Malicious PDF — malware analysis report

Static analysis result for SHA-256 10bb2d3fe6a84140…

MALICIOUS

PDF

65.3 KB Authoring application: ImageMagick First seen: 2020-09-15
MD5: 60faf0af825116b4e644e71ff98a8efe SHA-1: e59fe39c93d080c24670cd6e5738410ca345d4e3 SHA-256: 10bb2d3fe6a84140902afd650a955a6999b5ce66001abc3b938ccadda8148081
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the heuristic 'PDF_SEO_LINK_FARM' suggests the document's primary function is to host these links.

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://limo-austin.net/uploads/1/3/0/7/130738667/2488560.pdf In PDF document text
    • http://motoringlegaladvice.com/uploads/1/3/0/4/130476317/3593553.pdfIn PDF document text
    • http://chrislloydmusic.com/uploads/1/3/0/6/130604934/pemisub.pdfIn PDF document text
    • http://onlinestaginghelp.com/uploads/1/3/0/7/130739982/wowikoriv.pdfIn PDF document text
    • http://cheeworks.com/uploads/1/3/0/5/130550891/nalomalerinetip-jenupofirekatul-mazawode-tagixem.pdfIn PDF document text
    • http://thesustainables.biz/uploads/1/3/0/5/130543568/4678236.pdfIn PDF document text
    • http://residenciales.org/uploads/1/3/0/3/130323412/4202038.pdfIn PDF document text
    • http://killerwailslive.com/uploads/1/3/0/5/130547215/7651638.pdfIn PDF document text
    • http://familiesfeedinghope.com/uploads/1/3/0/5/130588928/kanadup_bewol.pdfIn PDF document text
    • http://covenantfellowshipchurches.org/uploads/1/3/0/6/130621545/5030799.pdfIn PDF document text
    • http://andreamingels.com/uploads/1/3/0/5/130550708/7d227125a13f74.pdfIn PDF document text
    • http://newdawnbirthdoula.com/uploads/1/3/0/8/130874307/89718805f97bb17.pdfIn PDF document text
    • http://www.severedthumbsart.com/uploads/1/3/0/2/130289652/zinik_fufefedufe_mimutubadiw_potolu.pdfIn PDF document text
    • http://autodiscover.fillogreekbakeshop.com/uploads/1/3/0/7/130740316/ae989e36429.pdfIn PDF document text
    • http://mrsscharnhorst.com/uploads/1/3/0/2/130272327/4226ca.pdfIn PDF document text
    • http://beingsemprendedores.com/uploads/1/3/0/2/130288729/xavizati-ruzenof-wepagomin.pdfIn PDF document text
    • http://51j6tc.bdgct.com/uploads/1/3/0/3/130323335/130323335.html#brothers+grimm+original+fairy+tales+pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: arapaho-massage.com 15 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CB 10200 bytes
SHA-256: bae1835182b7b87e3041ecc955f0956249a47c4568033b7c03a66d9a401f8396
font_01_sfnt_off0000b574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB574 16924 bytes
SHA-256: a62e430ddda5349d5655115c71b7eb2244ace9df6ce8918324bb639113c7e8fc