Malicious PDF — malware analysis report

Static analysis result for SHA-256 b91d5c2c91f4fa1c…

MALICIOUS

PDF

43.4 KB Created: 2020-08-26 12:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74048958ec90704c2b697fe2e5c711e1 SHA-1: bc475b45a8d6aeba302e87616fb7f322367103dc SHA-256: b91d5c2c91f4fa1c78be9720e9cbf61dbac61b07326e4d690c21ff47e9fcb32d
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the attack. The document body, though heavily obfuscated, contains the same malicious URL and references to other PDFs hosted on Shopify, suggesting a link farm or content-luring strategy. The presence of multiple PDF links and a malicious redirector indicates a phishing or malware distribution attempt.

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.com/pify?keyword=el+exorcismo+de+deborah+logan+repelis
    • http://daxarutok.lakewoodtravelinc.com/uploads/1/3/0/8/130874232/4323897.pdf
    • http://xepinuzex.mmstxregistration.com/uploads/1/3/1/3/131398455/vemobarewijaxa.pdf
    • https://cdn.shopify.com/s/files/1/0438/6763/5867/files/forex_swing_trading_strategies.pdf
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/adobe_photoshop_7._0_software_free_cnet.pdf
    • https://cdn.shopify.com/s/files/1/0428/2764/5084/files/auggie_and_me_pluto.pdf
    • https://cdn.shopify.com/s/files/1/0466/6553/1557/files/mrs_criddles_texas_sheet_cake.pdf
    • https://cdn.shopify.com/s/files/1/0430/0744/3103/files/32076883432.pdf
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/72672165845.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/71897928430.pdf
    • https://cdn.shopify.com/s/files/1/0437/9086/0437/files/pdf_file_splitter_software_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/37828792788.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/twitter_app_icon_android.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/jiluparaxefutulad.pdf
    • https://cdn.shopify.com/s/files/1/0431/8534/0580/files/62488235128.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/
    • https://cdn.shopify.com/s/files/1/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005de5.bin
465556010ae4221e2cb5a09c8a46daf21e0594478eb8f29d37c59781034e6e41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE5 5652 bytes
font_01_sfnt_off000070ef.bin
62b0303006ac3bd66abdb42e405fb09d862dc64a3342547ef6356aacf92d35ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70EF 2080 bytes
font_02_sfnt_off00007ab4.bin
c46eb85b97e61744495658631d52c09e09fbcb471cc282655590663425e7b49b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB4 10904 bytes

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