Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c9ab229366e284…

MALICIOUS

PDF

81.8 KB Created: 2021-03-18 11:39:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a1d21ccf3f00a53ae69582bc178ab550 SHA-1: 0d6d991b361262c0d5ff674cc15afbb7ca875b36 SHA-256: 34c9ab229366e284e98f98f59f356e24105809bda8cf1b39d34bb81544d0c3e0
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely intended to trick the user into downloading a malicious Android application. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords related to the URL, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=rise+of+berk.apk+hack.info PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410206/normal_60308d3109521.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423133/normal_60370c9c94608.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471686/normal_600256d95f58b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368224/normal_60506b30a1258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414353/normal_6031faf470a4d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391909/normal_5fef952ce3b05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410000/normal_60140275e6e9b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480173/normal_5fe2b1547fb5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389090/normal_6044fcff48a1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478664/normal_5fee6155209c5.pdfIn PDF document text
    • http://buxozadogaro.22web.org/2020_buick_enclave_owners_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc90c1d96235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408851/normal_6049bdf50ecf7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/0569907e-e857-425e-91dd-0bdde59251b8/zowifimuniforufedivotel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/126e47c8-c97e-4603-82a2-64562908720a/najawelotefegotereda.pdfIn PDF document text
    • http://rituruve.epizy.com/fudafiwaxalipu.pdfIn PDF document text
    • http://fikexole.rf.gd/hitchhiker_s_guide_movie_trailer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1a1a6ba-e041-4ae3-a2d3-d7d66fbb86e1/vitexejojajekesovuzerorej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01f2e27d-8714-4458-95a4-28d7651fd478/49392787660.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3e43b7f-f90b-4b4c-aee9-ff80d11af83c/65888090981.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF5 5020 bytes
SHA-256: 77609ef6057337bc4335eff89050d254bd9f9d3388580b9c3de0d0c4fbfc6147
font_01_sfnt_off0000fbf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBF6 22204 bytes
SHA-256: 723bf5f411665cdef53b03d7e18131b14ad59cca5a4be925a4a84bff7ca23755
font_02_sfnt_off00012c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C1C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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