Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6bff8fcc5d6c24c…

MALICIOUS

PDF

39.1 KB Authoring application: Solid Converter PDF
MD5: b0fce4de09d98e0fc8ca90fa41801367 SHA-1: e06625478ae0894fe0bd09ad6740c8174e93ea54 SHA-256: c6bff8fcc5d6c24c8dcc500078264c7ca687fbf05ced71c244c4407ae250d2d9
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external PDF files. The SE_INVOICE_LURE heuristic indicates the document's content is designed to trick the user into clicking these links, likely for phishing or malware distribution. The ClamAV detection further confirms its malicious nature as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, but the extensive link farm suggests a downloader or redirector pattern.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://tw-tech.net/uploads/1/3/0/5/130540683/7b5785474c.pdf
    • http://countitalljoy.net/uploads/1/3/0/6/130639673/ravuvujepewoga.pdf
    • http://mrk.live/uploads/1/3/0/2/130270847/belijolotuw_muluzededirasa.pdf
    • http://weitzfitness.com/uploads/1/3/0/2/130270834/7165e67322a4196.pdf
    • http://verrotech-status.com/uploads/1/3/0/6/130620483/1d68afb18f.pdf
    • http://jljohnsonproperties.com/uploads/1/3/0/9/130969637/xizififodufin.pdf
    • http://karlhidden.com/uploads/1/3/0/6/130620865/587332.pdf
    • http://nude722.space/uploads/1/3/0/6/130604359/javunewaredufo.pdf
    • http://teamryoku.com/uploads/1/3/0/5/130539179/1955670.pdf
    • http://bestofbaliadelaide.com/uploads/1/3/0/2/130288542/ea282788a8252.pdf
    • http://platinumpoolsandpatios.com/uploads/1/3/0/8/130874258/071bc79f.pdf
    • http://hostmaster.habl.cc/uploads/1/3/0/8/130874164/tojevejozemof-famivoxotok.pdf
    • http://allatjanster.online/uploads/1/3/0/3/130323997/robed_lawazu_pofitonaxew_fofax.pdf
    • http://mail.up4everything.com/uploads/1/3/0/2/130271030/tozofebu_ruvituz.pdf
    • http://workingwoundedgames.org/uploads/1/3/0/4/130476564/1b6de.pdf
    • http://goget.social/uploads/1/3/0/3/130324136/woteloxozun-pigupusatamelo.pdf
    • http://figgylicio.us/uploads/1/3/0/8/130813732/bobifamigip.pdf
    • http://allentertainmentuk.com/uploads/1/3/0/5/130539652/87126.pdf
    • http://f8thdesigncups.com/uploads/1/3/0/5/130539170/jixomokuzekevopuj.pdf
    • http://spinningred.com/uploads/1/3/0/6/130639140/gedolediwemedipuv.pdf
    • http://plumbersupplies.net/uploads/1/3/0/6/130605397/cde0660ebd6a.pdf
    • http://wastedserenity.com/uploads/1/3/0/4/130475918/42a19a90d512bb5.pdf
    • http://adsl-63-204-18-58.benefitplans.org/uploads/1/3/0/7/130775118/9268923.pdf
    • http://softpoint.ch/uploads/1/3/0/2/130289569/c39a0bcfa2.pdf
    • http://acpstudios.com/uploads/1/3/0/4/130488968/wukimupobin.pdf
    • http://6wqmbr.bdgct.com/uploads/1/3/0/3/130323889/130323889.html#affairs+cloud+static+gk+capsule

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032b4.bin
bfc7880793bd17e5a140bac4d74c55022ffd5a07781d7f88a26ad37ef18cd6ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32B4 8612 bytes

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