Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2b566a88e7c4a86…

MALICIOUS

PDF

41.6 KB Created: 2020-08-25 06:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc7b59011f2d5d17b78d3d89f2909a70 SHA-1: 508bdc673e0c407db6e9ffa6742265b26b675d03 SHA-256: f2b566a88e7c4a8616bf9d694f7b2b363779faebe50b835d58c1d9fbd3d36c66
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting it is a 'project handing over report format' and includes the malicious URL. This indicates a social engineering attempt to trick the user into visiting a malicious site, likely for further exploitation or credential harvesting.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=project+handing+over+report+format
    • http://rimoba.ljcollinsauthor.com/uploads/1/3/2/3/132302815/gawutasosori_tuxeramekiwi.pdf
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/jalotadopejolitaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5465/1799/files/zisajozirazivagazuf.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/61675731721.pdf
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/poulan_weed_eater.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/68279555900.pdf
    • https://cdn.shopify.com/s/files/1/0435/3343/5039/files/tutorial_lightroom_android_cinematic.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mirizopenifipometetotagoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5637/3659/files/sumaju.pdf
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/public_finance.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/31871546799.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_off000065ee.bin
739ba687ec3b89a128a88e2e789c5b2cafe820e159774a932b897a612cab3a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65EE 5496 bytes
font_01_sfnt_off00007886.bin
b1554c2b90588bf74d955b24ccf51d193d665eb7e8944b6485446e7f61337ebf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7886 9844 bytes

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