Analysis
- max time kernel
143s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
17/10/2024, 02:11
Static task
static1
Behavioral task
behavioral1
Sample
a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe
Resource
win10v2004-20241007-en
General
- Target a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe
- Size 697KB
- Sample241017-cmb1raxanb
- SHA256 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd
- MD5 c333230877f39850bf7978774a2af0f0
- SHA1 af44691d3855acf84aa883121d410d7a2476722f
- SHA512 3af1b0fde209e8388176d6d72fcad0bf02e41f2d1e1ef7342dc0b5ce21c1485a50aff66d7ffbcad8491b15365dc156482c463be6dac096b7e677485c1b20d289
- SSDEEP 12288:o/yR+kRv9OnszAFZ4KKVeUaHu3PEvlhI4KUJEclSTxrpMjAVQ:5R+kV9On4KoV3PEthtEclSF1
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
-
vipkeylogger
-
Protocol
smtp
-
Host
mail.tmars.net
-
Port
587
-
Username
-
Password
More@123456789
-
Email to
Signatures
- VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
- 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 3 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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.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 39 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4188 set thread context of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 - System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4640 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 4640 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe Token: SeDebugPrivilege 4640 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 PID 4188 wrote to memory of 4640 4188 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe 102 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe"C:\Users\Admin\AppData\Local\Temp\a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4188 -
C:\Users\Admin\AppData\Local\Temp\a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe"C:\Users\Admin\AppData\Local\Temp\a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4640
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a8281f10a65d2066e0bb4d9089efbc567dedec223e6b77303223da17af9021dd.exe.log
- Size 1KB
- SHA256 8389118a63be5919309b12a91b0d3335be3d1a193cbe13a67a48bbbbe4a2fcdd
- MD5 7d7eacb72a1233d4e7b32fd5e289175b
- SHA1 272e4f6fb6b5ccb3cd31cf253573beba9bbedc77
- SHA512 9b487c870d1a6a81a0be1fb809c380e0b6812be2bee6fe926ad9ac5aaff081604ea9b68cbe4f951c927c6a6491b7678ff135ade28a46e0ffe5342e0d01b8cc56
- MD5 SHA1 SHA512