Malicious PDF — malware analysis report

Static analysis result for SHA-256 0266cc16043109d2…

MALICIOUS

PDF

41.0 KB Created: 2020-08-14 17:44:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3fa0c2bef73a72d89c474dc36a58323 SHA-1: 48edd7e16e6f4d1215832181fdeaa4c16b835b1f SHA-256: 0266cc16043109d2b97361990c3e3b3f91c25dc4c052b0b4f4d9f77146df2d9e
162 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to potentially malicious redirector infrastructure, specifically 'ttraff.com'. The document body also contains the same malicious URL, suggesting an attempt to trick users into downloading or accessing malicious content. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.com/pify?keyword=autocad+plant+3d+catalog
    • http://puseniki.superiortherapyconnections.com/uploads/1/3/1/6/131637881/tetilukarugamomodaku.pdf
    • http://vigejaga.charhendricks.com/uploads/1/3/1/3/131398560/96e653188.pdf
    • http://files.janelincove.com/uploads/1/3/2/7/132710783/95cbc1.pdf
    • http://files.mesmanfarm.com/uploads/1/3/1/4/131453294/fapujujinap.pdf
    • http://vepivel.priscillecanivet.com/uploads/1/3/1/8/131857054/ed5e15.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/oregon_road_report_i_84.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/modle_d_attestation_de_fin_de_stage.pdf
    • https://cdn.shopify.com/s/files/1/0432/6211/6008/files/fuxix.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/bible_quiz_genesis.pdf
    • https://cdn.shopify.com/s/files/1/0429/5353/9747/files/docsend_to.pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7207/files/gazuvivirares.pdf
    • https://cdn.shopify.com/s/files/1/0430/3385/4101/files/sort_list_of_lists_python.pdf
    • https://cdn.shopify.com/s/files/1/0433/6300/8664/files/tegumulasukeref.pdf
    • https://cdn.shopify.com/s/files/1/0428/3616/4774/files/ninil.pdf
    • https://cdn.shopify.com/s/files/1/0433/8666/7158/files/tevituxozi.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054e1.bin
812d058f8c6245da0549623f06085c4552ddb7a4aae809b0bc15ed5ce9794f6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54E1 4836 bytes
font_01_sfnt_off0000655b.bin
2f290951133a538029d791d25c901425b7b83de7173da300e25e0c5a891ca2b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x655B 10572 bytes
font_02_sfnt_off0000893c.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x893C 4324 bytes

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