Malicious PDF — malware analysis report

Static analysis result for SHA-256 2afaf17fe27714be…

MALICIOUS

PDF

76.9 KB Created: 2021-03-22 09:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 62d27dd4870df750479ba49b6e2a4cbc SHA-1: cdd46189f8c30c5a6a344bbae1a3858009863030 SHA-256: 2afaf17fe27714be3b803efa3b63fea93bae179e0f3040e8714b976037fb78c5
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a large number of external links, many of which are SEO-optimized and point to redirectors, indicating a link farm or phishing attempt. The primary URL, 'https://fokemale.ru/wix?keyword=linksys+ea6500+reset+password', suggests a lure related to password resets. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://fokemale.ru/wix?keyword=linksys+ea6500+reset+password PDF link annotation
    • https://mabunamu.weebly.com/uploads/1/3/4/9/134902385/repikoteja_pafalovizira_koxegezokogar_nudesopufuwe.pdfIn PDF document text
    • https://bobefadapuxat.weebly.com/uploads/1/3/4/8/134858353/kemem.pdfIn PDF document text
    • http://pagavopalubutu.scienceontheweb.net/xorinuzudunirapikadi.pdfIn PDF document text
    • http://save50it.info/nikon_p-tactical_.223_3x32_matte_bdci1bi4.pdfIn PDF document text
    • http://meinekarten.best/1020800677gi27v.pdfIn PDF document text
    • http://shop-profildoors.ru/video_player_download_for_windows_vistamunw3.pdfIn PDF document text
    • https://susutabum.weebly.com/uploads/1/3/4/4/134464128/zufezesixokid_jozibasorul_duxeve.pdfIn PDF document text
    • http://ita-bio.space/1613689725830a0p.pdfIn PDF document text
    • http://rent-nout.site/47285414348903ju.pdfIn PDF document text
    • https://kobalogowitat.weebly.com/uploads/1/3/0/7/130776452/666554eb5fb.pdfIn PDF document text
    • https://livesagu.weebly.com/uploads/1/3/1/4/131437401/kotul.pdfIn PDF document text
    • https://dilukali.weebly.com/uploads/1/3/4/5/134584555/3859324.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jawusawar/product_rule_for_radicals_worksheet.pdfIn PDF document text
    • http://salajire.onlinewebshop.net/sapegukemiginutufakot.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/how_heavy_is_a_55_inch_samsung_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/70367500570.pdfIn PDF document text
    • https://s3.amazonaws.com/popilo/birmingham_new_street_platform_finder.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/47788882697.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/kubeduxufenuze.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/statistical_methods_spatial_data_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/tetawur.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBD 5540 bytes
SHA-256: e5fb84e32efcecd47daa2c897f9166d9ccb5c6e0cc8e679f1cf5c0dd2b5e9d9d
font_01_sfnt_off000101c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C0 10696 bytes
SHA-256: 7a7786cb2a083fc5114216ebc49d268b5134305ba45a95fc6c7776eba6a0b7d1

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