Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f623f8b19eb935e…

MALICIOUS

PDF

45.8 KB Authoring application: SWFTools
MD5: 601961892737139fa490b58c2b167f8a SHA-1: 36e612c4e8b6874fbe929eb88da4fd7bcaaa4b83 SHA-256: 0f623f8b19eb935e75dd5690aa92b5464453d08894b4debbb3e0ea227ec450cd
172 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing lure and a link farm. The document body contains a screenshot disguised as an installation manual, likely intended to trick users into clicking embedded links. These links lead to a large collection of other PDFs, suggesting a tactic to manipulate search engine results or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 45 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://www.cme4hummer.com/uploads/1/3/0/7/130740116/1552707.pdf
    • http://streetwerkzcustoms.com/uploads/1/3/0/6/130620574/e13607.pdf
    • http://virginiabeachfishing.org/uploads/1/3/0/6/130621732/lunosope.pdf
    • http://eventandmeetingplanning.com/uploads/1/3/0/2/130289638/2108506.pdf
    • http://theoilymixer.com/uploads/1/3/0/6/130604498/a3332c60.pdf
    • http://bosslessforever.com/uploads/1/3/0/5/130550973/simodagimizumi.pdf
    • http://jlc.press/uploads/1/3/0/7/130738903/bokuxizij_mazir.pdf
    • http://x-statics.com/uploads/1/3/0/5/130550774/213916045e.pdf
    • http://metroplano.com/uploads/1/3/0/5/130550675/5bfb5b8a545021.pdf
    • http://weldersunion.org/uploads/1/3/0/6/130605179/945274.pdf
    • http://222emainstreet.com/uploads/1/3/0/5/130590217/13d1404a.pdf
    • http://coacosmetics.com/uploads/1/3/0/7/130776252/83391.pdf
    • http://gypsy-j.com/uploads/1/3/0/4/130488286/8129032.pdf
    • http://whitestonecloud.com/uploads/1/3/0/6/130620437/3976274.pdf
    • http://mayravaloski.com/uploads/1/3/0/8/130813132/0e5720.pdf
    • http://71-159-221-62.overtimefitness.com/uploads/1/3/0/5/130550844/130550844.html#carrier+air+cooled+chiller+installation+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006253.bin
480dee3605d3a9a14cc60f19ab792d0a7a52d4e13fda197a3ce06f4064d09464		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6253 4948 bytes

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