Analysis
-
max time kernel
102s -
max time network
101s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-11-2020 06:43
Static task
static1
Behavioral task
behavioral1
Sample
5a240ce26f7d1fe78e27aeaa03d9fc5c.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
5a240ce26f7d1fe78e27aeaa03d9fc5c.exe
Resource
win10v20201028
General
-
Target
5a240ce26f7d1fe78e27aeaa03d9fc5c.exe
-
Size
582KB
-
MD5
5a240ce26f7d1fe78e27aeaa03d9fc5c
-
SHA1
e10aee112742f06ba80f407f42d225faf5f7e638
-
SHA256
82987b4e0e8c616f7100a6421800b283354a22882b83abe0375acb24a924aaa8
-
SHA512
97a8c7f9480fa41cbeb550f89222554050ac1844da33d011e3e6cbbf9daadf7a9a35cc54f8f186df5114ac0d0aa1c2c680fbc1e4b475a393eb70ea0e75cdbbd8
Malware Config
Signatures
-
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
-
RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/864-10-0x0000000004050000-0x0000000004074000-memory.dmp family_redline behavioral1/memory/864-11-0x00000000065A0000-0x00000000065C2000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 864 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
5a240ce26f7d1fe78e27aeaa03d9fc5c.exepid process 536 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs
-
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 9 ip-api.com 15 checkip.amazonaws.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
5a240ce26f7d1fe78e27aeaa03d9fc5c.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe -
Processes:
5a240ce26f7d1fe78e27aeaa03d9fc5c.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe -
Runs ping.exe 1 TTPs 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 864 bestof.exe 864 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 864 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
5a240ce26f7d1fe78e27aeaa03d9fc5c.exebestof.execmd.exedescription pid process target process PID 536 wrote to memory of 864 536 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe bestof.exe PID 536 wrote to memory of 864 536 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe bestof.exe PID 536 wrote to memory of 864 536 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe bestof.exe PID 536 wrote to memory of 864 536 5a240ce26f7d1fe78e27aeaa03d9fc5c.exe bestof.exe PID 864 wrote to memory of 1624 864 bestof.exe cmd.exe PID 864 wrote to memory of 1624 864 bestof.exe cmd.exe PID 864 wrote to memory of 1624 864 bestof.exe cmd.exe PID 864 wrote to memory of 1624 864 bestof.exe cmd.exe PID 1624 wrote to memory of 1112 1624 cmd.exe PING.EXE PID 1624 wrote to memory of 1112 1624 cmd.exe PING.EXE PID 1624 wrote to memory of 1112 1624 cmd.exe PING.EXE PID 1624 wrote to memory of 1112 1624 cmd.exe PING.EXE
Processes
-
C:\Users\Admin\AppData\Local\Temp\5a240ce26f7d1fe78e27aeaa03d9fc5c.exe"C:\Users\Admin\AppData\Local\Temp\5a240ce26f7d1fe78e27aeaa03d9fc5c.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:1112
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
MD5
651026d3f1f58ca2718cac5272a53192
SHA1f975cb02d4f348ae6cd3fd112b746445bd653e87
SHA256fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931
SHA5129fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3
-
MD5
651026d3f1f58ca2718cac5272a53192
SHA1f975cb02d4f348ae6cd3fd112b746445bd653e87
SHA256fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931
SHA5129fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3