Malicious PDF — malware analysis report

Static analysis result for SHA-256 541f6c410abbe098…

MALICIOUS

PDF

51.4 KB Created: 2020-08-10 18:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66f3de03c3b050fa857eb7950ef815ad SHA-1: 5c8eb526fe133057788ee558e0f5057c04301305 SHA-256: 541f6c410abbe0984e27b638154ed8fe747eb197a089ca04827d5e3e0964cad9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though partially corrupted, contains text related to 'Catalytic reforming process pdf' and the URL https://ttraff.cc/pify?keyword=catalytic+reforming+process+pdf, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=catalytic+reforming+process+pdf
    • http://pivaxa.pure-sh.com/uploads/1/3/2/8/132814930/7085794.pdf
    • http://files.thefeduppharmacist.com/uploads/1/3/1/4/131437701/5668199.pdf
    • http://files.stratfordconcertband.com/uploads/1/3/0/7/130739443/dokejirabusebos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/80071123942.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76588695657.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/been_e_gone_esercizi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/scientists_tools_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8279/files/pdf_to_editable_word_document_converter_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/1674/8190/files/livodomomutepegewaxur.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/kajoz.pdf
    • https://cdn.shopify.com/s/files/1/0438/2529/9613/files/26534787065.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/54797625839.pdf
    • https://cdn.shopify.com/s/files/1/0433/9446/5948/files/cerebral_palsy_file.pdf
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/tenitokemugafuwatimupimod.pdf
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/dungeon_and_dragons_monster_manual.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_off00008b0f.bin
6a49341c27e9eb26c9a745d5553c82bcf21393a2236efbd67be923a45fda535c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0F 5484 bytes
font_01_sfnt_off00009da5.bin
d0d77cd377e7841bc1b040e5a3626eed13565eafd71652a9c10df798b2d1cbf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA5 10168 bytes

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