Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8bae08d0685dbfd…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 10:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0619587b77f74f71c371ffae07124554 SHA-1: 8372d411546fac2e5077893d69cde0bd0e09228e SHA-256: f8bae08d0685dbfda4c5c90d0bf07455996cdc0ab2930ce3689041ec9de72855
140 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, contains text related to 'audiovision video maker apk', suggesting a lure to download potentially malicious software. The presence of numerous external links and a malicious redirector strongly suggests a phishing or malware delivery attempt.

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.com/pify?keyword=audiovision+video+maker+apk
    • http://mapatema.livcowle.com/uploads/1/3/1/4/131453459/5340859.pdf
    • http://files.teressafoss.net/uploads/1/3/1/4/131407369/busoxutuziviwobonumo.pdf
    • http://zusedosu.eclectic-shamanism.com/uploads/1/3/0/8/130814328/wegodovigeka.pdf
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/tosijenejiwilisoza.pdf
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/niveseriwonujogineje.pdf
    • https://cdn.shopify.com/s/files/1/0434/1035/8423/files/brew_uninstall_mysql.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1364/files/thaumcraft_1._7._10_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/8964/1116/files/gexajifovufudebulakapowon.pdf
    • https://cdn.shopify.com/s/files/1/0431/8029/4306/files/74039541624.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/46318554335.pdf
    • https://cdn.shopify.com/s/files/1/0440/6696/3621/files/nujapejakafewulaxoguvumag.pdf
    • https://cdn.shopify.com/s/files/1/0445/2777/9999/files/bowflex_powerpro_xtlu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/65401062747.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/demotufilonameviv.pdf
    • https://cdn.shopify.com/s/files/1/0443/1613/1484/files/mixed_modal_verbs_exercises_advanced.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/42448027875.pdf
    • https://cdn.shopify.com/s/files/1/0438/3762/0381/files/ambrose_bierce_chickamauga.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_off00006465.bin
16c95ec4beb5f4f304a945a4cbe827a205722936e59e55f8860845b356c82927
pdf-font-stream PDF embedded font (sfnt) at offset 0x6465 5188 bytes
font_01_sfnt_off000075f4.bin
c75739538cc0e3df443f2c60920b7da67ab4aca170677c609b9aee7deef949f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x75F4 9816 bytes