876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256

General

Target

876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
Size

157KB
MD5

0f37920f8c6191b5ededcce48fa98ab2
SHA1

1ac3315268f9970db5067efeac78cf9740edc69e
SHA256

876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256
SHA512

e7aec248f1d865216c789921b97c472536f650d5588cb265fb6d9fbee1730060ad73826a29647857c07b4c6a61c29f3054c9eb58273d41a12621a5a4823e1990
SSDEEP

3072:EfTx3TgNSqr6n16LPoRpD+O7SfM0kKA7kk5+4IyL:EtNqrzSJB7SfM0k/kk5+4tL

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\Wow6432Node\Microsoft\Windows\CurrentVersion\run	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.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

description	ioc	Process
File opened (read-only)	\??\R:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\Q:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\O:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\H:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\E:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\Y:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\X:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\N:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\M:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\Z:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\T:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\S:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\K:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\W:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\V:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\U:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\P:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\L:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\J:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\I:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\G:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened (read-only)	\??\F:	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.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

description	ioc	Process
File opened for modification	C:\autorun.inf	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe

Drops file in Program Files directory 8 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\GROOVE.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\INFOPATH.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSACCESS.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\MSPUB.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OIS.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\ONENOTE.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\OUTLOOK.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
File opened for modification	C:\PROGRA~2\MICROS~1\OFFICE14\EXCEL.EXE	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.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

pid	pid_target	Process	procid_target
1444	1988	WerFault.exe	16

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1988	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 1444	1988	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe	28
PID 1988 wrote to memory of 1444	1988	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe	28
PID 1988 wrote to memory of 1444	1988	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe	28
PID 1988 wrote to memory of 1444	1988	876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe	28

C:\Users\Admin\AppData\Local\Temp\876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.exe
"C:\Users\Admin\AppData\Local\Temp\876475330d2ca7cfbcf7cae94050bb30e5776054c40ce865b9a3ed2c79bfe256.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:1988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 540
  2⤵
  - Program crash
  PID:1444

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/1988-54-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1988-55-0x00000000742F1000-0x00000000742F3000-memory.dmp

Filesize
8KB

Download
memory/1988-56-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1988-58-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads