Analysis Overview
SHA256
642767a008f041c568a6a1e6ec6cc8196c090b7ec94516ca182c2652d14b03f9
Threat Level: Known bad
The file 2024-02-26_639b19bcce7ff44cd25f46a03721dde6_cobalt-strike_ryuk was found to be: Known bad.
Malicious Activity Summary
Cobaltstrike
Unsigned PE
MITRE ATT&CK Matrix
Analysis: static1
Detonation Overview
Reported
2024-02-26 01:13
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-26 01:13
Reported
2024-02-26 01:16
Platform
win7-20240221-en
Max time kernel
143s
Max time network
146s
Command Line
Signatures
Cobaltstrike
Processes
C:\Users\Admin\AppData\Local\Temp\2024-02-26_639b19bcce7ff44cd25f46a03721dde6_cobalt-strike_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-26_639b19bcce7ff44cd25f46a03721dde6_cobalt-strike_ryuk.exe"
Network
| Country | Destination | Domain | Proto |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
Files
memory/2856-0-0x0000000000060000-0x0000000000061000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab51F9.tmp
| MD5 | ac05d27423a85adc1622c714f2cb6184 |
| SHA1 | b0fe2b1abddb97837ea0195be70ab2ff14d43198 |
| SHA256 | c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d |
| SHA512 | 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d |
memory/2856-17-0x0000000003C30000-0x00000000040A2000-memory.dmp
memory/2856-18-0x0000000003830000-0x0000000003C30000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Tar61F3.tmp
| MD5 | 9c0c641c06238516f27941aa1166d427 |
| SHA1 | 64cd549fb8cf014fcd9312aa7a5b023847b6c977 |
| SHA256 | 4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f |
| SHA512 | 936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06 |
memory/2856-55-0x0000000003830000-0x0000000003C30000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-26 01:13
Reported
2024-02-26 01:16
Platform
win10v2004-20240221-en
Max time kernel
147s
Max time network
153s
Command Line
Signatures
Cobaltstrike
Processes
C:\Users\Admin\AppData\Local\Temp\2024-02-26_639b19bcce7ff44cd25f46a03721dde6_cobalt-strike_ryuk.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-26_639b19bcce7ff44cd25f46a03721dde6_cobalt-strike_ryuk.exe"
Network
| Country | Destination | Domain | Proto |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 234.58.204.154.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 134.71.91.104.in-addr.arpa | udp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| HK | 154.204.58.234:443 | 154.204.58.234 | tcp |
| US | 8.8.8.8:53 | 91.65.42.20.in-addr.arpa | udp |
Files
memory/3068-0-0x00000256D2740000-0x00000256D2741000-memory.dmp
memory/3068-1-0x00000256D4AE0000-0x00000256D4F52000-memory.dmp
memory/3068-2-0x00000256D46E0000-0x00000256D4AE0000-memory.dmp
memory/3068-3-0x00000256D46E0000-0x00000256D4AE0000-memory.dmp