99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716 | Triage

Analysis

max time kernel
116s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
01-02-2022 12:53

Sharing

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General

Target

99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe
Size

23KB
MD5

ed8aceb0e863e1f7029b605ec9f6374b
SHA1

c15fde6304a27c2f1f5c77467a864017947a7b24
SHA256

99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716
SHA512

5506d77fc19963c250d3f2f45fe2a0ca1efdd301129b6b4e26b839f23eee9225b62378bf1b92c9dfb04fe679d7d7e1af1ee7450529888b4cb43249ec3a9bb701

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

Processes:

TiWorker.exe

description ioc process

File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

TiWorker.exe

description pid process

Token: SeSecurityPrivilege 820 TiWorker.exe
Token: SeRestorePrivilege 820 TiWorker.exe
Token: SeBackupPrivilege 820 TiWorker.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exefondue.exe

description	pid	process	target process
PID 2444 wrote to memory of 2592	2444	99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe	fondue.exe
PID 2444 wrote to memory of 2592	2444	99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe	fondue.exe
PID 2444 wrote to memory of 2592	2444	99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe	fondue.exe
PID 2592 wrote to memory of 2452	2592	fondue.exe	FonDUE.EXE
PID 2592 wrote to memory of 2452	2592	fondue.exe	FonDUE.EXE

C:\Users\Admin\AppData\Local\Temp\99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe
"C:\Users\Admin\AppData\Local\Temp\99d42cefa02973d7a59be7b81a4349bbed6b369c947656dac8b5a70568803716.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\SysWOW64\fondue.exe
"C:\Windows\system32\fondue.exe" /enable-feature:NetFx3 /caller-name:mscoreei.dll
2⤵
- Suspicious use of WriteProcessMemory
PID:2592

C:\Windows\system32\FonDUE.EXE
"C:\Windows\sysnative\FonDUE.EXE" /enable-feature:NetFx3 /caller-name:mscoreei.dll
3⤵
PID:2452

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:820

Network

MITRE ATT&CK Matrix

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