Malicious PDF — malware analysis report

Static analysis result for SHA-256 567c242179742e8c…

MALICIOUS

PDF

89.3 KB Created: 2021-07-01 11:32:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 10e189ba79795be99d935abe719181b0 SHA-1: ec139930170db89fa7f61dd9cab6b9f39d2f9c9e SHA-256: 567c242179742e8cfe14365bebe688f63aa721045cec4540085ffcc2d78f5a10
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ML classifiers and ClamAV, and exhibits characteristics of an advance-fee scam lure. It contains numerous links pointing to potentially compromised websites, suggesting an attempt to redirect users to malicious content or phishing pages. No scripts were extracted, but the presence of multiple external URIs and the scam lure indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b6e91ec46---83076061976.pdf
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/4l69bk1f5du7ggjisf9lral180/vutekajipagutebu.pdf
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/4u6ldsich361tfl6201le1plq4/51434179286.pdf
    • http://kardelendalgicpompa.com/uploadfiles/file/pifejukololuxari.pdf
    • http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/4f4b469a053a207cd877d1e09a7708f8/14297820681.pdf
    • http://klpa.net/userData/board/file/93711756101.pdf
    • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/823c1b73001396467bad79ebb8b652a7/zaxisokusepoputizaw.pdf
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/507a8a6c02a3c69b8aeb64bb10097ab2/97654615166.pdf
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/2vi4lo45m3oa83eldb2jgdmkev/xodedudafivezopasofep.pdf
    • http://champagne-marc-chauvet.com/images/files/3693292743.pdf
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f862051dd2---jiwatesamilapazebozemiju.pdf
    • http://lamorenj.com/userfiles/files/guganafinazewokatujup.pdf
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/jab1v42vinntj3hd87qjhrchn1/66528389522.pdf
    • http://espacioschillout.es/images/admin/file/31726181225.pdf
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b3fc78ccc---66920120263.pdf
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/aprpk9k4q0vsb5fp5r63c27brp/diburamirosobilepimewex.pdf
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b5af418d7d---rebizalasilavenu.pdf
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/7c0f258f6d988de3ab7dedcb6ae8e8e2/forukevuxotobiwudomeg.pdf
    • http://royalwedding.jp/images/blog//file/13004565565.pdf
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c141ef433---bagunus.pdf
    • https://transmar.biz/ckfinder/userfiles/files/27036227188.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=theories+of+auditing+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/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa27.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA27 16792 bytes
font_01_sfnt_off00011239.bin
1658ef3d8ca37ad6b362320781f99460863bfb62ea41a5368d48bbf0864eccfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x11239 17568 bytes
font_02_sfnt_off00013fc0.bin
75470dae6bc227d4fb0341769d1609d72f027200abb3cec44e4005b7792272ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x13FC0 10792 bytes