Malicious PDF — malware analysis report

Static analysis result for SHA-256 835e1f198c6ac956…

MALICIOUS

PDF

84.8 KB Created: 2020-08-31 15:43:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38a2f0848c160bcdf61de413554bfad6 SHA-1: 3a0b4227f34195e8e109509180af40738e3bcbb6 SHA-256: 835e1f198c6ac9562fffe3cd3a33687db456d8a14f5da5315fabc6d93c6e4e4c
160 Risk Score

Malware Insights

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

The PDF contains a heuristic indicating it's a lure for an advance-fee scam, specifically mentioning lottery/prize language and courier delivery requirements. It also contains a critical finding of a malicious redirector link pointing to 'ttraff.com'. This link is likely intended to lead the user to a phishing or malware distribution site.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=advertisement+video++malayalam
    • https://static.usrfiles.com/ugd/cec570_7666b35c618645d2906e3c3b699e5378.pdf
    • https://static.usrfiles.com/ugd/b8c837_138a41a3984743aea227988c9871ca9b.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a3ef07e97904202a80aa852f99cc785.pdf
    • https://static.usrfiles.com/ugd/d78803_fcd2e49632964e51a60b7d02fc7c7a18.pdf
    • https://cdn.shopify.com/s/files/1/0432/1706/0007/files/car_driving_games_3d_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8519/3621/files/59759157614.pdf
    • https://cdn.shopify.com/s/files/1/0437/1657/5383/files/fatal_peer_authentication_failed_for_user_xname_svc_account.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/all_video_song_odia.pdf
    • https://static.usrfiles.com/ugd/a18aa6_3350aaec15b8484f9349d1f06d2508e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_b11b58d3bf9745a9a4d485a727bd02b2.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_6d5e00d0d9f54a3587166d81bd854563.pdf
    • https://static.usrfiles.com/ugd/b8c837_f869c9e6f1204f20bb41cb2ded25ac0e.pdf
    • https://static.usrfiles.com/ugd/e8506d_1356ff645ed14b43be17ccf5bb6ae8e9.pdf
    • https://static.usrfiles.com/ugd/b98abb_e5d474d3d31d43ecb8d9a8b857bda341.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_off00010c71.bin
2d78e7c143100f7a7647ddbcd6ba911bb5f41528b9246a77e19aa023fdc547b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C71 5124 bytes
font_01_sfnt_off00011dcf.bin
72ee41f77962780ab748d0f193c409ce816b2f0310475e178eec5be8c1da7117		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11DCF 12480 bytes

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