Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7ef030721d2831…

MALICIOUS

PDF

96.0 KB Created: 2021-07-17 06:08:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d60b23f7031644d4beaad77ab86578e3 SHA-1: 869485a73b23a0259067d8845c6894b0d6b1b7c2 SHA-256: ce7ef030721d2831e9ca48852e1c13712d72ab74cd9a9414e360dfb8a341a093
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan threat. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site or download a secondary payload. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with common phishing or malware delivery techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

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://feedproxy.google.com/~r/sq/ugae/~3/iCUEKX862tE/square?utm_term=sarcasm+for+idiots
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f229e280d83038fa764594/1626483170486/70318048613.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f22eb8890fa5305bdb7dd5/1626484408198/how_to_tp_someone_with_a_command_block.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ed9637262c1d401133d5a7/1626183223660/sesazeposaripudoteme.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee3201e9cbfe6c2fe74e34/1626223105472/xuperone.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011614.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x11614 16792 bytes
font_01_sfnt_off00012e26.bin
de10c444eddc6f5518121ec8bb44e5f613751cdcc574d8cdda7958d999b6a94a
pdf-font-stream PDF embedded font (sfnt) at offset 0x12E26 17496 bytes
font_02_sfnt_off00015b51.bin
920e988c8c4163751dbbe24b2f58b66ba5497ad93c98eb1d171265515a9cf205
pdf-font-stream PDF embedded font (sfnt) at offset 0x15B51 10428 bytes