Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e284354524ec6c…

MALICIOUS

PDF

84.1 KB Created: 2021-03-26 03:11:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d848f0d2b220672d4e71579d8068ee23 SHA-1: b1fd1eb8113068f18e03ae0e6320f36b8a74ebfd SHA-256: 19e284354524ec6c0a041cde0617624956633ef2a57e0e43857844fc67dde5de
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a URL that mimics IKEA instructions, likely a lure to trick users into downloading a secondary payload. The document body is heavily obfuscated, preventing a clear understanding of its direct content, but the presence of external URLs and the overall detection suggest a malicious intent to deliver further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://seumenha.ru/award?keyword=ikea+hemnes+bed+frame+instructions+pdf
    • https://povarudoro.weebly.com/uploads/1/3/5/3/135324530/suwurusapotujazilo.pdf
    • http://maxoranano.sportsontheweb.net/87109408669.pdf
    • http://ribavid.medianewsonline.com/betwixt_and_between.pdf
    • https://mipapipav.weebly.com/uploads/1/3/4/0/134012398/df1fc35a.pdf
    • http://zelaxukixut.iblogger.org/82236883512.pdf
    • https://gefidiwe.weebly.com/uploads/1/3/0/7/130738847/zaxazez_pivoz_vevupiripuva.pdf
    • https://febadezupuwile.weebly.com/uploads/1/3/1/0/131071278/9939590.pdf
    • https://kozitasulama.weebly.com/uploads/1/3/4/6/134647404/3231078.pdf
    • https://zamigalimigarub.weebly.com/uploads/1/3/5/3/135326483/jaxijefopefe_toponimoj_pewukalug_lujetakut.pdf
    • https://limorevoxa.weebly.com/uploads/1/3/4/6/134611026/c241c03.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://laletanegimiw.epizy.com/mopawamabotumokupaxagoto.pdf
    • https://uploads.strikinglycdn.com/files/2423c29c-eef2-4a08-a0c8-5cbf99a6c82e/lawasotawomufav.pdf
    • https://uploads.strikinglycdn.com/files/b9e41d9f-f502-4fc2-8e86-45e234cc10a0/miller_thunderbolt_xl_225_150_ac_dc_stick_welder_for_sale.pdf
    • http://rogofideb.onlinewebshop.net/wefefivaberirenoxexabi.pdf
    • https://uploads.strikinglycdn.com/files/b739674e-3326-44bb-911f-698ee8b22193/86502314716.pdf
    • https://s3.amazonaws.com/verirejon/constructor_plus_trophy_guide.pdf
    • http://burupilejeg.epizy.com/intel_business_strategy_case_study.pdf
    • https://uploads.strikinglycdn.com/files/77ff230e-72e1-4348-af7b-b7169004fe65/rewumutuxamiriroxosagit.pdf
    • http://mavixufomulene.rf.gd/98139180396.pdf
    • https://uploads.strikinglycdn.com/files/08a3d289-4841-4cfe-b567-abd9dddac41f/15173028814.pdf
    • http://vezavajizuvos.epizy.com/ipl_schedule_2018_app.pdf
    • http://nijarigu.onlinewebshop.net/mamefegijobeporotur.pdf
    • https://s3.amazonaws.com/sizadagazagaj/acer_aspire_one_cloudbook_14_laptop_charger.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f57b.bin
f9b4d57133ff352605a14585f9c950c494bde962cf6cb7f01c1c06f4f7ad63ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF57B 5504 bytes
font_01_sfnt_off0001080c.bin
86a4ed410e9dd9696cf560992b03cba2c2b261bc6b093cd75d61c1a2979abd92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1080C 10940 bytes
font_02_sfnt_off00012d69.bin
bc1c1644e30597ae0beaac312b9749a82b64e26c109397326cdc67fdbaf2fe17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D69 16036 bytes

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