MALICIOUS — normal_5f871c6041b1c.pdf
MALICIOUS — normal_5f871c6041b1c.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 3 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
084b986247076310268b65a9ca479c868b1a3f29466b039db00864035d3a7bcf - SHA-1:
684d8ba81e9e8356333d97a905715447c82578c5 - MD5:
24a7380f89a3c0edccc0c0779901b9af - ssdeep:
768:FgGzpDDpf1nF4nNE/CQE0ZcCWm1i9W0eNTl/xFfrY/0qSce3if:WGFnphcCWm1i4NtxZLkxf - TLSH:
T12D326CF340A3DD4C7AC7DF43AEFA2898615AE388A032A7604598672C807C77D7E50A50 - Submitted as: normal_5f871c6041b1c.pdf
- File type: pdf · Size: 46515 bytes
- Verdict: malicious (72/100)
Detections (3 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
- Kaspersky (KVRT): HEUR:Trojan.Script.Generic
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 15 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://cdn-cms.f-static.net/uploads/4365547/normal_5f86f97ed83d1.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://ggtraff.ru/123?keyword=conjugate+verbs+in+spanish+worksheet, https://site-1048449.mozfiles.com/files/1048449/kusanajaf.pdf, https://site-1037180.mozfiles.com/files/1037180/60851569777.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
- Extracted generic config (20 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9816 behavior events · 0 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\SumatraPDF-settings.txt -
fbfdb0dfc82944622579fefc199de2e240e8e18fe049d3270778050c37518b2c - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\b5efafce9e95fb8fe83d7d431740bbaa.png -
5663223d534b54ae8e9171b4b9f9cfc9df25db3dca732277f1170be23f5891b3 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ggtraff.ru/123?keyword=conjugate+verbs+in+spanish+worksheet
- https://site-1048449.mozfiles.com/files/1048449/kusanajaf.pdf
- https://site-1037180.mozfiles.com/files/1037180/60851569777.pdf
- https://site-1039959.mozfiles.com/files/1039959/97150882269.pdf
- https://site-1037172.mozfiles.com/files/1037172/sazakujapib.pdf
- https://site-1038499.mozfiles.com/files/1038499/9959426339.pdf
- https://cdn-cms.f-static.net/uploads/4366348/normal_5f870ea7498a3.pdf
- https://cdn-cms.f-static.net/uploads/4365547/normal_5f86f97ed83d1.pdf
- https://cdn-cms.f-static.net/uploads/4365525/normal_5f87077966ba9.pdf
- https://cdn-cms.f-static.net/uploads/4365638/normal_5f871bba62372.pdf
- https://site-1038749.mozfiles.com/files/1038749/deselo.pdf
- https://site-1036902.mozfiles.com/files/1036902/13234466289.pdf
- https://site-1048176.mozfiles.com/files/1048176/44671105570.pdf
- https://site-1042347.mozfiles.com/files/1042347/zovupifat.pdf
- https://site-1036775.mozfiles.com/files/1036775/dixizujodupirejaxipew.pdf
- https://uploads.strikinglycdn.com/files/ad0b99cb-06e9-4187-8a69-56c55d10b833/nadepeponejikuke.pdf
- https://uploads.strikinglycdn.com/files/aa3897db-ed61-44a0-a4ba-669a1d6c7e74/21138268170.pdf
- https://uploads.strikinglycdn.com/files/dd60513c-520c-4fdd-8ac7-ae8e30bfbaeb/89030859813.pdf
- https://uploads.strikinglycdn.com/files/4d87a806-eb98-4e91-8f9c-7b5c17891ad3/42718673393.pdf
- https://uploads.strikinglycdn.com/files/da41068f-f5d9-45ee-801d-6223ccc0ae8f/piduwopobugo.pdf
- https://uploads.strikinglycdn.com/files/da3acff4-f1b8-4a3d-ab63-10a05b192ed0/28496764556.pdf
- https://uploads.strikinglycdn.com/files/b3de363c-3acd-4f0b-8126-ae8db68c9886/12106010558.pdf
- https://uploads.strikinglycdn.com/files/7dd45811-e3ef-459d-8d0b-185da0ba0b24/80668086465.pdf
- https://uploads.strikinglycdn.com/files/01a1ace8-8f6e-4797-9272-064f771546e8/mawedokibupevibomexibiteb.pdf
- https://uploads.strikinglycdn.com/files/8b717ffe-ba32-4627-ae01-1165b3dbd3fd/wubutajobezojobesalile.pdf
Embedded domains
- ggtraff.ru
- site-1048449.mozfiles.com
- site-1037180.mozfiles.com
- site-1039959.mozfiles.com
- site-1037172.mozfiles.com
- site-1038499.mozfiles.com
- cdn-cms.f-static.net
- site-1038749.mozfiles.com
- site-1036902.mozfiles.com
- site-1048176.mozfiles.com
- site-1042347.mozfiles.com
- site-1036775.mozfiles.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 52.123.252.192
- 4.230.171.124
- 20.247.185.124
- 74.179.77.204
- 74.178.240.51
- 20.231.239.246
- 4.150.223.107
- 52.123.129.14
- 40.103.64.242
- 40.99.134.18
- 74.178.76.44
- 203.26.79.13
- 52.123.252.226
- 92.223.78.30
- 52.148.114.188
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report