Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0982f9a6195b08f…

MALICIOUS

PDF

36.4 KB Created: 2020-09-14 04:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ed1e7ee2446ce0844e5003e98d6dceb SHA-1: 1da9f5c825aeac742c6b00d886f5f13fad752317 SHA-256: d0982f9a6195b08f3ac8fa8f62578be8d1ede3c52240a05ce9dcd2a77002c4d9
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a harmful site. The document body, though heavily obfuscated, contains a URL that appears to be related to product information, likely serving as a lure. The presence of a link farm heuristic further suggests a malicious intent to distribute links.

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.me/pify?keyword=reebok+answer+5+10.5
    • https://static.usrfiles.com/ugd/b1b16e_213d83cbe11243169575d5a08eebb326.pdf
    • https://static.usrfiles.com/ugd/33a2e4_5a73f1297c1d458b9a9d24605adfed76.pdf
    • https://static.usrfiles.com/ugd/314c35_b63f03a0051448fc87c049eb2555636e.pdf
    • https://static.usrfiles.com/ugd/e948c1_49ada8bb34a840b5a67498c2a8cc882b.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/discord_server_ideas.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/2333714411.pdf
    • https://cdn.shopify.com/s/files/1/0437/8437/2386/files/50173679578.pdf
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/vezopokixawuroba.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/lujajaloxipaxalasirit.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/46612032749.pdf
    • https://cdn.shopify.com/s/files/1/0428/4314/4355/files/australia_visa_form_1415.pdf
    • https://cdn.shopify.com/s/files/1/0441/2683/0744/files/7973306293.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/knee_bursitis_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/34252173117.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_off00004f3c.bin
5e02ffd8445fafeae3bf9b8f4f01f0e27e41d2c3706180aa7373b69be38d0522		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3C 5300 bytes
font_01_sfnt_off00006179.bin
aae89acff65a5574aa456f1176908df1095190ece719e3fab548f695683e8628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6179 10052 bytes

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