Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7f4366c316d57d8…

MALICIOUS

PDF

42.4 KB Created: 2020-09-10 12:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22345056fe0d09b3574b26dc1dba7942 SHA-1: 6403d75687b0ca55f999a3f4867c854884f9ce88 SHA-256: b7f4366c316d57d829b8f3c3a372af5997190056cc470c48a8fb97937bd94c4a
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.me'. The document body, though partially garbled, includes the same malicious URL and a seemingly relevant title, suggesting a lure to trick users into clicking the link. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm designed to distribute malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.me/wix?keyword=manual+acls+2015+pdf+espa%25C3%25B1ol+gratis
    • http://gidex.theprospike.com/uploads/1/3/0/7/130776445/5577726.pdf
    • http://files.riccio-builders.com/uploads/1/3/0/7/130775851/tukas_luwotijuzez_sixomawedufij.pdf
    • http://dawuxejop.tavisdupreez.com/uploads/1/3/1/4/131438304/migakiwutekufalawez.pdf
    • http://files.byraephotography.com/uploads/1/3/2/7/132740327/saxiki-ruradevabozon-loresesa-zigojis.pdf
    • http://files.gsjacobsen.com/uploads/1/3/0/8/130874647/7e1c77d4.pdf
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/58889143744.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/sominisiduvez.pdf
    • https://cdn.shopify.com/s/files/1/0433/7103/6822/files/gospel_choreography_videos.pdf
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/young_jeezy_tm_101_zip.pdf
    • https://cdn.shopify.com/s/files/1/0435/2599/6698/files/nototagapunuw.pdf
    • https://static.usrfiles.com/ugd/162fe6_bdb39a71dbde4fcf98abeee66bee35d3.pdf
    • https://static.usrfiles.com/ugd/3b0c81_4993043c8439467292e3a5356dbb15dc.pdf
    • https://static.usrfiles.com/ugd/b96e41_e7c625412306479d9580636a834618e5.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_off00006398.bin
b1b3ac22990d1944fa284a2c70704ae237286291810c7bfbb82c36daacef5658		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6398 5992 bytes
font_01_sfnt_off000077dd.bin
08670cbd018b5188228c4c527c21ab1547602cc8371a81ad73a938140ebff15c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77DD 10392 bytes

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