Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d54382f10b17d9…

MALICIOUS

PDF

41.6 KB Created: 2020-08-12 19:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92ff6e62ba7eb17a697826e758100eb0 SHA-1: dc9fa168e2d9082772db050bc1e9ab21bd3c456c SHA-256: f5d54382f10b17d9e4014cd9d4905c4d5a7d4c30f12a5291a2471b01e96a8e83
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=test+angielski+c1+pdf' which is flagged as malicious. The presence of a link farm heuristic further suggests a malicious intent, likely to distribute further malware or engage in phishing. No scripts were extracted from this sample.

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=test+angielski+c1+pdf
    • http://files.oregonpremiumlabradors.com/uploads/1/3/1/4/131437064/dizipoxu_xadusopor_divud_kiwob.pdf
    • http://files.mwri.co/uploads/1/3/1/4/131453213/f7cdf80926fb.pdf
    • http://files.mariasperanza.com/uploads/1/3/2/7/132712207/3205309.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1626/files/bvi_company_law.pdf
    • https://cdn.shopify.com/s/files/1/0428/4694/5436/files/mebunefowu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/vuvumenezikozele.pdf
    • https://cdn.shopify.com/s/files/1/0441/0291/0104/files/68368278318.pdf
    • https://cdn.shopify.com/s/files/1/0429/9676/0730/files/renal_stone_disease.pdf
    • https://cdn.shopify.com/s/files/1/0438/9486/6088/files/59594823725.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/puzuvaruw.pdf
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/22492334679.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/tupivolomiwidotosumetuw.pdf
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/bupid.pdf
    • https://cdn.shopify.com/s/files/1/0437/6385/9605/files/wikuloruxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7565/7121/files/basic_english_conversation_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0440/3517/8661/files/vidamufuvujujoginase.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_off00006314.bin
ed6f73af730fc10b9bf137de2409a27283e6499ad463cf37167764263ca4ea9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6314 5292 bytes
font_01_sfnt_off0000752c.bin
911bc46b40d431233535e9ec6e4e27c19909292e6f209f7653933d1770cbd4d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x752C 11032 bytes

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