Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4b84a10faeaeb5…

MALICIOUS

PDF

51.7 KB Created: 2020-08-12 13:42:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 806ddfe93105958bd586578689293219 SHA-1: 179677937cbfa3fc41804dcef4777574ae706a35 SHA-256: fa4b84a10faeaeb53fc48d4184ef174fbb46a0e3fa91745b4ebcf51b97c90f5f
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.ru/pify?keyword=ganpati+aarti+sangrah+marathi+lyrics+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The file also contains a large number of embedded links, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, limiting the analysis of further stages.

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=ganpati+aarti+sangrah+marathi+lyrics+pdf
    • http://buvivo.garageshopcustomwoodworking.com/uploads/1/3/1/6/131637354/zoluworirematutebibu.pdf
    • http://files.tompa-fg.com/uploads/1/3/0/8/130874482/vilidazofawad.pdf
    • http://repakakov.dealswithamy.com/uploads/1/3/1/8/131857247/pozagoruxunod-betixagavi-satefaneta.pdf
    • http://files.planofmd-dc.org/uploads/1/3/1/3/131383581/9b672db77981345.pdf
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/63725301057.pdf
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/face_expression_recognition_matlab_code.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/27340086975.pdf
    • https://cdn.shopify.com/s/files/1/0438/4659/8821/files/zobesijasepu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/4356737178.pdf
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/vapudiboruligunut.pdf
    • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/hygge_meik_wiking_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/66780303435.pdf
    • https://cdn.shopify.com/s/files/1/0436/2344/8736/files/16072306208.pdf
    • https://cdn.shopify.com/s/files/1/0431/8953/4869/files/82278950220.pdf
    • https://cdn.shopify.com/s/files/1/0432/4163/5997/files/talilirodowadolu.pdf
    • https://cdn.shopify.com/s/files/1/0444/2098/9095/files/forex_pin_bar_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/32527005362.pdf
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/mezogozivusivitegovim.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_off00008295.bin
9258866ae53b8e166f0488f6244f61a9ddddc477d0f6e44b0ff3b4b3f82b2efb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8295 5704 bytes
font_01_sfnt_off000095d5.bin
2497a64a61445ad03ee42cbca0e1e4a30ba615d239a8de7f507af444ce43d286
pdf-font-stream PDF embedded font (sfnt) at offset 0x95D5 13804 bytes