MALICIOUS — 05a37477397159185db69b6651d659ffa98f47b73691c7d304bdae3be0a14c38
MALICIOUS — 05a37477397159185db69b6651d659ffa98f47b73691c7d304bdae3be0a14c38 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the NabucurObfs family. 4 of 25 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
05a37477397159185db69b6651d659ffa98f47b73691c7d304bdae3be0a14c38 - SHA-1:
761a7cf92a136d1a50d3e9664272891144eb040b - MD5:
c450297a02a9807c494ebb802e63f4c1 - imphash:
d41d8cd98f00b204e9800998ecf8427e - ssdeep:
12288:Suq3+qYltx5bdMzYMJ0NG6bHdyhlu+zqZh0AELcgGI8DcyatSSC+TrB3YVN/QuO+:3q3olRbCz5AHMiHZiRsDYCQqP4SAEI+ - TLSH:
T11B58DB62890402D8B2E3A41E6F3EC2B850C8B4155A7FB2F7C73615566CEBC316B1F994 - Submitted as: 05a37477397159185db69b6651d659ffa98f47b73691c7d304bdae3be0a14c38
- File type: pe · Size: 1678848 bytes
- Verdict: malicious (99/100) · Family: NabucurObfs
Detections (4 of 25 engines)
- Microsoft Defender: Trojan:Win32/NabucurObfs
- Emsisoft (Emergency Kit): Win32.Virlock.Gen.5
- Trellix Stinger (McAfee): W32/VirRansom
- Kaspersky (KVRT): Virus.Win32.PolyRansom.a
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 9 weighted signals:
- Dropped a malicious payload (NabucurObfs): f8eb2add883aec311f8cf97f0029ad604257cfc905e083c8bd7a77a2955563a6 - dynamic signal, weight 0.80, confidence 0.90
- Microsoft Defender flagged Trojan:Win32/NabucurObfs (rule
Trojan:Win32/NabucurObfs) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Win32.Virlock.Gen.5 (rule
Win32.Virlock.Gen.5) - engine signal, weight 0.55, confidence 0.85 - Trellix Stinger (McAfee) flagged W32/VirRansom (rule
W32/VirRansom) - engine signal, weight 0.55, confidence 0.85 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 36 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001 - dynamic signal, weight 0.40, confidence 0.75
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
24839 behavior events · 2 ATT&CK techniques · 19 dropped files.
Runtime network
- www.msftconnecttest.com
- inference.location.live.net
- google.com
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- settings-win.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
- msedge.api.cdp.microsoft.com
- windows.msn.com
- www.msn.com
- officeclient.microsoft.com
- odc.officeapps.live.com
- geo.prod.do.dsp.mp.microsoft.com
- assets.msn.com
- www.bing.com
- kv801.prod.do.dsp.mp.microsoft.com
Dropped files
- /opt/CAPEv2/storage/analyses/8846/files/f8eb2add883aec311f8cf97f0029ad604257cfc905e083c8bd7a77a2955563a6 -
f8eb2add883aec311f8cf97f0029ad604257cfc905e083c8bd7a77a2955563a6 - /opt/CAPEv2/storage/analyses/8846/files/090e4aea2346058a417f6652605d39b949c16f2ce0017d255e93af5f3a0db201 -
090e4aea2346058a417f6652605d39b949c16f2ce0017d255e93af5f3a0db201 - /opt/CAPEv2/storage/analyses/8846/files/d6cd5f1127372e07ca59d28efd178d2208bbc3fd5886285f246d83961b618bb3 -
d6cd5f1127372e07ca59d28efd178d2208bbc3fd5886285f246d83961b618bb3 - /opt/CAPEv2/storage/analyses/8846/files/780e55370697e6959d027c0b5aaa1c0f7d6b20d1f7837959d37ee9ec00cbd074 -
780e55370697e6959d027c0b5aaa1c0f7d6b20d1f7837959d37ee9ec00cbd074 - /opt/CAPEv2/storage/analyses/8846/files/dffedb4bd7421e0d8b56380f0641136f61f2316d9943e4cdfe0962643abe355d -
dffedb4bd7421e0d8b56380f0641136f61f2316d9943e4cdfe0962643abe355d - /opt/CAPEv2/storage/analyses/8846/files/84f4987d596e7ed13abce3051ac7cbee952ec69c9813f0de53de0eaa50202a56 -
84f4987d596e7ed13abce3051ac7cbee952ec69c9813f0de53de0eaa50202a56 - /opt/CAPEv2/storage/analyses/8846/files/bcb253ea3735a0cf0a8c6ee06c14c884937c64ddeacedb17240e40d403577620 -
bcb253ea3735a0cf0a8c6ee06c14c884937c64ddeacedb17240e40d403577620 - /opt/CAPEv2/storage/analyses/8846/files/c25efbac96a3f36e49948c1a44fdd4b7efa5328744b8cf332045ad2568f06233 -
c25efbac96a3f36e49948c1a44fdd4b7efa5328744b8cf332045ad2568f06233 - /opt/CAPEv2/storage/analyses/8846/files/d3e8d47e8c1622ec10adef672ca7a8992748c4f0a4e75f877462e7e661069698 -
d3e8d47e8c1622ec10adef672ca7a8992748c4f0a4e75f877462e7e661069698 - /opt/CAPEv2/storage/analyses/8846/files/ed7913a5b4914f6343f312915bd957b6c72c09c3061985d38d2d8b6c4241af51 -
ed7913a5b4914f6343f312915bd957b6c72c09c3061985d38d2d8b6c4241af51 - /opt/CAPEv2/storage/analyses/8846/files/543b086dadc7e0975855992d09235b7f73d10e747275f588ac6c2ed7df49467b -
543b086dadc7e0975855992d09235b7f73d10e747275f588ac6c2ed7df49467b - /opt/CAPEv2/storage/analyses/8846/files/73c146bc648921da36df747682f579b3225eac794a87e0b4a06cd92718e4e647 -
73c146bc648921da36df747682f579b3225eac794a87e0b4a06cd92718e4e647 - /opt/CAPEv2/storage/analyses/8846/files/5c5b0de42d55486ed61dd3a6e96ab09f467bb38ae39fced97adc51ba07426c0e -
5c5b0de42d55486ed61dd3a6e96ab09f467bb38ae39fced97adc51ba07426c0e - /opt/CAPEv2/storage/analyses/8846/files/d7ccfa717da892e1d8e101f7ba379a9a12569544b047d0dbb98b8b8798d705c8 -
d7ccfa717da892e1d8e101f7ba379a9a12569544b047d0dbb98b8b8798d705c8 - /opt/CAPEv2/storage/analyses/8846/files/0f35ace5268db33940ed18e946a9c65be4e31ec0ae31faa6e60122859c5cb5ca -
0f35ace5268db33940ed18e946a9c65be4e31ec0ae31faa6e60122859c5cb5ca
Embedded URLs
- http://www.msftconnecttest.com/connecttest.txt
- http://203.26.79.13/filestreamingservice//files/736bdc20-582e-46c5-ba31-d31d3d97258e/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/736bdc20-582e-46c5-ba31-d31d3d97258e?P1=1786364283&P2=404&P3=2&P4=iE%2b6JeO%2b8apTPzdIBPpHwjv2q1rGmWuy2Qj14Vn1lrIAOwvxOy0r7NgTJe0TqxDHEyojwErMe8zXBF8oZ1xSLA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://google.com/
- http://203.26.79.13/filestreamingservice//files/c48ae315-f580-4b6c-801e-58a0f885749d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c48ae315-f580-4b6c-801e-58a0f885749d?P1=1786364328&P2=404&P3=2&P4=MlpuBgivuUDyXeJwgVtb3dfVAXRqs27hzSA1d0Fxr%2bqjhC7tAf5Rsu4ghtwcuyfR2pK1vWzVukvfIYAtYCiNTw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 142.251.222.238
- 51.116.253.170
- 203.26.79.13
- 172.215.188.232
- 52.230.59.222
- 4.230.171.124
- 74.178.240.61
- 74.178.232.29
- 20.42.73.24
- 135.233.95.135
- 74.178.76.128
- 4.150.223.115
- 200.87.164.69
- 135.233.45.221
- 142.250.195.174
- 92.223.78.30
- 200.119.204.12
- 190.186.45.170
- 72.145.35.100
- 52.148.114.188
- 172.217.25.174
- 52.110.12.49
- 52.110.12.19
File paths
- i:\3J5
More NabucurObfs samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report