PDF malware analysis — malicious · d1e3e5e5056a2673

MALICIOUS

PDF

72.2 KB Created: 2021-03-09 00:45:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: bc3b22fb16b4fe78896270ba6d9072a5 SHA-1: c100b959719f74fb8bc8e0f34318fec14d200266 SHA-256: d1e3e5e5056a26737dcc57292b93f5ee7dbe61bb45c7875e2cc7d839e8d542fc

186 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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.
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://jumiwimov.ru/award?keyword=jurnal+daun+binahong+pdf PDF link annotation
- https://cdn.sqhk.co/mosugukasiba/MGhihij/48678953551.pdfIn PDF document text
- https://cdn.sqhk.co/buzulexoxuve/id2ycji/defense_zone_original_level_8.pdfIn PDF document text
- https://latifaxegorur.weebly.com/uploads/1/3/5/4/135400737/riwunefazokan.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4480149/normal_5fe12da899530.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4468814/normal_6037ecd4c23fb.pdfIn PDF document text
- https://bepagiji.weebly.com/uploads/1/3/4/3/134352373/8476175.pdfIn PDF document text
- https://cdn.sqhk.co/lagolipumepi/rid7DA9/6974398995.pdfIn PDF document text
- https://cdn.sqhk.co/xenivoronizu/eNBhgif/drawing_tutorials_for_beginners_download.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366018/normal_603dc1888522c.pdfIn PDF document text
- https://zobimodajozo.weebly.com/uploads/1/3/4/3/134340865/nanazevoneke.pdfIn PDF document text
- https://cdn.sqhk.co/wafozozutit/dhcjigg/2nd_grade_activity_worksheets.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://uploads.strikinglycdn.com/files/3ce764b7-fd7f-403b-bf44-c662b6ab793e/taxexalesikanimowe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3d5b1e5-39d8-4579-8071-62ddb71ed49b/kativomajapodugejo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/83a1ff60-e587-45e8-8ec7-d5c1cb8ef296/what_to_invest_in_2021_for_beginners.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c0c3b710-5bca-464a-8da3-a1f0e6765fd4/bushnell_telescope_voyager_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ecd48dc3-8be1-4833-bf4f-354000f9ddb7/38447268843.pdfIn PDF document text
- https://s3.amazonaws.com/tezude/24160913776.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a52e6a6a-5e93-445b-b001-cce2ebd4f73a/how_to_pair_big_blue_party_speaker.pdfIn PDF document text
- https://s3.amazonaws.com/gogonof/michael_porter_value_chain_template.pdfIn PDF document text
- https://s3.amazonaws.com/radubozufiwo/remembrance_day_poppy_template.pdfIn PDF document text
- https://s3.amazonaws.com/putelekireza/how_to_pair_my_3m_worktunes.pdfIn PDF document text
- https://s3.amazonaws.com/bitizopovopaso/16361174568.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93bf17f0-eba6-4a51-ad97-46f0c1b5ebe8/machiavelli_the_prince_summary_sparknotes.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d13f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD13F	4940 bytes
SHA-256: `ccf58f3f7426ce89360426011a963979639f36f14803c0d6bad5fa37a4bd5a11`
`font_01_sfnt_off0000e1e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1E1	10348 bytes
SHA-256: `5ae1751f38a923c1ae69b34e2cf6640af22f19dff920475f9b997714536e865e`
`font_02_sfnt_off00010558.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10558	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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