Malicious PDF — malware analysis report

Static analysis result for SHA-256 37b87f3b15b6da6b…

MALICIOUS

PDF

36.2 KB Authoring application: Serif PagePlus
MD5: d6545a58f26fe17f467990c865a23eea SHA-1: 9c6b7d1fa10b6636f4d91f0df044685919268a2b SHA-256: 37b87f3b15b6da6b53cf65017615f334d59fb2345aae2e80b8f317c817a24c8f
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection tactic. ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to traffic generation or phishing. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact lure.

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://jomowlawncare.com/uploads/1/3/0/7/130739502/a5742a4028b.pdf
    • http://cneachome.com/uploads/1/3/0/5/130589151/novaleleta.pdf
    • http://heythatsprettyneat.com/uploads/1/3/0/5/130589227/6231181.pdf
    • http://k12voip.com/uploads/1/3/0/7/130739288/6987267.pdf
    • http://currycreative.com/uploads/1/3/0/7/130739210/ce515b165c.pdf
    • http://theodishthoughts.com/uploads/1/3/0/6/130621176/7635422.pdf
    • http://www.eliserydemark.com/uploads/1/3/0/8/130873939/vowovox-gofojusagagel-zaxavakelani-folipeberaseme.pdf
    • http://cookingclassatthotupolaresidence.com/uploads/1/3/0/2/130271205/7451107.pdf
    • http://stealthlaptops.com/uploads/1/3/0/4/130435990/4eace8a0f7aa36b.pdf
    • http://cancelatimesharenow.com/uploads/1/3/0/5/130550813/2692334c3e85.pdf
    • http://3d-printer-sex-toys.com/uploads/1/3/0/7/130738526/zudirotok-dokopibutimaliv.pdf
    • http://exponentialtimes.tv/uploads/1/3/0/5/130551654/9183149.pdf
    • http://johncochranartwork.com/uploads/1/3/0/4/130488565/poxalupetakozoki.pdf
    • http://verosoup.com/uploads/1/3/0/2/130270804/bipaw-vekutuve-povut.pdf
    • http://nclandandhome.net/uploads/1/3/0/6/130639767/9928921.pdf
    • http://southerntreasuresgifts.com/uploads/1/3/0/4/130477126/3325941.pdf
    • http://cflucktraining.com/uploads/1/3/0/7/130775951/d8894a9a37d1.pdf
    • http://szml.brdge.org/uploads/1/3/0/7/130775970/130775970.html#polygon+modeling+3ds+max
    • http://heythatsprettyneat.com/uplo

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003182.bin
09e0a16022f5918f5cb4b46446a501f9cbc685074b6e6dbaba28c84c6de78f30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3182 7668 bytes

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