Analysis
- max time kernel
91s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
10/10/2022, 06:51
Static task
static1
Behavioral task
behavioral1
Sample
YjukYSejyzZXpHH.exe
Resource
win7-20220812-en
13 signatures
150 seconds
Behavioral task
behavioral2
Sample
YjukYSejyzZXpHH.exe
Resource
win10v2004-20220812-en
13 signatures
150 seconds
General
- Target YjukYSejyzZXpHH.exe
- Size 881KB
- Sample221010-hmgtwsbbbm
- SHA256 2ce097bd6170efdac97fff7c165c836764ff12007b3407c6d28d2f49e68f1aa7
- MD5 3c7edc2c95fe0c763ff0da0fd5583baf
- SHA1 6bf0913a26c0e3280e1f840e5d0828f10785f43d
- SHA512 c4d7019c219686a98cb8a5f8b6af1bfca74013878204e5e058eb4cf9ab5e6a2d1a7922b91cf7977c29f925ac48d7a6c05a78d36880e15a1010a1fdc94d684420
- SSDEEP 12288:ITQO2iNUJ2uYO7sDxtl9zJL5lRIWTybwN7VJScXN4GMicJyrOz/K4:eD1j1+AtfVL53IW584IHzy
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
nPrbBT)8
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/2408-139-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - 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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 YjukYSejyzZXpHH.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 YjukYSejyzZXpHH.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 YjukYSejyzZXpHH.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 30 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4820 set thread context of 2408 4820 YjukYSejyzZXpHH.exe 91 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2408 YjukYSejyzZXpHH.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2408 YjukYSejyzZXpHH.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 PID 4820 wrote to memory of 2408 4820 YjukYSejyzZXpHH.exe 91 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 YjukYSejyzZXpHH.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 YjukYSejyzZXpHH.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"C:\Users\Admin\AppData\Local\Temp\YjukYSejyzZXpHH.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2408
-
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\YjukYSejyzZXpHH.exe.log
- Size 1KB
- SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
- MD5 e08f822522c617a40840c62e4b0fb45e
- SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
- SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
- MD5 SHA1 SHA512