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
122s
max time network
144s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-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 4 IoCs

resource	yara_rule
behavioral1/memory/2568-2-0x000000013F390000-0x0000000140427000-memory.dmp	family_lucastealer
behavioral1/memory/2568-7-0x000000013F390000-0x0000000140427000-memory.dmp	family_lucastealer
behavioral1/memory/2568-147-0x000000013F390000-0x0000000140427000-memory.dmp	family_lucastealer
behavioral1/memory/2568-148-0x000000013F390000-0x0000000140427000-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 2 IoCs

pid	Process
2568	payload.exe
2484	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2484	2568	payload.exe	29
PID 2568 wrote to memory of 2484	2568	payload.exe	29
PID 2568 wrote to memory of 2484	2568	payload.exe	29
PID 2568 wrote to memory of 2856	2568	payload.exe	31
PID 2568 wrote to memory of 2856	2568	payload.exe	31
PID 2568 wrote to memory of 2856	2568	payload.exe	31

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:2568
- 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:2484
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2568 -s 912
  2⤵
  PID:2856

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\2o7k1yYUZH0aRZVgvlomY0l8Mj1Vux\sensfiles.zip

Filesize
7.5MB

MD5
ddda1640a507fba6cbff70d31ffd38b4

SHA1
848b0dc7f781043e7fa8ee0943391a346286c536

SHA256
b5cd67c4df2aeda25e4d619af8eae56ac6f1700f8cbf615b8c146ea9d37a7d92

SHA512
32703f888d1090dbacecedf4e9e273d81678ee7f6f39f7c0cf8a3746c11bed6c3659d8151475971d186a1d3e3c1eddccb026861014ffd8f88ff2e15fdd42b3b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabA7D5.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA807.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

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

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Local\Temp\opera stable_default_webdata

Filesize
92KB

MD5
8fff4afa5c28dcfdfb7bac7c3950841d

SHA1
dd3fbd23bf6ca1bcdd15e6c984d676e43cf4dfc4

SHA256
c454b6533ff9fb8d73697fb7845adc2463ecc3a69e926de5dadb17f1012f6203

SHA512
bcd79fa0ddef1138fe6b47295d5ea491546bb9399a723ce6984f3139ae6fc6e98d0ca764120aa65a670db46c75143b493676d161cabd863f26d1950ade69412a

Download Submit
C:\Users\Admin\AppData\Local\Temp\opera stable_network_cookies

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
memory/2484-52-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

Filesize
9.6MB

Download
memory/2484-54-0x00000000025C0000-0x0000000002640000-memory.dmp

Filesize
512KB

Download
memory/2484-50-0x000000001B2B0000-0x000000001B592000-memory.dmp

Filesize
2.9MB

Download
memory/2484-51-0x00000000023A0000-0x00000000023A8000-memory.dmp

Filesize
32KB

Download
memory/2484-55-0x000007FEF54D0000-0x000007FEF5E6D000-memory.dmp

Filesize
9.6MB

Download
memory/2484-53-0x00000000025C0000-0x0000000002640000-memory.dmp

Filesize
512KB

Download
memory/2568-0-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2568-8-0x0000000077270000-0x0000000077419000-memory.dmp

Filesize
1.7MB

Download
memory/2568-7-0x000000013F390000-0x0000000140427000-memory.dmp

Filesize
16.6MB

Download
memory/2568-5-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2568-2-0x000000013F390000-0x0000000140427000-memory.dmp

Filesize
16.6MB

Download
memory/2568-3-0x0000000077420000-0x0000000077422000-memory.dmp

Filesize
8KB

Download
memory/2568-147-0x000000013F390000-0x0000000140427000-memory.dmp

Filesize
16.6MB

Download
memory/2568-148-0x000000013F390000-0x0000000140427000-memory.dmp

Filesize
16.6MB

Download
memory/2568-149-0x0000000077270000-0x0000000077419000-memory.dmp

Filesize
1.7MB

Download