Analysis Overview
SHA256
4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f
Threat Level: Known bad
The file 4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f was found to be: Known bad.
Malicious Activity Summary
Darkcomet
UPX packed file
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 13:08
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 13:08
Reported
2022-10-19 13:38
Platform
win7-20220901-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Darkcomet
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\reg.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\msoffice = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftOffice\\micoffice.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1740 set thread context of 1200 | N/A | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe |
| PID 884 set thread context of 1644 | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe |
| PID 884 set thread context of 920 | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe
"C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe"
C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe
"C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\ITYVJ.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "msoffice" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe" /f
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | shades.no-ip.org | udp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
Files
memory/1740-56-0x0000000002E00000-0x0000000002ED8000-memory.dmp
memory/1200-58-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-59-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-61-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-62-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-63-0x00000000004085D0-mapping.dmp
memory/1200-65-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-66-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-69-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1200-70-0x0000000075931000-0x0000000075933000-memory.dmp
memory/536-71-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\ITYVJ.bat
| MD5 | f07b93136766adced3c6f0d74d869da0 |
| SHA1 | 787c530f33687d758b41295e01d7a9a1bba3a467 |
| SHA256 | cd603067047c028fe12d4b099d13b3681dd698d25bc32474184e9d8edd3ed701 |
| SHA512 | 050105a5f14939a37f653421b24959cc90cb082b20df5bb1a81335fd0ad5e70c740b43f1d6df0fc7324551425894668acc3af0c533c7d90ff149d84e844c2d10 |
memory/572-73-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
memory/884-79-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
memory/884-83-0x0000000002ED0000-0x0000000002FA8000-memory.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
memory/920-96-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1644-91-0x00000000004085D0-mapping.dmp
memory/920-94-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-100-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-103-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-105-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-107-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-108-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-110-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-113-0x000000000048F888-mapping.dmp
memory/920-112-0x0000000000400000-0x00000000004B2000-memory.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | b0854ce2dd390e7824e0cf92df73923e |
| SHA1 | 257a4de4f2c89e000bc8211158d5e96ddd70acff |
| SHA256 | 6137b32220d18ad7b2a1edd568f1697022687cc40c40c32945d41acb2286d381 |
| SHA512 | 4118fdd3da61b38629331600cec3643c395b9d4d41d553e00a6a6777632ec4368df49c6db8233b97b0430cc00a220323197c17903e5470be17bf6d1e19e9e555 |
memory/1200-115-0x0000000000400000-0x000000000040B000-memory.dmp
memory/920-116-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-118-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/920-119-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1644-121-0x0000000000400000-0x000000000040B000-memory.dmp
memory/920-122-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-19 13:08
Reported
2022-10-19 13:38
Platform
win10v2004-20220901-en
Max time kernel
90s
Max time network
155s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe
"C:\Users\Admin\AppData\Local\Temp\4d4ca606e35160ef23c9a396bc1758fbcddd0e56f94d4b2c0ba41d70d9e5740f.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4580 -ip 4580
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 464
Network
| Country | Destination | Domain | Proto |
| US | 20.189.173.5:443 | tcp | |
| US | 8.253.208.120:80 | tcp | |
| US | 8.253.208.120:80 | tcp | |
| US | 8.253.208.120:80 | tcp |