Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7bf64dff5f34014…

MALICIOUS

PDF

32.7 KB Created: 2020-08-25 08:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 626b4b0d02d837eb703027842c142610 SHA-1: 33551e00ea2f8270cbc93cbf2d9ada70b9cea9ec SHA-256: b7bf64dff5f3401493357a57159f24832477bc304482e5241d58224b19da3d10
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to a URL designed to look like a Chase credit card dispute form. This URL, https://ttraff.cc/pify?keyword=chase+credit+card+dispute+form, is the primary indicator of malicious activity. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. No scripts were extracted, but the presence of a malicious redirector strongly suggests a phishing or social engineering attack.

Heuristics 2

  • 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.
  • 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=chase+credit+card+dispute+form
    • http://files.prs.org/uploads/1/3/0/7/130740173/2960153.pdf
    • http://jirofat.fujihoffmann.com/uploads/1/3/0/8/130874633/5703853.pdf
    • https://cdn.shopify.com/s/files/1/0437/1320/0278/files/79538471073.pdf
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/losakib.pdf
    • https://cdn.shopify.com/s/files/1/0431/7813/1611/files/41048430751.pdf
    • https://cdn.shopify.com/s/files/1/0429/4141/5580/files/delegation_definition_in_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/4496/1446/files/spotify_premium_apk_2019_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/74954830917.pdf
    • https://cdn.shopify.com/s/files/1/0431/6404/1365/files/52020742747.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_off000044b2.bin
e8704b3087f922507d7e07a97d878d8498fccaf81092b5ccce6b39f76571c946		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44B2 5268 bytes
font_01_sfnt_off00005674.bin
12accf263a1a531d52d99d6c112067ffb37d17063aabace3315934d68cfcd981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5674 9420 bytes

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