Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59cbb23b82111ff…

MALICIOUS

PDF

45.2 KB Created: 2020-08-19 04:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c1a2c79e650c0706c4b6ee9a084529a SHA-1: 17dd2b9d153c9bfe162f3294be7e32b30449699e SHA-256: d59cbb23b82111ff9f8702cb954602f0c33fcb6a483c6f3752bdfa20683144cc
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'mcdonalds happy meal transformers cyberverse' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further supports the malicious intent of directing users to external, potentially harmful, content.

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=mcdonalds+happy+meal+transformers+cyberverse
    • http://zifusu.cmaretreats.com/uploads/1/3/1/4/131437657/3c20cc56.pdf
    • http://nufufeta.redwood-prints.com/uploads/1/3/0/7/130776023/gaxotusibofefe.pdf
    • http://duxapijeb.kaymadeit.com/uploads/1/3/1/3/131381046/kopuliv-zogoge-siwifu-gabekafogisutuv.pdf
    • http://files.runnxc.com/uploads/1/3/1/8/131871433/64dad42e18d8a7f.pdf
    • https://cdn.shopify.com/s/files/1/0432/4868/1120/files/53817462558.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/941497386.pdf
    • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/methylamine_msds.pdf
    • https://cdn.shopify.com/s/files/1/0437/5543/8241/files/86482498913.pdf
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/tusosekomorub.pdf
    • https://cdn.shopify.com/s/files/1/0435/8507/7405/files/meriki.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdf
    • https://cdn.shopify.com/s/files/1/0431/4329/9232/files/58706144341.pdf
    • https://cdn.shopify.com/s/files/1/0437/1392/1175/files/diagnostic_card_error_codes.pdf
    • https://cdn.shopify.com/s/files/1/0439/8976/2206/files/lofogupedokelinuvu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/14469593273.pdf
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/tokidikubuxamitonirito.pdf
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/midepazi.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_off000065b8.bin
6b1886100909a5777bb30fc7b7be00bba8ed48ad5f5b392b7a0cb4783a0739ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x65B8 3016 bytes
font_01_sfnt_off00007072.bin
4e8ff15df21ee4fe814b39f1692870acd217a89d387d2fee3af392557821d0db
pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 5700 bytes
font_02_sfnt_off000083b1.bin
7dab9757f9d2eb7c0846711016c8046d1b342c14b7496b32f9fa73b2bd8577e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x83B1 10324 bytes