Malicious PDF — malware analysis report

Static analysis result for SHA-256 b437795e8e43b8d1…

MALICIOUS

PDF

248.5 KB Created: 2020-08-23 11:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cecc85139ed7925225db69fcad0a717a SHA-1: 94f2a8b1d67885df79f0ef004efda08bdb9510a0 SHA-256: b437795e8e43b8d1849cdefaefc1f0a61d249facea5663040733842ee685065d
220 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1059.003 Windows Command Shell T1566.002 Spearphishing Attachment

The PDF contains a malicious redirector link to 'ttraff.com' which is a known malicious infrastructure. Heuristics indicate lures for browser extension installation and clipboard command execution, suggesting a social engineering attack to compromise the user's system. The document body, though heavily obfuscated, contains the malicious URL.

Heuristics 6

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=firefox+42+ftp
    • http://files.balancedsolegifts.com/uploads/1/3/1/3/131378950/sezalukubumox.pdf
    • http://files.ps111adolphsochs.org/uploads/1/3/2/6/132695805/c23b0320.pdf
    • http://jaxabo.whitetigermonthly.org/uploads/1/3/1/8/131871390/radepejabutubatak.pdf
    • https://cdn.shopify.com/s/files/1/0432/4301/2256/files/edgar_allan_poe_cuentos_macabros.pdf
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/gisapelak.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/wozegarila.pdf
    • https://cdn.shopify.com/s/files/1/0429/9276/3039/files/bamford_stroke_classification.pdf
    • https://cdn.shopify.com/s/files/1/0434/7641/8720/files/noxuneda.pdf
    • https://cdn.shopify.com/s/files/1/0435/5738/8440/files/reported_speech_examples_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6257/files/75866254966.pdf
    • https://cdn.shopify.com/s/files/1/0448/3442/2941/files/blockchain_tutorial_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9491/7799/files/69808446039.pdf
    • https://cdn.shopify.com/s/files/1/0431/7986/8309/files/clair_de_lune_sheet_music_for_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0446/6117/8521/files/can_you_speed_up_edgenuity_videos.pdf
    • https://cdn.shopify.com/s/files/1/0435/2226/1143/files/sotewokosutu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8308/8547/files/fairy_floss_machine_manual.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_off00038b06.bin
b177b423ad58ff6e3cd3274b06d86f2dae2e9164570e7f8aafcd5f259497f5bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x38B06 4720 bytes
font_01_sfnt_off00039b34.bin
43d3a6f1a21fade836549ac8803387f571ac28d45256ad71572c7a4d1d3363d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39B34 15628 bytes
font_02_sfnt_off0003cc4b.bin
74be5bc4d46f64e5c506ae1006f7022dc98ebf960e37c7bf417c2027ca73106d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3CC4B 1736 bytes

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