Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10f21bef960d569…

MALICIOUS

PDF

57.6 KB Created: 2020-10-29 12:09:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffa0d0cdf62463b2bc89e503a07381f8 SHA-1: 1d57b87c27623cd59c76fe9b6f2d773c91d98ef1 SHA-256: e10f21bef960d569b13ed88bed03ad87ed748120677abdf3c05790f9ac2a6dcd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified as a link farm, directing users to external PDF files. One of these links, https://gettraff.ru/aws?keyword=thanksgiving+unit+rate+activity, is flagged as a known malicious redirector. This suggests the document's primary purpose is to drive traffic to malicious or SEO-manipulated content, potentially as a distribution vector for further threats.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/aws?keyword=thanksgiving+unit+rate+activity
    • https://memarexegota.weebly.com/uploads/1/3/4/3/134366516/jofikojejorivunixi.pdf
    • https://cdn-cms.f-static.net/uploads/4367961/normal_5f8c1fc250998.pdf
    • https://cdn-cms.f-static.net/uploads/4370317/normal_5f8b1105e02fe.pdf
    • https://cdn-cms.f-static.net/uploads/4392195/normal_5f9641124e23a.pdf
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vudodapazepipux_kijemomebegax_velagokotukif.pdf
    • https://cdn-cms.f-static.net/uploads/4414678/normal_5f969dededda4.pdf
    • https://cdn-cms.f-static.net/uploads/4367964/normal_5f970fa3a9351.pdf
    • https://cdn-cms.f-static.net/uploads/4410217/normal_5f956ad1f2128.pdf
    • https://zizuralozirufu.weebly.com/uploads/1/3/1/4/131483034/xujafavajojovex.pdf
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/vukevixirasijan.pdf
    • https://cdn-cms.f-static.net/uploads/4375521/normal_5f994937d381a.pdf
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/tuxoguzasidi.pdf
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/panofufakipaluk-minikawugixogov.pdf
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/xevaraso_tewabopi.pdf
    • https://palozemoxapido.weebly.com/uploads/1/3/4/3/134366311/a1151c10763.pdf
    • https://sositero.weebly.com/uploads/1/3/4/3/134389363/kejejiziteleba-radijad.pdf
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/9591268.pdf
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f86f45c5ea17.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zetare/45909031561.pdf
    • https://s3.amazonaws.com/fejififimaketo/best_self_alliance.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007880.bin
9e44da48cef3e1c1fd20751e53edbfd90432cf7c4760fef84e4fa78563b4ff9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7880 3216 bytes
font_01_sfnt_off00008413.bin
54a54b71e2db34085b7907b1f10c252522e5e089450244900e3a68663ad5dd3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8413 5204 bytes
font_02_sfnt_off000095d8.bin
59219a86e59b85e60266cf7b63d0c9968f47763ad229d3854ffd672abb467a11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D8 13400 bytes
font_03_sfnt_off0000c11c.bin
28bbcfb89e50b78869817a6492b939f8cea63d4996eae5f71f0b2ecaf235c3dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC11C 16556 bytes

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