Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ed705277ec4444…

MALICIOUS

PDF

46.9 KB Created: 2020-08-31 05:13:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d22d96a1a11fe283859eb39a83bd140 SHA-1: cd2f8ab151b42424925574acd0c5c96bec4f919b SHA-256: f3ed705277ec4444d2f5238436c2cb33baf07bfcd0746e5c2df887e7981ab065
152 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and the malicious URL. This suggests the PDF is designed to exploit users by presenting a seemingly harmless document that redirects to malicious infrastructure, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/wix?keyword=the+black+woman%252527s+guide+to+understanding+the+blackman+pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7203/files/tagokuwudupanepifokenure.pdf
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/galoze.pdf
    • https://cdn.shopify.com/s/files/1/0451/7701/2373/files/vavufulageriragatuzaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5076/1377/files/boraks_pada_makanan.pdf
    • https://cdn.shopify.com/s/files/1/0429/8850/3203/files/13142275935.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/81952747582.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5912/files/53284107118.pdf
    • https://static.usrfiles.com/ugd/09c3c7_41554f661e7841f48182135ca1bcc50c.pdf
    • https://static.usrfiles.com/ugd/cbe7f7_c210fed2b90c45f7a109f576c4614278.pdf
    • https://static.usrfiles.com/ugd/d9d1f5_cd03ef672f3843e1b207bb03155c318b.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf85d2d082af469d8735312db3fb9416.pdf
    • https://static.usrfiles.com/ugd/9cb927_64dfd85d4b254780a8d5adbeb9cd524c.pdf
    • https://static.usrfiles.com/ugd/cf14a4_b922b59760be4c57b3390c845e9e76a0.pdf
    • https://static.usrfiles.com/ugd/b8c837_51f91282f8f0441cb91ac0cf1d6150b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab2ed23df8174c8a945b6e9f43d58aad.pdf
    • https://static.usrfiles.com/ugd/bd5c68_10cc4538336c4240882798198fddb69e.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067f4.bin
5e4138c895b62ee57fa7441edd782f87e9b6e38d88083fe684669c558e2d5002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67F4 5732 bytes
font_01_sfnt_off00007b5b.bin
ae92a493b4672f4716b5fa8d945d1cb98cc586f22aceb2eca7162d6825c409c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B5B 10716 bytes
font_02_sfnt_off0000a001.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA001 4324 bytes

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