Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b0f4a97c8751e1…

MALICIOUS

PDF

73.7 KB Created: 2021-03-02 09:37:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b05b4dd09d0c91d72d7857852aa81622 SHA-1: 8357615a00df126d498927d9bd8f56fd23a31159 SHA-256: 46b0f4a97c8751e14fbf3d7b730ecfec9c1aeed3982d35906c29699339b1b6ef
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains a mass of external links, including a primary link to 'baarspo.ru' disguised as a search result for a game hack. The PDF structure and embedded links suggest it is designed to redirect users to malicious websites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://baarspo.ru/wix?keyword=angry+birds+2+hack+apk+2019 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369308/normal_5fe1b3425b361.pdfIn PDF document text
    • https://bimaruzo.weebly.com/uploads/1/3/4/5/134517483/6372916.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455198/normal_5fcdb27fe4e0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_6031376ee4660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404723/normal_602799cb789c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366660/normal_5fdfdb86e1e58.pdfIn PDF document text
    • https://tunibedexorole.weebly.com/uploads/1/3/5/3/135350281/wesuwubari.pdfIn PDF document text
    • https://roguraluvi.weebly.com/uploads/1/3/0/7/130776180/9883272.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485153/normal_5fceaf3210d9e.pdfIn PDF document text
    • https://wonelapafilujol.weebly.com/uploads/1/3/1/6/131606162/3532954.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462352/normal_601f0648d2883.pdfIn PDF document text
    • https://lodokevez.weebly.com/uploads/1/3/4/4/134476034/6fabc9f8a7c62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465924/normal_60224b6d1107c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413456/normal_601526f0c2108.pdfIn PDF document text
    • https://robigatif.weebly.com/uploads/1/3/0/8/130873787/bebekikewiraxoxakew.pdfIn PDF document text
    • https://supagerafigi.weebly.com/uploads/1/3/0/8/130874211/7515981.pdfIn PDF document text
    • https://bavanakeburosot.weebly.com/uploads/1/3/5/3/135302165/kelijosonito_gatuxesa_josinelemam_fesiwuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408461/normal_6028c4abbea0b.pdfIn PDF document text
    • https://vuterezupip.weebly.com/uploads/1/3/1/3/131380942/jasinu-sekisapolib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383805/normal_5ff65645bcb5e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379856/normal_5fe438cdc6d1f.pdfIn PDF document text
    • https://mipejefote.weebly.com/uploads/1/3/4/3/134356111/nelenonekikej-malunuribenemi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368495/normal_600453469a771.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e10b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10B 6080 bytes
SHA-256: bb6b6734e5f199851c673e719a382f1d4c93310278faa5cc5fe6651ce33cf9cc
font_01_sfnt_off0000f5bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BB 10492 bytes
SHA-256: b3dd5b6d6e265469ab0502d877f3bb78cd16356c19893822d083fb30577d527e

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