Analysis Overview
SHA256
fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1
Threat Level: Known bad
The file fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1 was found to be: Known bad.
Malicious Activity Summary
ISR Stealer
ISR Stealer Payload
Nirsoft
NirSoft WebBrowserPassView
NirSoft MailPassView
UPX packed file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Accesses Microsoft Outlook accounts
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-03-15 13:55
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-03-15 13:55
Reported
2022-03-15 13:59
Platform
win7-20220311-en
Max time kernel
4294180s
Max time network
143s
Command Line
Signatures
ISR Stealer
ISR Stealer Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1620 set thread context of 1668 | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | C:\Users\Admin\AppData\Local\Temp\cvtres.exe |
| PID 1668 set thread context of 920 | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | C:\Users\Admin\AppData\Local\Temp\cvtres.exe |
| PID 920 set thread context of 1820 | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | C:\Users\Admin\AppData\Local\Temp\cvtres.exe |
| PID 920 set thread context of 364 | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | C:\Users\Admin\AppData\Local\Temp\cvtres.exe |
| PID 920 set thread context of 1136 | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | C:\Users\Admin\AppData\Local\Temp\cvtres.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\cvtres.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe
"C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe"
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
"C:\Users\Admin\AppData\Local\Temp\cvtres.exe"
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | www.rampymc.binhoster.com | udp |
Files
memory/1620-54-0x0000000075471000-0x0000000075473000-memory.dmp
\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1668-56-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1668-58-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1668-60-0x0000000000400000-0x0000000000470000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1668-62-0x0000000000400000-0x0000000000470000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/920-69-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-71-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-73-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-75-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-77-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-79-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-81-0x0000000000400000-0x000000000045F000-memory.dmp
\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/920-83-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-85-0x0000000000400000-0x000000000045F000-memory.dmp
memory/920-87-0x0000000000400000-0x000000000045F000-memory.dmp
\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1820-89-0x0000000000400000-0x0000000000454000-memory.dmp
memory/1620-90-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/1820-93-0x0000000000400000-0x0000000000454000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1620-97-0x0000000074930000-0x0000000074EDB000-memory.dmp
memory/364-98-0x0000000000400000-0x0000000000426000-memory.dmp
\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/364-102-0x0000000000400000-0x0000000000426000-memory.dmp
memory/364-108-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1136-110-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1136-106-0x0000000000400000-0x000000000041F000-memory.dmp
memory/364-111-0x0000000000400000-0x0000000000426000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1820-101-0x0000000000400000-0x0000000000454000-memory.dmp
\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1620-92-0x0000000001F90000-0x0000000001F91000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cvtres.exe
| MD5 | ed797d8dc2c92401985d162e42ffa450 |
| SHA1 | 0f02fc517c7facc4baefde4fe9467fb6488ebabe |
| SHA256 | b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e |
| SHA512 | e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2 |
memory/1136-115-0x0000000000400000-0x000000000041F000-memory.dmp
memory/1136-116-0x0000000000400000-0x000000000041F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-03-15 13:55
Reported
2022-03-15 13:59
Platform
win10v2004-en-20220113
Max time kernel
159s
Max time network
179s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 368 wrote to memory of 1044 | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 368 wrote to memory of 1044 | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 368 wrote to memory of 1044 | N/A | C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe | C:\Windows\SysWOW64\fondue.exe |
| PID 1044 wrote to memory of 1336 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
| PID 1044 wrote to memory of 1336 | N/A | C:\Windows\SysWOW64\fondue.exe | C:\Windows\system32\FonDUE.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe
"C:\Users\Admin\AppData\Local\Temp\fb476e8cd10587ebb49487f1d95165fc1a3065038edcea30c725d9ad1ab015a1.exe"
C:\Windows\SysWOW64\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
C:\Windows\system32\FonDUE.EXE
"C:\Windows\sysnative\FonDUE.EXE" /enable-feature:NetFx3 /caller-name:mscoreei.dll
Network
| Country | Destination | Domain | Proto |
| US | 20.189.173.7:443 | tcp | |
| NL | 84.53.175.122:80 | tcp | |
| NL | 84.53.175.122:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | crl4.digicert.com | udp |
| US | 93.184.220.29:80 | crl4.digicert.com | tcp |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |