Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdc809d7f3375852…

MALICIOUS

PDF

41.5 KB Created: 2020-09-13 19:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad2483e706b4a0f360c957bed0c3d053 SHA-1: 5181fa6b1c394aeea92e71a07dc793a86998f3b6 SHA-256: bdc809d7f33758528fa9003972e13bf7dd9d3f3032918433c4c37c31cf6f0cdc
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many of which point to external resources, a common tactic for link farms and SEO abuse. One prominent link, 'https://ttraff.me/pify?keyword=bloons+td+6+apk+free+download+ios', is identified as a malicious redirector, suggesting an attempt to lure users to malicious content. The document body, though heavily obfuscated, contains references to game downloads, reinforcing the lure. The ML classifier also strongly indicated maliciousness.

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.me/pify?keyword=bloons+td+6+apk+free+download+ios
    • http://bivili.ohvintrkjam.com/uploads/1/3/1/4/131483108/152245d5.pdf
    • http://files.gingerhannah-lifecoach.com/uploads/1/3/1/4/131452958/ed49d.pdf
    • http://files.inplaypilates.com/uploads/1/3/1/3/131384604/zifivagi-nelobus-tabixu.pdf
    • http://files.mitchcom.com/uploads/1/3/2/6/132695467/99465709.pdf
    • http://kewitazuf.fairytalebrides.org/uploads/1/3/0/7/130776763/51ba9925700e1.pdf
    • https://cdn.shopify.com/s/files/1/0438/1235/6253/files/jitozolavofuwidexawomig.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/78806275481.pdf
    • https://cdn.shopify.com/s/files/1/0448/4520/3618/files/infinite_geometric_sequence.pdf
    • https://static.usrfiles.com/ugd/909b15_ca4c23aab782460a8bcebbbed7a21e35.pdf
    • https://static.usrfiles.com/ugd/ced2dc_63e04f6c076e45399e400815aa738f01.pdf
    • https://static.usrfiles.com/ugd/1c44ce_8010a68483384b8289d28fed20f7e1d5.pdf
    • https://static.usrfiles.com/ugd/c618e9_185cddb267c147d1b2c807afea2febda.pdf
    • https://static.usrfiles.com/ugd/cf14a4_c1451e8032514d06885451ff7c752e15.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_off00006225.bin
f75d3c1cac5418fb1e3431c7629b705037544a5ad9f20316b9d72a876eee13df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 5396 bytes
font_01_sfnt_off000074a2.bin
e417b799455ab2201a13d3560ebced195cb60da1d4756e23bb52ae7658649e73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A2 10788 bytes

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