Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c3474a2327cc737…

MALICIOUS

PDF

41.0 KB Created: 2020-03-15 13:32:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4b2b506cb47a4134e92074008bdc94c4 SHA-1: f73fc8a70fa8c4e1e5c57cecf70bcd7d768335c0 SHA-256: 9c3474a2327cc7370c133b28b4cc0092b223117f518aba9bb9adb84deac2c824
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous external links, identified as a PDF_SEO_LINK_FARM heuristic, suggesting a link-building or spamming operation. The document body, though partially corrupted, contains text related to 'website templates psd free 2017' and the PDF's creation metadata, which aligns with the lure of providing free resources. The presence of external actions and parser-evasion structures indicates a deliberate attempt to obscure the malicious intent.

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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://adsl-63-204-18-9.benefitplans.org/uploads/1/3/0/9/130968913/130968913.html#website+templates+psd+free++2017
    • http://trophypointcontracting.com/uploads/1/3/0/4/130435774/zopolipaxizaxet_kojep_mizupo.pdf
    • http://birthandbabiesoahu.com/uploads/1/3/0/2/130288381/d654fd04a63c4.pdf
    • http://cancelatimesharenow.com/uploads/1/3/0/6/130639257/8cc9fac2.pdf
    • http://bonzengacollection.com/uploads/1/3/0/4/130489144/4988274.pdf
    • http://teamantoinette.org/uploads/1/3/0/2/130272905/wutixowim.pdf
    • http://jamieowenactor.co.uk/uploads/1/3/0/5/130551366/tejemuditeduwa.pdf
    • http://nybestdentist.net/uploads/1/3/0/5/130588708/4867811.pdf
    • http://daniellesmakeupcreations.com/uploads/1/3/0/6/130639656/274016.pdf
    • http://www.pomawanian.com/uploads/1/3/0/4/130488565/lejiwi_rexima.pdf
    • http://educatedway.net/uploads/1/3/0/7/130738821/60cd407c3a14.pdf
    • http://alchemystejuice.com/uploads/1/3/0/4/130477048/4173608.pdf
    • http://techstyles.shop/uploads/1/3/0/6/130620399/7613336.pdf
    • http://ruthwildwood.com/uploads/1/3/0/3/130313748/popimalexote.pdf
    • http://nextgenproperties.net/uploads/1/3/0/3/130313194/zuvuzafap_zezavebudifal_zobetena.pdf
    • http://crystalreflectionsphotography.com/uploads/1/3/0/6/130621411/38e800.pdf
    • http://semboards.com/uploads/1/3/0/7/130738892/fd375a5856.pdf
    • http://senhordasaulas.com/uploads/1/3/0/4/130490609/abebee326f1182d.pdf
    • http://wino.club/uploads/1/3/0/6/130621475/5c429.pdf
    • http://www.msgarcia.com/uploads/1/3/0/5/130590689/24661bf9.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007825.bin
19725119f5d2a2bfdb2ac7ff428316ad406f393d3f016b3a17ba07efdff37036		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7825 7940 bytes

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