4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6

General

Target

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Size

255KB
MD5

f69d0c44228292018482c40f6f7fb235
SHA1

bd7e27f6fdd7000c1ae16040b44755b5705ee6f0
SHA256

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6
SHA512

c0a04574479861421b260a5a2078022dc9b8aa2aa58538f95bd48f25856d769f32799f45884c52a036e207f243e835d621e3474649c1706df14fc39995737d72

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 3 IoCs

Processes:

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

pid	process
1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

Drops file in Windows directory 1 IoCs

Processes:

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

description ioc process

File opened for modification C:\Windows\win.ini 4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1056 1680 WerFault.exe 4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

description	ioc	process
File opened for modification	C:\Windows\win.ini	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

pid	pid_target	process	target process
1056	1680	WerFault.exe	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

Modifies registry class 5 IoCs

Processes:

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{275D3BCC-22BB-4948-A7F6-3A3054EBA92B}\InprocServer32\ThreadingModel = "Apartment"	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{275D3BCC-22BB-4948-A7F6-3A3054EBA92B}\InprocServer32	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{275D3BCC-22BB-4948-A7F6-3A3054EBA92B}	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe

description	pid	process	target process
PID 1680 wrote to memory of 1056	1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe	WerFault.exe
PID 1680 wrote to memory of 1056	1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe	WerFault.exe
PID 1680 wrote to memory of 1056	1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe	WerFault.exe
PID 1680 wrote to memory of 1056	1680	4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe
"C:\Users\Admin\AppData\Local\Temp\4e2932dafc7c9a9a7665939ad97252d3d1d16497cfa9852dabba4e59c6ca12d6.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 508
2⤵
- Program crash
PID:1056

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\deceased.dll
Filesize
24KB

MD5
4739ba192a560d12b81e915e1620d51f

SHA1
75fc507eab36a4232fca404b9f2451d3b2731432

SHA256
14210af8f444ed393be2b22edc2eb9c74188f095c920b4f303db585934bceade

SHA512
a8ab3190ea15f5e2fd9c53bcb261b88473a14c02f3a4cb37d1e99a431deafa7555e332a78a8d932f098c7453fc41bf66a6dde16c22bbf89591c9b2b91b5cfc21

Download Submit
\Users\Admin\AppData\Local\Temp\nsj2CFC.tmp\System.dll
Filesize
11KB

MD5
fbe295e5a1acfbd0a6271898f885fe6a

SHA1
d6d205922e61635472efb13c2bb92c9ac6cb96da

SHA256
a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1

SHA512
2cb596971e504eaf1ce8e3f09719ebfb3f6234cea5ca7b0d33ec7500832ff4b97ec2bbe15a1fbf7e6a5b02c59db824092b9562cd8991f4d027feab6fd3177b06

Download Submit
\Users\Admin\AppData\Local\Temp\nsj2CFC.tmp\UserInfo.dll
Filesize
4KB

MD5
7836f464ae0102452e94a363b491b759

SHA1
59909a48448b99e2eb9cd336d81d60764da59f31

SHA256
11adf8916947b5a20a071b494fa034cf62769dcc6293a1340b29a5bb29ac8e87

SHA512
5ed63eefa1b3b3caad4cb762ccb8419c05bcad3da3a7415235cda2d2a1f79eb018503ca30a0a92d6b72160327decea9a70c48e0c28de94dd67303d4aea4a02db

Download Submit
memory/1056-64-0x0000000000000000-mapping.dmp

Download
memory/1680-54-0x0000000075E21000-0x0000000075E23000-memory.dmp

Filesize
8KB

Download
memory/1680-58-0x0000000000510000-0x0000000000518000-memory.dmp

Filesize
32KB

Download
memory/1680-65-0x0000000002350000-0x0000000002F9A000-memory.dmp

Filesize
12.3MB

Download
memory/1680-66-0x0000000002350000-0x0000000002F9A000-memory.dmp

Filesize
12.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads