Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d969ea00854e6ca…

MALICIOUS

PDF

66.6 KB Created: 2021-03-04 21:54:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 744715f4012223d7b291a8ac77816f34 SHA-1: c1252277447764a13c7c668de280f727f7170bca SHA-256: 0d969ea00854e6ca0987e28eba8333cba1141b568906b4d903d0086fe954436b
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, with one prominent URL pointing to 'xezojetit.ru'. This suggests a malicious intent to redirect users to potentially harmful content or phishing sites. The ML classifier and ClamAV detection further support the malicious nature of this PDF. No scripts were extracted, but the presence of numerous external links indicates a likely attempt to lead the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9691

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
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://xezojetit.ru/aws?utm_term=how+to+reset+imax+b6+charger
    • https://static.s123-cdn-static.com/uploads/4375908/normal_60064fcd42a08.pdf
    • https://static.s123-cdn-static.com/uploads/4418565/normal_5fdff74cd0859.pdf
    • https://static.s123-cdn-static.com/uploads/4416654/normal_5ffca7bf2c45d.pdf
    • https://cdn-cms.f-static.net/uploads/4420910/normal_602f20d84aeb0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/018fd767-5d7d-4202-8983-d69820e80df6/83744516755.pdf
    • https://04934832-22f3-474e-96de-b9d593e92251.filesusr.com/ugd/f390e7_02afee0278884138828b00a6de431125.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b872af8f-7b0e-45c1-80c5-777ee50bcde9/zilitewitoripibewozogew.pdf
    • https://3568ea06-17fa-4787-91ae-86b9aa918cbd.filesusr.com/ugd/8ade13_b438ccf451a74a38971de0b2b502280e.pdf?index=true
    • https://s3.amazonaws.com/sinadi/arctic_animals_worksheets_1st_grade.pdf
    • https://uploads.strikinglycdn.com/files/0dda69e2-c5dc-4952-9e05-ba7b620ef662/donilabinubedir.pdf
    • https://uploads.strikinglycdn.com/files/a94d6df4-ea08-45ac-bbc4-5579f75eb26d/61389624270.pdf
    • https://uploads.strikinglycdn.com/files/cb2b59ac-2c31-4620-bfa1-56af641cccc3/1855286450.pdf
    • https://920f4c01-5fd6-4c40-8b27-b99972fecb60.filesusr.com/ugd/d63aaf_385a86ca1ef946cbb3c460c3570df0b9.pdf?index=true
    • https://b20aee1f-b1b7-4e4e-be5e-d884e4ece670.filesusr.com/ugd/10e3af_1d696ad52011442e8f2f9be51e46ee49.pdf?index=true
    • https://8964868a-aef6-4da0-9a9b-29de7c28e0c5.filesusr.com/ugd/b910ae_9e2930306eb74f559ccb45bb21f36e12.pdf?index=true
    • https://uploads.strikinglycdn.com/files/70df292a-317f-41d7-b548-11d5e2ec4d96/origins_of_the_modern_world.pdf
    • https://s3.amazonaws.com/sutawowirosuvuv/nasavozogixuzisuvinon.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c775.bin
f24adb78a3d76b7a306be40ea975bb94f0f887d8c60fb94516de6b784eae4b26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC775 5280 bytes
font_01_sfnt_off0000d97b.bin
0b6142f254708239ae2512dc7d1f803da0d8c0025a5040ff68dad9feac747c7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD97B 9832 bytes
font_02_sfnt_off0000fb30.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB30 4324 bytes

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