Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc08de1b4c905779…

MALICIOUS

PDF

200.7 KB Created: 2021-04-20 02:28:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b55632633498aa709059b20c67a01ff SHA-1: 2c86027ab124d508f4a64fb6866311dce3d9c467 SHA-256: cc08de1b4c9057796b7d003cb6ccb2103c0bbda5f903f73eed318ccf2bd7c340
144 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a lure for an advance-fee scam, specifically mentioning invoice or payment language and prize notifications. It also contains an embedded URI pointing to 'zajinet.ru', which is likely part of the scam's infrastructure. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely involving a phishing or trojan payload delivered via the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://zajinet.ru/strik?utm_term=vw+service+center+hours
    • http://rabiwitijif.medianewsonline.com/2417385508.pdf
    • http://segaruzobuguses.scienceontheweb.net/aes_algorithm_in_cryptography.pdf
    • http://kalekoneta.iblogger.org/how_to_cook_pickled_brisket_in_slow_cooker.pdf
    • https://zuduberojep.weebly.com/uploads/1/3/1/3/131398404/dexavi_gebijizowixo_noruv.pdf
    • https://tenanetudoji.weebly.com/uploads/1/3/4/2/134266315/pezizebo.pdf
    • https://static.s123-cdn-static.com/uploads/4419645/normal_5ff2ab623d2d5.pdf
    • https://xabonawof.weebly.com/uploads/1/3/5/9/135965837/3812403.pdf
    • https://cdn-cms.f-static.net/uploads/4407988/normal_5fe824664d57c.pdf
    • https://cdn.sqhk.co/nifijagik/2ujb9if/nupawegulitasa.pdf
    • https://cdn.sqhk.co/wadelovelo/ydjgMib/30343877455.pdf
    • http://mamuzomilap.iblogger.org/79516498762.pdf
    • http://silewugebed.scienceontheweb.net/audyt_finansowy.pdf
    • https://static.s123-cdn-static.com/uploads/4481675/normal_5fe4fd45304c9.pdf
    • https://cdn-cms.f-static.net/uploads/4413011/normal_6044713de60c6.pdf
    • http://fiziwafofekaku.mygamesonline.org/72096869993.pdf
    • http://losopefopamusoz.sportsontheweb.net/42400591131.pdf
    • https://dodukitomot.weebly.com/uploads/1/3/1/4/131407143/josesemigegite_sonog_minuwexaxido_mefilu.pdf
    • https://cdn-cms.f-static.net/uploads/4449392/normal_60462125c0ffd.pdf
    • https://nogisapu.weebly.com/uploads/1/3/1/4/131453993/siperoje_vodudukenutox_javomaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dimonejoxu.rf.gd/76466583528.pdf
    • http://difedomuki.epizy.com/kiwanobi.pdf
    • http://vawerudarasikow.myartsonline.com/metujube.pdf
    • http://pikubub.onlinewebshop.net/how_to_do_the_google_thanos_trick.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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002dcb0.bin
b5cd163e406d7fb93ee2bc1df02b4784860f04c6e88ae48ea930ff4068da21e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCB0 4764 bytes
font_01_sfnt_off0002ecfb.bin
9dd4f7cec21162bcf2816c6a50270d237d5eaee47c0a65c86e1a9bef134656bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECFB 11716 bytes

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