PDF malware analysis — malicious · 140b96cfbab5d296

MALICIOUS

PDF

88.4 KB Created: 2021-07-01 15:10:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25

MD5: 50592e50a1a042d41030c86ad552b14a SHA-1: 7c09ea937bad89c94402d8088ee95211bb486b0e SHA-256: 140b96cfbab5d2963ffded6f64db5e9f06c0b5d0eb2e06cdb64f2d735d563c69

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9835

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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 https://garglob.ru/uplcv?utm_term=why+a+dog+wags+its+tail PDF link annotation
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/1cbd083c57f89f0a637a1674d28c5d8a/diroruvezopawifuzudivi.pdfIn PDF document text
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/0e5e6545ecd0ae002abe12ee272cda24/71932841752.pdfIn PDF document text
- http://www.microsinusectomi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b69712c93---poxesumefarekanexagozafab.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16082fad06585c---74646058361.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/19gngeb8m0uue39hobtj7om25k/zejotasedesanip.pdfIn PDF document text
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca50760a3c---vowemodevel.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-6-29/20210629121434801264.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160ca629e571fa---79203435806.pdfIn PDF document text
- https://valve-toho.com/userfiles/file/zegegiduritinizozisaj.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/98d61ac7166487df01c4d91775dde395/xofegudixuj.pdfIn PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9a5fa87984---duzirileg.pdfIn PDF document text
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/2f04f3be924297d68c310a3b0dff4f14/62033522892.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609845258bf52---tixamofol.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/cf7c50c2184f3f606eb875b092490af0/99541111563.pdfIn PDF document text
- http://autodilykanka.cz/cmsimple/images/file/sojabowalirilisog.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b05e2798a16---xowagenadefotosezilod.pdfIn PDF document text
- http://ciskmv.com/css/file/pejamujirotebovopezebaza.pdfIn PDF document text
- http://amoy-art.com/Upload/file/fageluwivilolutopiwilema.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160873870c290d---poferudowegajubavalu.pdfIn PDF document text
- http://www.logomarcanet.com/userfiles/file/gimejeviton.pdfIn PDF document text
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/1609aadd715f96---gezosazotujegunogafimike.pdfIn PDF document text
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/bkpa85gl0cn6qv9a19dq6kdke7/vubap.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba4a62cbaaf---27148672369.pdfIn PDF document text
- http://tnslib.su/userfiles/files/demavigazeramav.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf23047d4e---tisarajow.pdfIn PDF document text
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1609b116ea572c---pujazalesupufopirewuwo.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f751.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF751	16996 bytes
SHA-256: `e9907498e1a57f93f87a490e5d77dc7f4afa1116431a70f288a14884b1591731`
`font_01_sfnt_off00012366.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12366	10384 bytes
SHA-256: `2ebe7633d6b7c03e8ac72a4c3b62ecbf402d2becaaed2f338ea83994fde84f36`
`font_02_sfnt_off00013ada.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13ADA	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.