Malware Analysis Report

2025-03-15 03:54

Sample ID 230706-b15dsahh8s
Target 667aca3b0011aebd3ac1eb04a929e79b.bin
SHA256 a612d2c168b2935ce9b0018ca3bcd9fde5bfcfca1bdd35722ccc57f2232bf92f
Tags
fatalrat infostealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a612d2c168b2935ce9b0018ca3bcd9fde5bfcfca1bdd35722ccc57f2232bf92f

Threat Level: Known bad

The file 667aca3b0011aebd3ac1eb04a929e79b.bin was found to be: Known bad.

Malicious Activity Summary

fatalrat infostealer rat

FatalRat

Fatal Rat payload

Executes dropped EXE

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-06 01:37

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-06 01:37

Reported

2023-07-06 01:40

Platform

win7-20230703-en

Max time kernel

35s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe"

Signatures

FatalRat

infostealer rat fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Jklmno.exe C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
File opened for modification C:\Windows\Jklmno.exe C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
File opened for modification C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe N/A
File created C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Jklmno.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Jklmno.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie C:\Windows\Jklmno.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7" C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Jklmno Qrstuvwx C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet C:\Windows\Jklmno.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Jklmno Qrstuvwx\Group = "Fatal" C:\Windows\Jklmno.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Jklmno Qrstuvwx\InstallTime = "2023-07-06 01:38" C:\Windows\Jklmno.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Jklmno.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Jklmno.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3024 wrote to memory of 2704 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe
PID 3024 wrote to memory of 2704 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe
PID 3024 wrote to memory of 2704 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe
PID 3024 wrote to memory of 2704 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe

"C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe"

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe Win7

Network

Country Destination Domain Proto
CN 120.79.43.38:8085 tcp

Files

memory/2336-54-0x0000000010000000-0x000000001001C000-memory.dmp

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-06 01:37

Reported

2023-07-06 01:40

Platform

win10v2004-20230703-en

Max time kernel

34s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe"

Signatures

FatalRat

infostealer rat fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Jklmno.exe C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
File opened for modification C:\Windows\Jklmno.exe C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
File opened for modification C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe N/A
File created C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Jklmno.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\Jklmno.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services C:\Windows\Jklmno.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Jklmno Qrstuvwx\InstallTime = "2023-07-06 01:38" C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie C:\Windows\Jklmno.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Services\Jklmno Qrstuvwx C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Jklmno Qrstuvwx C:\Windows\Jklmno.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Services\Jklmno Qrstuvwx\Group = "Fatal" C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum C:\Windows\Jklmno.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft C:\Windows\Jklmno.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A
N/A N/A C:\Windows\Jklmno.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Jklmno.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Jklmno.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2620 wrote to memory of 1568 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe
PID 2620 wrote to memory of 1568 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe
PID 2620 wrote to memory of 1568 N/A C:\Windows\Jklmno.exe C:\Windows\Jklmno.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe

"C:\Users\Admin\AppData\Local\Temp\f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3.exe"

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe

C:\Windows\Jklmno.exe Win7

Network

Country Destination Domain Proto
CN 120.79.43.38:8085 tcp
US 8.8.8.8:53 38.43.79.120.in-addr.arpa udp

Files

memory/1740-133-0x0000000010000000-0x000000001001C000-memory.dmp

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45

memory/2620-141-0x0000000010000000-0x000000001001C000-memory.dmp

C:\Windows\Jklmno.exe

MD5 667aca3b0011aebd3ac1eb04a929e79b
SHA1 7489d2101aaa8057fdfe8c22cca54df999f9bd7b
SHA256 f10495057c282936b7d00e5bed9c2eb0efdcef1e23ef60ec6be4566fb2626be3
SHA512 ddd335b9af141352409b1a94ca0020a581ba19b5cfa3edb9daad0805ce51d8a4d12ce6f5a4e0742db9cab7f92ae67f83b3a51f88dc018821aa0f8edf5e636b45