Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce0ed11c632bb01d…

MALICIOUS

PDF

40.2 KB Created: 2020-08-23 00:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53aa61eeaafeedbd82f090068e25f75e SHA-1: 0925522267b839825c46b5d41dff33469f867623 SHA-256: ce0ed11c632bb01d16699d70f9ac0808dfe314315d887dea0aab547345950305
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 phishing or malware distribution. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=example+skills+gap+analysis+template'. Another heuristic flagged the document as a link farm, with many external PDF links, some of which point to unknown domains. The document body, though heavily obfuscated, contains the same redirector URL and references to 'example skills gap analysis template', suggesting a lure to disguise 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.ru/pify?keyword=example+skills+gap+analysis+template
    • http://bogakag.musiccityvikings.org/uploads/1/3/0/9/130969060/xazawiteb-pejosofejinaput.pdf
    • http://girulixo.explorejewishindia.com/uploads/1/3/1/4/131406744/b830143fa0cc62.pdf
    • http://files.raglandclay.com/uploads/1/3/1/3/131383588/darovimenon_sokaretulozi.pdf
    • http://files.tracelearningcenter.com/uploads/1/3/1/6/131637254/nupevuje.pdf
    • https://cdn.shopify.com/s/files/1/0428/7958/2374/files/umn_nmr_status.pdf
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/87417410330.pdf
    • https://cdn.shopify.com/s/files/1/0428/8924/8924/files/nuwuderuxezi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4896/8100/files/chachi_momma_pants.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/vinayaka_chavithi_pooja_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/3666466588.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/melevuxefakusafebu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/nuvulavol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24501063531.pdf
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/nat_geo_magazine_download.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_off00005eb8.bin
9c731899037d32985fc9c8bcb9512284cc9edf5d9cfb06ffb53a313883924bb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB8 5232 bytes
font_01_sfnt_off0000708f.bin
3c3e3b29f701f6e1e1d062a3f6bb7bb76d4ed347b84aa1c8f136e361450eb0bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x708F 10544 bytes

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