Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6f0155ddd12628…

MALICIOUS

PDF

50.4 KB Created: 2020-08-07 15:38:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0ae9e2240a03635dc7fe7af2693bfec SHA-1: 7b1ff5e93d2fa50747433956b517281037f3e844 SHA-256: 1e6f0155ddd1262811813ae345bc4a8a29032b42d1fdd1991c45535754884390
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=asperger+s+syndrome+workplace+survival+guide+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious destination. No scripts were extracted, limiting the analysis of further execution steps.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=asperger+s+syndrome+workplace+survival+guide+pdf
    • http://files.fccgreensburg.com/uploads/1/3/0/7/130739318/88efa29c479a51.pdf
    • http://dukiwaduj.nymeria-uk.com/uploads/1/3/0/7/130738696/1099423.pdf
    • http://jasuvip.softwareselection.net/uploads/1/3/1/6/131607062/559079.pdf
    • http://files.joy-productions.com/uploads/1/3/1/3/131398091/dbb171475cb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/eastern_sun_diablo_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/6929/3223/files/famiy_guy_season_6.pdf
    • https://cdn.shopify.com/s/files/1/0432/6627/7534/files/65360316451.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/befewifavuzi.pdf
    • https://cdn.shopify.com/s/files/1/0438/8116/9051/files/2016_subaru_outback_maintenance_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/95271252847.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/53908854152.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/ziwodukujaluladiludu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/kalnirnay_calendar_2020_august.pdf
    • https://cdn.shopify.com/s/files/1/0439/7511/4910/files/nelafivifof.pdf
    • https://cdn.shopify.com/s/files/1/0434/3988/2402/files/xigujenaxivuzumenuzenop.pdf
    • https://cdn.shopify.com/s/files/1/0435/5892/8545/files/blancanieves_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0429/6926/8373/files/zitefijiwijilil.pdf
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/50196977086.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_off00007580.bin
71ec816f0fd9ae179ac21891a39044160f21e7b2d24d1d643093dba00cf8f50d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7580 5584 bytes
font_01_sfnt_off0000887a.bin
478bfc2831d9254637c8001c79a183d7cbcce82b2034900acf7146e1a5536724		 pdf-font-stream PDF embedded font (sfnt) at offset 0x887A 11012 bytes
font_02_sfnt_off0000ad8c.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD8C 4324 bytes

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