Malicious PDF — malware analysis report

Static analysis result for SHA-256 17bfc0de843f9ffc…

MALICIOUS

PDF

45.6 KB Created: 2020-08-10 13:42:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 067ff7f74c4a2c94a76ff0957f2e0b8f SHA-1: 5776467cc5c1fc3510a152f472eeb17dc92bf381 SHA-256: 17bfc0de843f9ffca519b88635036fc1e92968433f08f161a9a3647d8eecb030
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary redirector URL, 'https://ttraff.cc/pify?keyword=principle+of+mathematical+induction+class+11+ncert+pdf', is flagged as malicious. This suggests the document is part of a phishing or content-scraping scheme to drive traffic to malicious sites.

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.cc/pify?keyword=principle+of+mathematical+induction+class+11+ncert+pdf
    • http://lobaw.marc-e.com/uploads/1/3/2/7/132740214/c33efa56309c.pdf
    • http://files.happybenzene.com/uploads/1/3/1/4/131437243/5e589654ff.pdf
    • http://suxabov.yakimatietonirrigation.com/uploads/1/3/2/6/132681946/50f81dfc.pdf
    • http://dupimekoj.callabeautyboutique.com/uploads/1/3/2/6/132695569/tasurizego_garow_mitigugawopoxe_gazana.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0439/3956/1630/files/24041819106.pdf
    • https://cdn.shopify.com/s/files/1/0428/6133/0591/files/genam.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/go_keyboard_emoji_plugin.pdf
    • https://cdn.shopify.com/s/files/1/0440/5228/3542/files/insulin_glargine_mechanism_of_action.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/9255680134.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/zufidotonakasu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/3720982702.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/lean_six_sigma_black_belt_body_of_knowledge.pdf
    • https://cdn.shopify.com/s/files/1/0432/1784/6432/files/phototropism_and_geotropism.pdf
    • https://cdn.shopify.com/s/files/1/0435/1678/8890/files/attracting_and_retaining_talented_employees.pdf
    • https://cdn.shopify.com/s/files/1/0439/7996/4574/files/69524585417.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_off00005ffe.bin
cd38e9efa6ccaec16b01158b8298af9ba6baf33f7c811aa1fdf38887abb1983a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFE 5448 bytes
font_01_sfnt_off0000724c.bin
ffe098d7c047329fe6837cf01140007dc7ccb5cf7be8bb4dbf355a28ba387176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x724C 9664 bytes
font_02_sfnt_off000093a8.bin
f7f944af48a1f29a4fc81369acbb7667dc0c0bb312d09d0e658341ed730dbf86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93A8 16144 bytes

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