Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8e332c47c4eb41…

MALICIOUS

PDF

64.7 KB Created: 2020-03-08 07:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: bb9c46f84e673cc6010fa22c2bd3582e SHA-1: 043c3d1dc906b01410e79081b6097d2cacea3168 SHA-256: 9e8e332c47c4eb41703e8582470fec34df2d40416366b848a818217c9eef8912
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, contains text suggesting it is related to synonyms and antonyms, likely a lure. The primary attack pattern involves directing users to numerous external URLs, potentially for SEO spam or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://juicyscoopobsessed.com/uploads/1/3/0/8/130813658/130813658.html#synonyms+and+antonyms+list+in+english+hindi PDF link annotation
    • http://olybeescoffee.com/uploads/1/3/0/6/130604459/futobelin.pdfIn PDF document text
    • http://morlok.com/uploads/1/3/0/8/130874220/zukefusutekarozifi.pdfIn PDF document text
    • http://jacobsa.com/uploads/1/3/0/2/130270945/11c13.pdfIn PDF document text
    • http://immediate-insight.com/uploads/1/3/0/7/130738512/f82e131c39b484e.pdfIn PDF document text
    • http://harmonscustommadegrills.com/uploads/1/3/0/7/130775294/1602665.pdfIn PDF document text
    • http://graysgreenclubofamerica.org/uploads/1/3/0/6/130604892/buvediboro.pdfIn PDF document text
    • http://morbid-obesity.info/uploads/1/3/0/2/130289702/rizilijutek.pdfIn PDF document text
    • http://thedreamoilshoppe.com/uploads/1/3/0/4/130488574/libugegilomaba_veselan_sagikuv.pdfIn PDF document text
    • http://my-genuine-life.com/uploads/1/3/0/8/130814933/ceb287cc42dc.pdfIn PDF document text
    • http://netballinthecommunity.co.uk/uploads/1/3/0/6/130621119/2623384.pdfIn PDF document text
    • http://shhugarshop.com/uploads/1/3/0/2/130289158/xusoladabo_tikiminedakele_gofamejijerosa_ropofelus.pdfIn PDF document text
    • http://mail.transitplatz-nein.ch/uploads/1/3/0/7/130776533/tufupegabu.pdfIn PDF document text
    • http://shop-msdesigns.com/uploads/1/3/0/6/130604488/5283125.pdfIn PDF document text
    • http://bairdsandthebeesca.com/uploads/1/3/0/3/130313504/pakusetowigusowura.pdfIn PDF document text
    • http://drinking-frisky.com/uploads/1/3/0/5/130551335/5357408.pdfIn PDF document text
    • http://keyluxrealtygroup.com/uploads/1/3/0/4/130476152/374b975.pdfIn PDF document text
    • http://ashleyksanchez.com/uploads/1/3/0/6/130639750/6852529.pdfIn PDF document text
    • http://www.emergingbrandspartners.com/uploads/1/3/0/6/130639945/4ad868788d9e0.pdfIn PDF document text
    • http://leahphillipsmusic.com/uploads/1/3/0/2/130274338/nuwiderepi.pdfIn PDF document text
    • http://www.mynutrition101.com/uploads/1/3/0/2/130287547/povipotadoladin.pdfIn PDF document text
    • http://trustedfinancialpro.com/uploads/1/3/0/6/130620375/wegogibew_julib_ranabeketibegij.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA470 7540 bytes
SHA-256: 48a3b41772d2229987736ff6de791c626d2b133a5fc9e21c5b86e5263bad68c4
font_01_sfnt_off0000c19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC19E 18064 bytes
SHA-256: 333a238e1e522c4c7fd4fc6b6c387715d00ba3a2e7dc3e5bbbbbc018646a4457

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