b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd

Analysis

max time kernel
4s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04/10/2022, 03:11

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General

Target

b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
Size

373KB
MD5

34c5edb71fd9a5e839440678175663d0
SHA1

92f8f25f56c80209dc96373ae171c52c1d3edb7e
SHA256

b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd
SHA512

0c67fb59e29643f2c3de2ea2df99355c0cc8572aa02101f4c4a9588a69e50f03f36616f6a76050757a2b61864584821d012548a69cef57f03dc617d62931d307
SSDEEP

6144:5731bdBaBFyzNymBLppBItEtFbA6au+wmSOJR/Omqi4h133QnTS2oF7WQTGP:51bfNymbpBItEXsSOSNmq9HQnIFiQT+

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe sIRC4.exe"	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe

Drops file in System32 directory 19 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xdccPrograms\7zFM.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\Uninstall.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\FlickLearningWizard.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\InkWatson.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\InkWatson.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\InputPersonalization.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\sIRC4.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7z.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\InputPersonalization.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\mip.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\7z.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\ConvertInkStore.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\RCXD431.tmp	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\Uninstall.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\FlickLearningWizard.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\7zG.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File opened for modification	C:\Windows\SysWOW64\xdccPrograms\ConvertInkStore.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\sIRC4.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
File created	C:\Windows\SysWOW64\xdccPrograms\7zG.exe	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1320	908	WerFault.exe	23

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 1320	908	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe	28
PID 908 wrote to memory of 1320	908	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe	28
PID 908 wrote to memory of 1320	908	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe	28
PID 908 wrote to memory of 1320	908	b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe	28

C:\Users\Admin\AppData\Local\Temp\b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe
"C:\Users\Admin\AppData\Local\Temp\b6f5a198d49308b99fd243e9e38114c4394b188a9c91e906db4c86a4f13e08cd.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:908
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 908 -s 152
  2⤵
  - Program crash
  PID:1320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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