Analysis
- max time kernel
127s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
20/05/2022, 22:47
Static task
static1
Behavioral task
behavioral1
Sample
7605122309.exe
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
7605122309.exe
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target 7605122309.exe
- Size 1.1MB
- Sample220520-2qnldsaghj
- SHA256 630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb
- MD5 ad19d31c1acf47a74573444337f81c1c
- SHA1 9e51312eba1d12c9b141700d50db9349f349620b
- SHA512 50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
matiex
Credentials
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
HYF76io83%$6***
Signatures
- Matiex Main Payload 4 IoCs
resource yara_rule behavioral2/memory/2496-130-0x0000000000D20000-0x0000000000E40000-memory.dmp family_matiex behavioral2/files/0x0006000000022ec7-136.dat family_matiex behavioral2/files/0x0006000000022ec7-137.dat family_matiex behavioral2/memory/2372-142-0x0000000000800000-0x0000000000874000-memory.dmp family_matiex - Executes dropped EXE 2 IoCs
pid Process 4516 sogh.exe 2372 InstallUtil.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation 7605122309.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smgu = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\sogh.exe" reg.exe - Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 33 checkip.dyndns.org 35 freegeoip.app 36 freegeoip.app - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4516 set thread context of 2372 4516 sogh.exe 90 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 1112 2372 WerFault.exe 90 - Suspicious behavior: EnumeratesProcesses 25 IoCs
pid Process 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 2496 7605122309.exe 4516 sogh.exe 4516 sogh.exe 4516 sogh.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2496 7605122309.exe Token: SeDebugPrivilege 4516 sogh.exe Token: SeDebugPrivilege 2372 InstallUtil.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2496 wrote to memory of 656 2496 7605122309.exe 86 PID 2496 wrote to memory of 656 2496 7605122309.exe 86 PID 2496 wrote to memory of 656 2496 7605122309.exe 86 PID 656 wrote to memory of 636 656 cmd.exe 88 PID 656 wrote to memory of 636 656 cmd.exe 88 PID 656 wrote to memory of 636 656 cmd.exe 88 PID 2496 wrote to memory of 4516 2496 7605122309.exe 89 PID 2496 wrote to memory of 4516 2496 7605122309.exe 89 PID 2496 wrote to memory of 4516 2496 7605122309.exe 89 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 PID 4516 wrote to memory of 2372 4516 sogh.exe 90 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 InstallUtil.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\7605122309.exe"C:\Users\Admin\AppData\Local\Temp\7605122309.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogh.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:656 -
C:\Windows\SysWOW64\reg.exeREG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v smgu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\sogh.exe"3⤵
- Adds Run key to start application
PID:636
-
-
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C:\Users\Admin\sogh.exe"C:\Users\Admin\sogh.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2372 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 19844⤵
- Program crash
PID:1112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2372 -ip 23721⤵PID:1508
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
- Size 41KB
- SHA256 ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3
- MD5 5d4073b2eb6d217c19f2b22f21bf8d57
- SHA1 f0209900fbf08d004b886a0b3ba33ea2b0bf9da8
- SHA512 9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159
- SSDEEP 384:qtpFVLK0MsihB9VKS7xdgl6KJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+RPZTg:GBMs2SqdSZ6Iq8BxTfqWR8h7ukP
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
- Size 41KB
- SHA256 ac1a3f21fcc88f9cee7bf51581eafba24cc76c924f0821deb2afdf1080ddf3d3
- MD5 5d4073b2eb6d217c19f2b22f21bf8d57
- SHA1 f0209900fbf08d004b886a0b3ba33ea2b0bf9da8
- SHA512 9ac94880684933ba3407cdc135abc3047543436567af14cd9269c4adc5a6535db7b867d6de0d6238a21b94e69f9890dbb5739155871a624520623a7e56872159
- SSDEEP 384:qtpFVLK0MsihB9VKS7xdgl6KJ9Yl6dnPU3SERztmbqCJstdMardz/JikPZ+RPZTg:GBMs2SqdSZ6Iq8BxTfqWR8h7ukP
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\sogh.exe
- Size 1.1MB
- SHA256 630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb
- MD5 ad19d31c1acf47a74573444337f81c1c
- SHA1 9e51312eba1d12c9b141700d50db9349f349620b
- SHA512 50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720
- SSDEEP 6144:qiHAgbCa8sGQTjmWLTMvQbetOaDUTqPKKwmijSiAN+yBbA:DHX8kTaWLYBjU0J+yp
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\sogh.exe
- Size 1.1MB
- SHA256 630bb247d9c8f85f918a274ef04c5c5df8347176444b9e0222b68648ca999ccb
- MD5 ad19d31c1acf47a74573444337f81c1c
- SHA1 9e51312eba1d12c9b141700d50db9349f349620b
- SHA512 50b196e5b092d2c5e21099aaf59687472b0d1d7c06a75204f08fd75a5d2180a7deaf705de7022c7b6d06da3022b104b932530360b60a25accc87bd71fb18a720
- SSDEEP 6144:qiHAgbCa8sGQTjmWLTMvQbetOaDUTqPKKwmijSiAN+yBbA:DHX8kTaWLYBjU0J+yp
- MD5 SHA1 SHA512 SSDEEP