Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a290e759b453090…

MALICIOUS

PDF

49.0 KB Created: 2020-08-03 13:11:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5299480cdc4052a464f8e4eb8985dc20 SHA-1: 8f2fe1cac7b8b99119365454e650c042c003b45a SHA-256: 5a290e759b453090b0412f837c3e4e7a995b75d9b71c2a0171b6083f31bcc3d2
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=paradigma+behavioristik+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, also contains the aforementioned malicious redirector URL and several other PDF links, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for malicious purposes. 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.cc/pify?keyword=paradigma+behavioristik+pdf
    • http://files.ecstantonhometown.org/uploads/1/3/1/6/131606268/malufi.pdf
    • http://files.statebirdtogo.com/uploads/1/3/1/3/131382395/a1b0c05f.pdf
    • http://kajewo.tinalouisecalidancecostumes.com/uploads/1/3/0/9/130968921/3816370.pdf
    • http://files.wildroseeducation.com/uploads/1/3/2/3/132303270/ludabekasopebumemeri.pdf
    • https://cdn.shopify.com/s/files/1/0434/9162/3074/files/drake_im_ready_for_you_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0430/4293/0842/files/xajit.pdf
    • https://cdn.shopify.com/s/files/1/0432/6660/5211/files/7003079085.pdf
    • https://cdn.shopify.com/s/files/1/0441/3505/5512/files/piruvupupo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/60575317762.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64238793182.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2941/files/rakijomonowumaketa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5737/3589/files/zedobezofupumejajataxez.pdf
    • https://cdn.shopify.com/s/files/1/0437/1388/8405/files/mujutezevevikelejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30547733638.pdf
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/simotifukosewivobajale.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_off000070ab.bin
acba42cb6a40680290d695236245048765a43122ed7303507f980d3dc38cb92d
pdf-font-stream PDF embedded font (sfnt) at offset 0x70AB 5368 bytes
font_01_sfnt_off000082f5.bin
a420fc1f8a5acb0177d307f6cd83b27b92a3149151e476bdf27a76e61ee8b16b
pdf-font-stream PDF embedded font (sfnt) at offset 0x82F5 11156 bytes
font_02_sfnt_off0000a79f.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA79F 4324 bytes