e446bd97230671b6e38682ec9f3da7527c18dbd555efc7f27a52d144cf54edcc

Analysis

max time kernel
15s
max time network
26s
platform
windows7_x64
resource
win7v20201028
submitted
18-11-2020 16:58

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Report Analysis Logs

General

Target

OnlineInstaller.exe

Score

8^/10

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

OnlineInstaller.tmp

description ioc process

File created C:\Windows\system32\drivers\iaStorE.sys OnlineInstaller.tmp
Executes dropped EXE 1 IoCs

Processes:

OnlineInstaller.tmp

pid process

1604 OnlineInstaller.tmp
Loads dropped DLL 1 IoCs

Processes:

OnlineInstaller.exe

pid process

912 OnlineInstaller.exe
Checks for any installed AV software in registry 1 TTPs 1 IoCs

Security Software Discovery
T1063

Processes:

OnlineInstaller.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Avira OnlineInstaller.exe

description	ioc	process
File created	C:\Windows\system32\drivers\iaStorE.sys	OnlineInstaller.tmp

pid	process
1604	OnlineInstaller.tmp

pid	process
912	OnlineInstaller.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Avira	OnlineInstaller.exe

Drops file in System32 directory 6 IoCs

Processes:

OnlineInstaller.tmp

description	ioc	process
File created	C:\Windows\system32\spoolsr.exe	OnlineInstaller.tmp
File created	C:\Windows\system32\MS.dat	OnlineInstaller.tmp
File created	C:\Windows\system32\KeyHook64.dll	OnlineInstaller.tmp
File created	C:\Windows\system32\KH.dat	OnlineInstaller.tmp
File created	C:\Windows\system32\usp20.dll	OnlineInstaller.tmp
File created	C:\Windows\system32\UP.dat	OnlineInstaller.tmp

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

OnlineInstaller.exeOnlineInstaller.tmp

description	pid	process
Token: SeDebugPrivilege	912	OnlineInstaller.exe
Token: SeLoadDriverPrivilege	912	OnlineInstaller.exe
Token: SeDebugPrivilege	1604	OnlineInstaller.tmp
Token: SeLoadDriverPrivilege	1604	OnlineInstaller.tmp

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

OnlineInstaller.exe

description	pid	process	target process
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp
PID 912 wrote to memory of 1604	912	OnlineInstaller.exe	OnlineInstaller.tmp

C:\Users\Admin\AppData\Local\Temp\OnlineInstaller.exe
"C:\Users\Admin\AppData\Local\Temp\OnlineInstaller.exe"
1⤵
- Loads dropped DLL
- Checks for any installed AV software in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Users\Admin\AppData\Local\Temp\OnlineInstaller.tmp
C:\Users\Admin\AppData\Local\Temp\OnlineInstaller.tmp -install
2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:1604

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Security Software Discovery

T1063

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\OnlineInstaller.tmp

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\Users\Admin\AppData\Local\Temp\OnlineInstaller.tmp

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memory/1504-3-0x000007FEF6580000-0x000007FEF67FA000-memory.dmp

Filesize
2.5MB

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memory/1604-1-0x0000000000000000-mapping.dmp

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