lucastealer | 41554c195bc8c87ddb8bbeacefe77c033f56549a03361dd76c2243546dd1f2d8

Resubmissions

02-11-2023 21:08

231102-zy2f4shf43 10

02-11-2023 19:29

231102-x7fjwsec8w 10

30-06-2023 11:57

230630-n4mdlaae31 7

Analysis

max time kernel
220s
max time network
275s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2023 19:29

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General

Target

payload.exe
Size

9.0MB
MD5

f6c5df8944a965d0d3aa2e124a1935af
SHA1

3ff36a13827d193a85eed40b59646bad1d676986
SHA256

41554c195bc8c87ddb8bbeacefe77c033f56549a03361dd76c2243546dd1f2d8
SHA512

8d75df03c33e9288b2d4b9e941c89ca2e0e7008e151ee3c104292427266043050f9966d0ff6e5c46890bde404337873768a4cde255778418144766646d08ceae
SSDEEP

196608:cTEcVnJULKrytYcJX7Nfjw9cI1qyz+6weSn5NeCX4X6:4EcVnukcJLtlIwqwemrePX6

Score

10^/10

lucastealer spyware stealer

Malware Config

Extracted

Family

lucastealer

https://api.telegram.org/bot5749635914:AAHO1FmA3UVCNqptBOADqQF-cFGUoMOYe6g

Signatures

Luca Stealer
Info stealer written in Rust first seen in July 2022.
stealer lucastealer

Luca Stealer payload 4 IoCs

resource	yara_rule
behavioral3/memory/1400-2-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp	family_lucastealer
behavioral3/memory/1400-1-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp	family_lucastealer
behavioral3/memory/1400-70-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp	family_lucastealer
behavioral3/memory/1400-72-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp	family_lucastealer

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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1400	payload.exe
1400	payload.exe
4252	powershell.exe
4252	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4252	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1400 wrote to memory of 4252	1400	payload.exe	94
PID 1400 wrote to memory of 4252	1400	payload.exe	94

C:\Users\Admin\AppData\Local\Temp\payload.exe
"C:\Users\Admin\AppData\Local\Temp\payload.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1400
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" -NoProfile -NonInteractive -NoLogo -Command "Get-Culture | Select -ExpandProperty DisplayName"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

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\KPE1Q5PCl9ws2dwccNMnDjZbNIS7nR\sensfiles.zip

Filesize
3.2MB

MD5
089a898b91faef27b64f5e313db7cbfb

SHA1
bdd3368d4d46c1490690cbfdef7f27aa82980a7b

SHA256
23e51a8d829d268c2b5f7eb6826e45598ff258d602f7001eec8cb5fe2fc0ba54

SHA512
749ff4b7fa308e76f5040a5e6b964af011ea44e81134995bfe9391f8ec90dafebaf660f658aad81e08d99078d29b49b54d3516040bb83f8895919f3cec8dcfce

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mgazwm5r.5fd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\vivaldi_default_login_data

Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/1400-2-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp

Filesize
16.6MB

Download
memory/1400-1-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp

Filesize
16.6MB

Download
memory/1400-72-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp

Filesize
16.6MB

Download
memory/1400-70-0x00007FF7E9BE0000-0x00007FF7EAC77000-memory.dmp

Filesize
16.6MB

Download
memory/1400-0-0x00007FFA04AD0000-0x00007FFA04AD2000-memory.dmp

Filesize
8KB

Download
memory/4252-17-0x000001F341100000-0x000001F341110000-memory.dmp

Filesize
64KB

Download
memory/4252-23-0x00007FF9E5600000-0x00007FF9E60C1000-memory.dmp

Filesize
10.8MB

Download
memory/4252-19-0x000001F341100000-0x000001F341110000-memory.dmp

Filesize
64KB

Download
memory/4252-18-0x000001F341100000-0x000001F341110000-memory.dmp

Filesize
64KB

Download
memory/4252-16-0x00007FF9E5600000-0x00007FF9E60C1000-memory.dmp

Filesize
10.8MB

Download
memory/4252-6-0x000001F35CF60000-0x000001F35CF82000-memory.dmp

Filesize
136KB

Download