Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae0222601e410c7c…

MALICIOUS

PDF

79.6 KB Created: 2021-03-23 23:41:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cdffac1ae4c34ff88941489f7e421c3 SHA-1: 6fb19e4858d8952da330ef8d5d82322754bf8396 SHA-256: ae0222601e410c7c7bc4ef95b6f8531c7993b1aa66a74fedb7311656e9db3c55
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. It contains an embedded URI pointing to 'seumenha.ru', which is likely a phishing or malware distribution site. The document body, though partially corrupted, contains text related to a product, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/strik?utm_term=ozark+trail+6+person+dome+tent+set+up
    • https://cdn-cms.f-static.net/uploads/4502268/normal_601723d78d3f8.pdf
    • https://cdn-cms.f-static.net/uploads/4384316/normal_60265dee60b57.pdf
    • https://cdn.sqhk.co/begokaxawip/dvVjaif/kanedax.pdf
    • https://cdn-cms.f-static.net/uploads/4405641/normal_6011de9f5064f.pdf
    • https://cdn.sqhk.co/zezetemirag/ohb0ovR/hello_kitty_nail_salon_yiv.pdf
    • https://cdn.sqhk.co/tuwesedujila/bdFjfsp/78312123265.pdf
    • https://cdn.sqhk.co/gukisafuw/SticgfV/87026900155.pdf
    • https://cdn.sqhk.co/kibukumivu/3uzjJgj/lakugubedemarinasa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ba5eb0da-1b2f-4010-b136-2800aa68f8f2/nebitupeti.pdf
    • https://s3.amazonaws.com/tezofuretejom/49252614998.pdf
    • https://s3.amazonaws.com/jeromisixinolib/egyptian_cotton_sheets_lawsuit.pdf
    • https://uploads.strikinglycdn.com/files/d91d086f-be3a-4134-9e94-f2626ad75ee3/85991899139.pdf
    • https://s3.amazonaws.com/metubevozisul/27860322342.pdf
    • https://uploads.strikinglycdn.com/files/1d934ca0-caaf-4d25-b4a5-1ede13cc0317/how_does_thyroid_hormone_affect_bone_growth.pdf
    • https://uploads.strikinglycdn.com/files/fcf9451d-341d-4c46-80d9-962f5b880901/8698419939.pdf
    • https://s3.amazonaws.com/lososimap/avast_antivirus_app_free_for_android.pdf
    • https://uploads.strikinglycdn.com/files/ddd5c388-48f4-437d-98bf-0c215ac65422/52530114391.pdf
    • https://uploads.strikinglycdn.com/files/e3622410-957b-4079-9c54-efcd71fe0382/17287631322.pdf
    • https://uploads.strikinglycdn.com/files/bb94eddd-b7d9-4a7d-b4b4-ea18bba44c9d/adobe_photoshop_7.0_tutorials_in_hindi.pdf
    • https://s3.amazonaws.com/xakapudakadu/95763337410.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_off0000f7d5.bin
1385ece9df82da4031a5c524606897513ca5ceb73d1885a3fe625630d29e676b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D5 5400 bytes
font_01_sfnt_off00010a1f.bin
c6247ef74bad1ddc2bf916158ed97c0658e61f3ed4f1656cc6ac0ff2745d5872
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A1F 11536 bytes