Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e97952ddbba8307…

MALICIOUS

PDF

94.9 KB Created: 2021-04-24 11:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 4c4b3b9d2c3a5cb3e5d1d23abfbe3051 SHA-1: f3fa6d98108146b602b4f536c53fb065c612bd07 SHA-256: 1e97952ddbba8307b2a3d9bd130867db77e170a7e23c45c521716c3f9f5aeaaa
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://ponafet.ru/strik?utm_term=quran+arabic+to+english+dictionary+pdf', suggests a phishing lure disguised as a dictionary PDF. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards the potential for malicious JavaScript execution or redirection to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/strik?utm_term=quran+arabic+to+english+dictionary+pdf PDF link annotation
    • https://pebogifi.weebly.com/uploads/1/3/1/4/131438694/2112053.pdfIn PDF document text
    • http://trycabinets.xyz/kowebovuxusudatusajubiwgx6i.pdfIn PDF document text
    • https://mevajivikupewog.weebly.com/uploads/1/3/0/7/130775189/ed78325accde7a1.pdfIn PDF document text
    • http://dobewobezusisof.iblogger.org/vusidoletenurawoberubawen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489615/normal_601421f57e2ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467007/normal_5ff14aea30f49.pdfIn PDF document text
    • http://discount50it.pro/allegiant_book_parent_reviewudnt9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391037/normal_5fc8fd43bb599.pdfIn PDF document text
    • https://bemafaparad.weebly.com/uploads/1/3/2/6/132681832/78ebd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466154/normal_6044cb19e1da4.pdfIn PDF document text
    • http://blancop.xyz/ar_15_sbr_barrel_length3ikml.pdfIn PDF document text
    • https://mobofapewapo.weebly.com/uploads/1/3/5/3/135399527/gebaroti-wuxime-wajaxezusebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/latitude_e7450_specifications_review.pdfIn PDF document text
    • http://wereguvepowu.epizy.com/66285148426.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/30383523484.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/android_studio_buildtypes_debug.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/74970852222.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001339e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1339E 32856 bytes
SHA-256: b6c2091d73a9129b2dd807cacc02e59ac7fab2b68328c202881f1c915b724c9b
font_00_sfnt_off0000fce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE9 5720 bytes
SHA-256: 08295acbdda56c381adb3050a4f65e9d9e6d8ae790e6d759db6bc8c1063d8fea
font_01_sfnt_off0001104f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1104F 10504 bytes
SHA-256: 9b3e87e7a4118517d6699cc75eafef386ef72e557edc71670cc7eb19ad25351d

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