Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b460804067cd7b…

MALICIOUS

PDF

116.0 KB Created: 2020-08-20 20:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43bbc3f9fcb8fdc530b400426d944fd4 SHA-1: 38e7c4544e9117742aefcf71d6d8f87d6a37ee7d SHA-256: f0b460804067cd7b11d90d4232f52bb0d81b1d7d55478d579828498563976d97
140 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=language+guide+swift'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to generate traffic or distribute content through numerous links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the lure. The presence of a callback phishing lure heuristic further supports the malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=language+guide+swift
    • http://files.eco-tique.com/uploads/1/3/0/8/130813524/6897127.pdf
    • http://files.larryagibbons.com/uploads/1/3/1/3/131384589/terijelani.pdf
    • http://sijekipa.girlplusbulldogs.com/uploads/1/3/1/4/131453133/jisirejipiwixizadisi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5430/1338/files/13557137049.pdf
    • https://cdn.shopify.com/s/files/1/0438/0642/5249/files/fejegux.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/24009552661.pdf
    • https://cdn.shopify.com/s/files/1/0431/2478/5319/files/gumuledemumatubij.pdf
    • https://cdn.shopify.com/s/files/1/0438/1723/8685/files/nature_beautiful_hd_wallpaper.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/bepuwefozejubemu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4247/1064/files/93944825212.pdf
    • https://cdn.shopify.com/s/files/1/0439/2756/8552/files/telephone_billing_system_project_report.pdf
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/remewemugosulokekun.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/27131768476.pdf
    • https://cdn.shopify.com/s/files/1/0437/9967/5040/files/89293931315.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/vubakedakonejivuzewarusu.pdf
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/one_punch_man_minecraft_skin.pdf
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/65409207745.pdf
    • https://cdn.shopify.com/s/files/1/0435/0181/3915/files/35408917287.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_off00018842.bin
d8eac405eefd69b6a2789d07f7663054eb68733627d0ac325c5b6b4948acfa74
pdf-font-stream PDF embedded font (sfnt) at offset 0x18842 4980 bytes
font_01_sfnt_off0001995f.bin
fc3f116bb468f0685d3eb615ac816f3ccf31bdb4ed18a33925a969c4676741cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x1995F 12944 bytes