MALICIOUS — jexefetofepi.pdf

MALICIOUS — jexefetofepi.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100). 4 of 50 detection engines flagged it, exhibiting 1 ATT&CK technique.

Identification

• SHA-256: e8f77e698b5fa69e6de42a5e5de420ebfae38135fde548803e3ad28fce0d9c24
• SHA-1: cc0997bf542a9c4fd91eb6c9fe38e1bda68f760d
• MD5: 237e48b3646012a9185e83a7dfedd218
• ssdeep: 1536:80cFd+fsnCm6ZAZZN4ARCDyml96B5Vj4izMykT3gVrl+N:FcqsIAZfF44ST3cry
• TLSH: T1E036BFF3214ACD8C779AAB1378F614682055D38CA572DB645899BA3CC47D27EEE60E00
• Submitted as: jexefetofepi.pdf
• File type: pdf · Size: 64250 bytes
• Verdict: malicious (96/100)

Detections (4 of 50 engines)

• MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
• ClamAV (daily): Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• Emsisoft (Emergency Kit): PDF.Spam.Heur.1
• Kaspersky (KVRT): HEUR:Hoax.PDF.Phish.gen

MITRE ATT&CK

• T1566.002

Why this verdict

The malicious score of 96/100 is the fusion of 5 weighted signals:

• ClamAV (daily) flagged Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 (rule Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) - engine signal, weight 0.90, confidence 0.95
• Embedded link rated malicious by URL analysis: https://static.s123-cdn-static.com/uploads/4385198/normal_5fc603ddaf69b.pdf - network signal, weight 0.70, confidence 0.80
• Embedded network infrastructure: https://ggtraff.ru/wb?keyword=meiosis%20vs%20mitosis%20worksheet%20answers, https://cdn-cms.f-static.net/uploads/4371808/normal_5f8fbc538ecd8.pdf, https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5a383485235c86bda9f9/1606375992957/21334762180.pdf - static signal, weight 0.35, confidence 0.60
• Document active content: uri-action - static signal, weight 0.30, confidence 0.60
• Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55

Dynamic analysis

No runtime behaviour was captured for this sample, so the analysis above is static only. That is a limit of this run rather than evidence the sample does nothing.

Embedded URLs

• https://ggtraff.ru/wb?keyword=meiosis%20vs%20mitosis%20worksheet%20answers
• https://cdn-cms.f-static.net/uploads/4371808/normal_5f8fbc538ecd8.pdf
• https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5a383485235c86bda9f9/1606375992957/21334762180.pdf
• https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe04f6173fb5383b68bceb/1606288630827/16455887104.pdf
• https://static.s123-cdn-static.com/uploads/4385198/normal_5fc603ddaf69b.pdf
• https://s3.amazonaws.com/kudowo/phase_ii_rotary_table_manual.pdf
• https://uploads.strikinglycdn.com/files/3f01431e-2508-441d-97e7-841e352e327a/bojerefepixumugegi.pdf
• https://static1.squarespace.com/static/5fbfff2111f6a4198480a438/t/5fc10f2e3c6ccf69f38350a3/1606487855108/82352285848.pdf
• https://s3.amazonaws.com/dorulusof/zemozevebewamugijatupi.pdf
• https://cdn-cms.f-static.net/uploads/4366399/normal_5fbcd2a3d73c1.pdf
• https://s3.amazonaws.com/tadevewuju/bisazepagulefula.pdf
• https://static1.squarespace.com/static/5fc5662f0b6b03258f5376ce/t/5fca5be5eaafa70f4cfc032a/1607097317826/flight_sim_2018_free_download.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/

Embedded domains

• ggtraff.ru
• cdn-cms.f-static.net
• static1.squarespace.com
• static.s123-cdn-static.com
• s3.amazonaws.com
• uploads.strikinglycdn.com
• www.w3.org
• purl.org
• ns.adobe.com

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Analyzed on MalwareAnalyzer by Cyble · Open interactive report