Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b64febda71deb77…

MALICIOUS

PDF

47.3 KB Created: 2020-08-07 05:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8459042316e29472e251e9bdc36dbc16 SHA-1: a2f78e032e159bd655ab02a3c30029dc1db98abe SHA-256: 2b64febda71deb7778e23c4153a458f566061ae5d3a95a4d3b5c0c37501c5521
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, identified as a link farm, with a critical heuristic firing for a malicious redirector. The primary link, 'https://ttraff.cc/pify?keyword=fusionner+deux+pdf+sans+logiciel', is designed to appear as a legitimate tool for merging PDF files, but it redirects to malicious infrastructure. The document body contains obfuscated text and the authoring application suggests it was generated programmatically, likely to host these malicious links.

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.cc/pify?keyword=fusionner+deux+pdf+sans+logiciel
    • http://files.mommytimeindoorplay.com/uploads/1/3/2/6/132682785/lovus_totikef_samitusapesod.pdf
    • http://tegupo.losamigoshosteltenerife.com/uploads/1/3/0/7/130776054/vibirowa.pdf
    • http://files.reflectionscarlson.com/uploads/1/3/1/4/131453276/rarajovole_fowemotu_povefunukoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/bevogaseterisavozaxoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/xununa.pdf
    • https://cdn.shopify.com/s/files/1/0448/4261/4945/files/odisha_news_paper_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7288/8742/files/convert_ppt_to_small_size_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/6237/8152/files/fexegil.pdf
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/83401456794.pdf
    • https://cdn.shopify.com/s/files/1/0428/2066/5510/files/act_science_conflicting_viewpoints_practice.pdf
    • https://cdn.shopify.com/s/files/1/0439/0027/2792/files/komogomirefivusesubemal.pdf
    • https://cdn.shopify.com/s/files/1/0438/3752/2085/files/asce_7-_10_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/61376417294.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3811/files/mamesobifikute.pdf
    • https://cdn.shopify.com/s/files/1/0431/6515/5487/files/basic_concepts_of_cost_accounting.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_off000069ee.bin
1c6b9eacfc89fa8860cc2ba0eccee61e8e0141017f841d12b0310a979fc8709c
pdf-font-stream PDF embedded font (sfnt) at offset 0x69EE 5148 bytes
font_01_sfnt_off00007b7f.bin
420b11cd9e24104054648ec071f6cfc43ef19bf7d67347a624c431beb07ad8d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7F 11508 bytes
font_02_sfnt_off0000a060.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xA060 4324 bytes