Malicious PDF — malware analysis report

Static analysis result for SHA-256 50fdfaddaa597a49…

MALICIOUS

PDF

38.4 KB Authoring application: PDFedit First seen: 2020-08-10
MD5: 8cad04bed60ec469925752693cb4d796 SHA-1: f17a6d925558463dffe822763491bd63357edc8e SHA-256: 50fdfaddaa597a49224867dae8526debccc5db73e0104cac37b52760fe57c1a7
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection further supports its malicious nature. The document body text appears to be corrupted or obfuscated, but the presence of URLs is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://scope-for-growth.com/uploads/1/3/0/5/130543653/7580911.pdf In PDF document text
    • http://allyourteeth.com/uploads/1/3/0/5/130539866/3054572.pdfIn PDF document text
    • http://wendyohlendorf.com/uploads/1/3/0/6/130621281/tikepoxe.pdfIn PDF document text
    • http://callananfitclub.com/uploads/1/3/0/7/130776754/desawetugugibe_xudojo_bajuwesinu_rukunako.pdfIn PDF document text
    • http://asociacionperiodistaspr.org/uploads/1/3/0/5/130589083/domurag.pdfIn PDF document text
    • http://cmcflourguam.com/uploads/1/3/0/6/130604656/20f9a1b32.pdfIn PDF document text
    • http://aprendeinlgesrapido.com/uploads/1/3/0/4/130483667/lawufosuzomaxag_waxarezaru_wubajowegol.pdfIn PDF document text
    • http://nekima.net/uploads/1/3/0/6/130603927/4456040.pdfIn PDF document text
    • http://ankezimmermann.ca/uploads/1/3/0/5/130590403/130590403.html#garnier+sheet+mask+colesIn PDF document text
🗂 Part of campaign: marleyandcophotography.com 4 samples

Related samples 2

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_off000011de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE 8984 bytes
SHA-256: 5547400ed653b2bbf404980ba042e9bd24175595f024ceced6b12573d5822920

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