Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ee6198d65e7448e…

MALICIOUS

PDF

75.1 KB Created: 2021-01-06 03:37:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6e08fafd0ff386a62d2718e3ffa8676d SHA-1: 61ca61eb7234eb02d5cffbd27d62e33d7b977060 SHA-256: 2ee6198d65e7448eebeaf22d522d287903d4ca5b173b6a9a313c61c650e48c75
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded links, many of which point to external PDF files hosted on various platforms. The presence of a "PDF_SEO_LINK_FARM" heuristic and the lure of "Adobe illustrator cs6 crack dll file" suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malicious content or exploiting vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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://trafffe.ru/aws?utm_term=adobe+illustrator+cs6+crack+dll+file PDF link annotation
    • https://cdn.sqhk.co/sezivalaw/JzFjejc/first_aid_training_videos_free.pdfIn PDF document text
    • https://faboduvo.weebly.com/uploads/1/3/5/3/135343103/rofolov_luzovaw_tumerotepu.pdfIn PDF document text
    • https://wuluvaxezipow.weebly.com/uploads/1/3/5/3/135393263/d0d5f7bb8.pdfIn PDF document text
    • https://wefejakero.weebly.com/uploads/1/3/0/8/130814310/2888039.pdfIn PDF document text
    • https://cdn.sqhk.co/bafebolabefo/A8Zofhe/44733361872.pdfIn PDF document text
    • https://cdn.sqhk.co/rojisixel/ZmoQuhe/21071217938.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://uploads.strikinglycdn.com/files/100031b7-491a-4487-8872-7dc1949f35a8/42715176800.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2877d92a-32d5-4950-aeca-bcd2ccc306ba/judoxezefarofinabolek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6423c9f-7ee8-4df6-a096-b16faae9c233/sinefoxub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf57655f-fe53-41d7-a83a-1aaa3c9e2481/honda_hs1132_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30b794f6-9cbf-4295-af97-66f4f56601bc/red_ball_4_volume_2_crazy_games.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d61c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61C 5364 bytes
SHA-256: b8dd6c691fd68816e81abe405fde750fed23e4c745eb169ce37f25552b8a18c2
font_01_sfnt_off0000e85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85D 5848 bytes
SHA-256: 33d18eb0ce5c3114ce071cde40ae6a7e5577d84d268543abb5b209a54ddb5565
font_02_sfnt_off0000f72c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72C 11976 bytes
SHA-256: cbfaba68e7753e4480f5cc2830ba7bba68d2b9199addef03b662d4f09fed7e29

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