Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef67307e24b859ad…

MALICIOUS

PDF

104.1 KB Created: 2020-09-15 10:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99a75825b389609f2f73e611cb27bdfb SHA-1: fdf246ee057899f62397263361afd195d0a529b3 SHA-256: ef67307e24b859ad29d10c01d4cc035d78d009f66ea8602771657012b3079153
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wb?keyword=all%20the%20mods%203%20guide'. Additionally, it exhibits a PDF link farm pattern, with numerous links to external PDFs, including one hosted on Shopify. The document body, though heavily obfuscated, also contains the malicious URL. These elements suggest the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware delivery.

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/wb?keyword=all%20the%20mods%203%20guide
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/73520116800.pdf
    • https://cdn.shopify.com/s/files/1/0462/5481/7434/files/fudowolud.pdf
    • https://cdn.shopify.com/s/files/1/0434/5767/5421/files/one_page_resume_website_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0458/5845/5705/files/20_log_vs_ve.pdf
    • https://cdn.shopify.com/s/files/1/0435/5234/2184/files/53168403164.pdf
    • https://static.usrfiles.com/ugd/64f9d2_64d9ad6adf0a4ad89ea82c87259ce224.pdf
    • https://static.usrfiles.com/ugd/173616_6c53bd86661d4bb3a96820af0d5bdc67.pdf
    • https://static.usrfiles.com/ugd/b7082a_f48dea6b147d4dd3b8f7642757de62a2.pdf
    • https://static.usrfiles.com/ugd/b4609a_805c973db9da4365951d2b76e1c89c10.pdf
    • https://static.usrfiles.com/ugd/a4ea6c_d0eec65b634646dc9ba9e78473dec027.pdf
    • https://static.usrfiles.com/ugd/12dc78_973e58a0d3734ace8f2170608791f7fe.pdf
    • https://static.usrfiles.com/ugd/2b25e8_39ea48d6a29a47bc94843f81780ed553.pdf
    • https://static.usrfiles.com/ugd/b8c837_4bddd9dbab824720ad073600196511af.pdf
    • https://static.usrfiles.com/ugd/5c9621_be47bed615c044e7bb512d81bf2cfc56.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014f11.bin
5d55c2a6f7759a657a3ad5086e13f4b34c4b3f87c608d906ceea799e6d3229f0
pdf-font-stream PDF embedded font (sfnt) at offset 0x14F11 4860 bytes
font_01_sfnt_off00015fa6.bin
eb1358e14a7997d0d452a993a7cb6eb14edc2c5cd97880793db6d3e874622ad4
pdf-font-stream PDF embedded font (sfnt) at offset 0x15FA6 11060 bytes
font_02_sfnt_off000184e4.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x184E4 4324 bytes