Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c462b3ea7d993d8…

MALICIOUS

PDF

47.0 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: 2e27f1fc10d922dbb7cfcb9b5cf97c5b SHA-1: a167c5dd4b1a01fb5c3ece76c5166ac3b7baed11 SHA-256: 8c462b3ea7d993d8ec3e8b3e5eeecfaf1ab9b627d1d66c30402c9c4c7ee36031
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified as a link farm, which is a common technique for distributing malware or conducting phishing campaigns. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of numerous suspicious URLs points to a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://sidebysidesd.org/uploads/1/3/0/6/130639831/b949307cf182.pdf In PDF document text
    • http://byzantinegreek.com/uploads/1/3/0/5/130588678/49ad82a6150c9.pdfIn PDF document text
    • http://hitandmisshomesteader.com/uploads/1/3/0/7/130775679/detapoxu-bolimudilu-sasakep.pdfIn PDF document text
    • http://trustedcannabiscfo.com/uploads/1/3/0/5/130588654/0165885954f4.pdfIn PDF document text
    • http://interact6380.org/uploads/1/3/0/4/130476513/zuraxivananov.pdfIn PDF document text
    • http://www.hmtranslations.com/uploads/1/3/0/6/130621677/53e1d47.pdfIn PDF document text
    • http://develleoper.com/uploads/1/3/0/8/130873798/gajitojedalogup.pdfIn PDF document text
    • http://nvclassical.com/uploads/1/3/0/7/130775440/sivowepifogiruza.pdfIn PDF document text
    • http://mxe.alldogobedience.com/uploads/1/3/0/9/130968917/rejamiximebagemotaw.pdfIn PDF document text
    • http://arcadiagardenslandscape.com/uploads/1/3/0/5/130590618/e16c770ac1416.pdfIn PDF document text
    • http://theovercomersblueprint.com/uploads/1/3/0/6/130604324/130604324.html#how+to+work+an+akai+mpk+miniIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 1

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49F7 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
font_01_sfnt_off00006153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6153 8208 bytes
SHA-256: 4709d449fde896383750671846d79150f7bf387335f9bc7af6e981c791c6ce9e

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