MALICIOUS — 53616459837.pdf
MALICIOUS — 53616459837.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (82/100). 3 of 53 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
bf508332bc1dd3bab28d0375838428e340b9cc93fc065e8b87a054dbebe099b4 - SHA-1:
a97d29c346fc138b5a09e5b8c562c6075ac48d1c - MD5:
eb6f131baf29c83b9832c1dbb25ce1f2 - ssdeep:
768:HgGzpD0eCqh+F+n3mcap84dBPQ8H3CGqE/:AGFoeWcap84dBPQ8SGqE/ - TLSH:
T185318DF32093EE8C7987BF876AF600666147868C7136D7A045C97B7C84BC5AD6F10A60 - Submitted as: 53616459837.pdf
- File type: pdf · Size: 42958 bytes
- Verdict: malicious (82/100)
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 82/100 is the fusion of 6 weighted signals:
- Memory forensics: 3 finding(s), e.g. RWX/private injected region in SumatraPDF.exe (pid 8712) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Contacted 17 external host(s) at runtime (8 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://cctraff.ru/strik?keyword=manual+do+candidato+fgv+direito+sp, https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fesixukorupu.pdf, https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/7d7b6617ab8.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 (10 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9690 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
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- ntp.ubuntu.com
- 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
- 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
- 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 -
d55b595da27dbaffaf0689009f7487da65c7b2bd7cbeaa61462f9c081eb0ad56 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\ab77f8add4ee24a960357e7672592241.png -
946cdb2110901b0053466ec2cf0e1d53ffd450634aa90857b9b1c4005073dec2 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://cctraff.ru/strik?keyword=manual+do+candidato+fgv+direito+sp
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fesixukorupu.pdf
- https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/7d7b6617ab8.pdf
- https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdf
- https://uploads.strikinglycdn.com/files/f813e12f-283d-43ab-a073-25b2cfed283b/2349689551.pdf
- https://uploads.strikinglycdn.com/files/60839bea-1b88-4446-8540-42de1ffb86f6/jalab.pdf
- https://uploads.strikinglycdn.com/files/b1d2bb05-cef7-488a-9313-3ff7b603fffe/72895927755.pdf
- https://uploads.strikinglycdn.com/files/617d14a6-84d5-49dd-888b-7ff51cdcf91a/8908227720.pdf
- https://uploads.strikinglycdn.com/files/9499637b-104a-47e9-a478-ac68987ea7d8/3313140875.pdf
- https://uploads.strikinglycdn.com/files/13bef648-0679-4542-ba15-39ab0ffaef03/49189298934.pdf
- https://uploads.strikinglycdn.com/files/20d02a06-59ec-4ee8-ae1d-38481179b3db/11111038470.pdf
- https://uploads.strikinglycdn.com/files/073cfe14-7052-4645-91ac-7556c8dce6af/15340185594.pdf
- https://uploads.strikinglycdn.com/files/95d3ffde-8347-431b-ad91-4bc36eb5dcf0/96106012525.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=1787759602&P2=404&P3=2&P4=nn6K5fMrVfDlL3JQ162Nh5QTmwg0TjagUrQHJrgoNHbYkIn6tNrLCp0c8ZAM6FDa6rY9iEOdBOGB2pTt7YXl5Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- cctraff.ru
- jakedekokobara.weebly.com
- vuxozajuje.weebly.com
- dutitujazekap.weebly.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 135.232.92.34
- 52.110.12.32
- 4.230.171.124
- 20.42.179.204
- 203.26.79.13
- 74.178.240.61
- 74.178.240.51
- 20.112.250.133
- 52.123.252.234
- 52.123.128.14
- 40.99.133.226
- 40.104.4.2
- 52.168.117.169
- 4.150.223.112
- 48.200.63.27
- 4.150.223.115
- 52.148.114.188
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report