Malicious PDF — malware analysis report

Static analysis result for SHA-256 d906f535f0a10718…

MALICIOUS

PDF

40.3 KB Created: 2020-08-22 04:25:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ef1f550d9edf69d690ee916b2c47a83 SHA-1: ba3bd6be8dba6b44f0558c21493da2669ea0be3b SHA-256: d906f535f0a10718ab3e9428129d4660254f76e95f7294ace5fd4b118fbc3b56
120 Risk Score

Malware Insights

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

The PDF document contains numerous links, masquerading as a user manual, that redirect to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=airtel+4g+hotspot+user+manual. The document body itself is largely garbled, but the presence of the malicious redirector link and the PDF_SEO_LINK_FARM heuristic strongly indicate a phishing or redirection attempt.

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/pify?keyword=airtel+4g+hotspot+user+manual
    • http://suwusom.legendarypg.com/uploads/1/3/1/0/131071157/wugisaj-xagimar-fefetaxil.pdf
    • http://files.familymatterseducation.com/uploads/1/3/0/7/130738568/b49edb455e3c21.pdf
    • http://files.blmslibrary.org/uploads/1/3/1/6/131606644/ebdfe5.pdf
    • http://gejiw.bkindboutique.com/uploads/1/3/1/8/131856772/relibe_gonakemugiluli.pdf
    • http://files.finalfinishdetailing.com/uploads/1/3/2/7/132710655/levin_linebedanelu_vidaki_vukadidi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/fegerelevodetobevuki.pdf
    • https://cdn.shopify.com/s/files/1/0437/6018/9594/files/tomuziwusez.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/calculus_limits_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/letiwumuwogedizanaziw.pdf
    • https://cdn.shopify.com/s/files/1/0437/6051/7269/files/xevevugubegix.pdf
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/67109521963.pdf
    • https://cdn.shopify.com/s/files/1/0430/7333/9559/files/41733008682.pdf
    • https://cdn.shopify.com/s/files/1/0434/9712/8102/files/nursery_songs_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0432/6440/9764/files/51901775917.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/28089832028.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_off0000607e.bin
4ef3d01b9089d7c7bf6937cecca5a032133bce08aae75ccfa2f86d7685908cc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607E 5308 bytes
font_01_sfnt_off0000726e.bin
7dae894af1a139be2c046dffa4df96dcbafeb6753c160fc14bbea5658fd5bf7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x726E 9948 bytes

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