Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccbf5669c467f3d…

MALICIOUS

PDF

77.3 KB Created: 2021-03-25 21:37:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 307e85f490d93a7f8441fc19745f30b4 SHA-1: 24fdb6a046bde4de23d92a1fd04c516ffb6693a0 SHA-256: cccbf5669c467f3ddcd171a6e3704657e51a27bb5f2e661232342313dcb435e0
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple external links, including one identified as a potential lure for advance-fee scams. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of numerous URLs suggests the document is designed to redirect the user to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://mezovuduw.ru/wix?keyword=running+randomized+evaluations+a+practical+guide
    • http://erogan-oficial.site/48259905752jxj88.pdf
    • http://prosucre.pro/69233509448zacmx.pdf
    • http://sallehub.xyz/49401576835z1otr.pdf
    • https://cdn.sqhk.co/pezolaje/l7gUjhN/lukesuwudogog.pdf
    • https://nunamifeko.weebly.com/uploads/1/3/2/7/132740424/zidijowoka-kabugororaz-taxalov-kujujuxasip.pdf
    • http://busforpay.online/1557511186icied.pdf
    • http://iqecoportal.ru/86413935470u7tw1.pdf
    • https://cdn.sqhk.co/zunowexafa/bjYtVbX/maximum_net_carbs_for_ketosis.pdf
    • http://fastpysystem.online/14696967041poxqi.pdf
    • http://899themes-demo.ru/623950392480vx8u.pdf
    • http://bilkan.fun/31835293845jct4r.pdf
    • https://lasebotoxuxuxir.weebly.com/uploads/1/3/4/7/134729765/kifojuwogu-xeluzaxotonab-xajipadib.pdf
    • https://fozafilamo.weebly.com/uploads/1/3/4/3/134314768/9333b.pdf
    • http://meine-gebuhrenfrei.com/wigezasilenipiyj8wi.pdf
    • https://cdn.sqhk.co/vakanaju/8wz2Jhf/1116862912.pdf
    • https://doruxajowivabog.weebly.com/uploads/1/3/4/8/134870444/kisizeki-kuzigekutuko.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b54663a3-ff9d-4122-b75c-69b71428c9b0.filesusr.com/ugd/cfa91a_b045b051ca484d298853d936deeef57a.pdf?index=true
    • https://76ed6b59-b034-43ac-b949-e1c08f76e3cb.filesusr.com/ugd/ee6100_b22767a38e414a38ab64b710ef27e82b.pdf?index=true
    • https://5f8b0e40-2141-4341-98ab-6145db4b8156.filesusr.com/ugd/2072cd_9b361df73ab44a1aa3be12016ff1c4c3.pdf?index=true
    • http://filawobabadi.epizy.com/5_proofs_of_gods_existence_by_st._anselm.pdf
    • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_c87ebb95656047388e71afee23deb2e1.pdf?index=true
    • http://lefigop.rf.gd/administrao_financeira_e_oramentria_hoji.pdf
    • https://2daccc73-8708-4113-a26a-4f38906335d9.filesusr.com/ugd/f65175_4baec30be7364036931e3fdc65ed5f64.pdf?index=true
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef0c.bin
9b86f4050e8895faf73f229942dd7005ac3d354040eb3b2de2b281810299395c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0C 5508 bytes
font_01_sfnt_off000101c8.bin
c7fa5d69ffa76cb09dc3ed2e9f1d8548988df4a7b05d4f99d4c7d2da135392b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101C8 11480 bytes

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