Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea79f14a17137c9b…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 04:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 537acd5ee98e747aadf05cb34a428de5 SHA-1: 0da21fc22c5aad3547a810d431554eaa3be6bfeb SHA-256: ea79f14a17137c9b7d798aad8ad5ad6144b4c006cc327738a8e89ff2213bc8ca
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=browser+for+iphone', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution, under the guise of offering a "Browser for iPhone". No scripts were extracted, limiting the analysis of direct execution capabilities.

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=browser+for+iphone
    • http://files.str8coastin.com/uploads/1/3/1/4/131483361/najobajupuwoxo-pamodegujodava.pdf
    • http://sepukamu.bridington.com/uploads/1/3/1/3/131380181/5577003.pdf
    • http://files.kerripinchuk.com/uploads/1/3/1/4/131437655/zobapanenogujifo.pdf
    • http://xuwirimog.fromthebottom2thetop.com/uploads/1/3/2/8/132814930/b299e4e2.pdf
    • http://files.vasiliapiritidou.com/uploads/1/3/0/7/130776724/jarumidemo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3382/0322/files/82733019629.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/cineform_cfhd_codec.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7255/files/bodyweight_crossfit_workout.pdf
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/detom.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/soil_slope_stability.pdf
    • https://cdn.shopify.com/s/files/1/0429/2660/4447/files/39186469702.pdf
    • https://cdn.shopify.com/s/files/1/0436/0568/8483/files/38476536737.pdf
    • https://cdn.shopify.com/s/files/1/0434/4302/8120/files/datugupiwewogedoxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5933/9679/files/poliarteritis_nodosa_fisiopatologia.pdf
    • https://cdn.shopify.com/s/files/1/0437/9839/7085/files/fiparoxasitalisonevosodet.pdf
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/biological_oceanography_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/15795961797.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_off00006f58.bin
b17b1b114582d771fc18673a006d7cb2f6bb464c920448d3e52d762a92e8a3c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F58 4888 bytes
font_01_sfnt_off0000800b.bin
f1265e867a26bc3030a03bec507e485909c01c6bc43d6eb6b7733ec8054e4637
pdf-font-stream PDF embedded font (sfnt) at offset 0x800B 10624 bytes