Analysis Overview
SHA256
05e0f79a1c435ee4d5f914b576b8d9c4a766895aad1da9186ac5a49cc98b3657
Threat Level: Known bad
The file AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe was found to be: Known bad.
Malicious Activity Summary
Remcos
Loads dropped DLL
Adds Run key to start application
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of SetThreadContext
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Windows directory
Program crash
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-15 06:53
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-15 06:53
Reported
2024-02-15 06:55
Platform
win7-20231215-en
Max time kernel
150s
Max time network
120s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\concentus = "C:\\Users\\Admin\\AppData\\Local\\Temp\\vkstregningerne\\Euphuists.exe" | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\jumpsuit.lnk | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2044 set thread context of 696 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Voksaftryk.Unw244 | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
| File opened for modification | C:\Windows\resources\0409\Halvlangt.lre | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe
"C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe"
C:\Program Files (x86)\windows mail\wab.exe
"C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe"
Network
| Country | Destination | Domain | Proto |
| VN | 103.183.115.241:80 | 103.183.115.241 | tcp |
Files
\Users\Admin\AppData\Local\Temp\nso646F.tmp\System.dll
| MD5 | cff85c549d536f651d4fb8387f1976f2 |
| SHA1 | d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e |
| SHA256 | 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8 |
| SHA512 | 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88 |
memory/2044-24-0x0000000077040000-0x00000000771E9000-memory.dmp
memory/2044-25-0x0000000077230000-0x0000000077306000-memory.dmp
memory/2044-26-0x0000000074700000-0x0000000074707000-memory.dmp
memory/696-27-0x0000000077040000-0x00000000771E9000-memory.dmp
memory/696-28-0x0000000077266000-0x0000000077267000-memory.dmp
memory/696-29-0x0000000077230000-0x0000000077306000-memory.dmp
memory/696-33-0x0000000077230000-0x0000000077306000-memory.dmp
memory/696-34-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-35-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-31-0x0000000001340000-0x0000000006DFA000-memory.dmp
memory/696-36-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-37-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-38-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-39-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-40-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-41-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-42-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-43-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-44-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-45-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-53-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-54-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-52-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-51-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-50-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-49-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-48-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-47-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-46-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-58-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-60-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-61-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-62-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-63-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-64-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-65-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-66-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-67-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-68-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-70-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-71-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-72-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-73-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-74-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-75-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-76-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-77-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-78-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-79-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-80-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-81-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-82-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-83-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-84-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-87-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-86-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-85-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-88-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-89-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-90-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-92-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-94-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-93-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-91-0x00000000002D0000-0x0000000001332000-memory.dmp
memory/696-95-0x00000000002D0000-0x0000000001332000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-15 06:53
Reported
2024-02-15 06:55
Platform
win10v2004-20231215-en
Max time kernel
36s
Max time network
57s
Command Line
Signatures
Remcos
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\concentus = "C:\\Users\\Admin\\AppData\\Local\\Temp\\vkstregningerne\\Euphuists.exe" | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\jumpsuit.lnk | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Suspicious use of NtCreateThreadExHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3852 set thread context of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\resources\0409\Halvlangt.lre | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
| File opened for modification | C:\Windows\Voksaftryk.Unw244 | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\windows mail\wab.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3852 wrote to memory of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
| PID 3852 wrote to memory of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
| PID 3852 wrote to memory of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
| PID 3852 wrote to memory of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
| PID 3852 wrote to memory of 872 | N/A | C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe | C:\Program Files (x86)\windows mail\wab.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe
"C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe"
C:\Program Files (x86)\windows mail\wab.exe
"C:\Users\Admin\AppData\Local\Temp\AKBANK 002'den oluşturulan fatura ödemesiMerkantiliserendes.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| VN | 103.183.115.241:80 | 103.183.115.241 | tcp |
| US | 8.8.8.8:53 | 241.115.183.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsq54A9.tmp\System.dll
| MD5 | cff85c549d536f651d4fb8387f1976f2 |
| SHA1 | d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e |
| SHA256 | 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8 |
| SHA512 | 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88 |
memory/3852-23-0x00000000779E1000-0x0000000077B01000-memory.dmp
memory/3852-24-0x0000000074630000-0x0000000074637000-memory.dmp
memory/872-25-0x0000000077A68000-0x0000000077A69000-memory.dmp
memory/872-26-0x00000000779E1000-0x0000000077B01000-memory.dmp
memory/872-28-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-30-0x00000000779E1000-0x0000000077B01000-memory.dmp
memory/872-31-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-32-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-29-0x0000000001E60000-0x000000000791A000-memory.dmp
memory/872-33-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-34-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-35-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-36-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-37-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-38-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-39-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-40-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-41-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-42-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-43-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-44-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-45-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-46-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-47-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-48-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-49-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-50-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-51-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-52-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-53-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-54-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-55-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-56-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-57-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-58-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-59-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-60-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-61-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-64-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-65-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-66-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-67-0x0000000000C00000-0x0000000001E54000-memory.dmp
memory/872-68-0x0000000000C00000-0x0000000001E54000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-02-15 06:53
Reported
2024-02-15 06:55
Platform
win7-20231129-en
Max time kernel
117s
Max time network
117s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 220
Network
Files
Analysis: behavioral4
Detonation Overview
Submitted
2024-02-15 06:53
Reported
2024-02-15 06:55
Platform
win10v2004-20231222-en
Max time kernel
90s
Max time network
148s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 904 wrote to memory of 1012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 904 wrote to memory of 1012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1012 -ip 1012
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1012 -s 612
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |