MALICIOUS — serum.pdf
MALICIOUS — serum.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:
18a8d1b91b27cb2ef3963db8db17347e4b9098a83c9c3034ac0244569e33cae9 - SHA-1:
f9ada41d223c2ff17d039c755eaa3a2e102ea1b2 - MD5:
b50a189c62be7e4e234d698fc4cc7871 - ssdeep:
768:EgGzpDLxtWALkZCSF/4BPktWQxa4lomrDSGXZIJMubRJ1Jt:xGFPnZS6BPnQx5lomAWubz1Jt - TLSH:
T1C9318DF30167EC8C7AC6AB1769E611585085D74D21339AB498C8B76DC4BC3FC7E50A60 - Submitted as: serum.pdf
- File type: pdf · Size: 43035 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 22 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded link rated suspicious by URL analysis: http://files.lwmphotography.co.uk/uploads/1/3/1/4/131410685/kukitifizija.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: https://gettraff.ru/strik?keyword=buprenorfina+parches+pdf, http://files.celestechristieart.com/uploads/1/3/1/4/131453998/muwuzixi.pdf, http://files.thewheelcaravanpark.co.uk/uploads/1/3/1/0/131070192/tujuwunote.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)
9709 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
- c.pki.goog
- 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
- 252.0.0.224.in-addr.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
- desktop-hsgcbep
- ntp.ubuntu.com
- 79.243.254.169.in-addr.arpa
- 255.255.254.169.in-addr.arpa
- 250.255.255.239.in-addr.arpa
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\a33cf227937d60da0170cfd53c83b34e.png -
8096892c7b14dc4d3f576f38aa3f9ec0be14f02596d0aa36a2c837444368c4e9 - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
7f1d0ae0295a06176308511a99da9cdfd4525c7f3b459a5c82b635b449470e5f - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://gettraff.ru/strik?keyword=buprenorfina+parches+pdf
- http://files.celestechristieart.com/uploads/1/3/1/4/131453998/muwuzixi.pdf
- http://files.thewheelcaravanpark.co.uk/uploads/1/3/1/0/131070192/tujuwunote.pdf
- http://files.lwmphotography.co.uk/uploads/1/3/1/4/131410685/kukitifizija.pdf
- https://site-1036995.mozfiles.com/files/1036995/32552572662.pdf
- https://site-1036951.mozfiles.com/files/1036951/nevanokixivilad.pdf
- https://site-1037894.mozfiles.com/files/1037894/newokevevogaderuzamewemar.pdf
- https://site-1037074.mozfiles.com/files/1037074/rababikanamunabosadeve.pdf
- https://site-1037152.mozfiles.com/files/1037152/77054521962.pdf
- https://site-1037900.mozfiles.com/files/1037900/63158824029.pdf
- https://site-1037164.mozfiles.com/files/1037164/61514803364.pdf
- https://site-1036981.mozfiles.com/files/1036981/30979474992.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=1787759462&P2=404&P3=2&P4=VmfW2MaaNhQ%2bnJ%2b%2buxuvxPqD2kvJCNjMAulH5wjxL0aaCkNbCHHS%2bfcm6WDVb3U9MB9tWDhJgYdLhpqeDqn7PA%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
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787759494&P2=404&P3=2&P4=hOu1VrbPP8%2fLQqZG1qP59UKW5Q7VZ72uNwiBCrjYxy2df%2fd7sOczdNvXr55BKlg5cIgp5SbIdmOlsM%2bKfPB8Tw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- gettraff.ru
- files.celestechristieart.com
- files.thewheelcaravanpark.co.uk
- files.lwmphotography.co.uk
- site-1036995.mozfiles.com
- site-1036951.mozfiles.com
- site-1037894.mozfiles.com
- site-1037074.mozfiles.com
- site-1037152.mozfiles.com
- site-1037900.mozfiles.com
- site-1037164.mozfiles.com
- site-1036981.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 172.172.255.218
- 20.42.65.84
- 135.232.92.34
- 52.123.252.194
- 52.250.34.200
- 57.155.104.224
- 52.110.12.11
- 4.230.171.124
- 135.233.95.144
- 74.178.240.51
- 52.123.128.14
- 74.179.71.159
- 203.26.79.13
- 172.178.240.163
- 52.123.252.234
- 52.123.252.246
- 142.251.222.227
- 172.175.111.170
- 52.182.143.212
- 20.42.179.204
- 4.150.223.102
- 172.172.255.216
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report