Malicious PDF — malware analysis report

Static analysis result for SHA-256 45fa6dc038df6979…

MALICIOUS

PDF

32.8 KB Created: 2020-08-24 06:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42fd754706a4243ca5deabeb405b45ed SHA-1: b4e6a4a531b6f21fa78b985682b8d7c1c32e4558 SHA-256: 45fa6dc038df697954a74f0249a9b92ed5dbc85dc87023e420db2a3abe20b426
120 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=commando+game++for+laptop'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, including one hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains fragments suggesting a game lure and the redirector URL.

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=commando+game++for+laptop
    • http://files.hddwoodcraft.com/uploads/1/3/1/4/131406036/7295530.pdf
    • https://cdn.shopify.com/s/files/1/0434/3015/0296/files/sda_church_hymnal_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/7668/0870/files/sifabekix.pdf
    • https://cdn.shopify.com/s/files/1/0431/4962/3462/files/rapidex_english_speaking_course_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/astute_graphics_1._2._4.pdf
    • https://cdn.shopify.com/s/files/1/0434/8893/6102/files/introductory_nuclear_physics_krane.pdf
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/celiac_disease_2017.pdf
    • https://cdn.shopify.com/s/files/1/0438/6498/1664/files/ecocardiograma_basico.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/57057077941.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/59953169317.pdf
    • https://cdn.shopify.com/s/files/1/0431/8923/9969/files/zanipoxujigagu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/turenizivojefejerizimob.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_off0000459b.bin
2c42790dac41855bc37eb83577cb424d2e431622e07153fac2c0008d71af9c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x459B 5088 bytes
font_01_sfnt_off000056cb.bin
c7961fa68c42b12d6e78d1d4395382a0cb5273f9c6c1bd7c3bb074965238710c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56CB 9484 bytes

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