Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cac1c8d332257c…

MALICIOUS

PDF

102.2 KB Created: 2021-03-18 00:09:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d1e3e3bdaba4bdff09d3c5589231b45 SHA-1: b52e686adb1a30131733a3085bac71c3b424bacf SHA-256: 49cac1c8d332257c76c1fae46320be59a21885b8595a037278c1cce658e233e8
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains references that attempt to disguise the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/aws?utm_term=bram+stoker%2527s+dracula+movie+wikipedia
    • https://static.s123-cdn-static.com/uploads/4451023/normal_5feaf9c9569cb.pdf
    • https://static.s123-cdn-static.com/uploads/4477139/normal_60099e3e81afb.pdf
    • http://boost-store.net/86207188445tyj25.pdf
    • https://static.s123-cdn-static.com/uploads/4409814/normal_5feb78a78970e.pdf
    • http://tozepefaj.iblogger.org/13584487311.pdf
    • https://static.s123-cdn-static.com/uploads/4368494/normal_60042ff2ba809.pdf
    • http://2022god.com/cryptopia_exchange_app_android035ut.pdf
    • http://lulezuzebat.22web.org/lejixugebi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/benubapopikaj/wabibibujuvam.pdf
    • https://s3.amazonaws.com/davolazupivowi/was_the_book_of_enoch_in_the_original_king_james_bible.pdf
    • https://uploads.strikinglycdn.com/files/87d00823-5c39-4372-a8ad-beaa4c59ecc8/how_to_train_your_dragon_2_villains_wiki.pdf
    • http://ruguwusizomu.epizy.com/binh_php_tn_t_tp_27.pdf
    • https://uploads.strikinglycdn.com/files/478efb52-edfe-4483-9e5f-ab6ab4e95243/6042913567.pdf
    • https://s3.amazonaws.com/pasutiz/tiziv.pdf
    • https://uploads.strikinglycdn.com/files/38e8a143-8825-4982-a110-4ff7bd696e7f/bagezupokavusorinenaxofaj.pdf
    • https://uploads.strikinglycdn.com/files/243f7899-5ae5-406f-9bfa-ce1657dfb1c1/puvidebajejijig.pdf
    • https://uploads.strikinglycdn.com/files/92f7879a-b1f9-405e-9f71-e28a7bace04b/nothing_else_matters_tabs_easy.pdf
    • http://mafoxatuw.epizy.com/the_watsons_go_to_birmingham_byron_character_traits.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000141a6.bin
24447c000dc6f47cdd0a7a94f1f4be87eda35bd03c9d38feabd11e5c5645c9ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x141A6 5296 bytes
font_01_sfnt_off000153c8.bin
a01d1cce899ac24b86e03e816e24d05cc50f38bcff9ad6482d174261f139743c
pdf-font-stream PDF embedded font (sfnt) at offset 0x153C8 12436 bytes
font_02_sfnt_off00017d8a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x17D8A 4324 bytes