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Resubmissions
02/11/2023, 21:08
231102-zy2f4shf43 1002/11/2023, 19:29
231102-x7fjwsec8w 1030/06/2023, 11:57
230630-n4mdlaae31 7Analysis
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max time kernel
361s -
max time network
364s -
platform
windows7_x64 -
resource
win7-20231020-en -
resource tags
arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system -
submitted
02/11/2023, 19:29
Static task
static1
Behavioral task
behavioral1
Sample
payload.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
payload.exe
Resource
win10-20231020-en
Behavioral task
behavioral3
Sample
payload.exe
Resource
win10v2004-20231020-en
General
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Target
payload.exe
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Size
9.0MB
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MD5
f6c5df8944a965d0d3aa2e124a1935af
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SHA1
3ff36a13827d193a85eed40b59646bad1d676986
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SHA256
41554c195bc8c87ddb8bbeacefe77c033f56549a03361dd76c2243546dd1f2d8
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SHA512
8d75df03c33e9288b2d4b9e941c89ca2e0e7008e151ee3c104292427266043050f9966d0ff6e5c46890bde404337873768a4cde255778418144766646d08ceae
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SSDEEP
196608:cTEcVnJULKrytYcJX7Nfjw9cI1qyz+6weSn5NeCX4X6:4EcVnukcJLtlIwqwemrePX6
Malware Config
Extracted
lucastealer
https://api.telegram.org/bot5749635914:AAHO1FmA3UVCNqptBOADqQF-cFGUoMOYe6g
Signatures
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Luca Stealer
Info stealer written in Rust first seen in July 2022.
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Luca Stealer payload 3 IoCs
resource yara_rule behavioral1/memory/2252-4-0x000000013FE30000-0x0000000140EC7000-memory.dmp family_lucastealer behavioral1/memory/2252-8-0x000000013FE30000-0x0000000140EC7000-memory.dmp family_lucastealer behavioral1/memory/2252-100-0x000000013FE30000-0x0000000140EC7000-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.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2252 payload.exe 2700 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2700 powershell.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2252 wrote to memory of 2700 2252 payload.exe 29 PID 2252 wrote to memory of 2700 2252 payload.exe 29 PID 2252 wrote to memory of 2700 2252 payload.exe 29 PID 2252 wrote to memory of 1460 2252 payload.exe 31 PID 2252 wrote to memory of 1460 2252 payload.exe 31 PID 2252 wrote to memory of 1460 2252 payload.exe 31
Processes
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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:2252 -
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:2700
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2252 -s 8802⤵PID:1460
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD5f3441b8572aae8801c04f3060b550443
SHA14ef0a35436125d6821831ef36c28ffaf196cda15
SHA2566720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA5125ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9
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Filesize
163KB
MD59441737383d21192400eca82fda910ec
SHA1725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA5127608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf
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Filesize
46KB
MD502d2c46697e3714e49f46b680b9a6b83
SHA184f98b56d49f01e9b6b76a4e21accf64fd319140
SHA256522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9
SHA51260348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac
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Filesize
92KB
MD53f2000742dfce009334f21df6014ebe2
SHA1a3d63a0770c7c4b197e00b4a604fb9315711aae8
SHA25643ac1f4879a3e46340214841cb30fe4a62575173f4b0bd731935ad24c369f301
SHA512c8f9c2b333f9bef73350ae002eb9442c9c9b8b50712408c74ac27b4ef80637750ddfbf03c91162ab3561d9f78ba96202c50c58b58256d9e74f2017c6f2c8093c
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Filesize
20KB
MD5c9ff7748d8fcef4cf84a5501e996a641
SHA102867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA2564d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73
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Filesize
3.9MB
MD5a7e9165022fffc95e20b736920932b81
SHA12aa6399b121ea0439da3c5aa29b3e4857ae2c2f3
SHA256425374183b97865c3c710009d4577cf12ee9bca0bdac2bbaba0bcefbaf7496a4
SHA512eca186e01ce60ffe38830cd1f93687490f4025da6cf845a4b3dbd764191736ebbe93639e5ebe4be599781236cdb48ae0fdccb7b8a50d8d99bfeec6e0ba233d33