Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab9aa8d325224cb7…

MALICIOUS

PDF

41.6 KB Created: 2020-08-14 19:25:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 773f89763c485401be5c1c119fe38e4c SHA-1: 06132c3e3f5344ce55916959b9ed4da5ea3ae741 SHA-256: ab9aa8d325224cb7e3f9e5deab6d174f78c1588ebf454108b353bb3c74cca64f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to external websites. One of these links, 'https://ttraff.cc/pify?keyword=export+html+to+pdf+react', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the malicious intent.

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=export+html+to+pdf+react
    • http://kojifi.holytrinitylowmoor.com/uploads/1/3/1/4/131453574/gekujemuv.pdf
    • http://gupefunin.oduboc.com/uploads/1/3/1/8/131857419/raketi_mebajafavabu_mezoxazikal.pdf
    • http://files.bobabobateabar.com/uploads/1/3/0/7/130775393/mewejikidekikek-pizoko-wesinexezutuwof.pdf
    • http://sigubab.mikemcguigan.com/uploads/1/3/2/6/132681464/f028296.pdf
    • http://files.kasakesari.com/uploads/1/3/0/7/130739143/8366599.pdf
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/define_coliform_bacteria_science_term.pdf
    • https://cdn.shopify.com/s/files/1/0435/7727/8627/files/ramavoravi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2992/8863/files/when_does_magnemite_evolve.pdf
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/nikubiditolakewawaluxet.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3674/files/86488437590.pdf
    • https://cdn.shopify.com/s/files/1/0440/8596/9048/files/24643469197.pdf
    • https://cdn.shopify.com/s/files/1/0430/8110/5575/files/juzodemexinulema.pdf
    • https://cdn.shopify.com/s/files/1/0431/9130/4343/files/1_mb_to_gb.pdf
    • https://cdn.shopify.com/s/files/1/0429/1382/4927/files/68567189082.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/didafezetaxakelabukewiju.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mogapusezonoxifetomo.pdf
    • https://cdn.shopify.com/s/files/1/0448/5254/3649/files/stuart_wilde.pdf
    • https://cdn.shopify.com/s/files/1/0436/2023/7475/files/climate_change_adaptation_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/gudosek.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_off0000641f.bin
605fabb68f1ef963302e3f17f6498fc4c4ffc78ed6f70e4366d86e292badfaba
pdf-font-stream PDF embedded font (sfnt) at offset 0x641F 5244 bytes
font_01_sfnt_off000075d3.bin
87001c6db0212ef8599c82ed1f93c5ba8d933de73d239e1e5790f6a5b024f60f
pdf-font-stream PDF embedded font (sfnt) at offset 0x75D3 10468 bytes