Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcc16aedfe6700d…

MALICIOUS

PDF

84.2 KB Created: 2021-02-19 21:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 76e211289d68d7cc1a32bfa4aeb6dce2 SHA-1: 4b46d3215d04316f7435cb62ec0b812f4b1cbd49 SHA-256: 0dcc16aedfe6700d0392ed2b3f01cc5b1f1ed2e2567b46e5259538258b2a1970
166 Risk Score

Malware Insights

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

The PDF document contains a URL that masquerades as a movie download link, which is a common lure for phishing or malware distribution. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely intends to trick the user into downloading a password-protected archive, a technique used to bypass security scanners. The presence of external URIs and the ML classifier's high confidence score further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/strik?utm_term=perfume+the+story+of+a+murderer+full+movie+download+dual+audio PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444638/normal_5feaf53e27425.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386829/normal_5ffea4771d889.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392218/normal_6019dd70842cb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377656/normal_6000a0b3488ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416502/normal_5fdc6a93e421b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409623/normal_60037f7c73878.pdfIn PDF document text
    • http://kumazekewenow.22web.org/vofatokizilej.pdfIn PDF document text
    • http://siteznakomstv69.space/larifefimezug0dvsu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421201/normal_60233a0776df5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376879/normal_60164fa9028bf.pdfIn PDF document text
    • http://sawalaxal.66ghz.com/xefapew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dujexewemabak.rf.gd/69458242137.pdfIn PDF document text
    • http://polesirigileko.epizy.com/13514751149.pdfIn PDF document text
    • http://gobonelore.epizy.com/arsene_lupin_contre_herlock_sholmes.pdfIn PDF document text
    • http://nutimuratibuzur.epizy.com/bikaxutanakapodus.pdfIn PDF document text
    • http://pepebejawu.epizy.com/auto_rotate_android_p.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/4health_grain_free_dog_food_feeding_guide.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
    • 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_off0000d376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD376 3768 bytes
SHA-256: 59ed54c285853b09eb25d230e4c80157cf6de30e172a4728236ca5bb14624b40
font_01_sfnt_off0000e0ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FF 5400 bytes
SHA-256: dd1c913671bb68f99f0410815c74dcccf36f14e24c952b38a8572e35fb8001ea
font_02_sfnt_off0000f344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF344 2144 bytes
SHA-256: c858df80e9eda258b9315ea3cbd12405f70d652c1f75e838319c15eaab0fbd31
font_03_sfnt_off0000fd21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD21 12644 bytes
SHA-256: dd068f99bfc36e13dffbd43b2becadd96bbc8aa6104b0affc5b349b21da4d20b
font_04_sfnt_off0001263f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1263F 18248 bytes
SHA-256: 4271e19b4ca09db8f8aaac043e49c759107e021bbe20e679dbb684c6d235e98d