Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b77fe8a68b44576…

MALICIOUS

PDF

40.4 KB Created: 2020-08-30 06:20:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 547b404296f7531ed09dd23f9a4b0bc5 SHA-1: b776798d157dd444af206d7ebb7b6626580e148a SHA-256: 3b77fe8a68b4457694c236919909ba155ddc469f9daf752d2adc29a859803f23
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on static.usrfiles.com. One of the primary links, found in the document body, redirects to ttraff.com, which is flagged as a malicious redirector. This suggests a social engineering attack aiming to trick users into visiting malicious sites, likely for further malware delivery or phishing. The document body itself contains garbled text but includes the malicious URL and references to film downloads, reinforcing the lure.

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.com/wix?keyword=evrensel+film+indir
    • https://static.usrfiles.com/ugd/b8c837_9aa87b3a407b411b992e3fae46b32f23.pdf
    • https://static.usrfiles.com/ugd/b8c837_da30d6ebb71e486ba35eac40279845ff.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd4141fcf85948148f7b269342f39ab0.pdf
    • https://static.usrfiles.com/ugd/a107db_43986613883449a9a166823236a29f1e.pdf
    • https://static.usrfiles.com/ugd/4826f5_9253a36727e04e42ade00ee8c62a9c93.pdf
    • https://static.usrfiles.com/ugd/b8c837_c207b765a0f34def87e54e84cc07233c.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e07387318ce4705b798c2e772f050b9.pdf
    • https://cdn.shopify.com/s/files/1/0440/5208/6934/files/bumblebee_transformer_symbol.pdf
    • https://cdn.shopify.com/s/files/1/0437/6847/9893/files/88590467557.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5303/files/true_market_value_of_car.pdf
    • https://cdn.shopify.com/s/files/1/0460/0207/7855/files/letter_format_for_applying_teacher_post.pdf
    • https://cdn.shopify.com/s/files/1/0447/3189/1861/files/common_catholic_prayers.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/fomudosajafafirek.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_off00005e84.bin
b0efc15a9c73fc466285d857838da07e4069f397a9902b3771c59bd12f259465		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E84 4860 bytes
font_01_sfnt_off00006ef4.bin
87fcb000c7481ee0e2052671b194cd98c2f938f8337594e4ae83d8742f8c9f06		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF4 11940 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.