Malicious PDF — malware analysis report

Static analysis result for SHA-256 852d5b5372e252ac…

MALICIOUS

PDF

29.8 KB Authoring application: Karbon First seen: 2020-09-24
MD5: aa6fc63a53caed9cd8762d95373fe26f SHA-1: 59ab65bc846ed0d46019c53b566244fe8c2d1269 SHA-256: 852d5b5372e252ac2efcf4e3644ea01425ff681ea98ee3b411ef2ded649bd6b1
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO spam or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, classifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs are the primary IOCs, suggesting a campaign focused on redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://northdallasepilepsy.com/uploads/1/3/0/2/130272356/b4895fa006.pdf In PDF document text
    • http://powerbabes.net/uploads/1/3/0/3/130379226/tekurir.pdfIn PDF document text
    • http://cesartechnologiesltd.com/uploads/1/3/0/5/130588856/3039160.pdfIn PDF document text
    • http://desertside.com/uploads/1/3/0/5/130541271/rotodakevojafeza.pdfIn PDF document text
    • http://coastalchurchmaine.com/uploads/1/3/0/6/130639462/viviludozaf-kavikimoxeve-kevaruze.pdfIn PDF document text
    • http://www.mywealthylife.org/uploads/1/3/0/8/130813553/bomava_tidex_gekurupovaluz_mopunuzonepojom.pdfIn PDF document text
    • http://bikeshop.gettysburgbicycle.com/uploads/1/3/0/5/130551342/5595525.pdfIn PDF document text
    • http://kbcelevate.com/uploads/1/3/0/8/130813898/kuparulirazikum.pdfIn PDF document text
    • http://bigislandeventrentals.com/uploads/1/3/0/3/130323298/756002.pdfIn PDF document text
    • http://blingamabobs.com/uploads/1/3/0/6/130604264/c5b871.pdfIn PDF document text
    • http://sinmaps.com/uploads/1/3/0/4/130436071/jefavulubepodomapus.pdfIn PDF document text
    • http://ipraymovement.com/uploads/1/3/0/5/130542727/55c8657c875a.pdfIn PDF document text
    • http://aquestbegins.prayerknight.com/uploads/1/3/0/6/130605312/8175080.pdfIn PDF document text
    • http://digitalvitaminagency.com/uploads/1/3/0/2/130289524/kipemesovoval.pdfIn PDF document text
    • http://www.amityvilleroofing.com/uploads/1/3/0/7/130739705/2663484.pdfIn PDF document text
    • http://nrvikingspiritwear.com/uploads/1/3/0/5/130590375/3893725.pdfIn PDF document text
    • http://ttthardstyle.com/uploads/1/3/0/2/130274282/130274282.html#libro+de+patologia+robbins+9+edicion+pdfIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A72 7488 bytes
SHA-256: 69877b32d35b289b57ca480bc693e3e04c2103147e59fc969efb41f4646fc69f

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