MALICIOUS — guvuzawukafu.pdf
MALICIOUS — guvuzawukafu.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (72/100). 2 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
a2fa692683b986157653cd8e4ef91676d65cbb4f0120d04b40c4ee8ff7e6b080 - SHA-1:
b0b4721f2fde0438313150fe59a88af2b7f64f89 - MD5:
b075f2be5fa1c7e3de1d0ad6c4533c2c - ssdeep:
768:/gGzpDLQuorRzPqPl+Vcoh42SOTFxo2/2:IGF3MqPYaohpbxo2/2 - TLSH:
T1042F7EF350A7EC8CBB8AA7076ADB105D904AC78D2136C7600988776DD47CBFE6E10961 - Submitted as: guvuzawukafu.pdf
- File type: pdf · Size: 34573 bytes
- Verdict: malicious (72/100)
Detections (2 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 72/100 is the fusion of 6 weighted signals:
- Contacted 17 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: https://uploads.strikinglycdn.com/files/e32564f1-21b8-438d-9920-5fa0ab51da77/kosukefarixizadod.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://ggtraff.ru/strik?keyword=trig+graph+worksheet+pdf, http://files.timelesstoys4u.com/uploads/1/3/2/6/132683078/6eddbaf10.pdf, http://files.karenapps.com/uploads/1/3/1/4/131483235/f3c35.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 (12 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9646 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
- 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
- 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
- ntp.ubuntu.com
- desktop-hsgcbep
- 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=1787775836&P2=404&P3=2&P4=UUl53gyLU7x83apXnNXxykuajLlRKJvhm98Y0kjao2SBgcvqt5LBbP%2bX%2buHBdaNgjlNJ0APQzxD%2f72F0m4eMyQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\6843037048b058431ffaa3110b795978.png -
2f4fac89f75880be20d4beb0c576f9dc871bbca19ae6b264c36268ac5348436b - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
080baa8c3134fb737e76bd399d2401249672c0f9f1f635b046fa1b8a3b702a47 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://ggtraff.ru/strik?keyword=trig+graph+worksheet+pdf
- http://files.timelesstoys4u.com/uploads/1/3/2/6/132683078/6eddbaf10.pdf
- http://files.karenapps.com/uploads/1/3/1/4/131483235/f3c35.pdf
- http://rusop.tcstactical.com/uploads/1/3/0/7/130775997/wutisekovodufiv.pdf
- https://cdn.shopify.com/s/files/1/0433/7090/5750/files/63703440102.pdf
- https://cdn.shopify.com/s/files/1/0463/5839/7094/files/pivotal_response_training_example.pdf
- https://cdn.shopify.com/s/files/1/0482/6575/6834/files/98634117555.pdf
- https://cdn.shopify.com/s/files/1/0434/8398/8125/files/west_2020_president.pdf
- https://site-1036697.mozfiles.com/files/1036697/8072616312.pdf
- https://site-1036838.mozfiles.com/files/1036838/98921584010.pdf
- https://site-1038932.mozfiles.com/files/1038932/22193700788.pdf
- https://site-1040558.mozfiles.com/files/1040558/96337028709.pdf
- https://uploads.strikinglycdn.com/files/e32564f1-21b8-438d-9920-5fa0ab51da77/kosukefarixizadod.pdf
- https://uploads.strikinglycdn.com/files/6ff4e63b-bdb5-41b5-85d3-e766dad9cc29/33924388365.pdf
- https://uploads.strikinglycdn.com/files/589b2aca-6706-429a-ade2-6f7c9c32a54e/fafinetut.pdf
- https://uploads.strikinglycdn.com/files/4aef94c8-9b43-4eb2-bb11-020e7b1ec6a1/surazodefozerexevobemi.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
Embedded domains
- ggtraff.ru
- files.timelesstoys4u.com
- files.karenapps.com
- rusop.tcstactical.com
- cdn.shopify.com
- site-1036697.mozfiles.com
- site-1036838.mozfiles.com
- site-1038932.mozfiles.com
- site-1040558.mozfiles.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 162.159.142.9
- 52.123.252.224
- 52.110.12.26
- 4.230.171.124
- 20.247.185.124
- 135.233.95.135
- 135.232.92.137
- 4.150.223.101
- 52.123.128.14
- 172.178.240.161
- 52.123.252.223
- 72.153.5.128
- 203.26.79.13
- 52.123.252.235
- 20.184.175.20
- 20.184.175.21
- 52.148.114.188
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report