Analysis
- max time kernel
74s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220721-en - resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system - submitted
26/07/2022, 16:07
Static task
static1
Behavioral task
behavioral1
Sample
f18592fd1912ac0404565944991e77a1.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
f18592fd1912ac0404565944991e77a1.exe
Resource
win10v2004-20220721-en
General
- Target f18592fd1912ac0404565944991e77a1.exe
- Size 885KB
- Sample220726-tkmsxabdcl
- SHA256 806bfede204f2390d3e142735dfb3ee25d440eef2ef1966ee1caca991ca5a60a
- MD5 f18592fd1912ac0404565944991e77a1
- SHA1 2e1223248dc170ca557345e9bd0a8cdf62f2986d
- SHA512 85cc334a704c21239acef61a4ffe3b48116e33adb1b7a828958da7a95ed708d56196472a41be2d0dfa0b7934c8983e1657b79f04093d13660621593b2dc28a3d
- MD5 SHA1 SHA512
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
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Port
587
-
Username
-
Password
LYSV$*b4
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/1356-141-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - 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-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation f18592fd1912ac0404565944991e77a1.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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f18592fd1912ac0404565944991e77a1.exe Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f18592fd1912ac0404565944991e77a1.exe Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f18592fd1912ac0404565944991e77a1.exe - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 12 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4996 set thread context of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2288 schtasks.exe - Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 4996 f18592fd1912ac0404565944991e77a1.exe 4996 f18592fd1912ac0404565944991e77a1.exe 1356 f18592fd1912ac0404565944991e77a1.exe 208 powershell.exe 208 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4996 f18592fd1912ac0404565944991e77a1.exe Token: SeDebugPrivilege 1356 f18592fd1912ac0404565944991e77a1.exe Token: SeDebugPrivilege 208 powershell.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4996 wrote to memory of 208 4996 f18592fd1912ac0404565944991e77a1.exe 83 PID 4996 wrote to memory of 208 4996 f18592fd1912ac0404565944991e77a1.exe 83 PID 4996 wrote to memory of 208 4996 f18592fd1912ac0404565944991e77a1.exe 83 PID 4996 wrote to memory of 2288 4996 f18592fd1912ac0404565944991e77a1.exe 85 PID 4996 wrote to memory of 2288 4996 f18592fd1912ac0404565944991e77a1.exe 85 PID 4996 wrote to memory of 2288 4996 f18592fd1912ac0404565944991e77a1.exe 85 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 PID 4996 wrote to memory of 1356 4996 f18592fd1912ac0404565944991e77a1.exe 87 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f18592fd1912ac0404565944991e77a1.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 f18592fd1912ac0404565944991e77a1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4996 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jAlJQbFTKpZvn.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:208
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jAlJQbFTKpZvn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4FC6.tmp"2⤵
- Creates scheduled task(s)
PID:2288
-
-
C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"C:\Users\Admin\AppData\Local\Temp\f18592fd1912ac0404565944991e77a1.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1356
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f18592fd1912ac0404565944991e77a1.exe.log
- Size 1KB
- SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
- MD5 e08f822522c617a40840c62e4b0fb45e
- SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
- SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp4FC6.tmp
- Size 1KB
- SHA256 8d6110bedb6fa70737db5210212d9540f73bd77530d3bca2ad66bb96670b1f0e
- MD5 b5e5d540a101ab637d2511020798c5be
- SHA1 dc7a1cfc393a778dfebab4edbfa83dfade34b3e4
- SHA512 6c5179f09881e8326e388ed74937f5512cc5e1075596cbd004b0766c1e8cb1b3efdcdb78a40e62f2cacc91e1261e42e1b489b54f526a96ec71dbfb1df4ea482e
- MD5 SHA1 SHA512