lucastealer | eedeb7539b2f680304e81c08f27372bc5459b8e406872f8ea939065e466f0774

Resubmissions

01-12-2022 16:35

221201-t345xagb67 10

23-11-2022 19:33

221123-x9kavshd23 10

Analysis

max time kernel
53s
max time network
85s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 16:35

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General

Target

SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe
Size

17.6MB
MD5

8c2a390aa7833720b374a720a6d06e4d
SHA1

188ec1a33bfd028333bcc3f6e96d2dbbdf01367f
SHA256

eedeb7539b2f680304e81c08f27372bc5459b8e406872f8ea939065e466f0774
SHA512

ac9bac95c37944ef7bb053126d5e5ba67c74562434b7bd4cb6f4c54e1d1cef8204990d670920f48af1cf26fb59ac422c0ccfe0075940cfe9c45e995897b86a07
SSDEEP

98304:BMSVESq5M3ClAD3sXHLQTyaQRO+YwWcRImg0cHQwb4CsB/wpDm7qCOPXwRalZLCt:2SSSP7sNavN7mg0mlb3DDdDP0

Score

10^/10

lucastealer spyware stealer

Malware Config

Extracted

Family

lucastealer

https://api.telegram.org/bot5740238611:AAESHdmffXlJNV7SD6-YjfXQmsg5jsSWb3Y

Signatures

Luca Stealer
Info stealer written in Rust first seen in July 2022.
stealer lucastealer
Executes dropped EXE 1 IoCs

Processes:

UIServices.exe

pid process

472 UIServices.exe
Loads dropped DLL 7 IoCs

Processes:

cmd.exeUIServices.exeWerFault.exe

pid process

2036 cmd.exe
2036 cmd.exe
472 UIServices.exe
1556 WerFault.exe
1556 WerFault.exe
1556 WerFault.exe
1556 WerFault.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 ip-api.com
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1556 472 WerFault.exe UIServices.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

UIServices.exe

pid process

472 UIServices.exe
472 UIServices.exe
472 UIServices.exe
472 UIServices.exe
472 UIServices.exe
472 UIServices.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

UIServices.exe

description pid process

Token: SeShutdownPrivilege 472 UIServices.exe

pid	process
472	UIServices.exe

pid	process
2036	cmd.exe
2036	cmd.exe
472	UIServices.exe
1556	WerFault.exe
1556	WerFault.exe
1556	WerFault.exe
1556	WerFault.exe

flow	ioc
3	ip-api.com

pid	pid_target	process	target process
1556	472	WerFault.exe	UIServices.exe

pid	process
472	UIServices.exe
472	UIServices.exe
472	UIServices.exe
472	UIServices.exe
472	UIServices.exe
472	UIServices.exe

description	pid	process
Token: SeShutdownPrivilege	472	UIServices.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.execmd.exeUIServices.exe

description	pid	process	target process
PID 1304 wrote to memory of 2036	1304	SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe	cmd.exe
PID 1304 wrote to memory of 2036	1304	SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe	cmd.exe
PID 1304 wrote to memory of 2036	1304	SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe	cmd.exe
PID 1304 wrote to memory of 2036	1304	SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe	cmd.exe
PID 2036 wrote to memory of 472	2036	cmd.exe	UIServices.exe
PID 2036 wrote to memory of 472	2036	cmd.exe	UIServices.exe
PID 2036 wrote to memory of 472	2036	cmd.exe	UIServices.exe
PID 2036 wrote to memory of 472	2036	cmd.exe	UIServices.exe
PID 472 wrote to memory of 1556	472	UIServices.exe	WerFault.exe
PID 472 wrote to memory of 1556	472	UIServices.exe	WerFault.exe
PID 472 wrote to memory of 1556	472	UIServices.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heuristic.HEUR.AGEN.1253469.14711.357.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\UIServices.exe Start UIServices.exe
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Users\Admin\AppData\Local\Temp\UIServices.exe
    C:\Users\Admin\AppData\Local\Temp\UIServices.exe Start UIServices.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:472
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 472 -s 1104
      4⤵
      Loads dropped DLL
      Program crash
      PID:1556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
C:\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
C:\Users\Admin\AppData\Local\Temp\VCRUNTIME140.dll

Filesize
99KB

MD5
7a2b8cfcd543f6e4ebca43162b67d610

SHA1
c1c45a326249bf0ccd2be2fbd412f1a62fb67024

SHA256
7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

SHA512
e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\UIServices.exe

Filesize
5.3MB

MD5
9edef0f9db07974c3ce9cba957327e78

SHA1
474f53d12af223f4c3da84f5832668fbb6611311

SHA256
90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

SHA512
e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

Download Submit
\Users\Admin\AppData\Local\Temp\vcruntime140.dll

Filesize
99KB

MD5
7a2b8cfcd543f6e4ebca43162b67d610

SHA1
c1c45a326249bf0ccd2be2fbd412f1a62fb67024

SHA256
7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

SHA512
e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

Download Submit
memory/472-59-0x0000000000000000-mapping.dmp

Download
memory/1304-54-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1556-63-0x0000000000000000-mapping.dmp

Download
memory/2036-55-0x0000000000000000-mapping.dmp

Download