Analysis Overview
SHA256
4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4
Threat Level: Known bad
The file 4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4 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 behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Analysis: static1
Detonation Overview
Reported
2022-07-12 04:51
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-07-12 04:51
Reported
2022-07-12 05:37
Platform
win7-20220414-en
Max time kernel
150s
Max time network
49s
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\cdCfTQ.url | C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1984 set thread context of 2040 | N/A | C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
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\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.exe
"C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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\um4cjhvh\um4cjhvh.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\RES5AC.tmp" "c:\Users\Admin\AppData\Local\Temp\um4cjhvh\CSCDC3B2B7C0004B6CAD404ABCF1B62220.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\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/1984-54-0x0000000000EB0000-0x0000000000F50000-memory.dmp
memory/1656-55-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\um4cjhvh\um4cjhvh.cmdline
| MD5 | 328c28b08993aa4e814d1abef3830d28 |
| SHA1 | a144b0f23fcc7e578ff378c8a5b06385355b8024 |
| SHA256 | 33691ca2dd437492be059b968a073ba28c77357be78c315cae14c75529ffc67b |
| SHA512 | d48c79d75a9b13a78212f70653db1687eb2f897ab000b4dd808c2c253403167d108f94d24806bc0e215b908098914c4dd8cbaa71c1b7c3360a3855fcdc0c4acf |
\??\c:\Users\Admin\AppData\Local\Temp\um4cjhvh\um4cjhvh.0.cs
| MD5 | e1149e216633c8e8c631c7167ce311f6 |
| SHA1 | d1d76efb2e300171dfa82d66c55ae601714f8e94 |
| SHA256 | 85fa29630c6d39bca2e00a45dd8fac6f9074555f2abca832a56f4732fb1bd911 |
| SHA512 | 06d579f2490d71cf17839bf1dcf750edc5334aee7385165069c07545471a550454f5f9598adfa2827cb2967b94eae9b1325050ca0da7545d04f7430297643061 |
memory/1992-58-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\um4cjhvh\CSCDC3B2B7C0004B6CAD404ABCF1B62220.TMP
| MD5 | 68737b20d348fb9c323a6931e64b6670 |
| SHA1 | 64dd15ea0f7a234d4f55874e76e1a7f389d27d48 |
| SHA256 | 33d4cfd96b67c37935cb7a46e3a59d6b52c15f4ba92c7f241147ca624ee39b3a |
| SHA512 | 20baf2154674bb6a2a49b26c8721e405d3baeac0306ed8ef0e13fea2fbf17974b98fdfca667a6314f5bc06adb41496ceed4bae9c62490a2144ac133d2185c817 |
C:\Users\Admin\AppData\Local\Temp\RES5AC.tmp
| MD5 | a904b3687c5d1c27b84a1366ff2ca542 |
| SHA1 | e1ada9785ac63c66280368b1dca08c9aa01903b1 |
| SHA256 | aa4b188bb89987f2399eafd734fc7e0934f33f0d0feb0bfeb8f92508071de5fe |
| SHA512 | 47120749302f61ae152759e8460a7fd2e527a9d0bbf104812527debaf2d83e382e14a273a6ba3d6e4260b2c592ae0e5fca5784123fc547c235318dceb229b09a |
C:\Users\Admin\AppData\Local\Temp\um4cjhvh\um4cjhvh.pdb
| MD5 | 51e43eb8a7acd744bc2a84dd8fbff96a |
| SHA1 | 79b49dca70c80a032c77b9cc19f7481ddd824f93 |
| SHA256 | 3059ef1095b6359edb763cbf359dd21585a8839bdc8468e3a8eba69f520ee162 |
| SHA512 | 3d7e40d8f57075bd17a7cbb1647a93444c52d5e786faa51054e319a224379ad129ec281cf050a5cb1933aa9c0ab33e19023dddba1e517326066adba8c88e01e5 |
C:\Users\Admin\AppData\Local\Temp\um4cjhvh\um4cjhvh.dll
| MD5 | 1c353caa3f70c384b7bbcd164e3d3035 |
| SHA1 | 9f532e135bcda6c33de68fb0c0228fc2a83e74db |
| SHA256 | 6a68fdd92de2e465cb38e9d401f749d4001427e90f7bf058f79c033e04cb9bb1 |
| SHA512 | 2f3acd3a374531624e43e59638b2e3e58a2be7df24ea608d63a9202e4f79c8a08b8d26e4ce820b87bf2e71d77328fdcef003dd9074e2351d175d61a2bae962a9 |
memory/1984-63-0x0000000000380000-0x000000000038A000-memory.dmp
memory/1984-64-0x0000000000BE0000-0x0000000000C40000-memory.dmp
memory/1984-65-0x00000000004F0000-0x00000000004FC000-memory.dmp
memory/1984-66-0x00000000753C1000-0x00000000753C3000-memory.dmp
memory/1984-67-0x0000000004350000-0x00000000043A6000-memory.dmp
memory/2040-68-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-69-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-71-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-72-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-73-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-74-0x0000000000451E5E-mapping.dmp
memory/2040-76-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-78-0x0000000000400000-0x0000000000456000-memory.dmp
memory/2040-80-0x0000000074720000-0x0000000074CCB000-memory.dmp
memory/2040-81-0x0000000074720000-0x0000000074CCB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-07-12 04:51
Reported
2022-07-12 05:37
Platform
win10v2004-20220414-en
Max time kernel
151s
Max time network
154s
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\cdCfTQ.url | C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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 524 set thread context of 440 | N/A | C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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
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\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.exe
"C:\Users\Admin\AppData\Local\Temp\4cdba4cf50744aa2b8b62a3567c3fc6936df295c9e9fe4d9677d1f77c88bdad4.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\zizs2kqu\zizs2kqu.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\RESEB7E.tmp" "c:\Users\Admin\AppData\Local\Temp\zizs2kqu\CSC52961BFAB5AE47FE8014776AA1B376A.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\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
Network
| Country | Destination | Domain | Proto |
| US | 13.107.21.200:443 | tcp | |
| US | 104.208.16.89:443 | tcp | |
| NL | 8.238.21.254:80 | tcp | |
| NL | 8.238.21.254:80 | tcp | |
| NL | 8.238.21.254:80 | 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 |
| 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/524-130-0x00000000004D0000-0x0000000000570000-memory.dmp
memory/3304-131-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\zizs2kqu\zizs2kqu.cmdline
| MD5 | a6d79951cad18e612ba2a0cde7c5cd55 |
| SHA1 | f581a48cd1599d4add4d96c362c1f29add3b3e59 |
| SHA256 | f681e62befeab0c3ec6f05b2d0a78ef76d8a9e89a0ac16905e26d94e8c78f8f5 |
| SHA512 | 15cd2fefe513a20216d7621e5ac81a1af06b91c1ba1a1e1e056a7d7f5dfa92c283ea4dd457a46dfc7e154e93a1266eb1a7e3f8862ad3217a702f654933ee9586 |
\??\c:\Users\Admin\AppData\Local\Temp\zizs2kqu\zizs2kqu.0.cs
| MD5 | e1149e216633c8e8c631c7167ce311f6 |
| SHA1 | d1d76efb2e300171dfa82d66c55ae601714f8e94 |
| SHA256 | 85fa29630c6d39bca2e00a45dd8fac6f9074555f2abca832a56f4732fb1bd911 |
| SHA512 | 06d579f2490d71cf17839bf1dcf750edc5334aee7385165069c07545471a550454f5f9598adfa2827cb2967b94eae9b1325050ca0da7545d04f7430297643061 |
memory/4092-134-0x0000000000000000-mapping.dmp
\??\c:\Users\Admin\AppData\Local\Temp\zizs2kqu\CSC52961BFAB5AE47FE8014776AA1B376A.TMP
| MD5 | 1264be62f63df4947661aec79fc5bc69 |
| SHA1 | fce00dc03733a8bb471e51dd11bf2e24cddd313e |
| SHA256 | 987a0c4cc78d697d06194ef3f707deaa0d3d1c319d12f5c03a7949a85d7a24ab |
| SHA512 | 45b96d48598e1ab234c95460a058ef48730276bb3eb604721b30e9dfb7f464968df2d90c5552aee417ae0cd74c45e618766c3e97e3ac587083208669c641b296 |
C:\Users\Admin\AppData\Local\Temp\RESEB7E.tmp
| MD5 | ab3e237bdc750955219edaf282da51b4 |
| SHA1 | e3412eeab664706b44e135295aeff2c253ebca90 |
| SHA256 | e0681a6ec143c392d5dbfae4f8baa0ee9403e313080b339afa0ef4c37f1f130a |
| SHA512 | 0efb3168a736446780189ab16f97339911d939df3f27f665af183d327cbb89233c7287ae6babf7589d28cc69eefbcd89358d81df3e1a25e916fc08046a3450a7 |
C:\Users\Admin\AppData\Local\Temp\zizs2kqu\zizs2kqu.dll
| MD5 | 16ceacefd4103c7dd8a05ddef0be979e |
| SHA1 | 338c01e152415af573a60e6482244ee66f51d290 |
| SHA256 | bca4e6a7061ef5a87373024c3f8e40a59cc9861de7c7b43edb8ff10f8798731f |
| SHA512 | 8f4c5da85891bf72804d63f60b592be41a11b65be393b293ca63e1767148fbdea07c8e2a099c4622a7da6b167b9be2d9b211e497e4d27ae8eb7eb6e298a170d6 |
C:\Users\Admin\AppData\Local\Temp\zizs2kqu\zizs2kqu.pdb
| MD5 | 707ff7d4a6825c5d8b4a85cb1df59170 |
| SHA1 | 9a8a9799395b61cb2d0b8ea1c4cf3f299a14a7e2 |
| SHA256 | 9400b8b98189734bac1c971088405524d69f6f5cd70bd277aaeae26a6ccf03cd |
| SHA512 | 681760681a1375bdf5ee0179d49ec43460a6d205f8c717416591747449a222794d698651e4096c62f68ae2b214441b819d2427dbe29fbff870d039cfaba54b34 |
memory/524-139-0x0000000004F60000-0x0000000004FF2000-memory.dmp
memory/524-140-0x00000000055C0000-0x000000000565C000-memory.dmp
memory/2856-141-0x0000000000000000-mapping.dmp
memory/440-142-0x0000000000000000-mapping.dmp
memory/440-143-0x0000000000400000-0x0000000000456000-memory.dmp
memory/440-144-0x0000000074A30000-0x0000000074FE1000-memory.dmp
memory/440-145-0x0000000074A30000-0x0000000074FE1000-memory.dmp