/1/3/0/6/130621592/8148820.pdf
    • http://cdhimpression.com/uploads/1/3/0/7/130776247/5807053.pdf
    • http://plr4.us/uploads/1/3/0/5/130541462/1753180.pdf
    • http://anofasonline.com/uploads/1/3/0/6/130640097/kipumuno.pdf
    • http://tia.media/uploads/1/3/0/3/130379113/9148170.pdf
    • http://zpvdb.bpmtc.com/uploads/1/3/0/2/130288399/130288399.html#deep+breathing+exercises+for+gerd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003055.bin
d0d50f21ece5c1a535b423013824c0080ddd79f01833248f08b0f3ba1c0b74da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3055 7596 bytes

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