Malicious PDF — malware analysis report

Static analysis result for SHA-256 349f8351a911e02f…

MALICIOUS

PDF

41.2 KB Created: 2020-09-06 20:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d3bf20d9e3f9ee08a5b44ed72d5976c SHA-1: 66a9cda62513f024b9604e749d504fb3cc6aeeb7 SHA-256: 349f8351a911e02f0d0812664edb759ba26868b94d9b1e66a782a547c48b0747
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link that redirects to a malicious URL, disguised with a keyword related to a government certificate. The document body, though partially corrupted, contains text referencing 'Jeevan pramaan certificate form' and the malicious URL. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of a link to known malicious infrastructure, and 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a phishing or scam attempt.

Heuristics 3

  • 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.
  • 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=jeevan+pramaan+certificate+form
    • https://cdn.shopify.com/s/files/1/0430/9146/0247/files/future_tenses_exercises_mixed_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0440/0149/3142/files/transformers_g1_all_autobots.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0309/files/american_pie_8_direct.pdf
    • https://cdn.shopify.com/s/files/1/0463/7717/3147/files/acetilcisteina_pediatrico_bula.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4665/files/international_calling_codes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/damegadunuje.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5676/files/geometry_translation_worksheets_grade_5.pdf
    • https://static.usrfiles.com/ugd/74c34a_d0d8d58ebb4141ca8aff4f1bb5ef1041.pdf
    • https://static.usrfiles.com/ugd/f8de3e_c5ec058854a54c5185684eb7fd7464b6.pdf
    • https://static.usrfiles.com/ugd/f91cf1_024eae8e5b8e4d4fb8fc7b29aaee92a2.pdf
    • https://static.usrfiles.com/ugd/6f9b04_1b6aafb1c65a45388a2a74f1a63ffaca.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006452.bin
1278515a3fe4c5f89cb0ac93073e6d1e98b9d643f1390612783b188e714e5a00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6452 5000 bytes
font_01_sfnt_off00007551.bin
adaaa9413231f7a31f8aca109eddb7766ca30b53da3deaa7d2656c6642ee41c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7551 10124 bytes

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