Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e491750a8629397…

MALICIOUS

PDF

32.8 KB Authoring application: Adobe PDF Library 9.0
MD5: 555a0b2b16fc7e99b060cade29caa655 SHA-1: 872d24594c2e0df708d410e9a720de3ff19ba41b SHA-256: 9e491750a862939767b755cd3465549b8c5a0a737790d24e15ab7460127ed219
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious traffic redirection intent. No scripts were extracted, but the sheer volume of external links suggests a coordinated effort to drive traffic to potentially malicious content.

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://rcroofingcontractor.com/uploads/1/3/0/6/130620492/0652f68135b4b41.pdf
    • http://mysprout.shop/uploads/1/3/0/6/130621322/8487880.pdf
    • http://figwire.com/uploads/1/3/0/5/130551487/gonamozajusug-nugevorav.pdf
    • http://henrylabs.org/uploads/1/3/0/7/130775583/nomufekiwuz.pdf
    • http://oxfordsupertutors.com/uploads/1/3/0/6/130604733/toriluzuja.pdf
    • http://mdesignbymarsha.com/uploads/1/3/0/6/130621210/341495.pdf
    • http://naildbykk.com/uploads/1/3/0/5/130588231/bipofum_vitolawu_bazesolovuzisav.pdf
    • http://www.trindigo.info/uploads/1/3/0/4/130435846/sefebe.pdf
    • http://knowwebdesign.com/uploads/1/3/0/3/130313433/b9000153a73b.pdf
    • http://arabictandt.com/uploads/1/3/0/5/130550723/ed19abf08793675.pdf
    • http://matthewsprange.co.uk/uploads/1/3/0/3/130323143/5942105.pdf
    • http://folkturk.net/uploads/1/3/0/6/130639982/dutakij_purupetuvu_gareguwerixej.pdf
    • http://deedeetv.com/uploads/1/3/0/3/130379315/gedalap.pdf
    • http://www.nourishandmovefitness.com/uploads/1/3/0/6/130604013/pazijod.pdf
    • http://provateknike.net/uploads/1/3/0/6/130620878/miwomixulo.pdf
    • http://collinturner.com/uploads/1/3/0/5/130590531/xaworafopebul-xofukewelipisuz-bezudu-viveporepoxagid.pdf
    • http://thegradschoolinsider.com/uploads/1/3/0/8/130814754/5841283.pdf
    • http://o7ngg.bpmtc.com/uploads/1/3/0/4/130488227/130488227.html#ielts+listening+12+test+6

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000276c.bin
b5495b7d70c65d5011aa2356effc7e95c46c1867a12ad14bb3da61df11794adb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x276C 6456 bytes

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