Analysis Overview
SHA256
2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7
Threat Level: Known bad
The file 2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7 was found to be: Known bad.
Malicious Activity Summary
Cobaltstrike
Checks computer location settings
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-27 19:59
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-27 19:59
Reported
2024-05-27 20:02
Platform
win7-20240508-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7.exe
"C:\Users\Admin\AppData\Local\Temp\2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7.exe"
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-27 19:59
Reported
2024-05-27 20:02
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Cobaltstrike
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Public\telegrem.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\Local Settings | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7.exe
"C:\Users\Admin\AppData\Local\Temp\2593feffdc915f5f024ee73e7787ccac8a8370916390567b09f7e4244a5d57c7.exe"
C:\Windows\SysWOW64\cmd.exe
cmd " /c " C:\Users\Admin\AppData\Local\Temp\话术.txt
C:\Users\Public\telegrem.exe
C:\Users\Public\telegrem.exe
C:\Windows\SysWOW64\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\话术.txt
Network
| Country | Destination | Domain | Proto |
| US | 104.194.78.37:8778 | 104.194.78.37 | tcp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 37.78.194.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 104.194.78.37:8778 | 104.194.78.37 | tcp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| NL | 23.62.61.75:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 75.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.251.17.2.in-addr.arpa | udp |
| US | 104.194.78.37:8778 | 104.194.78.37 | tcp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 104.194.78.37:8778 | 104.194.78.37 | tcp |
| US | 8.8.8.8:53 | 34.197.79.40.in-addr.arpa | udp |
Files
C:\Users\Public\telegrem.exe
| MD5 | 9d20a9b72019c0af26ac31e616f8b0d9 |
| SHA1 | 7a2e1d1eaa38dd9869717eb4c03f4e798899aa08 |
| SHA256 | c00ba42a5c9a8fe6a94a41dc39c0786d756dcb2fcc451125d854b650d9960711 |
| SHA512 | 77141bc59fa9acba56b22c4f3974d6270a8f46f9c8aa03c21890a59270f889bec6da17b2f843c64322edaac423409a5d0877c324ef812339d7611ff6b8e26548 |
memory/228-5-0x0000000000400000-0x0000000000770000-memory.dmp
memory/2400-6-0x000002C5839C0000-0x000002C5839C1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\话术.txt
| MD5 | dc22393c30676fb41bacc431d6f8da69 |
| SHA1 | 1dce0be16f8d8eb07be016fa3308452c61414fcd |
| SHA256 | 814bcf9b3bb012c9e395201f40d8dcd8b0226afb234cbbb5a1da4ada63932d6b |
| SHA512 | ca2ff87a7da43aa3b922a5498f58ca02c5bf924a8c8c577aadfca3f717362b69cef4c0d27e9c4e345911b018b94a32dbd0afa820a635b8718982398cc94f4022 |
memory/2400-9-0x000002C5CA8B0000-0x000002C5CACB0000-memory.dmp