lucastealer | 41554c195bc8c87ddb8bbeacefe77c033f56549a03361dd76c2243546dd1f2d8

General

Target

f6c5df8944a965d0d3aa2e124a1935af.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

C2

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
behavioral1/memory/1992-4-0x000000013FDD0000-0x0000000140E67000-memory.dmp	family_lucastealer
behavioral1/memory/1992-7-0x000000013FDD0000-0x0000000140E67000-memory.dmp	family_lucastealer
behavioral1/memory/1992-188-0x000000013FDD0000-0x0000000140E67000-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
1992	f6c5df8944a965d0d3aa2e124a1935af.exe
2500	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2500	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2500	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	29
PID 1992 wrote to memory of 2500	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	29
PID 1992 wrote to memory of 2500	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	29
PID 1992 wrote to memory of 1580	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	31
PID 1992 wrote to memory of 1580	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	31
PID 1992 wrote to memory of 1580	1992	f6c5df8944a965d0d3aa2e124a1935af.exe	31

C:\Users\Admin\AppData\Local\Temp\f6c5df8944a965d0d3aa2e124a1935af.exe
"C:\Users\Admin\AppData\Local\Temp\f6c5df8944a965d0d3aa2e124a1935af.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1992
- 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:2500
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1992 -s 1076
  2⤵
  PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab600C.tmp

Filesize
61KB

MD5
f3441b8572aae8801c04f3060b550443

SHA1
4ef0a35436125d6821831ef36c28ffaf196cda15

SHA256
6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

SHA512
5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

Download Submit
C:\Users\Admin\AppData\Local\Temp\RReMgLGr5bnDNCkP1Xixm2gSk2sgLz\sensfiles.zip

Filesize
8.7MB

MD5
347c95cc0ac24d12ac95f7a7df395ef1

SHA1
f371bf4133c75e60f0f74b6024a04edc847b947c

SHA256
09ebabdf0522f83f17a937725bef4129bbc0edbfeb2adb819abd7ee4dec97f47

SHA512
564c99d63191d0db9534ba6f293eeb2debfa5c6db0c32fc05b8881b820daacc40a1645ebe3f5dbcf6476ba42bee0ff33c80c543a717608a7db026dcef24d3592

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar603E.tmp

Filesize
163KB

MD5
9441737383d21192400eca82fda910ec

SHA1
725e0d606a4fc9ba44aa8ffde65bed15e65367e4

SHA256
bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

SHA512
7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

Download Submit
C:\Users\Admin\AppData\Local\Temp\qip surf_default_login_data

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Local\Temp\qip surf_default_webdata

Filesize
92KB

MD5
bb18dcba6963f64dfb434e83255c7a5e

SHA1
5bf0d53e721eb40ab8172a1134d1657b9d40e4d7

SHA256
d020d662d980b19b1a21f7f6860e8e7958f96d797c939a5fee1d13845c0f3b6b

SHA512
a898203234fbf1b75a5c1fc224b25273a39391563e8048b8dc8b798aff34e6910defbe4f7067afaa7eb764473818489d91adcc2c4a4f4f099e656c9a0640d67d

Download Submit
C:\Users\Admin\AppData\Local\Temp\qip surf_network_cookies

Filesize
20KB

MD5
c9ff7748d8fcef4cf84a5501e996a641

SHA1
02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

SHA256
4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

SHA512
d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

Download Submit
memory/1992-7-0x000000013FDD0000-0x0000000140E67000-memory.dmp

Filesize
16.6MB

Download
memory/1992-5-0x00000000779D0000-0x00000000779D2000-memory.dmp

Filesize
8KB

Download
memory/1992-189-0x0000000077820000-0x00000000779C9000-memory.dmp

Filesize
1.7MB

Download
memory/1992-188-0x000000013FDD0000-0x0000000140E67000-memory.dmp

Filesize
16.6MB

Download
memory/1992-0-0x00000000779D0000-0x00000000779D2000-memory.dmp

Filesize
8KB

Download
memory/1992-2-0x00000000779D0000-0x00000000779D2000-memory.dmp

Filesize
8KB

Download
memory/1992-4-0x000000013FDD0000-0x0000000140E67000-memory.dmp

Filesize
16.6MB

Download
memory/1992-6-0x0000000077820000-0x00000000779C9000-memory.dmp

Filesize
1.7MB

Download
memory/2500-52-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2500-53-0x0000000002554000-0x0000000002557000-memory.dmp

Filesize
12KB

Download
memory/2500-54-0x0000000002550000-0x00000000025D0000-memory.dmp

Filesize
512KB

Download
memory/2500-51-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Filesize
9.6MB

Download
memory/2500-50-0x0000000002460000-0x0000000002468000-memory.dmp

Filesize
32KB

Download
memory/2500-49-0x000000001B2C0000-0x000000001B5A2000-memory.dmp

Filesize
2.9MB

Download

Analysis

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