PDF malware analysis — malicious · 2e0924090991a96b

MALICIOUS

PDF

79.4 KB Created: 2021-07-21 11:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: 3fc6a8a1f376a36596bbdb0f62f83c16 SHA-1: 859e951622c9c9142075b7332b7bb6285f80094e SHA-256: 2e0924090991a96bd75091d4b030bda83d80fc3c252b3da5b585bf976abfec4c

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of numerous unknown URLs hosted on these compromised sites indicates a likely phishing or malware distribution campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9949

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://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d82d930e922---59628218153.pdf In PDF document text
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/3lhe5995g59d4l68035r501mns/sidomiziwuzosupalit.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/xogaxexiwabokopezosigi.pdfIn PDF document text
- https://familienbilstrup.dk/userfiles/file/74435759093.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/9fa64485ad10d93c85f0eb70acf5fa72/muxiwew.pdfIn PDF document text
- http://rioairporttransfer.com/ckfinder/userfiles/files/miromaboje.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b041a2a9c0---5537518972.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160e4dd6b9e927---jibimoxopuvo.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/juaai5idbl2cgtj7d1lo0sjljp/pedivokodonogeruxoduji.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160853f5fa81d6---vufabulujipi.pdfIn PDF document text
- https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/b1dcf3842372b3facd2fd2495e74f66d/bubunez.pdfIn PDF document text
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071de4206c6a---kemekutasibaku.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/05a0co7m0kgc999ama9qmv4mbl/11764595144.pdfIn PDF document text
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/44a45d234df04b3cffbfda564cd5b93c/39310469626.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/m5ni5ahq4rmbvaa9btn4169455/9122363770.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a06cd501f90---33239971705.pdfIn PDF document text
- https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/10e224c41d80efab4e604a8839c54808/91799541617.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087a92adcfa1---82985089764.pdfIn PDF document text
- http://ritadas.in/userfiles/file/vapeba.pdfIn PDF document text
- https://foundryindia.org/userfiles/file/puforufarur.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096f2ecbb688---98173990746.pdfIn PDF document text
- http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/68117095299.pdfIn PDF document text
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/793acb84e0dcfd23452c057ba288475f/90155927617.pdfIn PDF document text
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16078c0527b591---43972027686.pdfIn PDF document text
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a5397e3f1ed---52925429237.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=s+and+j+engines+reviewsPDF link annotation
- 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_off0000d32c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD32C	17280 bytes
SHA-256: `0793f1d10d17fe2e6c6cfa5340a9e2fecd679b868feb974d24942077be826096`
`font_01_sfnt_off00010065.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10065	10516 bytes
SHA-256: `34021ca59739acafbea234999f050e7f842073f1e44062c2ba02789b04490593`
`font_02_sfnt_off00011836.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11836	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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