Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6d7cfd98e7ebdc…

MALICIOUS

PDF

87.3 KB Created: 2021-03-22 06:20:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f1b71b7e8d530e2cee07c2e9d3df622 SHA-1: 3a32e851659bb2e3993c9b864da0f068f3c83c19 SHA-256: bf6d7cfd98e7ebdc2959a8fd5b1cde3c458069433c313d16637689a97989076d
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, with the primary URL being a lure for 'positive effects of globalization in the philippines pdf'. This technique is commonly used to direct users to malicious websites for phishing or to download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/award?keyword=positive+effects+of+globalization+in+the+philippines+pdf
    • http://remontnatali.ru/41048329602eg83d.pdf
    • http://detonicinitalia.website/6622962239115mhn.pdf
    • https://cdn.sqhk.co/navimoxa/hPm1Yhc/wormate_io_zoom_hack_download.pdf
    • https://cdn.sqhk.co/pinofizulag/jihjzUb/43971669744.pdf
    • http://j3vnci4.xyz/40470945790xm3ix.pdf
    • https://cdn.sqhk.co/posiraki/hhwKihy/pabis.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://f07eb630-23ff-4298-a1df-d7940f1ba2dc.filesusr.com/ugd/097a5b_ad165c284c504126acdbcafc65fec65d.pdf?index=true
    • https://s3.amazonaws.com/wujapu/xemesomi.pdf
    • https://ae26bae5-b1f3-4fb2-a0ba-5d2f2d23988c.filesusr.com/ugd/aec2ea_a5ad802ea41244efb7a448c6a34897f0.pdf?index=true
    • https://8488b7ac-84bc-45ae-88ed-26841205fc59.filesusr.com/ugd/7cda3c_0bce7360aef949609cd0419b621a6a62.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d260a2c6-743f-493b-8bb5-97b381568542/what_is_curriculum_evaluation_essay.pdf
    • https://849bdae7-2456-4570-9e2a-fc769e7e49ad.filesusr.com/ugd/2074c9_f5c152c4c191475388f49aa2b2187c08.pdf?index=true
    • https://s3.amazonaws.com/wovisak/marox.pdf
    • https://78e27e65-9996-4239-a63d-7a21722db537.filesusr.com/ugd/03f576_54ee1ebd4e3840c59eef4d858643479b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/80604c87-391b-4898-89e3-446d3665e60d/65111894176.pdf
    • https://uploads.strikinglycdn.com/files/5851aba9-cecd-4b25-ad69-3f6cbbcd9d14/sexual_reproduction_vs_asexual_reproduction_venn_diagram.pdf
    • https://s3.amazonaws.com/duzexefemosaxe/inclusive_growth_report_oecd.pdf
    • https://e7ba4f66-d023-404d-a355-a5b98970f127.filesusr.com/ugd/cac9e4_2ab14dd62b5841a0b32c47a1d4495fc3.pdf?index=true
    • https://4a39c6c9-989b-4d11-b2d8-cc0becc7f193.filesusr.com/ugd/ef0078_feb3c67a467c46b481ca10a7563092db.pdf?index=true
    • https://8dfd47f4-e591-4377-92a3-bdbf91d41e5a.filesusr.com/ugd/a58b01_558d37f883a2488f9932d9d38c8abe1b.pdf?index=true
    • https://b32521b7-32ca-447e-9967-d27d0dce683d.filesusr.com/ugd/800b88_2e693fd40d764d22bbd61d505a75e6ea.pdf?index=true
    • https://uploads.strikinglycdn.com/files/918a8dc7-9d37-4d87-b50b-48600fb619d0/what_book_is_13_reasons_why_based_on.pdf
    • https://s3.amazonaws.com/nimuwet/fish_lake_maple_grove_mn_fishing_report.pdf
    • https://99470c7d-c692-4648-a7b8-36ea19db2883.filesusr.com/ugd/ab059d_a4b628c971244ad09ab013a76f1b311e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/19afeb0a-761f-4318-814a-6b000642498b/49902551583.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff5c.bin
ec7a9fa5d79b90fc7db3bb3049a3bdff6376ae35c5da4aace7f0cf72f9b3c702		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5C 5572 bytes
font_01_sfnt_off00011264.bin
d8ff5d9c202b092884a1987740902cbe9f582e8f12c0addbeea24eb7df8cc5e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11264 12076 bytes
font_02_sfnt_off000139be.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139BE 16204 bytes

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