Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7075d25a2dffde3…

MALICIOUS

PDF

42.5 KB Created: 2020-08-29 22:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45b1b7d60b7dd4d2b6b53b34f6a91215 SHA-1: cbe626025ae7c675c22b5d85a9150ffd42751cb5 SHA-256: a7075d25a2dffde3fd69083f0adeb51c40640b00d172169c700d84aeafaa28be
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains the URL that the heuristic fired on. This suggests the primary purpose is to redirect the user to malicious content. No scripts were extracted from this sample.

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.ru/wix?keyword=buku+asbabun+nuzul+pdf
    • https://static.usrfiles.com/ugd/b8c837_ce9be25263ae42d2b74b1bbd6293a363.pdf
    • https://static.usrfiles.com/ugd/b8c837_dadf793f1f094f208f6c03aaa8983bea.pdf
    • https://static.usrfiles.com/ugd/b8c837_f20e34dc86bb4b579029d044e266d776.pdf
    • https://cdn.shopify.com/s/files/1/0440/5025/1941/files/ludifuwazatoxekosobupel.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/18746049401.pdf
    • https://cdn.shopify.com/s/files/1/0431/6872/7194/files/ultrasonic_testing_acceptance_criteria.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf74f1ab28294179afd852799f9906ea.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_795155e6a58a4b69b42404448f305c11.pdf
    • https://static.usrfiles.com/ugd/b8c837_62a5d968ecc846639d3de5cc1a6faf2a.pdf
    • https://cdn.shopify.com/s/files/1/0432/0270/7615/files/70558840862.pdf
    • https://cdn.shopify.com/s/files/1/0435/8370/1151/files/ssi_open_water_diver_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/3804/6365/files/21143649305.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
stream_005_off00008146.bin
55394aa086a864942c3b116c4e09307bdb703ffd8e0468302344bb5c9f79371b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8146 18116 bytes
font_00_sfnt_off00004d15.bin
6fe1818da5f1542aa04761ecc3d621635de1ea04d8527434736f88708b8a4dc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D15 5240 bytes
font_01_sfnt_off00005f03.bin
1e8e49f8859b8793b5ab6bea0736a13330db466b56c306d12aa6570c4dcf98dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F03 9964 bytes

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