Malicious PDF — malware analysis report

Static analysis result for SHA-256 935eebea484293aa…

MALICIOUS

PDF

361.8 KB Created: 2022-05-27 07:36:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: f187fa1a90affdb7b71f46c1d6077610 SHA-1: 886dca487a0e325c3b2af2cb101ff96791621ed1 SHA-256: 935eebea484293aa21fcbf9eca18b56612f44c10acde7820f23f6fbbe5f325c2
104 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF contains embedded JavaScript and external URIs, flagged by heuristics as malicious. ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojanized document. The primary external URI points to a suspicious domain, likely part of the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://podar.co.za/XSRYdR1H?utm_term=architecture+recommendation+letter+pdf+free+printable+sample+form
    • https://vukezozonobobex.weebly.com/uploads/1/3/1/3/131383599/f4a916a0.pdf
    • https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/sivewejirupodepilujep.pdf
    • https://bivigute.weebly.com/uploads/1/4/1/5/141510037/legawemigaxomof.pdf
    • https://zosekofafome.weebly.com/uploads/1/3/4/5/134595162/4487844.pdf
    • https://zematewisa.weebly.com/uploads/1/3/4/8/134897668/7ae91fac2c4dd8b.pdf
    • https://xidokuwu.weebly.com/uploads/1/3/1/4/131453793/683be2fcc397b0a.pdf
    • http://private-dev.cliczone.fr/upload/userfiles/files/93765102011.pdf
    • https://kepubewi.weebly.com/uploads/1/3/6/0/136095452/8306027.pdf
    • https://vozilasavozacem.rs/files/fowomajozebutogavadi.pdf
    • https://xegoguvaposa.weebly.com/uploads/1/3/4/6/134677344/6955185.pdf
    • http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/12559234875.pdf
    • https://tedozumezefa.weebly.com/uploads/1/3/2/7/132740670/740d39988c51.pdf
    • https://bemitobiz.weebly.com/uploads/1/3/4/6/134681698/42c1a41ef.pdf
    • https://gipenozup.weebly.com/uploads/1/3/1/0/131070487/2903890.pdf
    • http://muzycznescyzoryki.pl/userfiles/file/56471655193.pdf
    • https://sofofiwolasaxu.weebly.com/uploads/1/3/1/8/131856039/sizivilomibitofi.pdf
    • https://xofebigile.weebly.com/uploads/1/3/0/7/130739964/katovikojumagut.pdf
    • https://rinuxusopav.weebly.com/uploads/1/3/4/6/134679155/77c2f.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053a99.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x53A99 16792 bytes
font_01_sfnt_off000552ab.bin
f709174deec29a5cc6fabdacc3823d5fbb0652b4b1a140ae5eeab45ddc5380d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x552AB 17064 bytes
font_02_sfnt_off00057f0b.bin
0a09fd4f4961b9224f57cc857461d9287f00429be68e6877dd2a5dd7465ba3aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x57F0B 11108 bytes