Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a17a4d6d1e891d2…

MALICIOUS

PDF

48.0 KB Created: 2020-09-03 00:58:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a718fc1b126f89444d2f5af5d77ae31c SHA-1: c021a7a8b00ead1e8c319899dbd4458293b9329c SHA-256: 6a17a4d6d1e891d2e5c72e872248351d7c2b046a03e979b88187716ddc8c8117
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains keywords related to '3ds emulator android pokemon x' and the malicious URL, indicating a lure. The presence of numerous links to PDFs hosted on Shopify, some of which are benign, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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/wix?keyword=3ds+emulator+android+pokemon+x
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0432/9196/7652/files/pakaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7957/3408/files/andreas_moritz_the_amazing_liver_and_gallbladder_flush.pdf
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/autodesk_2019_xforce_keygen.pdf
    • https://cdn.shopify.com/s/files/1/0433/1575/7214/files/ahmet_mit_sis_ve_gece.pdf
    • https://static.usrfiles.com/ugd/277b62_b058d3dbee4b44038d51882dc6e82211.pdf
    • https://static.usrfiles.com/ugd/d43733_f48d588277e64471a77b56e57a0eaf08.pdf
    • https://static.usrfiles.com/ugd/0d2908_1698b40b3da34dbfb6fb736e24cc9ff4.pdf
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/dogebu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/geviguz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/autocad_course_file.pdf
    • https://cdn.shopify.com/s/files/1/0430/0813/1233/files/arteritis_kranial_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/gororasabu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3130/5112/files/agent_vinod_movie_in_hd.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/revit_tutorials.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/kinabegaxomiwuv.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000628f.bin
d27072a9d734eee958fd22e3e03094bc38317a2c2154033cb4c5e7039bf631ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x628F 3840 bytes
font_01_sfnt_off0000703d.bin
2ea122e0fb9526950c112ba44fbb22c2929bc29ef48f9dcfcde39462f13aedfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x703D 5188 bytes
font_02_sfnt_off000081c3.bin
7beb656642064b573765985176f044eeb2812df6b5f38a2e2a8eee7035159cc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81C3 10156 bytes
font_03_sfnt_off0000a487.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA487 4324 bytes

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