Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e37a25fa66c2d3c…

MALICIOUS

PDF

43.5 KB Created: 2020-08-09 23:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f80e2461813bf46929480a4ca055275 SHA-1: 7e7f7cdc9dc073fbbc9f408975392963df544663 SHA-256: 2e37a25fa66c2d3c1bfac8b1352b53044569c083a4f0d4cb1dc79a2774cb0e15
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=resonate+nancy+duarte+pdf+download', which is likely intended to redirect the user to a malicious site. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. No scripts were extracted from this sample.

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.com/pify?keyword=resonate+nancy+duarte+pdf+download
    • http://zevevari.modernretailcollective.store/uploads/1/3/1/4/131408027/bd0df6.pdf
    • http://files.waxgalleryechuca.com.au/uploads/1/3/1/4/131484328/929d7f5a7.pdf
    • http://pelip.utkcru.com/uploads/1/3/0/8/130874038/timolakofomu-zinubuxoniwisu-ruwexixo-tesip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/wasavafusefatemu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/67528705338.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/abecedario_para_imprimir_preescolar.pdf
    • https://cdn.shopify.com/s/files/1/0429/8083/5482/files/can_you_read_books_on_kindle.pdf
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/79738568260.pdf
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/vw_beetle_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/7640/9751/files/43197225717.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/ubiquiti_uap_ac_lr_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/75591358897.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/kivawatajesurebigoxojoba.pdf
    • https://cdn.shopify.com/s/files/1/0427/9461/4940/files/antibiotic_sensitivity_test_by_disc_diffusion_method.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eb1.bin
cb16c6fc8ae22642819e187ebaa8334361ff80586d91e1d27a6551ae46c412cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB1 5184 bytes
font_01_sfnt_off00007078.bin
30d52fbf631af56d84625d331a6984d7434fab3af85e5f81bb4f8ff881017239		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7078 10148 bytes
font_02_sfnt_off00009336.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9336 4324 bytes

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