Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a15d261ebd7460…

MALICIOUS

PDF

78.8 KB Authoring application: PDFBox First seen: 2020-09-24
MD5: aa05f3a05e9b0c2c8ef2f37ef07431b0 SHA-1: de45eb9333f693a6fb44488db8c060ef52f0984a SHA-256: 86a15d261ebd7460ce9d88ff04618d4bf4ac097eaf72766bc7391da99798ac92
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical finding for a large number of external PDF links, and a high-confidence ML classification. ClamAV also identified it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The embedded URLs point to numerous PDF files hosted on various domains, suggesting a link farm or distribution mechanism for malicious content. No scripts were extracted, but the overall pattern indicates a phishing or SEO-based malicious distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://pngindianapolis.com/uploads/1/3/0/6/130605030/koxekisisodom.pdf In PDF document text
    • http://princewindsor.com/uploads/1/3/0/7/130740266/zoginisizo.pdfIn PDF document text
    • http://salalounge.club/uploads/1/3/0/7/130740222/gazevorefagefuto.pdfIn PDF document text
    • http://romehighnews.info/uploads/1/3/0/6/130603982/9121aa.pdfIn PDF document text
    • http://adammatheny.com/uploads/1/3/0/7/130740054/d9855d.pdfIn PDF document text
    • http://ateliermarcantoine.com/uploads/1/3/0/4/130488493/4977582.pdfIn PDF document text
    • http://geniusplaylab.com/uploads/1/3/0/5/130588475/dixuzete-vorojuba.pdfIn PDF document text
    • http://iccaroo.org/uploads/1/3/0/5/130550887/mobozos.pdfIn PDF document text
    • http://jjsgroup.net/uploads/1/3/0/3/130379482/9556906.pdfIn PDF document text
    • http://sponsorzs.com/uploads/1/3/0/4/130489131/nugufepuxexew.pdfIn PDF document text
    • http://mail.sass-and-crafts.com/uploads/1/3/0/3/130313673/mijipeva.pdfIn PDF document text
    • http://delaneygmeek.com/uploads/1/3/0/7/130775676/3616199.pdfIn PDF document text
    • http://goedkopebehangers.nl/uploads/1/3/0/3/130313037/1389515.pdfIn PDF document text
    • http://arpi.ca/uploads/1/3/0/3/130379164/6b8ea5c34f4b018.pdfIn PDF document text
    • http://mtd4lyfe.net/uploads/1/3/0/6/130620380/bavozoko-mamir-mitipituvosojig-jeterivi.pdfIn PDF document text
    • http://angelpractitioners.org/uploads/1/3/0/7/130776358/1051078.pdfIn PDF document text
    • http://iqcu.biz/uploads/1/3/0/4/130477490/e870e9a.pdfIn PDF document text
    • http://blackfilmcentre.org/uploads/1/3/0/6/130603975/130603975.html#computer+tally+notes+in+hindi+pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8491 16028 bytes
SHA-256: ca889182d22413b1a5b6446cd5d954c095bfc2c8b2fec1022b19199100617195
font_01_sfnt_off000098ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98AC 1388 bytes
SHA-256: 1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
font_02_sfnt_off0000a3f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3F7 20796 bytes
SHA-256: ba4d1b8bb95d63283103d58bd1c0210d12a01a2f9400be58a6a6e35750371f46
font_03_sfnt_off0000db57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB57 7416 bytes
SHA-256: 3aa9f86222884427d2368155c8ba8f5c0df3367f2081690465e9be4c89767359

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