Malicious PDF — malware analysis report

Static analysis result for SHA-256 da7cc17dd4cafd14…

MALICIOUS

PDF

47.1 KB Created: 2020-08-09 22:30:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6877ecf2addb657b4cced99834fe82da SHA-1: 7d8a900794a87affc503a6a03c7ddc0dd650777f SHA-256: da7cc17dd4cafd142c4605741ef1d64c7d3d956a009b44e5829ffa8a874b084c
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for distributing malicious content. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=person+centred+care+definition+pdf'. The document body, though heavily obfuscated, appears to contain text related to 'person centred care definition pdf', likely a lure to encourage clicks. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the ultimate malicious destination.

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=person+centred+care+definition+pdf
    • http://files.nextlevelgamex.com/uploads/1/3/1/4/131437471/rutifedinonaki-wuvanimagileruv-xeduminebifama.pdf
    • http://gaxosedoz.richardpettittart.com/uploads/1/3/1/4/131437657/wigepiv.pdf
    • http://files.alanwilsonphotography.com/uploads/1/3/0/7/130738679/ferinon_lijobosekixorus_fasozopimumopap.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/bazorutopaxamodelazarif.pdf
    • https://cdn.shopify.com/s/files/1/0434/8585/5897/files/dasiwerexugijigijodinavej.pdf
    • https://cdn.shopify.com/s/files/1/0429/6792/4899/files/electrical_engineering_interview_questions_free.pdf
    • https://cdn.shopify.com/s/files/1/0446/6973/0979/files/northstar_reading_and_writing.pdf
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/65566540319.pdf
    • https://cdn.shopify.com/s/files/1/0433/9089/4247/files/ruby_shell_command.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1758/files/35494460330.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/3._5_spell_compendium.pdf
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/88716302979.pdf
    • https://cdn.shopify.com/s/files/1/0448/3871/5552/files/event_emitter_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/pimadol.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/b_arch_paper_2.pdf
    • https://cdn.shopify.com/s/files/1/0440/9170/3448/files/guide_aviculture.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_off00007bb6.bin
8e2664ac1db1cc3973cd7f142d8da20894dbb0dd87d827d32df7947c37c35d1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB6 5116 bytes
font_01_sfnt_off00008d30.bin
ad0ae5ef85c788a8809dac7f41adc3397616953596d0415d014e3e142324da1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D30 9900 bytes