Malicious PDF — malware analysis report

Static analysis result for SHA-256 a00c55947e13db98…

MALICIOUS

PDF

48.2 KB Created: 2020-08-19 01:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f55e7de3a12def0e1a913412604cc653 SHA-1: 4108d687eadbf6d0c26665f4802005a1679d3021 SHA-256: a00c55947e13db98e863e0461413d2e7841aedd9ba7876041ba1f84209e71b0f
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm, with many links hosted on Shopify, suggesting an attempt to distribute content or lure victims. The document also contains an MFA lure, indicating a potential credential harvesting attempt. No scripts were extracted from this sample, but the presence of multiple malicious and suspicious URLs strongly suggests a phishing or redirection campaign.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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
  • 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=bohemian+rhapsody+partitura+piano+pdf
    • http://files.impact2success.org/uploads/1/3/2/3/132303373/nujepodag_lowozusizu_vulezo_suturazapedi.pdf
    • http://files.atrc-spc.org/uploads/1/3/2/3/132302749/8906654.pdf
    • http://files.dancetolifestudio.com/uploads/1/3/0/7/130776445/1434969.pdf
    • http://files.fccira.org/uploads/1/3/2/3/132303082/48f60f40b0e5.pdf
    • http://files.stain-goed.nl/uploads/1/3/1/1/131164556/gulebovozusi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/vepokexulixidedapuvoja.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vojinanekarab.pdf
    • https://cdn.shopify.com/s/files/1/0437/4419/8805/files/28032263471.pdf
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/deux_arabesques_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/rhizopus_arrhizus.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/fexuxevubikapubox.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/kosujoso.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/jexolixiveraw.pdf
    • https://cdn.shopify.com/s/files/1/0437/0841/6168/files/applications_of_derivatives.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_off00006fec.bin
ccaae4dce536df036ac42a5cdabc48d79b0055179ce9d986196c29192dbb074e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FEC 5284 bytes
font_01_sfnt_off000081b7.bin
77d32e64704e9acf10a5c1d8de7602371e0fe99a98f1c6b11c73344757338cf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B7 10580 bytes
font_02_sfnt_off0000a5d0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5D0 4324 bytes

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