Malicious PDF — malware analysis report

Static analysis result for SHA-256 faeefe63ae2ee0d0…

MALICIOUS

PDF

50.1 KB Created: 2020-08-19 16:42:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3fb8896f9bccf00f2402b441e785a3dc SHA-1: 3798194cbe22870d5e5b1c60361a618173cef40d SHA-256: faeefe63ae2ee0d08cdb17eeb063f9dc5106a39e2f31a3d2c34c2f05c06de253
128 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.cc/pify?keyword=b.+ed+entrance+form+2018+du`. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, one of which is `http://files.jennyshepherdphotography.com/uploads/1/3/0/8/130814682/e6f3c54.pdf`. The document body, though partially corrupted, includes text suggesting a form or document title, and a low-severity heuristic indicates an urgency lure. These elements combined suggest a phishing or malware distribution attempt.

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.cc/pify?keyword=b.+ed+entrance+form+2018+du
    • http://files.jennyshepherdphotography.com/uploads/1/3/0/8/130814682/e6f3c54.pdf
    • https://cdn.shopify.com/s/files/1/0438/2952/6690/files/action_verbs_vocabulary_matching_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0428/6621/3031/files/burger_king_coupon_august_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/75256835898.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0471/files/1247067797.pdf
    • https://cdn.shopify.com/s/files/1/0437/1133/2507/files/worogimemu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/definition_and_importance_of_community_participation.pdf
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/xusupolevuliminogolikeba.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/kesotud.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8541/files/amenaza_de_aborto_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/muxuvamojux.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066fb.bin
371288f461d7329e6df1c7a12e50e8b360f9edab31c81ba9f0a18f86196318c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB 5556 bytes
font_01_sfnt_off000079c6.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x79C6 3720 bytes
font_02_sfnt_off00008529.bin
92ede79f3bdce7c4ef91c84f329fa86be425749ea40d049c621af49ccc6bad88
pdf-font-stream PDF embedded font (sfnt) at offset 0x8529 10376 bytes
font_03_sfnt_off0000a8d7.bin
4408d4d4459af501a08aa87400c52f8c9e4234a49d9340e86ba80f4455ceb9e5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D7 5068 bytes