Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e4143fa65cd0ea…

MALICIOUS

PDF

33.0 KB Authoring application: Karbon First seen: 2020-09-24
MD5: c4190c1c7c284dae6b1825fdbbd3cfbd SHA-1: 189cc69a8c872b91a5c740d148be7d901653ce8f SHA-256: 82e4143fa65cd0eafc43927b8ed7b0ffdcfc9a0505f4e9ef57b9ec754b5cbc8b
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. This suggests the document's primary purpose is to redirect users to malicious websites, likely for malware distribution or phishing. The ClamAV detection and ML classifier further support its malicious nature, classifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://durhamyouthprograms.org/uploads/1/3/0/4/130478520/kutub.pdf In PDF document text
    • http://homoses.ru/uploads/2020/01/29/7191060.pdfIn PDF document text
    • http://cyclebavaria.com/uploads/1/3/0/6/130620769/pivosa_pibepovebitojim_nadewidube_sudofamubedu.pdfIn PDF document text
    • http://donttakemysunshine.com/uploads/1/3/0/2/130287311/dapitifexi_mitesobaju_getobi.pdfIn PDF document text
    • http://scope-for-growth.com/uploads/1/3/0/5/130543653/7580911.pdfIn PDF document text
    • http://jobax.z-kiski.fun/uploads/2020/01/28/1727014.pdfIn PDF document text
    • http://marleyandcophotography.com/uploads/1/3/0/6/130603825/6770560.pdfIn PDF document text
    • http://mmshop.club/uploads/1/3/0/6/130620537/rizuzezu.pdfIn PDF document text
    • http://oftsinwiltit.pro/uploads/2020/01/27/vinepa_vetus_gixexob_pemomozimujux.pdfIn PDF document text
    • http://carmentomassetti.com/uploads/1/3/0/5/130550787/5b5e4e01.pdfIn PDF document text
    • http://nationalriskmanagementgroup.com/uploads/1/3/0/6/130604525/130604525.html#azure+cloud+iconsIn PDF document text
🗂 Part of campaign: marleyandcophotography.com 4 samples

Related samples 8

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_off00001252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1252 7764 bytes
SHA-256: d6310412831795982d5e72438522d159a626da015adf3462faca352c9583b9b2

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