Malicious PDF — malware analysis report

Static analysis result for SHA-256 731ae74aaa81de90…

MALICIOUS

PDF

60.1 KB Created: 2020-12-18 02:06:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 238444747a8ef1129979bce171308678 SHA-1: 130114781491c4d7d72dd9ef6ddd1de867f15c30 SHA-256: 731ae74aaa81de90717af83bacebf0c1b74bfaf7cdcb8898577edf6b047d044b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'trafficel.ru', which is likely used for phishing or to download a secondary payload. The document body, though heavily obfuscated, contains keywords related to streaming, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/strik?utm_term=red+sparrow+streaming+canada
    • https://palifeselaliku.weebly.com/uploads/1/3/4/4/134441248/1368864.pdf
    • https://wevupifusa.weebly.com/uploads/1/3/4/3/134356286/849142.pdf
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/bazarerin-surilugajexu-jusibut-jopaxig.pdf
    • https://mixasokuxorizu.weebly.com/uploads/1/3/4/7/134742222/wutijopuzakoxalab.pdf
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/gosibokuvefuj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fifuto/how_to_invent_everything_download.pdf
    • https://s3.amazonaws.com/sazixipame/63397900680.pdf
    • https://s3.amazonaws.com/tujeviwakirawu/sql_server_2017_express.pdf
    • https://s3.amazonaws.com/dibedamoka/case_animatronics_game_apk.pdf
    • https://s3.amazonaws.com/jazofi/acta_constitutiva_de_una_empresa_sociedad_anonima.pdf
    • https://s3.amazonaws.com/suxuzubojut/free_movies_for_mobile_phones.pdf
    • https://s3.amazonaws.com/venunamazozuzo/superman_returns_movies_2020.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_off0000ad2f.bin
aa1651d02aecc8e914eff88acf64a584e92b18bb0cea80357e1eeb519df546f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD2F 5460 bytes
font_01_sfnt_off0000bfc6.bin
be70a7a708668222e9da0a1fb5864924b4107f6306dcb559b64f33f230fd7728		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC6 10556 bytes

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