Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d911d5475b2c6f…

MALICIOUS

PDF

54.3 KB Created: 2020-09-04 08:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa10b9b063fe4e9ff80a39c7a45f956b SHA-1: 80ea6239ea004d14b18afbc6c6185d90f644a014 SHA-256: d1d911d5475b2c6f36f76fa67bd537360cbe10b1a4af3a624451607565ae8f25
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=canon+eos+760d+user+manual+pdf'. This URL is presented within the document body, disguised as a link to a Canon EOS 760D user manual. The document also contains a large number of external PDF links, many hosted on Shopify, which is flagged as a link farm. The presence of a 'download button' heuristic further supports the lure. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=canon+eos+760d+user+manual+pdf
    • https://cdn.shopify.com/s/files/1/0440/7348/4438/files/37728677937.pdf
    • https://cdn.shopify.com/s/files/1/0430/5921/6537/files/government_of_canada_passport_renewal_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/3848/1311/files/jejapumovetosudinus.pdf
    • https://cdn.shopify.com/s/files/1/0458/0130/8326/files/54903631140.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/84507068644.pdf
    • https://cdn.shopify.com/s/files/1/0434/3794/9090/files/jagagazimawo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5725/0455/files/migukesipalukere.pdf
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/39405472599.pdf
    • https://cdn.shopify.com/s/files/1/0434/0308/3928/files/54391232228.pdf
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/injustice_2_mobile_gear_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/0544/3237/files/derixexadizawudagosoji.pdf
    • https://static.usrfiles.com/ugd/b8c837_a644aabf54cd4891aee24555feb8c015.pdf
    • https://static.usrfiles.com/ugd/d3758e_d159d64373cd4980bcc09284baccdb9a.pdf
    • https://static.usrfiles.com/ugd/a18aa6_f7207cbc75c640e39307b4fe9c83060b.pdf
    • https://static.usrfiles.com/ugd/c8a981_a2fc0f5ced644f799e2dafa2a5f54334.pdf
    • https://static.usrfiles.com/ugd/d775a9_1142d08ffb504ea285929e24e1dce500.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_off00007b1b.bin
707f044220626673030db1e929683b7e6be6df4515348478205ae719871ec17a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1B 3312 bytes
font_01_sfnt_off000086fd.bin
33475da10b48acdfc102f519be3fa23eee3a2e835577bb3057bfb73b3cab358f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86FD 5468 bytes
font_02_sfnt_off0000997b.bin
89d5aa201d43b3fe48f8e19f1e18e261c1f7ad5b3ccfcfc7991012ee9da64809		 pdf-font-stream PDF embedded font (sfnt) at offset 0x997B 16668 bytes

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