Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f09168b6b83129…

MALICIOUS

PDF

45.3 KB Created: 2020-09-04 05:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 27f6040f191714c24e96c8e2cd1d5d60 SHA-1: 2a193daeaa13b485c2799ee96a76679f64408e97 SHA-256: 17f09168b6b83129343b9cc3a1a57bbf18cefdb6425013145249959c2a1e42f7
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same malicious URL. The PDF_SEO_LINK_FARM heuristic suggests this PDF is part of a larger link farm designed to attract traffic. The ML_NYX_PDF_MALICIOUS classifier strongly indicates malicious intent.

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://ttraff.club/wix?keyword=bollywood+new+movies+2018++filmywap
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/2e79a6_8c206acbfa8846fab9d3bfa8c21734fc.pdf
    • https://static.usrfiles.com/ugd/954c8b_de48c1c23333496cba1fc97a046cc1db.pdf
    • https://static.usrfiles.com/ugd/5926b4_165af77d68684ac8a13740ebd02397d8.pdf
    • https://static.usrfiles.com/ugd/838e7e_1a8c49e26951449bad89972fcd14eb89.pdf
    • https://cdn.shopify.com/s/files/1/0435/2960/1178/files/volume_of_cylinder_and_sphere_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0459/7517/5335/files/balistica_interna_externa_y_de_efectos.pdf
    • https://cdn.shopify.com/s/files/1/0440/8151/2613/files/nifigefezasafuwosumi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/nuvujogedur.pdf
    • https://static.usrfiles.com/ugd/e23fbb_99dbeb7bfddc494eba624e4ec0ff8ed2.pdf
    • https://static.usrfiles.com/ugd/b48b60_36ba5272657245bfbc31fa2ed4ac7b13.pdf
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/13456806531.pdf
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/zofolibaxigikuf.pdf
    • https://cdn.shopify.com/s/files/1/0438/7789/2251/files/95395995871.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/sawan_barse_tarse_dil_mp4_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.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_off000064af.bin
dd13279f1fd2296f9815183c45bdc8b8aa19da26622fb44318285bea9e098ba2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64AF 5620 bytes
font_01_sfnt_off000077d5.bin
8e7d2c5d99ed2d7d7998fdd189b94d2aa8bc115723ca26df5fa413b57ba49ecc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D5 9980 bytes
font_02_sfnt_off000099f7.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99F7 4324 bytes

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