Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10ed56633cced03…

MALICIOUS

PDF

64.6 KB Created: 2020-08-31 13:10:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ed7f5f5241d9eb981cf5b6bf0cd1c7f SHA-1: f314a829233261e8e6fbc13ba35c288a2e0a5c96 SHA-256: c10ed56633cced037454fb166bf5c0392bedabe7e4f9e8fddb2ecd427ea4c481
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=ics+field+operations+guide+philippines'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains this URL, suggesting it's the primary lure. No scripts were extracted, and the file type is PDF, indicating a phishing or redirection attack.

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/wix?keyword=ics+field+operations+guide+philippines
    • https://cdn.shopify.com/s/files/1/0434/0409/9735/files/zx_spectrum_basic_programming.pdf
    • https://cdn.shopify.com/s/files/1/0458/5432/6937/files/asexual_reproduction_by_spore_formation.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4496/files/sipizevadeliga.pdf
    • https://cdn.shopify.com/s/files/1/0436/1699/3440/files/zuruxezowa.pdf
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/luropupa.pdf
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/31249745074.pdf
    • https://cdn.shopify.com/s/files/1/0437/0753/1414/files/samsung_galaxy_s7_edge_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/2907/5880/files/alamelu_manga_songs_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/5174/5442/files/30926001326.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdf
    • https://cdn.shopify.com/s/files/1/0437/4121/6929/files/debibosa.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/garewu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18813115042.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_off0000b25e.bin
2281c6d798aabed8eaedb17b11607b701753b85ea749d183451b96977c55e5c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB25E 5236 bytes
font_01_sfnt_off0000c41b.bin
a5d46f93586f7df1d948ab206babc22926328382c40243c1398e9500721bbe95		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC41B 10156 bytes
font_02_sfnt_off0000e6e1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E1 4324 bytes

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