Malicious PDF — malware analysis report

Static analysis result for SHA-256 127fd118b360d742…

MALICIOUS

PDF

93.5 KB Created: 2021-06-28 08:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f2bfff4b911e9b1ad1eaa5a538a205ab SHA-1: b2f5f624ee729a8faf06d61eedfd0608a49e2158 SHA-256: 127fd118b360d7424323564d099708abae452291e9a6f107a2421e448487c2e2
196 Risk Score

Malware Insights

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

This PDF document is classified as malicious by ML models and ClamAV, exhibiting characteristics of an advance-fee scam. It contains numerous links, many pointing to compromised CMS upload storage, suggesting an attempt to redirect users to malicious content or further stages of an attack. The document's structure and link farm indicate a phishing or scam attempt, likely to trick users into downloading further malware or divulging sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

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://vieclambanhang247.com/upload/files/92355811275.pdf
    • https://kajariaadsevents.com/admin/uploads/file/dozejonipovawomiwupiwex.pdf
    • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/c091cdc47c310d6eb5777da113f639f1/45403741326.pdf
    • http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc0000ee75---64346548614.pdf
    • https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/3e8d5aa78a1bde918213cbd4f37ca049/53588921686.pdf
    • https://led7.ru/file/72943047478.pdf
    • https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160970020778e8---993141573.pdf
    • http://botosani.ro/img/uploads/file/kurapekemagikefudabizoto.pdf
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/98bc76202a4484b1d2c12caa0f5f48de/xixetavijiner.pdf
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160927b6be0814---80973718609.pdf
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/pik7f5e3gnb6no4gu1kaupmtv5/tuvasu.pdf
    • https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/7iioijlof3efq4t4liuj3pl463/24591646871.pdf
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/g04q5oqe90chvfkiqgvcs0v60i/patiziliwuzanufi.pdf
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/615843a066462d392047052061483ea5/kinikidewabivaputexe.pdf
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/0b1a5da939e471ceac459fcf98318966/fowoxoxukuj.pdf
    • http://csptech.net/admin/userfiles/file/kefuwepopol.pdf
    • http://hilimall.ae/uploads/files/95719219514.pdf
    • http://leinerpakgelatine.com/survey/userfiles/files/36668046125.pdf
    • https://alzubidi.com/userfiles/files/52605532336.pdf
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609e339b951f0---vijetepopokositofeb.pdf
    • https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/i3k64974bs9m8gmqqva4jt9q0d/wuvalobogimowuza.pdf
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/53ae14540356b8c99b40fd325188321e/96357639049.pdf
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d768c05e85c---gifogoxigesimubetexamip.pdf
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c65784a08aa---nefuwuwijaj.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=blur+something+in+photoshop
    • 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_off00010ac8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC8 16792 bytes
font_01_sfnt_off000122df.bin
ab511c36dcdb4a6e8a967f192cdd96b2f878a029d1b30b5fc657eaffcf0fb967
pdf-font-stream PDF embedded font (sfnt) at offset 0x122DF 10692 bytes
font_02_sfnt_off00013b3b.bin
2925aa4a0248fe4239cc8b7c6c038f04a8e849487a116b4e17795058dc0143e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x13B3B 17408 bytes