Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff458e10aca695ed…

MALICIOUS

PDF

53.3 KB Created: 2020-08-16 11:01:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87a868ac26e5c314336e52f15b0adbee SHA-1: e52386192b5de3a482577abf7faccbfa32c9315d SHA-256: ff458e10aca695ed80a7575fc4ad21d6a3dde9c68a5a95c37e289fc157889676
160 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector pointing to a URL related to an 'Ayushman Yojana form last date'. This, combined with the 'SE_ADVANCE_FEE_SCAM_LURE' heuristic, strongly suggests a social engineering attack designed to trick users into clicking malicious links under the guise of a government scheme or prize. The PDF also hosts a large number of external links, many pointing to Shopify domains, which is characteristic of link farm techniques to improve search engine ranking for malicious content.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=ayushman+yojana+form+last+date
    • http://files.remarcable.me.uk/uploads/1/3/1/4/131438245/nobinopovuzip.pdf
    • http://files.claireslater.co.uk/uploads/1/3/1/8/131856158/novewoxedof.pdf
    • http://jakiwog.onesweetbakingco.com/uploads/1/3/0/7/130776445/tozutuzuses.pdf
    • http://ritofifox.anotsoemptynest.com/uploads/1/3/0/9/130969723/kuzatesev.pdf
    • http://files.akbeadsociety.org/uploads/1/3/0/9/130969404/jakoza_bizudotor.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/pekevimagijobave.pdf
    • https://cdn.shopify.com/s/files/1/0433/8706/0375/files/pitokutepu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/heart_centered_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0435/0889/1807/files/80300498060.pdf
    • https://cdn.shopify.com/s/files/1/0437/7300/1877/files/76022811996.pdf
    • https://cdn.shopify.com/s/files/1/0429/1988/7001/files/waveso.pdf
    • https://cdn.shopify.com/s/files/1/0432/1935/3757/files/pobuse.pdf
    • https://cdn.shopify.com/s/files/1/0428/5700/5215/files/matonomimuvowux.pdf
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/doena_de_addison.pdf
    • https://cdn.shopify.com/s/files/1/0440/4668/0214/files/minecraft_water_slide.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_off0000857e.bin
a4b7117073e4980578e6329fb6727ed567c90e0a233ab7b9965412f21ba25bda
pdf-font-stream PDF embedded font (sfnt) at offset 0x857E 5148 bytes
font_01_sfnt_off000096e0.bin
2ebc4efac57d2c49e475cf967cf4463ece9d595deb44f8cedfadad7b2fcdd1cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x96E0 10448 bytes
font_02_sfnt_off0000ba43.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xBA43 4324 bytes