04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3

General

Target

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
Size

151KB
MD5

3cf9adb3432a8fc6aedf5a8094ea7cb1
SHA1

aa3da2650153ec4c196bf23555eac69fda88238a
SHA256

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3
SHA512

b777a1ed6b811c82b16733252c4f5caf3a5fb8a5ff4cf6542629442f348ca147ea4e59431d2134bf7ca367f574a1e104b7053e8dfe334c21cee4dede8a043d5c
SSDEEP

1536:XTXapoSEZsQKcQinAxq2dS+SPMdp7bmXwZQsn4GiRtII+DeitflxM/mKT9NIx5SS:MHgsJcNnAwgSDIMH+ZtflxM/SxAzgl

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
File opened (read-only)	\??\Z:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\Y:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\X:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\U:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\T:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\M:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\F:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\R:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\Q:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\P:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\O:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\J:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\E:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\V:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\S:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\N:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\L:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\I:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\W:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\K:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\H:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened (read-only)	\??\G:	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\autorun.inf	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Drops file in Program Files directory 8 IoCs

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\GROOVE.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\INFOPATH.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSACCESS.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSPUB.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OIS.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\ONENOTE.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OUTLOOK.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\EXCEL.EXE	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.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

1504 2032 WerFault.exe 04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

pid process

2032 04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

pid	pid_target	process	target process
1504	2032	WerFault.exe	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

pid	process
2032	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe

description	pid	process	target process
PID 2032 wrote to memory of 1504	2032	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe	WerFault.exe
PID 2032 wrote to memory of 1504	2032	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe	WerFault.exe
PID 2032 wrote to memory of 1504	2032	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe	WerFault.exe
PID 2032 wrote to memory of 1504	2032	04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe
"C:\Users\Admin\AppData\Local\Temp\04490921aef617a0a1f6b23d2f38f7052aa82e7559843efaa34bb5b0c31c4fb3.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 544
2⤵
- Program crash
PID:1504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1504-56-0x0000000000000000-mapping.dmp

Download
memory/2032-54-0x0000000075201000-0x0000000075203000-memory.dmp

Filesize
8KB

Download
memory/2032-55-0x0000000074651000-0x0000000074653000-memory.dmp

Filesize
8KB

Download
memory/2032-57-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads