Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad53afd80db08163…

MALICIOUS

PDF

53.2 KB Authoring application: OpenOffice.org
MD5: fe51df25988fb754347b2c16d976e5ea SHA-1: ea77f52f4714508e2c3e1f7b86ab06b1f9ff571a SHA-256: ad53afd80db0816313c270d5837bb19e9fde9c88693f4c44a679fad6c5517520
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning or phishing. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body, though partially corrupted, mentions 'Ielts 12 test 8 reading passage 2', suggesting a lure to trick users into accessing the linked content. No scripts were extracted from this sample.

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://americanhazelnut.co/uploads/1/3/0/8/130813539/5467057.pdf
    • http://aacnhillcity.com/uploads/1/3/0/6/130621700/nozoluviru_refum.pdf
    • http://songarts.com/uploads/1/3/0/4/130435622/dinufevalax_tobewo.pdf
    • http://rep-christ.com/uploads/1/3/0/5/130543063/1efc10.pdf
    • http://thingsome.com/uploads/1/3/0/3/130379363/tizekimivuto-zodopurosolos.pdf
    • http://myjeshop.com/uploads/1/3/0/6/130604127/7101606.pdf
    • http://www.tgc-photo.com/uploads/1/3/0/4/130488851/4628340.pdf
    • http://awpcmarianna.com/uploads/1/3/0/7/130776474/1fe614e2c270a.pdf
    • http://nourishinglynatural.com/uploads/1/3/0/5/130552097/kotofomiseto-lizota-bameb.pdf
    • http://nakedcleaningbrightonandhove.co.uk/uploads/1/3/0/6/130603761/dc85316ec.pdf
    • http://nu9empire.com/uploads/1/3/0/5/130550787/vivitulinakogid.pdf
    • http://theknittingroom.co.uk/uploads/1/3/0/7/130740412/7089638.pdf
    • http://djournalebydn.com/uploads/1/3/0/6/130621244/c25699b19d54.pdf
    • http://ktrpo.com/uploads/1/3/0/8/130874218/paluxew_ridegewiwevi_jetikesifugul_bugonu.pdf
    • http://tristarlogos.com/uploads/1/3/0/7/130738647/9f7a18f20a4a.pdf
    • http://bakersbible.online/uploads/1/3/0/5/130551558/kotuluvujikoxew.pdf
    • http://exchange.ladse.org/uploads/1/3/0/5/130550994/130550994.html#ielts+12+test+8+reading+passage+2

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001213.bin
946cc6b103390e0a449090058be8f422e7955b6e883b4ec6cdd8a8c79b00036a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1213 8172 bytes

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