Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6df4741515968f…

MALICIOUS

PDF

42.5 KB Created: 2020-08-19 09:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6439d19b592846ee338c3af9f76110d9 SHA-1: a68f081b7457e645552a086fcdead1578282fc0d SHA-256: 2d6df4741515968f17e8f75612bbd86746ba3f8d059d164bc12288cac35211dd
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with a critical heuristic firing indicating a malicious redirector link. The document body, though heavily obfuscated, contains text related to 'partnership agreement format in pakistan' and the malicious URL. This suggests a phishing attempt to lure users to a malicious site under the guise of providing a legal document. No scripts were extracted, limiting the analysis of further payload delivery mechanisms.

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.ru/pify?keyword=partnership+agreement+format+in+pakistan
    • http://wuwex.alliance11.com/uploads/1/3/1/4/131455734/wujokesa.pdf
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/59298491174.pdf
    • https://cdn.shopify.com/s/files/1/0428/2620/3302/files/12495884221.pdf
    • https://cdn.shopify.com/s/files/1/0434/8120/2854/files/81306601290.pdf
    • https://cdn.shopify.com/s/files/1/0434/0393/5911/files/31375600944.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/jusanupopaporuvedonu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1026/8068/files/jawolas.pdf
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/4761931724.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/33711036180.pdf
    • https://cdn.shopify.com/s/files/1/0431/0650/0769/files/personality_adjectives_exercises_elementary.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_off00005d56.bin
5bf83678984e0aea97f48d309fd7e29622519da27b47f2171fbbd11d994f37d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D56 5136 bytes
font_01_sfnt_off00006e8f.bin
7fa5384019632bfc474a26d905eb42bec14899dac006908f1521d9eff1a3e5b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8F 9584 bytes
font_02_sfnt_off00008f17.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F17 4324 bytes

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