Analysis
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max time kernel
149s -
max time network
147s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
28-12-2020 17:04
Static task
static1
Behavioral task
behavioral1
Sample
53c599ee6324db60c4b394722d950d3a.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
53c599ee6324db60c4b394722d950d3a.exe
Resource
win10v20201028
General
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Target
53c599ee6324db60c4b394722d950d3a.exe
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Size
594KB
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MD5
53c599ee6324db60c4b394722d950d3a
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SHA1
7a5d027376db62faecbe44d866a908f3915fc4f1
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SHA256
0d828c5af228839b87308f801d19ce5ea0ffc333eee641390c089207f16a96bf
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SHA512
b0c24a3a70d3bfa22164e711fe2357f0f7241f46502e2cfc660d7e2b2a76a4ad571f0044c44a1a547fe08b3432575e3eab286ec14cd699f3cac9ef5f1d7f8f9f
Malware Config
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 2 IoCs
resource yara_rule behavioral2/memory/2236-11-0x0000000006CA0000-0x0000000006CC4000-memory.dmp family_redline behavioral2/memory/2236-13-0x0000000009320000-0x0000000009342000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
pid Process 2236 bestof.exe -
resource yara_rule behavioral2/files/0x000200000001a50e-5.dat upx behavioral2/files/0x000200000001a50e-6.dat upx -
Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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 12 ip-api.com -
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 53c599ee6324db60c4b394722d950d3a.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 53c599ee6324db60c4b394722d950d3a.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2236 bestof.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1112 wrote to memory of 2236 1112 53c599ee6324db60c4b394722d950d3a.exe 78 PID 1112 wrote to memory of 2236 1112 53c599ee6324db60c4b394722d950d3a.exe 78 PID 1112 wrote to memory of 2236 1112 53c599ee6324db60c4b394722d950d3a.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\53c599ee6324db60c4b394722d950d3a.exe"C:\Users\Admin\AppData\Local\Temp\53c599ee6324db60c4b394722d950d3a.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1112 -
C:\Users\Admin\AppData\Roaming\leadentop\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2236
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