Malicious PDF — malware analysis report

Static analysis result for SHA-256 0144f29afe8be514…

MALICIOUS

PDF

93.8 KB Created: 2021-03-29 00:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 175a1135ecbe22c8bc842b199ec82979 SHA-1: 9886c350b33590cf1c75aa27c4f7a4c45bbf22ce SHA-256: 0144f29afe8be5144fb0480bef67ae92367672d232612d811e826014c45ebb05
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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
  • 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.
  • 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://zajinet.ru/wix?keyword=gopro+hero+3+user%2527s+manual+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379856/normal_604682e64480b.pdfIn PDF document text
    • http://kelimap.mywebcommunity.org/geloloxulifunawoxituzeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484639/normal_60530c862cf48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413866/normal_6002dd3147b55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454543/normal_5fc5d98435387.pdfIn PDF document text
    • http://nunesop.scienceontheweb.net/tufet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412151/normal_5fc610d144e98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493579/normal_601b7ae8cb186.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mizeteb/povenoxuwovozobipajonu.pdfIn PDF document text
    • http://wizigipixe.atwebpages.com/pukobekemusokofadere.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/fulagedinejiduxi.pdfIn PDF document text
    • https://5d3a357a-25b2-4459-9cd8-210b235f7b36.filesusr.com/ugd/45e30f_7b45a828c70d486684701905a5b6f83b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rorives/87724753718.pdfIn PDF document text
    • http://nimanexobubibub.onlinewebshop.net/la_esposa_que_ora_dia_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/tesojegekogowowotutubis.pdfIn PDF document text
    • https://3e1d1bad-f645-4ebd-ac75-469e7ff7c972.filesusr.com/ugd/e745be_f65ecef528aa447e8d08cd24e2bed7f6.pdf?index=trueIn PDF document text
    • https://d046670e-94b8-4ea2-8efc-69fca9b502c9.filesusr.com/ugd/c0b427_d2eb39a14e1a44c195bbf2ea8540df41.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/schlotzsky_s_nutrition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/7414430491.pdfIn PDF document text
    • https://13ea8442-998f-4f14-ba3b-7f37e53a414c.filesusr.com/ugd/008a9f_e022a6466101499fa291ad7da20f7e10.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/gurofokemorim.pdfIn PDF document text
    • http://nifusotajezunur.atwebpages.com/jasizetujokefeburameka.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/45839899348.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/59544089184.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_392f1e7db37c449781dec566837d832b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/conformations_of_cyclohexane_newman.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12433 5276 bytes
SHA-256: be02d932896776b40b39f6a2a4b494c927e26e02ab097d488773ab268dccd7f1
font_01_sfnt_off00013611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13611 10832 bytes
SHA-256: 58e4b3710b7a6ea532d0ed620e1fbff934fe729d855a8544f34b77e08464b8e8
font_02_sfnt_off00015b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B19 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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