Malware Analysis Report

2024-11-30 02:39

Sample ID 240407-vwahdsaa59
Target 09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa
SHA256 09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa
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

09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa

Threat Level: Known bad

The file 09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa was found to be: Known bad.

Malicious Activity Summary

stealc discovery spyware stealer

Stealc

Downloads MZ/PE file

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Unsigned PE

Enumerates physical storage devices

Program crash

Runs ping.exe

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 17:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 17:19

Reported

2024-04-07 17:22

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.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\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.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 1484 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 1484 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 1484 wrote to memory of 4492 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 4492 wrote to memory of 3132 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe
PID 4492 wrote to memory of 3132 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe
PID 4492 wrote to memory of 3132 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe
PID 3132 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe C:\Windows\SysWOW64\cmd.exe
PID 3132 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe C:\Windows\SysWOW64\cmd.exe
PID 3132 wrote to memory of 2176 N/A C:\Users\Admin\AppData\Local\Temp\AAEHJEGIID.exe C:\Windows\SysWOW64\cmd.exe
PID 2176 wrote to memory of 3228 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2176 wrote to memory of 3228 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2176 wrote to memory of 3228 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe

"C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1484 -ip 1484

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1484 -s 2416

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\AAEHJEGIID.exe

C:\Windows\SysWOW64\PING.EXE

ping 2.2.2.2 -n 1 -w 3000

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
DE 185.172.128.26:80 185.172.128.26 tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.128.172.185.in-addr.arpa udp
DE 185.172.128.228:80 185.172.128.228 tcp
US 8.8.8.8:53 228.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 43.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/1484-1-0x0000000002D60000-0x0000000002E60000-memory.dmp

memory/1484-2-0x0000000002D20000-0x0000000002D47000-memory.dmp

memory/1484-3-0x0000000000400000-0x0000000002B79000-memory.dmp

memory/1484-4-0x0000000061E00000-0x0000000061EF3000-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

memory/1484-79-0x0000000000400000-0x0000000002B79000-memory.dmp

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

MD5 fe380780b5c35bd6d54541791151c2be
SHA1 7fe3a583cf91474c733f85cebf3c857682e269e1
SHA256 b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512 ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

memory/3132-91-0x0000000000AC0000-0x0000000000AE0000-memory.dmp

memory/3132-92-0x0000000072450000-0x0000000072C00000-memory.dmp

memory/1484-93-0x0000000002D60000-0x0000000002E60000-memory.dmp

memory/3132-94-0x0000000005410000-0x0000000005420000-memory.dmp

memory/3132-98-0x0000000072450000-0x0000000072C00000-memory.dmp

memory/1484-97-0x0000000000400000-0x0000000002B79000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 17:19

Reported

2024-04-07 17:22

Platform

win11-20240221-en

Max time kernel

90s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.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\EGIIIECBGD.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\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.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 3568 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 3568 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 3568 wrote to memory of 2708 N/A C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe C:\Windows\SysWOW64\cmd.exe
PID 2708 wrote to memory of 744 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe
PID 2708 wrote to memory of 744 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe
PID 2708 wrote to memory of 744 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe
PID 744 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe C:\Windows\SysWOW64\cmd.exe
PID 744 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe C:\Windows\SysWOW64\cmd.exe
PID 744 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\EGIIIECBGD.exe C:\Windows\SysWOW64\cmd.exe
PID 2812 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2812 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE
PID 2812 wrote to memory of 3500 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\PING.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe

"C:\Users\Admin\AppData\Local\Temp\09819963d01b97f4baab2bbee6d2d258404b17091fed311cf21723f7df25defa.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3568 -ip 3568

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3568 -s 2436

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\EGIIIECBGD.exe

C:\Windows\SysWOW64\PING.EXE

ping 2.2.2.2 -n 1 -w 3000

Network

Country Destination Domain Proto
DE 185.172.128.26:80 185.172.128.26 tcp
US 8.8.8.8:53 26.128.172.185.in-addr.arpa udp
DE 185.172.128.228:80 185.172.128.228 tcp
US 52.111.229.43:443 tcp

Files

memory/3568-1-0x0000000002E60000-0x0000000002F60000-memory.dmp

memory/3568-2-0x0000000002E30000-0x0000000002E57000-memory.dmp

memory/3568-3-0x0000000000400000-0x0000000002B79000-memory.dmp

memory/3568-4-0x0000000061E00000-0x0000000061EF3000-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

memory/3568-83-0x0000000000400000-0x0000000002B79000-memory.dmp

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

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

MD5 fe380780b5c35bd6d54541791151c2be
SHA1 7fe3a583cf91474c733f85cebf3c857682e269e1
SHA256 b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512 ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c

memory/744-99-0x00000000001F0000-0x0000000000210000-memory.dmp

memory/744-100-0x0000000071D40000-0x00000000724F1000-memory.dmp

memory/744-101-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

memory/744-104-0x0000000071D40000-0x00000000724F1000-memory.dmp

memory/3568-105-0x0000000000400000-0x0000000002B79000-memory.dmp