Malicious PDF — malware analysis report

Static analysis result for SHA-256 56759efce648a216…

MALICIOUS

PDF

79.4 KB Created: 2021-04-08 01:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 075685a8c96021b6f0ecc915583fe1e8 SHA-1: 4cb028ea8b27935b87e399963a5ab5656f53057c SHA-256: 56759efce648a2166d876c99aaed07d8b3b76b6577356b4fe5778995abf65c76
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it's a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of the external URI strongly suggests a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://lozipotod.ru/wix?keyword=new+ford+truck+manual+transmission
    • https://cdn.sqhk.co/towinomer/dk6D0gf/aaron_rodgers_family_business.pdf
    • http://itali-big.space/molonenomufavetepcezu.pdf
    • https://cdn.sqhk.co/daposofoxig/gdKbzia/60010049524.pdf
    • http://adachivia.store/why_is_my_verizon_jetpack_not_workinga5x9l.pdf
    • http://help-violation.com/45478404757zr9ta.pdf
    • http://lnstagaram-verifiedbadges-from.com/fifiwunorixejekemamvq0p.pdf
    • https://cdn.sqhk.co/teposodigar/jejc1DQ/gatewebajuzipinud.pdf
    • http://nicechange.space/temple_of_aminishi_guide_soloqxgq6.pdf
    • https://cdn.sqhk.co/duzimisese/aqajbhi/43404353736.pdf
    • https://cdn.sqhk.co/laxefotogulo/Hicif06/50896355252.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c3c8c1a7-ff78-4bdc-8088-23470aa58a4c/is_junie_b_jones_dead.pdf
    • https://uploads.strikinglycdn.com/files/d35d5570-be17-43c7-b103-54ad5fddc7a4/cloud_security_concerns_data_breaches.pdf
    • https://uploads.strikinglycdn.com/files/57e686e9-21e5-4643-bfb5-1bed684557d9/wd_portable_elements_vs_my_passport.pdf
    • https://uploads.strikinglycdn.com/files/c1356272-8bee-4109-81c8-c5df64ff938f/hot_licks_for_bluegrass_guitar.pdf
    • https://uploads.strikinglycdn.com/files/3c65be1b-f0c1-4165-be52-2e505c59f527/irregular_verbs_english_grammar_exercises.pdf
    • https://uploads.strikinglycdn.com/files/1a9a1983-14ff-4e73-b2b3-867199c97448/xorivarebimimomelusaji.pdf
    • https://s3.amazonaws.com/begijufadi/kagogari.pdf
    • https://uploads.strikinglycdn.com/files/da1ca9a1-a725-410f-a393-2b3f7f850704/wivatanu.pdf
    • https://s3.amazonaws.com/ninazarila/bithiri_sathi_dj_songs_ing.pdf
    • https://uploads.strikinglycdn.com/files/7c58137d-60f6-4665-ab60-6eb7c489866b/the_big_short_streaming_english_subtitles.pdf
    • https://uploads.strikinglycdn.com/files/0512758a-098c-410a-9e0e-825ce7e3649e/hoover_steamvac_carpet_cleaner_repair.pdf
    • https://s3.amazonaws.com/wibedubosateg/19005799217.pdf
    • https://uploads.strikinglycdn.com/files/9c88e09d-71b9-4498-9c64-9e10fd21c591/zafovanobibebedanunib.pdf
    • https://uploads.strikinglycdn.com/files/beb7b413-4e3f-46ae-9150-b32ddf475d89/revagamej.pdf
    • https://uploads.strikinglycdn.com/files/c0ebb127-66c8-4e4f-b19c-b78d1b20c506/rarekenipodinilewave.pdf
    • https://s3.amazonaws.com/waxegatulo/90747418792.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_off0000fa76.bin
5ba32ffdcc50633d4cd055f130fa8259894dc7852d9ca0fe667efdecfa71d1f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA76 5292 bytes
font_01_sfnt_off00010c7c.bin
737fab62fbd80c367fbca08fd1b2a2582d1b96628c4aef8605d96a4b463e8e4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7C 10384 bytes

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