Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d5ae09b9fb0541…

MALICIOUS

PDF

158.9 KB Created: 2021-03-15 21:13:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f06ebaa3e04400d89252383b1567fd4b SHA-1: 94be10d48720f5323693ab3aacb067a0275ec39a SHA-256: 11d5ae09b9fb0541656aabb8e55752c464731fc152862accf6b7c2ebb491a350
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9992

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bologen.ru/strik?utm_term=resumen+de+la+obra+metamorfosis+de+ovidio PDF link annotation
    • https://cdn.sqhk.co/soredepel/0ijd76q/33298764429.pdfIn PDF document text
    • http://serdyukov.pro/rowagirajesuv3heo.pdfIn PDF document text
    • http://sunmarkt.ru/how_to_increase_volume_on_nortel_phone0hc5n.pdfIn PDF document text
    • http://tehnotop.space/jokipamekezxzfqr.pdfIn PDF document text
    • http://begemotiks.fun/xedifozatimaviz0.pdfIn PDF document text
    • https://cdn.sqhk.co/kofatuziwu/UQkjeIv/84193446508.pdfIn PDF document text
    • https://cdn.sqhk.co/rixakowu/dhfjivK/woodsmith_magazine_login.pdfIn PDF document text
    • https://cdn.sqhk.co/saligoliti/c95hhif/download_win_x_launcher_no_ads.pdfIn PDF document text
    • http://nukels.xyz/jotosasomi819ur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_c7d6c40d1f5044ce8b8ff31343a16499.pdf?index=trueIn PDF document text
    • https://696f1bd8-06c3-47a7-a8f7-e83e17ec8d18.filesusr.com/ugd/5ad03d_dcd1898376c0451ca2744c5de6c1b9a5.pdf?index=trueIn PDF document text
    • https://dbba0f06-1911-40f0-8c80-a2638c7f81cc.filesusr.com/ugd/b13fd1_d24aeb63e37c4668b40ec262e9b76a5c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kisagoz/nuzutenuvepetolor.pdfIn PDF document text
    • https://4647adb0-9c01-46a1-aef1-4380d5873f13.filesusr.com/ugd/edb4a7_1d0a34362ace4b6f86fd36581e567476.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab4a6858-5af4-401f-9229-8ac7e5bfa985/the_power_of_love_lyrics_hillsong.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b21fa5b-9adf-4b23-bbb8-942f709b813f/vutemugezewofelefu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/672fbefd-5f27-44e2-a2bd-39a0b98e898d/71836718625.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01135a92-83ee-4234-b0bf-61ed33237c16/bergeys_breadbasket_facebook.pdfIn PDF document text
    • https://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_dc12a4860a184c77b1ff91d33122bf9c.pdf?index=trueIn PDF document text
    • http://rawegutidum.onlinewebshop.net/padutigaredokoduwegonilab.pdfIn PDF document text
    • http://suvalomimo.atwebpages.com/morunagegezugawolapogig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbe280aa-8575-4fef-91a6-c1a3f5ecdeb2/99785851186.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/blinking_cursor_html_form.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00022e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22E94 5260 bytes
SHA-256: eac52fe35d8d74f09fa8dda91c8fd86fb849c371f543805244209249783307d8
font_01_sfnt_off00024063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24063 14892 bytes
SHA-256: cbb38fe4fd8bd437d6e46a9d4d4cebdec51bf16e20c3646d01cbd013fc2b47a8

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