Malicious PDF — malware analysis report

Static analysis result for SHA-256 800c4a583ec97eec…

MALICIOUS

PDF

36.8 KB Created: 2020-08-20 00:37:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ec9ca0c4b0e9fe2afc5f9650f5af9d0 SHA-1: d5a166c825db51fe1896068429ea165089d1c9b9 SHA-256: 800c4a583ec97eecff9ac511b07d4395987ba180ad57122d151b2c3d8ade5688
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=dls+2019+profile+dat+hack'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0437/4921/2309/files/resmed_s9_clinician_manual.pdf'. The presence of a 'download button' heuristic further suggests a social engineering lure to trick the user into clicking the malicious link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dls+2019+profile+dat+hack
    • http://files.blissfulhazearomatherapy.com/uploads/1/3/0/7/130740211/9511e6852b549.pdf
    • http://files.adamsmetaldetectorsonline.com/uploads/1/3/0/7/130776444/5771517.pdf
    • http://files.jeanstandmeministries.com/uploads/1/3/1/3/131398177/wubufa-vegisigikof-wezovalaj-xupigawolajolif.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/resmed_s9_clinician_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/1248/8348/files/chuyn_file_sang_jpg_bng_foxit_reader.pdf
    • https://cdn.shopify.com/s/files/1/0428/7122/6534/files/bumbleride_indie_manual_2016.pdf
    • https://cdn.shopify.com/s/files/1/0440/5736/2597/files/rabuwozijolexopotabajim.pdf
    • https://cdn.shopify.com/s/files/1/0430/0383/8615/files/java_card_class.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12909571685.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80170273674.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/49139541760.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/birizakidunupujudexi.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_off00005044.bin
05997ff98be06eaec080d81ea33f2c7c0aa5e66e669baf7043cff82030ab3158		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5044 5788 bytes
font_01_sfnt_off000063e9.bin
09e0d25b2d7fea7c0924a9e651a5caaf2a9fcf3ae490f9548572d1ceeabab4e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63E9 10180 bytes

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