Malicious PDF — malware analysis report

Static analysis result for SHA-256 6241e53fda8d7991…

MALICIOUS

PDF

43.1 KB Authoring application: PDFedit
MD5: 1922dedc7f65f1420250ac2178c07767 SHA-1: 4b7782718db3c1d0c601ae63ba570db9612db164 SHA-256: 6241e53fda8d7991f1806da48b6d61652aae3d6f6aa24ef74e2f9380f5a753de
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm designed to redirect users to malicious content. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics further confirm the malicious nature of the file. The embedded URLs are likely part of a phishing or malware distribution scheme, aiming to trick users into downloading further malicious files.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://5053lankershim.com/uploads/1/3/0/6/130620572/1342214.pdf
    • http://newhomebuildermelbourne.com.au/uploads/1/3/0/6/130639632/a657986120fc9.pdf
    • http://numberoneagira.com/uploads/1/3/0/5/130588724/5496363.pdf
    • http://jimmyplease.com/uploads/1/3/0/7/130775145/nekusivujabi_jasolozugogol_luwemijej_wajuwopu.pdf
    • http://summercampdiary.com/uploads/1/3/0/6/130639781/vanudosufatutibovis.pdf
    • http://saintsanonymous.org/uploads/1/3/0/4/130489367/soranuvalinimebixado.pdf
    • http://www.2enkindle.com/uploads/1/3/0/4/130489240/lupagajoza.pdf
    • http://reallifegirl.com/uploads/1/3/0/8/130813320/kitaxudi.pdf
    • http://idalmo.com/uploads/1/3/0/5/130539295/655feeab.pdf
    • http://balonskydancer.net/uploads/1/3/0/7/130775911/cc70b1d5686aa97.pdf
    • http://mezzosoprano.site/uploads/1/3/0/2/130291696/kijorotob.pdf
    • http://moralityinthemarketplace.com/uploads/1/3/0/2/130291544/3462882.pdf
    • http://brothersink.net/uploads/1/3/0/4/130436139/f15f5a7366c0b9.pdf
    • http://revelationsmagazine.com/uploads/1/3/0/7/130775358/5120733.pdf
    • http://mail.diamondcb.com/uploads/1/3/0/5/130551745/1484223.pdf
    • http://thenobelow.com/uploads/1/3/0/5/130542852/ronopubew_dukuj.pdf
    • http://healthybonepoints.org/uploads/1/3/0/5/130588618/09827d43cd4d9b2.pdf
    • http://bandonplayhouse.com/uploads/1/3/0/4/130491356/9255707.pdf
    • http://cloud-token-wallet.com/uploads/1/3/0/4/130476733/jefeporuputovez-gavafa-nojesi-voferiwusezonob.pdf
    • http://mikeshurig.com/uploads/1/3/0/6/130604520/f50cc50c.pdf
    • http://elizabethgracepaperandpen.com/uploads/1/3/0/6/130604263/mijoxowedasoj-gakigawo.pdf
    • http://myidealventures.com/uploads/1/3/0/7/130740623/tezexel.pdf
    • http://mymonarchs.com/uploads/1/3/0/6/130620684/telulu_tipixutape_xagipikopomak_jerabo.pdf
    • http://metropolitancabinetworks.com/uploads/1/3/0/7/130776132/2851774.pdf
    • http://randychapel.net/uploads/1/3/0/8/130814594/xatitu.pdf
    • http://lhkv4.salon225.com/uploads/1/3/0/2/130287445/130287445.html#solution+manual+of+atkins+physical+chemistry

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004499.bin
4deb7dd77c64205d2b52a0b4398b4da894cd21908b95b472496a3534d2d9f9ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4499 7904 bytes

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