Malicious PDF — malware analysis report

Static analysis result for SHA-256 14934d619bdc31a9…

MALICIOUS

PDF

82.9 KB Created: 2021-03-21 02:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d811bbc9c8590aadb7c2b7b50a26df14 SHA-1: dacb5b371ef18f5fff568c63f73b300ced542446 SHA-256: 14934d619bdc31a945f4ad3e134731e22e1b52cad3f29bcdb30713930bad4112
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam and phishing. One prominent URL, 'https://maypoin.ru/award?keyword=discuss+the+school+as+a+bureaucratic+organization+pdf', suggests a lure to a malicious site disguised as a search result. The ClamAV detection and ML classifier further indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5892

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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 https://maypoin.ru/award?keyword=discuss+the+school+as+a+bureaucratic+organization+pdf
    • https://cdn.sqhk.co/jozunufap/cjhihhh/85212128795.pdf
    • https://pekixutub.weebly.com/uploads/1/3/1/4/131453658/nepipu.pdf
    • https://duvokazi.weebly.com/uploads/1/3/4/1/134108747/3722502.pdf
    • https://losasogewago.weebly.com/uploads/1/3/1/4/131437886/tadasaj.pdf
    • https://cdn.sqhk.co/wodaximewule/jgl5ifC/44688515215.pdf
    • https://cdn.sqhk.co/nozedimasav/ghywz0m/wetikoxalexotel.pdf
    • http://jiwimejikigigu.mywebcommunity.org/ansiedad_y_estres.pdf
    • https://jirogadipew.weebly.com/uploads/1/3/1/6/131606393/8003869.pdf
    • https://lugilabujenubo.weebly.com/uploads/1/3/4/3/134320616/229fee.pdf
    • http://rofogukiluvupu.mygamesonline.org/parks_pediatric_cardiology.pdf
    • http://wotidoteked.mywebcommunity.org/68357553405.pdf
    • https://cdn.sqhk.co/sileluzorupo/6hiKx01/89841097673.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/tenunud/56785439547.pdf
    • http://lodumojokexiku.onlinewebshop.net/kenwood_tm-v7a_programming_software.pdf
    • https://s3.amazonaws.com/sixolose/pajoxafijodeza.pdf
    • https://s3.amazonaws.com/putelekireza/sopulakebusonumirebilus.pdf
    • https://b1b0174c-961c-4936-87f6-765e1132391e.filesusr.com/ugd/6cf804_07506b4dcc6e441b9d77e93df06d589c.pdf?index=true
    • https://s3.amazonaws.com/vajefam/zanupufupalun.pdf
    • https://8717ace1-8174-44a1-9f98-e7cbf9e9ed94.filesusr.com/ugd/14e3be_ad3cd7bc525a479c86c04bf108688615.pdf?index=true
    • https://6b5d12f1-3bbc-48af-9ddb-5430d2fe15e7.filesusr.com/ugd/3bf302_b01cce78e72a43caac9ed37a7e521788.pdf?index=true
    • http://forezepolutaju.onlinewebshop.net/cmara_de_comercio_internacional_cci.pdf
    • https://944bcc21-9f45-42c2-9889-8cf837fa5d1c.filesusr.com/ugd/50f869_d3c8ac06b0214a88b38fc2bca15afce3.pdf?index=true
    • https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_2c53aa733aba4202ad24f57d14d12452.pdf?index=true
    • https://f72b89be-0fa6-41ee-8162-331329ef78ce.filesusr.com/ugd/95089d_7630865b5b1a4f69938d3ca6b6295377.pdf?index=true
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010368.bin
0a5c4e4562fe157fea1db32eb7db018a4e4633aecb75131f7a2f87364f9f8d6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10368 5488 bytes
font_01_sfnt_off00011602.bin
46470d4f174b977eb3334ce54ea2b3b0524c7f4407257898e36bd7e2d0202aad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11602 10736 bytes
font_02_sfnt_off00013abc.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13ABC 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.