Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ae273e616c387c…

MALICIOUS

PDF

45.3 KB Authoring application: pdf-parser
MD5: dbb6d2e358157db04c336572163baea4 SHA-1: 8301c55959326635997cd15649eb71baef02001f SHA-256: 48ae273e616c387cf05aefad3cf1090995a6859d0cc5f60f905e75077a9a15a4
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs point to various domains, suggesting a distributed infrastructure for hosting malicious content.

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://roosterpr.agency/uploads/1/3/0/2/130289676/3225065.pdf
    • http://emeraldconservation.com/uploads/1/3/0/2/130288383/lezukibarevirep.pdf
    • http://ats.summitadventurecabin.com/uploads/1/3/0/6/130620990/mimasasijaki_migev_jinokakizobad.pdf
    • http://www.instrumentumpacis.com/uploads/1/3/0/6/130604488/7f221b475c.pdf
    • http://otherworldlywaxesandwhatever.com/uploads/1/3/0/6/130603977/selikasununimepufuw.pdf
    • http://welcometoautomation.com/uploads/1/3/0/5/130589420/dazatun_savizeluko_gadedokadejude_vuwof.pdf
    • http://michaeleggerl.com/uploads/1/3/0/6/130640066/1647365.pdf
    • http://dillyspianolessons.co.uk/uploads/1/3/0/7/130739143/e0ee89.pdf
    • http://elitecolognes.com/uploads/1/3/0/6/130639231/mekerekubulo.pdf
    • http://quillskywritings.com/uploads/1/3/0/5/130588627/0b1698135b8f6ae.pdf
    • http://chaliceoakfoundation.org/uploads/1/3/0/2/130291415/7552672.pdf
    • http://fcfcp.com/uploads/1/3/0/3/130313155/retiramuxo_veleb_mowawenavowi_sibebux.pdf
    • http://lianafaith.net/uploads/1/3/0/6/130604579/c875443.pdf
    • http://bdcont.com/uploads/1/3/0/5/130589171/ramigidevunakilitema.pdf
    • http://xn--kyourbeauty-fbb.com/uploads/1/3/0/2/130274345/74bbf3c0.pdf
    • http://dylanwyke.com/uploads/1/3/0/3/130379194/130379194.html#low+grade+mucinous+tumor+appendix

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000580f.bin
e415dd66ca3eb20edc129bb7ee5e440016c9cac01d30b52d29df31ca7dd7d078		 pdf-font-stream PDF embedded font (sfnt) at offset 0x580F 7576 bytes

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