Analysis
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max time kernel
151s -
max time network
139s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
31-05-2021 11:27
Static task
static1
Behavioral task
behavioral1
Sample
Statement SKBMT 09418.exe
Resource
win7v20210410
Behavioral task
behavioral2
Sample
Statement SKBMT 09418.exe
Resource
win10v20210410
General
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Target
Statement SKBMT 09418.exe
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Size
993KB
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MD5
16fdc46350203434497e1741ea5cd20a
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SHA1
f75824509e9ce1b77194724fd34c60bc0c9d28f1
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SHA256
1018d102af9093b9a03abe9a660360db6be8f752d992bb7159475fccd78949f5
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SHA512
a71d6af40387a94c52d54438fea392969f5f0a330867dc7a2d05de5c07fdfb26724270ca3bbbfaf1ceddd2338254eb158e9ada092fa622315627f0b0553fee12
Malware Config
Signatures
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A310logger
A310 Logger is a .NET stealer/logger targeting passwords from browsers and email clients.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty Payload 2 IoCs
resource yara_rule behavioral1/memory/584-71-0x0000000000400000-0x0000000000418000-memory.dmp family_stormkitty behavioral1/memory/584-72-0x0000000000412452-mapping.dmp family_stormkitty -
A310logger Executable 2 IoCs
resource yara_rule behavioral1/memory/584-71-0x0000000000400000-0x0000000000418000-memory.dmp a310logger behavioral1/memory/584-72-0x0000000000412452-mapping.dmp a310logger -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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 7 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1104 set thread context of 764 1104 Statement SKBMT 09418.exe 29 PID 764 set thread context of 584 764 Statement SKBMT 09418.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 InstallUtil.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier InstallUtil.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 764 Statement SKBMT 09418.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 764 Statement SKBMT 09418.exe 764 Statement SKBMT 09418.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 1104 wrote to memory of 764 1104 Statement SKBMT 09418.exe 29 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30 PID 764 wrote to memory of 584 764 Statement SKBMT 09418.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\Statement SKBMT 09418.exe"C:\Users\Admin\AppData\Local\Temp\Statement SKBMT 09418.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Users\Admin\AppData\Local\Temp\Statement SKBMT 09418.exe"C:\Users\Admin\AppData\Local\Temp\Statement SKBMT 09418.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:764 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe"3⤵
- Checks processor information in registry
PID:584
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