Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f4b809a41542f9…

MALICIOUS

PDF

87.7 KB Created: 2021-05-28 06:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd7fb7cadd55d9f579d5106bbc29ea53 SHA-1: 69126146e94373552b213819841f417a5891278e SHA-256: e1f4b809a41542f9378479d73ff84a60fe38bf40ef47fb6559b7b73538ca842d
96 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains embedded URLs that point to potentially malicious content, and the document body, though obfuscated, suggests a lure. The presence of external URIs and embedded URLs indicates an attempt to redirect the user to a malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://daleplumbinginc.com/wp-content/plugins/super-forms/uploads/php/files/25f035ecb4a89505ce7de00de4ba7f0a/33423757978.pdf
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/3bd7afa839c6f68ecac7f0c9e63ab5c9/12853103869.pdf
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6bdf012b6---dubuwafizakumazux.pdf
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/q4994r9pjg53cki715rlm3hk8q/kipod.pdf
    • https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/65c7002c363017a84f00878c2ac527fc/18420833191.pdf
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/f300b00bc30ec6e96eb681bf13c7882b/wovubulakoxibawazekexij.pdf
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609fee7883522---50344291990.pdf
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160780fd6be332---towami.pdf
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ce1a30bc4---71270016019.pdf
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8ee15fb85---81309629010.pdf
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/9c96ljuuoh5da6kbv3kclkl3o2/kakizewuxedepajuledoja.pdf
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607114333bd8c---56550704880.pdf
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/f5b4a2e880c85e122aab0cd895054770/46450265707.pdf
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086465b4f1df---38779337916.pdf
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7f47a2ba3---jemorowosufugulozusabaxo.pdf
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16097e7a50d6c2---toguzakamuzabizewigi.pdf
    • http://al-bandak.com/userfiles/file/85290794005.pdf
    • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160706d57c7669---vosexip.pdf
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/02c23ab850e4f04981bf1923c12cc857/rufurawi.pdf
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160759867c6bad---86916097820.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=ode+to+joy+2+ep+16+eng+sub
    • 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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f618.bin
1802b8bb42d0b103998bdd1c064c73b85682a3169ed975e901302bc5071a5baf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF618 3188 bytes
font_01_sfnt_off00010180.bin
41787571632d7003a9e525cf067be56bdd6130b4c1931da7aaf465ca491770e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10180 5472 bytes
font_02_sfnt_off00011442.bin
bbadc03650adfa350b390fe1aba7eb99a839c5cf2d4d4a9f675c6e3c2f97dfa7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11442 12052 bytes
font_03_sfnt_off00013b9a.bin
1ffca1ef16be5e2ec436e77f9211a88ad3199dc781cb76600401cc2e2c7dce6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B9A 16140 bytes

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