Malicious PDF — malware analysis report

Static analysis result for SHA-256 25a46dce37eeb504…

MALICIOUS

PDF

38.6 KB Created: 2020-08-30 12:24:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91ccddc75623e8d0229cf82cd5ed5a24 SHA-1: 6c5e868ec5e03a7ed3be604f9e0b7e371fe77853 SHA-256: 25a46dce37eeb50405fb3dac8f3d89bdb87290f363af72e3e79048ebff14f44d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=lambi+judai+jannat+female+mp3+download'. This URL is presented within the document body, disguised as a search result or download link. The file also exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to 'static.usrfiles.com'. The primary malicious URL is likely intended to redirect the user to a secondary malicious resource, potentially for malware delivery or phishing.

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=lambi+judai+jannat+female+mp3+download
    • https://static.usrfiles.com/ugd/b8c837_686d7e1507834feaa6062da4f1634f69.pdf
    • https://static.usrfiles.com/ugd/b8c837_42efeeb58ba64490b56b5e5afc6089a0.pdf
    • https://static.usrfiles.com/ugd/a4d998_03408f2be438472e8783c0eaf6bb43e4.pdf
    • https://static.usrfiles.com/ugd/b8c837_546f0c14522f407285d95ada23eb0cad.pdf
    • https://static.usrfiles.com/ugd/93c935_250d70e0f72442a18ccb1c1272f9cbfe.pdf
    • https://static.usrfiles.com/ugd/b52961_8ed66cd4cf2343fb845a03482968c80e.pdf
    • https://cdn.shopify.com/s/files/1/0463/5050/0002/files/mole_atom_grams_conversion_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zofes.pdf
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/perfect_situation_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/assetto_corsa_tracks.pdf
    • https://cdn.shopify.com/s/files/1/0429/8162/1919/files/70373000314.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/informatica_tutorial.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_off00004907.bin
fd1fd78bd89616c9f1e299bc5948faef12111ca91c41ab7b8c1e98bd37d5c0db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4907 5328 bytes
font_01_sfnt_off00005b2f.bin
7773510c87f3dd28eb2bc6dfe5af42903d17daf4e60a46e49fd9b0925fe4c63b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2F 10048 bytes
font_02_sfnt_off00007dd3.bin
51bd1f557cd9769416f236bfe85e121ac3e3d575e245a21f67f3f9b7e071eac7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD3 4108 bytes

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