Analysis Overview
SHA256
3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832
Threat Level: Known bad
The file 3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832 was found to be: Known bad.
Malicious Activity Summary
Imminent RAT
Drops startup file
Drops desktop.ini file(s)
Suspicious use of SetThreadContext
Drops file in Windows directory
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-06-25 07:06
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-06-25 07:05
Reported
2022-06-25 08:21
Platform
win7-20220414-en
Max time kernel
202s
Max time network
108s
Command Line
Signatures
Imminent RAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WSydmB.url | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1928 set thread context of 616 | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: 33 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe
"C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\cwqcjm5n\cwqcjm5n.cmdline"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESDA78.tmp" "c:\Users\Admin\AppData\Local\Temp\cwqcjm5n\CSCC8A2BC2F1AE1405CB9C81AFD7AA52010.TMP"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
Files
memory/1928-54-0x0000000000E00000-0x0000000000E74000-memory.dmp
memory/812-55-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\cwqcjm5n\cwqcjm5n.cmdline
| MD5 | 9e4887d19668b0b93af48b552961765b |
| SHA1 | 9bb9b16510bd09a4a7b9871f1b633b79758a5725 |
| SHA256 | 3973f548c98e583c95d96ebabe2d9215fbc302d392adaac76b35b4e51dbc4256 |
| SHA512 | 64d35fc733cd83666e27ac331e785a2d69983b57d29ee9c0b5c7b6a40c9c0b6db7e59d40c1f96668933cc90b3aba1707b7b566d3d26020221f92ac60516e69d7 |
\??\c:\Users\Admin\AppData\Local\Temp\cwqcjm5n\cwqcjm5n.0.cs
| MD5 | 2421f4b574d919c0c286f0d76a6d7250 |
| SHA1 | d072d0b24b9ebdf33209261f9dd9e7a8d5a04f97 |
| SHA256 | ea3369074ef51e126f6044a14693e40d1ff0a46b060b5576f3a81940bd1e95a7 |
| SHA512 | 5c9c397ee760061001f34ddfc418e34468161ea95bc0f0bdfc4c7f98508be69527763f25fe5134c8cdf0d2ecd57362010f54271bfb0b6289780ace527babd496 |
memory/2044-58-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\cwqcjm5n\CSCC8A2BC2F1AE1405CB9C81AFD7AA52010.TMP
| MD5 | b50a7065201ed766ebe65e5727456157 |
| SHA1 | 007b0fb369baba19304cdf1f6205965ce5ccf694 |
| SHA256 | b45ad965bf36c526968327f1a7ae37ddd36d4e565e7e81446666ab5878b1bff9 |
| SHA512 | 48e06fe218c7d3b5ad16dbf187a906ee4862290a30cdb527289bdc65dc074ed39839da7960c89d7807e316d692cb5e389c462e1c45ee395178313ebec7a5efb8 |
C:\Users\Admin\AppData\Local\Temp\RESDA78.tmp
| MD5 | 848fc67e2339d2bf273a2af9e236ee85 |
| SHA1 | 83fe1181a85fa425f90bff784b16eef889cc65ae |
| SHA256 | cb24f19adefcf3238e542a50257ca747470662e8c1a7defb970c887338bd9b9d |
| SHA512 | 87939c4df714ca2864a9e1724d606c76f3d2b427d506270c08af7f97ff9aab55524bd3adb580a944d4595f2363367c2eadcac89768ed526ea085bcd3c02b4484 |
C:\Users\Admin\AppData\Local\Temp\cwqcjm5n\cwqcjm5n.dll
| MD5 | 24b780f9580309b9e449c43ecc487f82 |
| SHA1 | 43c56f3ed49098d916dd6dfdaf56796d5c371dc9 |
| SHA256 | 693dc8f84c8dbe183dae1dfd038dbd66408afe1ad5bd28879a500c7a551d4640 |
| SHA512 | 2fa9a891241eaf7c93306ec615dbc407467f6241f8f0e6404289d08e5752f246ea6bc6cf8f12b8b69e61ab62245b55e4426b9c922c77788b88221c257e61cbb9 |
C:\Users\Admin\AppData\Local\Temp\cwqcjm5n\cwqcjm5n.pdb
| MD5 | c6ab4a1384aea3a1250ddb2f0735c59d |
| SHA1 | 32b22ae8eb4483a4f60655dc338f1f237b3f54fe |
| SHA256 | ddd2feb107e3464bd661178fff7159349b280042cbdad7b3cb91ed3977e6f4f2 |
| SHA512 | 4a18268612a19951967546b90968fe5c0a4212d937181815ec7dd1c98e5f9ec8ed5c48c5ee9c19642e33ce01d36c978a69457509e85aa36b6658b5399c6570b4 |
memory/1928-63-0x00000000003E0000-0x00000000003E8000-memory.dmp
memory/1928-64-0x0000000000C50000-0x0000000000CB0000-memory.dmp
memory/1928-65-0x00000000004A0000-0x00000000004AC000-memory.dmp
memory/1928-66-0x0000000076851000-0x0000000076853000-memory.dmp
memory/1928-67-0x0000000004870000-0x00000000048C6000-memory.dmp
memory/616-68-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-69-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-72-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-71-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-74-0x0000000000451E5E-mapping.dmp
memory/616-73-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-76-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-78-0x0000000000400000-0x0000000000456000-memory.dmp
memory/616-80-0x0000000074F00000-0x00000000754AB000-memory.dmp
memory/616-81-0x0000000074F00000-0x00000000754AB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-06-25 07:05
Reported
2022-06-25 08:21
Platform
win10v2004-20220414-en
Max time kernel
158s
Max time network
158s
Command Line
Signatures
Imminent RAT
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WSydmB.url | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File created | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1640 set thread context of 4592 | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: 33 | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe
"C:\Users\Admin\AppData\Local\Temp\3a0302895b0f7577b066f76bf860208072b7859b72fce27af3392fba23225832.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\yf2s3nrj\yf2s3nrj.cmdline"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES64A5.tmp" "c:\Users\Admin\AppData\Local\Temp\yf2s3nrj\CSC627A4CBA2364EA1A72068F7789D464.TMP"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| NL | 20.50.201.200:443 | tcp | |
| NL | 67.26.111.254:80 | tcp | |
| NL | 67.26.111.254:80 | tcp | |
| NL | 67.26.111.254:80 | tcp | |
| US | 13.107.21.200:443 | tcp | |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
| US | 8.8.8.8:53 | zynovahk.duckdns.org | udp |
Files
memory/1640-130-0x00000000006A0000-0x0000000000714000-memory.dmp
memory/1296-131-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\yf2s3nrj\yf2s3nrj.cmdline
| MD5 | 9f8f52ad88932382ec5351b8eb483e64 |
| SHA1 | 9ba18ac1f30a465e05dfc10d9aa1ae857eee9a5d |
| SHA256 | ae96b23d3cb1859172ef35ee17db59777b1d5de597ace0808208d5d0444d7119 |
| SHA512 | bd9c92607955dffb0fd6a3d2d12c52040f7a8afcff927b3328f78f24614508ca9142c09c5e53a13376476302d380fd6811b3d6f9b2ac51cc9e7eca27da36c5e0 |
\??\c:\Users\Admin\AppData\Local\Temp\yf2s3nrj\yf2s3nrj.0.cs
| MD5 | 2421f4b574d919c0c286f0d76a6d7250 |
| SHA1 | d072d0b24b9ebdf33209261f9dd9e7a8d5a04f97 |
| SHA256 | ea3369074ef51e126f6044a14693e40d1ff0a46b060b5576f3a81940bd1e95a7 |
| SHA512 | 5c9c397ee760061001f34ddfc418e34468161ea95bc0f0bdfc4c7f98508be69527763f25fe5134c8cdf0d2ecd57362010f54271bfb0b6289780ace527babd496 |
memory/1512-134-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\yf2s3nrj\CSC627A4CBA2364EA1A72068F7789D464.TMP
| MD5 | fcc8d294a441071554b3ea9bdc6dc735 |
| SHA1 | 0062ae25b0e570dc6e6d940736eac4aa5e39f2e1 |
| SHA256 | 2e9bcac718dfe2ba70c6d70e8c76a156e01a735bb50d357f5fe5ccd1f1719f23 |
| SHA512 | 4a8f4f24a1edab1ed03ff53ab6530ea363d933c5bc62b02367f6cfdb133f991db7b360b0c6546acabdbfca0fff4efc64aa95f69ce42877c68d9976a952fc8841 |
C:\Users\Admin\AppData\Local\Temp\RES64A5.tmp
| MD5 | d42ab9788924a6aabd3b28ab0d2794bf |
| SHA1 | e283de131ee8015488e9c5a3d04e6c9d73ffb78e |
| SHA256 | bdf4fe08c466c4466c1fa07749ed0974a1d83670201930d3b5b23a3de1a3cf27 |
| SHA512 | 24eb276fb31e9e58d724521cdcfa665c2dc08f9ec45e980ba5aa876fa9cced9d78707501737a80cd32aa4621b51d93d3fca0b3dbb0ead241c3ef84a17c23f726 |
C:\Users\Admin\AppData\Local\Temp\yf2s3nrj\yf2s3nrj.dll
| MD5 | 7db050640cb2b4b414d56bff95a35ced |
| SHA1 | cc52eeb148791f72fd33b4869e4b78027016eb4e |
| SHA256 | 65715826c37b7edb508daeae8acada8f5ca9249e97cd3b8ac36b62a07fa6d837 |
| SHA512 | a327bd2cc3c247802a96300942af56ac4f965b1af39ba67b1431b5c3cad2818b8035220f00c340ca71490f43952f821a8408cdd7e339278b4c400120ef789fbf |
C:\Users\Admin\AppData\Local\Temp\yf2s3nrj\yf2s3nrj.pdb
| MD5 | 12c82bf70afcb0bb8a2904c4ed4c813a |
| SHA1 | c90a0cd8744b6189442a8fe32d717a6a71437f04 |
| SHA256 | 3246de4d50189ae11b38f8aac4f51627c0510960da668b72e3f67892f1cfe00c |
| SHA512 | 252f0d160e5ab6d9a97b10c1b3e564d58954763a0dcce334d1637156b9f19a581e6d330fccd123565cde135e6c6ade73c11578528cbefbf28663c91dea93ce34 |
memory/1640-139-0x00000000050E0000-0x0000000005172000-memory.dmp
memory/1640-140-0x0000000005780000-0x000000000581C000-memory.dmp
memory/4592-141-0x0000000000000000-mapping.dmp
memory/4592-142-0x0000000000400000-0x0000000000456000-memory.dmp
memory/4592-143-0x0000000074DD0000-0x0000000075381000-memory.dmp
memory/4592-144-0x0000000074DD0000-0x0000000075381000-memory.dmp