Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa67632c476c137…

MALICIOUS

PDF

83.8 KB Created: 2021-06-28 21:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 959b3df758ba02a8f87ad314c48844bc SHA-1: 94327a35047d175196af636f40148ae3ba1e5ebb SHA-256: 5fa67632c476c137a902f6f03be161ac625336f4c603a434c273e09bc3fe7617
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. The presence of embedded URLs, some of which point to potentially compromised websites hosting PDF files, suggests a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are strong indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 4

  • 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
  • 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://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075bcdc23525---gifubaxot.pdf
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/82eb82a28f1487f78a0561157bb3b33f/53587450972.pdf
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/16ghmq83nvahkrknfh0hd1amt0/22542055489.pdf
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad320f087b3---86384626378.pdf
    • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/16071e667a0fe8---gokeluwapew.pdf
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16083399688441---rojiwugigorekuwusalo.pdf
    • http://intergeored.com/upload/File/tobalajufegagemexanumuxe.pdf
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160a6dbc1e5ac0---figaxizotepumasav.pdf
    • https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/2f09f3d75da1c74818b83d78ac27ff99/41136456668.pdf
    • http://jmestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/63117692847.pdf
    • https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/4c74f5dabd1cb78590c1ca42a7a17606/50762721024.pdf
    • https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/k6vlmsk3fa0n095l06n4db3pfm/11768222419.pdf
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa627c0c50---pakujik.pdf
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae049a5fea0---bopujo.pdf
    • https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/d48c67be7a86236e4d9131f5da7aeb35/jugerowajewifuvusan.pdf
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/6e2715fb2d07f6fad16d445c72db2463/dililasirevapoguxa.pdf
    • http://bigxra.com/uploadfile/file/2021062322461073499.pdf
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/5cdcc908f49d6d57b56081b776b0a87f/revisejasotatikolo.pdf
    • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3185c9e8a---tomerofusilarepoxudefe.pdf
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fe5ca06d41---wanarupepad.pdf
    • http://zonweringbelgie.nl/ckfinder/userfiles/files/rajevedowuto.pdf
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c75a907a6a9---goxafam.pdf
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609f738c51eeb---90119046642.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+accept+invites+on+minecraft+ps4
    • 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_off0000e457.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xE457 16792 bytes
font_01_sfnt_off0000fc69.bin
a71fab0eaf233be5c76393ec72a6b712748939f561d39aa703a678209cbe0889
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC69 17196 bytes
font_02_sfnt_off000128da.bin
981a0e0677b9eac7c70518af7af83b1fbf7fdeec7b60a8c684436ef6b2f3dc8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x128DA 10816 bytes