Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b97a83439bdbc26…

MALICIOUS

PDF

88.8 KB Created: 2020-12-30 17:40:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 96907bc7d3d3950fe68ae75a045b4c63 SHA-1: eb9893360a5db0a6acd790db104f8789ddb3cc45 SHA-256: 2b97a83439bdbc26a80d5e5312317020ff6f61fdbbf48afcf937b7cdb64e47f1
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a domain that appears to be involved in distributing potentially unwanted or malicious software, disguised as a game download. No scripts were extracted, but the PDF structure and embedded URL suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffset.ru/strik?utm_term=ultimate+lion+simulator+free+download+ios PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4462038/normal_5fec01672a381.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422163/normal_5fa2e99f3a45b.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/TZ0wkLI/kolatifa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446286/normal_5fe8a846ddd68.pdfIn PDF document text
    • https://cdn.sqhk.co/kurinunuwor/ig4geha/954106931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370528/normal_5fb8a9165ead0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aebd914c-d708-45e7-9c72-31747ecb7c4b/beastie_bay_layout_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/hot_pink_formal_dresses_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81f62103-7812-4c9a-ab13-508e048755af/finuzasitejewifedadojez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0a58a7d-b005-4871-a35e-98abddd75fbb/kamoralejirisedizakafe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ad93afd-d124-4820-b4b1-d656fe44b3cb/vofoxubepuzowenebud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a383164-d9ac-4606-9754-d432a8eae378/91039889119.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14a14ae8-7567-453f-9687-f89ba40f02a3/jukaronobidixovex.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/13354788438.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0DB 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off000100cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CF 5136 bytes
SHA-256: 54896631ae75f734ad739ba8a10501c7f238436f9b05574d28982d336571433c
font_02_sfnt_off00011239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11239 2284 bytes
SHA-256: d64340b15287c056ecc73f7633c35ed589b75f78d9041c43f06e2711d127cdd4
font_03_sfnt_off00011c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C78 10592 bytes
SHA-256: ee240faf303c777994c878c3d456465c58ffee80c99d3c47a820c42e462bc0d3
font_04_sfnt_off000140a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140A0 16036 bytes
SHA-256: 52db30b66cfb76898988bc7c6ed152514c301740808ab95bec9c68e49df23550