Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1cec3e39cd0c88a…

MALICIOUS

PDF

66.3 KB Created: 2020-09-03 09:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f10ba20ff929f72711ceeeaffe20ff3 SHA-1: 073876f6a85a096bb2f6d594493693375efb2d9b SHA-256: f1cec3e39cd0c88af72a864e11ebf51c764aa20f1293de260506303018e027b2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.club/wix?keyword=agent+vinod+songs+320kbps+free'. Another heuristic indicates a PDF link farm, with a prominent example being 'https://cdn.shopify.com/s/files/1/0432/6542/5570/files/25025161533.pdf'. The document body, though heavily obfuscated, also contains the malicious redirector URL, suggesting an attempt to disguise malicious activity under a lure related to 'agent vinod songs'.

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.club/wix?keyword=agent+vinod+songs+320kbps+free
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/25025161533.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/siparegulagotopit.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/tezasibafonabitowutot.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/45608344931.pdf
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/making_the_connections_padias.pdf
    • https://static.usrfiles.com/ugd/b8c837_45fcd1bd3640482b8b6a1531b34616d9.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/answering_interview_questions_with_no_experience.pdf
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/best_ip_camera_software.pdf
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/17267342952.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/d_d_5e_warlock_guide_xanathar.pdf
    • https://static.usrfiles.com/ugd/d48fe3_7988367ea8414cffa89d3d6899220b7f.pdf
    • https://static.usrfiles.com/ugd/c0b427_c1f174010a6f495abf88419311558c93.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_off0000bbbb.bin
d7f2123d4493d927ccb693c5e6c8b4dd1553a81cfbe9271ca60d2726ddaeeb0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBBB 5660 bytes
font_01_sfnt_off0000cf1f.bin
799447c14cd36fd517d348f52a4e646b18b8dd9d0507908252f225769ea13b76		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1F 14624 bytes

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