Malicious PDF — malware analysis report

Static analysis result for SHA-256 29409ef013d089f6…

MALICIOUS

PDF

41.0 KB Created: 2020-08-09 19:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0049568a001246e39b3ad990c8a41b41 SHA-1: 80cf8d93778c66eb5e8cd19269c60fc6e6eb332e SHA-256: 29409ef013d089f66489a45950c5ef48c569e01364899a0e6d887b4605abf3af
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.cc', suggest an attempt to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to financial planning and auditing, likely serving as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=financial+planning+and+budgets+understanding+the+auditing+process+pdf
    • http://takamig.losalamosquaranteencenter.com/uploads/1/3/1/1/131164250/sewonasizowes.pdf
    • http://files.wecreativedosolutions.com/uploads/1/3/0/7/130739789/xeriluredoserusek.pdf
    • http://files.danceenvoy.com/uploads/1/3/2/7/132740871/c23d9645fc.pdf
    • http://files.miriamruberlartist.com/uploads/1/3/1/4/131483019/828517e6fc26dc2.pdf
    • http://files.eponaequestriandesign.com/uploads/1/3/0/9/130970014/favolazal-lewidopiwur-mogud.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/une_tempete_aime_cesaire_french.pdf
    • https://cdn.shopify.com/s/files/1/0438/1776/2973/files/xabowu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0877/0726/files/12186340651.pdf
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/marshall_and_swift.pdf
    • https://cdn.shopify.com/s/files/1/0428/1237/5207/files/veviwipasunodevupagudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/garmin_nvi_760.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3483/files/gonilajilab.pdf
    • https://cdn.shopify.com/s/files/1/0435/3120/6808/files/jeduzonokisovibabun.pdf
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/xaxowijujoleredijopuda.pdf
    • https://cdn.shopify.com/s/files/1/0438/4754/9088/files/shrink_the_size_of_a.pdf
    • https://cdn.shopify.com/s/files/1/0441/3286/0056/files/bobejabonaripe.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/34429508807.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/tenudexol.pdf
    • https://cdn.shopify.com/s/files/1/0431/2789/8268/files/namubunubixusekemufen.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_off0000619a.bin
33a77d3ec4e8f496f124d5f06ae7e4d82cea5b11f727a1d94e1de1c525870bfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x619A 5512 bytes
font_01_sfnt_off00007447.bin
3276c9ca9f41de0aaaba05693a9c82888148eaa58e5966bf98fbf90e55b75b17
pdf-font-stream PDF embedded font (sfnt) at offset 0x7447 9876 bytes