Malicious PDF — malware analysis report

Static analysis result for SHA-256 96331ebf3d99a6e8…

MALICIOUS

PDF

43.8 KB Created: 2020-08-28 02:04:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f03a8498d062b0c37243f7e68ca44a5 SHA-1: d649373b642b184464f333617df59e34da5968e2 SHA-256: 96331ebf3d99a6e89170add9418cc97b971f72a669b46d7f309d5a5e494e3f67
120 Risk Score

Malware Insights

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

The PDF document contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.ru/pify?keyword=free+html+templates+for+websites+sim, points to a known malicious redirector. The presence of numerous links suggests an attempt to manipulate search engine results or to distribute further malicious content. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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=free+html+templates+for+websites+sim
    • http://files.knoxcountyrepublicans.com/uploads/1/3/1/4/131438202/92204330.pdf
    • http://files.lovinglifefully.com/uploads/1/3/1/0/131069764/gopok.pdf
    • http://zukidul.theaddictsloop.com/uploads/1/3/0/7/130738714/7602552.pdf
    • http://beruj.airbrushingfabric.com/uploads/1/3/1/4/131453453/fadupofas-gifenexazokibi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/latest_call_of_duty_apk_file.pdf
    • https://cdn.shopify.com/s/files/1/0438/2490/6400/files/beats_solo_3_wireless_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/24961266681.pdf
    • https://cdn.shopify.com/s/files/1/0433/3774/4534/files/lezip.pdf
    • https://cdn.shopify.com/s/files/1/0434/8634/7414/files/ffx_expert_sphere_grid_guide.pdf
    • https://cdn.shopify.com/s/files/1/0441/0900/4952/files/widerugaxosumozuzenegowo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/pevabevajejujom.pdf
    • https://cdn.shopify.com/s/files/1/0434/3011/7526/files/archicad_19_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8683/2035/files/samouczek_angielski_dla_pocztkujcych.pdf
    • https://cdn.shopify.com/s/files/1/0438/9509/5464/files/19218539756.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_off0000635a.bin
2eec96184a7d4a901e112abd425f5695162f11914f25d4a16346977faa2f2473		 pdf-font-stream PDF embedded font (sfnt) at offset 0x635A 5328 bytes
font_01_sfnt_off0000755d.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755D 2268 bytes
font_02_sfnt_off00007f6d.bin
cd4464904855901773f113ca90b5bae33762c35064ce247a1b674147a3648f04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6D 10132 bytes

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