Analysis
- max time kernel
91s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
13/11/2022, 23:54
Static task
static1
Behavioral task
behavioral1
Sample
fatura.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
fatura.exe
Resource
win10v2004-20220812-en
General
- Target fatura.exe
- Size 649KB
- Sample221113-3xt77agh4x
- SHA256 2b05c82d97fec0402f8a03acf466c13c09a69cebda207c35cedb40102bb8cad8
- MD5 7a5ddd4ce3d1a026e2ef0f93e91fb778
- SHA1 891f2d3ac09082b5c1a441e04c94a83498817e1f
- SHA512 e8558d231b957a1948d69310ccf879cd0ffa85b161bac396b21495d914bbf03951662bb2fcff0c2afe8b1ffa744792f775dfcf011434dd47927cda2147cc26a7
- SSDEEP 12288:vSoiM/U057k2q+1YG28GHd6Pp7SxDGguk7t7NDnu6:bRqQ728md6x7SsgtJ7xnu6
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5402813712:AAG__8vfwqo_1K9XHIpxzTR9T7UW4raysO4/sendMessage?chat_id=5034680713
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/3020-144-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions fatura.exe - Looks for VMWare Tools registry key 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools fatura.exe - Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion fatura.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion fatura.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation fatura.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 46 checkip.dyndns.org - Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum fatura.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 fatura.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4720 set thread context of 3020 4720 fatura.exe 93 - 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 4800 3020 WerFault.exe 93 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2808 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3020 fatura.exe 980 powershell.exe 980 powershell.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3020 fatura.exe Token: SeDebugPrivilege 980 powershell.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4720 wrote to memory of 980 4720 fatura.exe 89 PID 4720 wrote to memory of 980 4720 fatura.exe 89 PID 4720 wrote to memory of 980 4720 fatura.exe 89 PID 4720 wrote to memory of 2808 4720 fatura.exe 91 PID 4720 wrote to memory of 2808 4720 fatura.exe 91 PID 4720 wrote to memory of 2808 4720 fatura.exe 91 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93 PID 4720 wrote to memory of 3020 4720 fatura.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\fatura.exe"C:\Users\Admin\AppData\Local\Temp\fatura.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\muUfIVIw.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:980
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\muUfIVIw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7DEA.tmp"2⤵
- Creates scheduled task(s)
PID:2808
-
-
C:\Users\Admin\AppData\Local\Temp\fatura.exe"C:\Users\Admin\AppData\Local\Temp\fatura.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3020 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 14923⤵
- Program crash
PID:4800
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3020 -ip 30201⤵PID:3460
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\fatura.exe.log
- Size 1KB
- SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
- MD5 e08f822522c617a40840c62e4b0fb45e
- SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
- SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp7DEA.tmp
- Size 1KB
- SHA256 4a831c00e86c378ea96ff747a70c006d72713af8cf62bee5b90911bd44f8a55d
- MD5 e02d7db094ddb901f71e1e831e9d2d7a
- SHA1 87bcf01c02461e93a4da6df2f2300128fe1898fc
- SHA512 a011b1eed5b545991746a71b6fd5136e32896f39d961ad6703de6266c8f1319896911aba404275dffa0be82746f7b968c196cf83e7eae00c918d1835302c0919
- MD5 SHA1 SHA512