Malicious PDF — malware analysis report

Static analysis result for SHA-256 d260eeb5e1404aa0…

MALICIOUS

PDF

52.4 KB Created: 2020-08-18 23:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6017e11627865cc6456820db9fdcf9ee SHA-1: ef226340a0b39a1e3c1458a0716f517ac2a73948 SHA-256: d260eeb5e1404aa0b665375dd13e00e848c9c9ec91bb161184acc7aa6023efca
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive lure related to a Samsung TV advertisement, embedded with numerous links. One critical heuristic identified a PDF link to known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=samsung+android+led+tv+32+inch`. Another heuristic flagged the document as a PDF link farm, containing 30 external PDF links, many of which point to benign Shopify domains but also include unknown domains that could host further malicious content. The document body is heavily obfuscated but contains references to the Samsung TV lure and the malicious redirector URL.

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=samsung+android+led+tv+32+inch
    • http://dimivuz.flindersislandrunning.org/uploads/1/3/1/6/131636725/xexupupowep-vowiposewebaw-megexa.pdf
    • http://files.mikebeezy.com/uploads/1/3/0/7/130775649/duwotak_pazolew_kadawivomesot_sibamunomafere.pdf
    • http://nokoveneb.lynnebyrnephotography.com/uploads/1/3/2/7/132740623/9550143.pdf
    • http://files.rawbellionjuice.com/uploads/1/3/1/3/131379189/2031299.pdf
    • http://xeviz.customedgenl.ca/uploads/1/3/1/6/131636644/pikuxajanafodikod.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/the_greatest_showman_lindsey_stirling_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/6221/4304/files/57612313862.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/carpentry_workshop_lab_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1410/2950/files/lekuveguzep.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/pimatosasimevikiremalam.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/28091844113.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0678/files/76535453455.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4340/files/amped_five_manuale.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3762/files/tosuza.pdf
    • https://cdn.shopify.com/s/files/1/0429/6366/5055/files/24556552783.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/netig.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_off00008177.bin
2f9e02debedd5799d305bd2493326e969d1d581408d79b8e054b8ba0fee0a455
pdf-font-stream PDF embedded font (sfnt) at offset 0x8177 5812 bytes
font_01_sfnt_off00009512.bin
7c6ededfbd8230e8c528d43bca0149bf7e7006a63f6fa689e625b1eebf2cd060
pdf-font-stream PDF embedded font (sfnt) at offset 0x9512 15372 bytes