Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6d0f036d7f5198…

MALICIOUS

PDF

116.5 KB Created: 2020-08-10 04:11:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4aa6ef04d87a4d315e8241678c4ecab1 SHA-1: 8edd10f4457eac5e94d65b1807ad97bb2e229463 SHA-256: 2b6d0f036d7f519898e00dd1f2620c5a811a9b8254698fd0dc7fa259545d80fe
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=biblia+plenitud+pdf+online'. This indicates the document's primary purpose is to redirect users to potentially harmful content. The file also contains a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of a malicious redirector is sufficient to classify the attack pattern.

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=biblia+plenitud+pdf+online
    • http://files.travelwithloridanette.com/uploads/1/3/1/4/131438718/14d415dd2d3e0.pdf
    • http://files.elvesterbc.com/uploads/1/3/1/3/131378950/b9681a31.pdf
    • http://birukowiz.sierissa.com/uploads/1/3/0/8/130874038/duxapuba-negogizir-digibaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/76885528873.pdf
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/the_left_hemisphere_mapping_critical_theory_today.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/bunofunenafavopa.pdf
    • https://cdn.shopify.com/s/files/1/0452/3986/1408/files/xolasomitajurasidubegizu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/sididowujuvufi.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/pazatotagodutinexediva.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/kixaledufikubuzubese.pdf
    • https://cdn.shopify.com/s/files/1/0435/7668/8798/files/xijigadajikole.pdf
    • https://cdn.shopify.com/s/files/1/0434/6304/9376/files/jonevus.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/wumibufokepibofenabej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/duwaxufezemurogagur.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_off000187e1.bin
a596b331df0c9d8c40fdea56a557f6fbfd29588e6e2f9ef6623e9e8743d41e7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x187E1 1612 bytes
font_01_sfnt_off00018fec.bin
d7b3295f0981e8d6c3276ade815a38996be12f4f7fca986ea114ed91e74fa53c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18FEC 4952 bytes
font_02_sfnt_off0001a0d8.bin
0baf22231d132949ab3245e6e579ffecb22440924ebc5dff3860ed3715cde64d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0D8 10392 bytes

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