Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fbd34ae55ed481…

MALICIOUS

PDF

45.8 KB Authoring application: Pdftk
MD5: 6aeffd3d1162802458b0453d73b53b64 SHA-1: 925ce4ff73c883ea76cb1947c77276466fd37d46 SHA-256: 00fbd34ae55ed481f65c814b439f6c1b50bd465ec4534d07b55e8454674a1fbb
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, identified as a link farm. This heuristic, combined with ML classification and ClamAV detection, strongly suggests a malicious intent, likely related to phishing or distributing further malware. The document body content is heavily obfuscated and unreadable, providing no additional context on the specific lure.

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://wildmedix.co.za/uploads/1/3/0/7/130775551/xifezade.pdf
    • http://mirrorsofgodslove.org/uploads/1/3/0/7/130739817/1034598.pdf
    • http://newfoundsleep.ca/uploads/1/3/0/4/130488069/fesimufizu-roluk.pdf
    • http://mesquitesitting.com/uploads/1/3/0/6/130639611/mipuxurazezerar.pdf
    • http://oceanassassin.com/uploads/1/3/0/2/130274338/0352e15.pdf
    • http://pennysyoga.com/uploads/1/3/0/2/130288522/xejagivovud_kaxafone_nikoketopijige.pdf
    • http://typeemup.com/uploads/1/3/0/6/130621873/dutefozosewatonogek.pdf
    • http://www.loaves4life.org/uploads/1/3/0/5/130543168/c62a60c1c0.pdf
    • http://bogouyulechengdu.br3h.com/uploads/1/3/0/6/130639558/992d419431b89.pdf
    • http://nccsecec.org/uploads/1/3/0/6/130603855/rukizatuvejapo_pibikevu.pdf
    • http://sacredandsovereign.com/uploads/1/3/0/4/130483299/zabibos_jidabazunof_lugoje.pdf
    • http://x0597057xstreamtravel.xsideas.com/uploads/1/3/0/7/130740050/130740050.html#major+religions+similarities+and+differences

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c93.bin
38f51189352e36b0540b5ddda20f53dd0801c06148bf95dff9c59ba26d00e559		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C93 8136 bytes

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