Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c49d6a0d8692ed…

MALICIOUS

PDF

43.3 KB Created: 2020-09-01 14:20:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b231fb0fd61b1f223f05838ab306436 SHA-1: 62d9a2d85183e94fb0781b09e7602e2fd44bf2b6 SHA-256: e5c49d6a0d8692eda5e26593294a53b31052f74bbf3dfd982a648b71527c3b32
120 Risk Score

Malware Insights

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

The PDF contains a link to a redirector, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic, which is a common tactic for phishing or malware delivery. The document body, though heavily obfuscated, contains text related to 'fake deportation letter templates' and the malicious URL, reinforcing the lure. The 'PDF_SEO_LINK_FARM' heuristic indicates a large number of outbound links, suggesting an attempt to manipulate search engine results or distribute content widely, potentially masking the malicious intent.

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.link/wix?keyword=fake+deportation+letter+templates
    • https://static.usrfiles.com/ugd/79cb75_c66358bcefa24b49b89da5b044fbd323.pdf
    • https://static.usrfiles.com/ugd/b8c837_a6b6dddde05d476581530aef874ed844.pdf
    • https://static.usrfiles.com/ugd/5e81b9_c0cf68bc69e745aabc5d8ca6eff99be8.pdf
    • https://static.usrfiles.com/ugd/d2cc1f_0e58fc53c37f41e7b3a5ea1ba2d7dfbd.pdf
    • https://static.usrfiles.com/ugd/d4da64_3ee25a0a4b164b5f81caec672e43f01b.pdf
    • https://static.usrfiles.com/ugd/ae15ca_dd079d28820a4c55ba8b1260afc723ed.pdf
    • https://static.usrfiles.com/ugd/89363e_d337be4407714730bd000d17088a8093.pdf
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/30495622183.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/youtube_embed_autoplay.pdf
    • https://cdn.shopify.com/s/files/1/0437/2722/4986/files/86880236277.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/mastrena_espresso_machine_manual.pdf
    • https://static.usrfiles.com/ugd/b8c837_250efd67a331445ab6d6eff729935873.pdf
    • https://static.usrfiles.com/ugd/a771bd_6679f03e30a94a3c8a063e41ccdfa141.pdf
    • https://static.usrfiles.com/ugd/b8c837_6068b535c0434f75b77597b0c4d02e5b.pdf
    • https://static.usrfiles.com/ugd/3be3a7_80e1203a36f449ae844e0fb256ba0cbc.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_off00006b07.bin
434800d7722ab4afb76ebc6c54a96786e96b9ae163b88e57356ffef72761012d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B07 5124 bytes
font_01_sfnt_off00007c63.bin
7ddbc1baa3ab1907abf0e2496f0da9693bcba1652b6887100d20034e3f254406		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C63 10488 bytes

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