Malicious PDF — malware analysis report

Static analysis result for SHA-256 a57645c028068cf8…

MALICIOUS

PDF

55.3 KB Authoring application: Soda PDF
MD5: f26e8973283db211084555cf8adba7a4 SHA-1: 25bb278f78e89c1b1c980efe89aa1b8c5923ac22 SHA-256: a57645c028068cf8b7cf2d50df5c96d819fabb24e140a99a8e2ee859a422e8b6
150 Risk Score

Malware Insights

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

The PDF contains a lure related to a '12 week diet and exercise plan' and hosts a large number of external links to other PDF files, indicating a link farm or phishing distribution mechanism. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution via these linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://psynergyequine.net/uploads/1/3/0/6/130639379/juvuxewakedixo.pdf
    • http://nofeebt.com/uploads/1/3/0/5/130542852/8398219.pdf
    • http://gonewberry.com/uploads/1/3/0/4/130483454/xotatapanidolopus.pdf
    • http://omwroadside.com/uploads/1/3/0/5/130590257/9655069.pdf
    • http://relief-at-hand.com/uploads/1/3/0/7/130776520/jinevudimowavun.pdf
    • http://www.recycleshare.com.au/uploads/1/3/0/4/130435562/9710829.pdf
    • http://baltictradeservice.com/uploads/1/3/0/5/130551487/b9366.pdf
    • http://letstradeshirts.com/uploads/1/3/0/4/130483345/bepipupigomu-gepizip-zedunurebuveta-sokorepoboluro.pdf
    • http://restorehouse.org/uploads/1/3/0/3/130312925/telape.pdf
    • http://tanjoy.net/uploads/1/3/0/6/130605116/9fef43d.pdf
    • http://moment2meditate.org/uploads/1/3/0/5/130588149/6154857.pdf
    • http://webmail.thesinglespoon.com/uploads/1/3/0/4/130488851/130488851.html#12+week+diet+and+exercise+plan+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fa8.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA8 2616 bytes
font_01_sfnt_off00006843.bin
b195ba776360337e0c8847a1f70ebf7e776628c0b6b62df72d82cae76b96cbf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6843 16248 bytes
font_02_sfnt_off0000808e.bin
c0273519d8f1604eddaf2648979dbe99e0bd2bf975aa1ba911cb32b8925ad4e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x808E 8568 bytes

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