Malware Analysis Report

2025-08-10 12:33

Sample ID 240403-ppqm5sde46
Target c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7
SHA256 c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7
Tags
stealc discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7

Threat Level: Known bad

The file c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7 was found to be: Known bad.

Malicious Activity Summary

stealc discovery spyware stealer

Stealc

Downloads MZ/PE file

Checks computer location settings

Loads dropped DLL

Reads data files stored by FTP clients

Executes dropped EXE

Reads user/profile data of web browsers

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Program crash

Unsigned PE

Enumerates physical storage devices

Runs ping.exe

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-03 12:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 12:30

Reported

2024-04-03 12:33

Platform

win10v2004-20240226-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe N/A

Executes dropped EXE

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

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2352 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 2352 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 2352 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 2392 wrote to memory of 4164 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe
PID 2392 wrote to memory of 4164 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe
PID 2392 wrote to memory of 4164 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe
PID 4164 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe C:\Windows\SysWOW64\cmd.exe
PID 4164 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe C:\Windows\SysWOW64\cmd.exe
PID 4164 wrote to memory of 3248 N/A C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe C:\Windows\SysWOW64\cmd.exe
PID 3248 wrote to memory of 1100 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3248 wrote to memory of 1100 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 3248 wrote to memory of 1100 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe

"C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2352 -ip 2352

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2352 -s 2348

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\HCFBKKEBKE.exe

C:\Windows\SysWOW64\PING.EXE

ping 2.2.2.2 -n 1 -w 3000

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
DE 185.172.128.209:80 185.172.128.209 tcp
US 8.8.8.8:53 209.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
DE 185.172.128.65:80 185.172.128.65 tcp
US 8.8.8.8:53 65.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 9.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 200.79.70.13.in-addr.arpa udp

Files

memory/2352-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

memory/2352-2-0x0000000000940000-0x0000000000967000-memory.dmp

memory/2352-3-0x0000000000400000-0x0000000000866000-memory.dmp

memory/2352-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/2352-80-0x0000000000400000-0x0000000000866000-memory.dmp

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

MD5 fe380780b5c35bd6d54541791151c2be
SHA1 7fe3a583cf91474c733f85cebf3c857682e269e1
SHA256 b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512 ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

memory/4164-87-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

memory/4164-88-0x0000000072990000-0x0000000073140000-memory.dmp

memory/4164-89-0x0000000003090000-0x00000000030A0000-memory.dmp

memory/4164-92-0x0000000072990000-0x0000000073140000-memory.dmp

memory/2352-93-0x0000000000400000-0x0000000000866000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 12:30

Reported

2024-04-03 12:33

Platform

win11-20240221-en

Max time kernel

148s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Executes dropped EXE

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

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe N/A

Runs ping.exe

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\PING.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4664 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 4664 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 4664 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe C:\Windows\SysWOW64\cmd.exe
PID 2884 wrote to memory of 1916 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe
PID 2884 wrote to memory of 1916 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe
PID 2884 wrote to memory of 1916 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe
PID 1916 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 1920 N/A C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe C:\Windows\SysWOW64\cmd.exe
PID 1920 wrote to memory of 420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1920 wrote to memory of 420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 1920 wrote to memory of 420 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe

"C:\Users\Admin\AppData\Local\Temp\c975efca05f5c6f2abc2491a6f8d3d498438622d045c7370bf6d68a53e0241a7.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4664 -ip 4664

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4664 -s 2508

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\BKJEHCAKFB.exe

C:\Windows\SysWOW64\PING.EXE

ping 2.2.2.2 -n 1 -w 3000

Network

Country Destination Domain Proto
DE 185.172.128.209:80 185.172.128.209 tcp
US 8.8.8.8:53 209.128.172.185.in-addr.arpa udp
DE 185.172.128.65:80 185.172.128.65 tcp

Files

memory/4664-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

memory/4664-2-0x00000000026D0000-0x00000000026F7000-memory.dmp

memory/4664-3-0x0000000000400000-0x0000000000866000-memory.dmp

memory/4664-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/4664-84-0x0000000000400000-0x0000000000866000-memory.dmp

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

MD5 fe380780b5c35bd6d54541791151c2be
SHA1 7fe3a583cf91474c733f85cebf3c857682e269e1
SHA256 b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512 ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

memory/1916-92-0x00000000001B0000-0x00000000001D0000-memory.dmp

memory/1916-91-0x0000000071950000-0x0000000072101000-memory.dmp

memory/1916-93-0x0000000004CC0000-0x0000000004CD0000-memory.dmp

memory/1916-96-0x0000000071950000-0x0000000072101000-memory.dmp

memory/4664-97-0x0000000000400000-0x0000000000866000-memory.dmp