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
138s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2023 21:08

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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 3 IoCs

resource	yara_rule
behavioral2/memory/3400-1-0x00007FF69F750000-0x00007FF6A07E7000-memory.dmp	family_lucastealer
behavioral2/memory/3400-2-0x00007FF69F750000-0x00007FF6A07E7000-memory.dmp	family_lucastealer
behavioral2/memory/3400-124-0x00007FF69F750000-0x00007FF6A07E7000-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
3400	payload.exe
3400	payload.exe
2088	powershell.exe
2088	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	powershell.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 2088	3400	payload.exe	88
PID 3400 wrote to memory of 2088	3400	payload.exe	88

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:3400
- 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:2088

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\8h1dELSSVuHXfRM19CMEuWNC7fk7Bm\sensfiles.zip

Filesize
4.1MB

MD5
7a8ab4738f1644374e9d1c89170d1239

SHA1
5d7fd6e7b557f1d903bf1143e0fe99446b3582b9

SHA256
dad05428e3641d86dddeb10d23c1f85e6342ee73b40eacfcf7742835b8414122

SHA512
6c35d905daf32a76d86ab8a702c01d1c1c7f5cc0d7c06e85922d2bf83e73c321e66c3413ec5bf41ba6d9a594017edc7bcede3c0620d2d96973c7f2de26e51399

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_knrbdums.gm2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

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

Filesize
92KB

MD5
2c49291f7cd253c173250751551fd2b5

SHA1
9d8a80c2a365675a63b5f50f63b72b76d625b1b1

SHA256
5766d76fbd9f797ab218de6c240dcae6f78066bc5812a99aeeed584fb0621f75

SHA512
de4a9ca73d663384264643be909726cb3393ea45779c888eb54bb3fbd2e36d8ad1c30260a16f1ced9fc5d8fe96dee761a655ff3764148b3e2678563417d6d933

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

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
C:\Users\Admin\AppData\Local\Temp\opera gx stable_default_login_data

Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/2088-8-0x000001CC318C0000-0x000001CC318E2000-memory.dmp

Filesize
136KB

Download
memory/2088-18-0x000001CC31720000-0x000001CC31730000-memory.dmp

Filesize
64KB

Download
memory/2088-22-0x00007FFCD74D0000-0x00007FFCD7F91000-memory.dmp

Filesize
10.8MB

Download
memory/2088-17-0x000001CC31720000-0x000001CC31730000-memory.dmp

Filesize
64KB

Download
memory/2088-16-0x00007FFCD74D0000-0x00007FFCD7F91000-memory.dmp

Filesize
10.8MB

Download
memory/3400-0-0x00007FFCF6570000-0x00007FFCF6572000-memory.dmp

Filesize
8KB

Download
memory/3400-2-0x00007FF69F750000-0x00007FF6A07E7000-memory.dmp

Filesize
16.6MB

Download
memory/3400-1-0x00007FF69F750000-0x00007FF6A07E7000-memory.dmp

Filesize
16.6MB

Download
memory/3400-124-0x00007FF69F750000-0x00007FF6A07E7000-memory.dmp

Filesize
16.6MB

Download