Malicious PDF — malware analysis report

Static analysis result for SHA-256 919f9153fc57474b…

MALICIOUS

PDF

81.9 KB Created: 2021-03-13 20:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cc9978f4b8a6b3c2b1efb7078e0a8ab SHA-1: 787ae85155824fea961a9ff7845b562558720a1a SHA-256: 919f9153fc57474b40c9f95a7b8116eef77560eed62fcef8e0520a683317b461
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references that align with the URI's lure.

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://druttle.ru/wix?keyword=mrs.+jewell+wiki
    • https://cdn.sqhk.co/dajebala/jfkxja5/speaker_boost_for_laptop.pdf
    • http://toppiksnack.xyz/61947398519pqy65.pdf
    • http://furniture21.online/16698277529ptws7.pdf
    • https://cdn.sqhk.co/rijomawonuj/ifgoHbj/hmrc_contact_phone_number_paye.pdf
    • http://instapriz.site/adobe_flash_player_firefox_androidpu4dr.pdf
    • http://reweder.site/dell_latitude_e5500_memory_slotspuuc6.pdf
    • http://gakmancreatures.ru/goal_zero_flip_24_power_bank_reviewjkd78.pdf
    • https://cdn.sqhk.co/wupifufexix/hgzqhcA/mujujezuzafanawitit.pdf
    • https://cdn.sqhk.co/jezumasulej/gjjgjia/velunusoxelumuxitojar.pdf
    • https://cdn.sqhk.co/muluxodipoto/g7higfM/36920517096.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://b84c3727-5d5a-4c5d-9d5d-21cac87b3a69.filesusr.com/ugd/fdd6c2_e342e629c8df48e39564d7d6c81bcb8d.pdf?index=true
    • https://s3.amazonaws.com/tiduro/lanunarajaweterelujeluva.pdf
    • https://s3.amazonaws.com/jipowumat/xavarasesomerufug.pdf
    • https://591e60e9-54e8-4b06-a9a7-f2e0522969d0.filesusr.com/ugd/1fd4b7_00fd31a386ce444ab7b0783fa44823c2.pdf?index=true
    • https://fbaba6ab-37cf-477f-82bd-e10a416eccda.filesusr.com/ugd/3c8574_0ada05a6827542a5bcf4cabd0fc764f8.pdf?index=true
    • https://6b2f37ea-3696-4b87-858b-663c379f6f6f.filesusr.com/ugd/16879a_30b073b29e8f4b7bb321931e5bc8edfe.pdf?index=true
    • https://s3.amazonaws.com/rovikibixu/camscanner_licence_full_apk.pdf
    • https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_a1533c1fb0be4682a8536dfa2a508675.pdf?index=true
    • https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_11e902a0084a4d7f86170438ddbfa273.pdf?index=true
    • https://da5bec28-7969-4117-8ffb-5069fce5e80c.filesusr.com/ugd/31593d_834f62aff29842a38da88e47ebdcace6.pdf?index=true
    • https://s3.amazonaws.com/kitakilesa/file_minimizer.pdf
    • https://s3.amazonaws.com/jivala/doruma.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_off0001046a.bin
494b2691d950f8844ff6e7a7e8495d9b7875ff7213f86ee19af63b6eb6099b47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1046A 4736 bytes
font_01_sfnt_off000114b9.bin
521eb76056227112c4c4f0c6852e1825c23fa848f2d2b93d067d31e7ab7ca40d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x114B9 11248 bytes

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