Malicious PDF — malware analysis report

Static analysis result for SHA-256 e79955f7f26ad298…

MALICIOUS

PDF

35.6 KB Created: 2020-08-21 07:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 400bf495063e4f8d7cd4a32a59958c0b SHA-1: d165b2d0ee4dd7f8d1a6a0b6618df566bcf99eaa SHA-256: e79955f7f26ad298e15316c725ed4b370f3b0a25dce678aa4bc5964e4727586b
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to external resources, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Baahubali 2 video songs full hd', suggesting a lure to entice clicks. The primary malicious IOC is the redirector URL, which likely serves as the initial entry point for further malicious activity.

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=baahubali+2+video+songs++full+hd
    • http://files.refugejc.com/uploads/1/3/2/7/132740536/viwulijefetu.pdf
    • http://files.13moonvisions.com/uploads/1/3/1/6/131606486/7756455.pdf
    • http://perep.gardensourcesc.org/uploads/1/3/0/7/130776031/nejare-zawijabon-vobikulagux.pdf
    • http://nifuna.shadygroveoutfitters.com/uploads/1/3/1/8/131871745/4266523.pdf
    • http://bidobuxus.peterandpaulapixie.com/uploads/1/3/1/4/131454215/kuduj-lumataw-wenuxewud-bofixev.pdf
    • https://cdn.shopify.com/s/files/1/0432/7230/6843/files/limiting_factors_biology_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/6254/9910/files/98650337826.pdf
    • https://cdn.shopify.com/s/files/1/0431/6240/2965/files/kann_ein_kindle_lesen.pdf
    • https://cdn.shopify.com/s/files/1/0439/2943/6315/files/thyroidectomy_technique.pdf
    • https://cdn.shopify.com/s/files/1/0435/4405/1871/files/amrutanubhav_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/95815569900.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdf
    • https://cdn.shopify.com/s/files/1/0430/3149/4810/files/52378308293.pdf
    • https://cdn.shopify.com/s/files/1/0428/6971/9199/files/5228393486.pdf
    • https://cdn.shopify.com/s/files/1/0428/8672/5799/files/biodegradation_process.pdf
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/family_feud_powerpoint_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/12942685235.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_off00004d07.bin
8d22fd1151d4ecbccc6a36acae023e0d86dd39699a4c46c5f1b8f393a5c9394b
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D07 5456 bytes
font_01_sfnt_off00005f98.bin
f7f2d5745984b4ea4c56749f3b69dd3529a0bad701c88013e3032e971f315673
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F98 9984 bytes