MALICIOUS — normal_5fc85963e36a8.pdf
MALICIOUS — normal_5fc85963e36a8.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100). 4 of 50 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
4209564042042b850ad883889c2abb4b5d5bdca7ae772d60ea10540d6dd451d7 - SHA-1:
d672908f7a8e144c34d0b8acea4e4503d7c836ee - MD5:
da76c4d96420f096f3e85d311314a25c - ssdeep:
1536:m21g/OA4/In3wJ2GAuF3hElSnYE0YjQRULxEyoOPPZaQG+1izbGn:71gGAn3wJ6AwYjtxmOPha8iHa - TLSH:
T1D237D0F3B197DD8C66C6EB27B5EA1D4D649EC58C2432AA5104C87A3C897C37EBE00521 - Submitted as: normal_5fc85963e36a8.pdf
- File type: pdf · Size: 71265 bytes
- Verdict: malicious (98/100)
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
Why this verdict
The malicious score of 98/100 is the fusion of 8 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/4490754/normal_5fc5fb6091717.pdf - network signal, weight 0.70, confidence 0.80
- Contacted 16 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://traffset.ru/123?utm_term=weathered+monument+3%252F4+chests, https://cdn-cms.f-static.net/uploads/4373983/normal_5f894c594b38b.pdf, https://static.s123-cdn-static.com/uploads/4490754/normal_5fc5fb6091717.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
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Extracted generic config (6 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9657 behavior events · 1 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- 250.255.255.239.in-addr.arpa
- desktop-hsgcbep
- ntp.ubuntu.com
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\2b33902d284a8609d46fd6238be70c87.png -
e8a499f492de767399cc76bdd063a52a04b170ab63927ea3d1a649d51a326510 - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
cc1e1f8287d31654f36abaaf6da030afe2ad195381907799e9f909c910c370b8 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://traffset.ru/123?utm_term=weathered+monument+3%252F4+chests
- https://s3.amazonaws.com/kigavanus/balancing_equations_easy_worksheet.pdf
- https://s3.amazonaws.com/jozaponi/7z_file_extractor_for_pc.pdf
- https://s3.amazonaws.com/dotivaf/vidmate_apk_download_for_android_4.0.4.pdf
- https://cdn-cms.f-static.net/uploads/4373983/normal_5f894c594b38b.pdf
- https://s3.amazonaws.com/pirofopafu/wugibegexirivawidin.pdf
- https://static.s123-cdn-static.com/uploads/4490754/normal_5fc5fb6091717.pdf
- https://cdn-cms.f-static.net/uploads/4369306/normal_5f887fb5a7ec4.pdf
- https://cdn-cms.f-static.net/uploads/4385631/normal_5f8e58748af3e.pdf
- https://s3.amazonaws.com/gotitibekovi/best_game_engine_android_app.pdf
- https://s3.amazonaws.com/zirojopemup/biochemistry_ebook.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf57aff3de5e49b55b764c/1606375344156/house_on_mango_street_book_cover.pdf
- https://s3.amazonaws.com/zuxadol/spring_mvc_architecture_in_java.pdf
- https://s3.amazonaws.com/geraromu/vebibiwobetativumupeme.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://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787386233&P2=404&P3=2&P4=XPymWAAS7QSxWqVc9PybcRkDCARnhNWJcAdbFS3tQ9fT9Mhai0LHSQ4CEeOwk7jez%2bel7QJ0kmREuTud3jwtoQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- traffset.ru
- s3.amazonaws.com
- cdn-cms.f-static.net
- static.s123-cdn-static.com
- static1.squarespace.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 162.159.142.9
- 20.42.65.84
- 4.230.171.124
- 20.247.185.124
- 4.144.132.223
- 74.178.240.61
- 52.123.129.14
- 52.123.128.14
- 40.104.4.2
- 135.233.95.80
- 72.154.7.17
- 203.26.79.13
- 52.123.252.232
- 135.232.92.34
- 52.148.114.188
- 162.159.36.2
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report