Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
18-11-2024 04:01
Static task
static1
Behavioral task
behavioral1
Sample
rCEMG242598.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
rCEMG242598.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20241023-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
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Target
rCEMG242598.exe
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Size
667KB
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MD5
d041f3db7efd3c320a10beb6a5aefb46
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SHA1
36b423dd9e91db75a79a73ac5b69ab5e0c800e51
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SHA256
f0e96ef67f19326d7a5333b21da44bf521dee61bbd3eac4d7fdd86b24babcaeb
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SHA512
6676951ac8c89327b63f4e48ed908ee3c0f16bafb59f3080ead08addb0e5d6213d6d55d532f496ec4602614ed9f00f4984fc0bb741be491ad7d58b35a85a8b1b
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SSDEEP
12288:fTkuHDduDlik/sI71e9C8sQKnsk2axTsb:fTRodsknaqxTsb
Malware Config
Extracted
vipkeylogger
https://api.telegram.org/bot8148338634:AAFvLNrhxaF7bMPzQMLbUnueRMJvDIi5kcU/sendMessage?chat_id=7698865320
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Loads dropped DLL 1 IoCs
pid Process 2292 rCEMG242598.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 4 drive.google.com 5 drive.google.com -
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 14 checkip.dyndns.org -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 1428 rCEMG242598.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2292 rCEMG242598.exe 1428 rCEMG242598.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2292 set thread context of 1428 2292 rCEMG242598.exe 31 -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Kernelder\nyxis.ini rCEMG242598.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 rCEMG242598.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rCEMG242598.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1428 rCEMG242598.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2292 rCEMG242598.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1428 rCEMG242598.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31 PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31 PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31 PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31 PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31 PID 2292 wrote to memory of 1428 2292 rCEMG242598.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\rCEMG242598.exe"C:\Users\Admin\AppData\Local\Temp\rCEMG242598.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2292 -
C:\Users\Admin\AppData\Local\Temp\rCEMG242598.exe"C:\Users\Admin\AppData\Local\Temp\rCEMG242598.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1428
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD575ed96254fbf894e42058062b4b4f0d1
SHA1996503f1383b49021eb3427bc28d13b5bbd11977
SHA256a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA51258174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4