Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead4f5beeaf20260…

MALICIOUS

PDF

41.0 KB Created: 2020-08-22 16:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9598fc48b5348593b187fdce6079fc80 SHA-1: 536189e7cf2faf49fe19f0e7a6b9f4e9d7879e45 SHA-256: ead4f5beeaf202605094225e2752b18adc97a37e30f5fdbfb4f9386a0fd8a7ce
120 Risk Score

Malware Insights

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

The PDF document was identified as malicious due to the presence of a critical heuristic firing for a PDF redirector link pointing to `https://ttraff.cc/pify?keyword=d%2526+d+5e+drunken+master+guide`. Additionally, another critical heuristic detected a PDF link farm containing numerous external PDF links, many hosted on `cdn.shopify.com`. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to phishing pages or malware downloads.

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=d%2526+d+5e+drunken+master+guide
    • http://files.nwlj.co.uk/uploads/1/3/1/8/131856435/derabudixasonelag.pdf
    • http://mukoxajar.katahdinengineering.com/uploads/1/3/0/7/130775413/9047560.pdf
    • http://files.sixinseoul.com/uploads/1/3/0/7/130775357/2c5f53008f.pdf
    • http://files.mazzapics.com/uploads/1/3/1/1/131163859/fanexep.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/87741872405.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/77710268721.pdf
    • https://cdn.shopify.com/s/files/1/0434/9332/7008/files/petipunijuguwavuforar.pdf
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/fowejadasokifu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/sizafokadulasenam.pdf
    • https://cdn.shopify.com/s/files/1/0437/4324/8545/files/gakezenonuritovoma.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/jidatim.pdf
    • https://cdn.shopify.com/s/files/1/0429/0222/5059/files/wewokigozimojul.pdf
    • https://cdn.shopify.com/s/files/1/0429/4580/6503/files/65558471531.pdf
    • https://cdn.shopify.com/s/files/1/0438/0668/7394/files/financial_aid_appeal_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0451/7367/0037/files/b._pharm_2_year_syllabus.pdf
    • https://medlineplus.gov/vitamind.html
    • 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_off00006524.bin
aee99b222cd6436686fc1950c70eddb31f3190a8e42336a2f9d4910ea93cda3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6524 4156 bytes
font_01_sfnt_off0000734f.bin
64e6b9bafb7d0e481aab7668b177489ad27c8317e8f34ec68123cd67ab1bc230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x734F 11008 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.