Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcd0dba52fdc7c2e…

MALICIOUS

PDF

48.4 KB Created: 2020-08-22 10:17:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 017bf138d1706c8c19e5d00203c5c39a SHA-1: cb26429dc28b496ee15857f078fc7f4faadf3c2c SHA-256: dcd0dba52fdc7c2e8a4325957ce3e9db1f7d4b9090274f2be231d80375741656
136 Risk Score

Malware Insights

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

The PDF contains a lure related to bypassing download limits, which is a common social engineering tactic. It embeds numerous links, with a critical finding indicating a redirect to known malicious infrastructure at 'ttraff.com'. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attack designed to lead the user to malicious content.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/pify?keyword=how+to+bypass+mega++limit+2019
    • http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.pdf
    • http://files.teenchefjordan.com/uploads/1/3/1/4/131453679/fumutegufegamogal.pdf
    • http://savenirul.passsetcrush.com/uploads/1/3/2/6/132681763/1094066fe29.pdf
    • http://baduvep.neiljohannsenart.com/uploads/1/3/0/9/130969332/xapubumikofites_vanadezo_sakejatapes.pdf
    • http://kipevov.driver-guider.co.uk/uploads/1/3/1/4/131406013/badifeziri-fivalojizev.pdf
    • https://cdn.shopify.com/s/files/1/0433/4954/1017/files/39531406181.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/zovarowekisusoxojuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/conduction_system_of_the_heart_and_electrocardiography.pdf
    • https://cdn.shopify.com/s/files/1/0438/9647/1707/files/pilob.pdf
    • https://cdn.shopify.com/s/files/1/0436/4160/2198/files/playstation_portable_wallpapers.pdf
    • https://cdn.shopify.com/s/files/1/0428/5674/3079/files/95433614588.pdf
    • https://cdn.shopify.com/s/files/1/0429/6766/2748/files/rafanewexijalexewuwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/19737916335.pdf
    • https://cdn.shopify.com/s/files/1/0432/4016/1435/files/x5_bluetooth_car_kit_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/528084386.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3205/files/soduxeveto.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_off00007166.bin
d2304cf925ecc565f13b98d6bf71f84bfff2dce8935b0b0489ce6a378d7fd8be
pdf-font-stream PDF embedded font (sfnt) at offset 0x7166 5504 bytes
font_01_sfnt_off00008437.bin
75ecb85f591981558ddb2f3cf12318cdff495f674462aa2e328c7a0f3b2544e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8437 10084 bytes
font_02_sfnt_off0000a6b8.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6B8 4324 bytes