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Analysis
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max time kernel
295s -
max time network
298s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
25/04/2024, 22:21
Static task
static1
Behavioral task
behavioral1
Sample
3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
Resource
win7-20240221-en
General
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Target
3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe
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Size
396KB
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MD5
bf4f63cbcc06bf2ae575ea3778e023c1
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SHA1
ba9a6a28bfa25886b389afb4dc0e57a1d48eeeb8
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SHA256
3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43
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SHA512
992e3a0680da57fb60060628d56ca974a552a6e266864fad690108c38bbcdf94a6611b008fa2f0568cc0aa7f7a780ab57fb47288209206ecd8ac3158dca2f3b7
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SSDEEP
6144:4bUya3+rSZfUNPi77LXMIoTKsmQ3ol2nb14ov0d:sUyaySdnLXvoTmWol4b1j4
Malware Config
Extracted
stealc
http://185.172.128.111
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url_path
/f993692117a3fda2.php
Signatures
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Detects Arechclient2 RAT 1 IoCs
Arechclient2.
resource yara_rule behavioral2/memory/2308-115-0x0000000000600000-0x00000000006C6000-memory.dmp MALWARE_Win_Arechclient -
SectopRAT payload 1 IoCs
resource yara_rule behavioral2/memory/2308-115-0x0000000000600000-0x00000000006C6000-memory.dmp family_sectoprat -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 1200 u2s4.0.exe 2336 run.exe -
Loads dropped DLL 1 IoCs
pid Process 2336 run.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2336 set thread context of 3764 2336 run.exe 76 PID 3764 set thread context of 2308 3764 cmd.exe 80 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2336 run.exe 2336 run.exe 3764 cmd.exe 3764 cmd.exe 2308 MSBuild.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 2336 run.exe 3764 cmd.exe 3764 cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2308 MSBuild.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2336 run.exe 2336 run.exe 2308 MSBuild.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3604 wrote to memory of 1200 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 73 PID 3604 wrote to memory of 1200 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 73 PID 3604 wrote to memory of 1200 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 73 PID 3604 wrote to memory of 2336 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 75 PID 3604 wrote to memory of 2336 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 75 PID 3604 wrote to memory of 2336 3604 3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe 75 PID 2336 wrote to memory of 3764 2336 run.exe 76 PID 2336 wrote to memory of 3764 2336 run.exe 76 PID 2336 wrote to memory of 3764 2336 run.exe 76 PID 2336 wrote to memory of 3764 2336 run.exe 76 PID 3764 wrote to memory of 2308 3764 cmd.exe 80 PID 3764 wrote to memory of 2308 3764 cmd.exe 80 PID 3764 wrote to memory of 2308 3764 cmd.exe 80 PID 3764 wrote to memory of 2308 3764 cmd.exe 80 PID 3764 wrote to memory of 2308 3764 cmd.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe"C:\Users\Admin\AppData\Local\Temp\3d4375cde08e03e77fe51fbca04d0cc4ce29fd7d0a71174473fb2225ba204d43.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3604 -
C:\Users\Admin\AppData\Local\Temp\u2s4.0.exe"C:\Users\Admin\AppData\Local\Temp\u2s4.0.exe"2⤵
- Executes dropped EXE
PID:1200
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C:\Users\Admin\AppData\Local\Temp\u2s4.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u2s4.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3764 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2308
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.4MB
MD5d4ff1ae2c16e6c8518bf2fbaf643976a
SHA1dd691da3887e4c21a477760ddad3c3308c739a73
SHA256b54e32724c0bb1b4992d721f72de5f3a74508a5c8a16bf0df301ea38594bd8f5
SHA51296eaf60b64f45c26abc8d9760994d0b5ad04295fe48c258fbaf4d7bd30eedf0f2dab2b5d4a52a2d5083b92c6507ab56ea75783154ca82c54c61d70a2cdc4c46e
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Filesize
20KB
MD5c9ff7748d8fcef4cf84a5501e996a641
SHA102867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA2564d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73
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Filesize
275KB
MD5500ff9106af81f784b40acb38342f01e
SHA1fa28d68a241db1ff4a40c5659b65d6cb1b4ae9bc
SHA25655f2a97acc89f9991574ab48d97722932ed4006c589c9128475562cd6c5c2b8d
SHA512a0e1a7d91522fe1c219f4f62568dc5b517b8a36a30c2a8ba19e4deec1ba7602186aeb31b19c00202ea777704c1366e435c131e901bb02e34a0e22ed9979ee6f3
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Filesize
3.7MB
MD578d3ca6355c93c72b494bb6a498bf639
SHA12fa4e5df74bfe75c207c881a1b0d3bc1c62c8b0e
SHA256a1dd547a63b256aa6a16871ed03f8b025226f7617e67b8817a08444df077b001
SHA5121b2df7bee2514aee7efd3579f5dd33c76b40606d07dba69a34c45747662fad61174db4931bca02b058830107959205e889fee74f8ccc9f6e03f9fd111761f4ea
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Filesize
1.6MB
MD5d1ba9412e78bfc98074c5d724a1a87d6
SHA10572f98d78fb0b366b5a086c2a74cc68b771d368
SHA256cbcea8f28d8916219d1e8b0a8ca2db17e338eb812431bc4ad0cb36c06fd67f15
SHA5128765de36d3824b12c0a4478c31b985878d4811bd0e5b6fba4ea07f8c76340bd66a2da3490d4871b95d9a12f96efc25507dfd87f431de211664dbe9a9c914af6f
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Filesize
1.3MB
MD51e8237d3028ab52821d69099e0954f97
SHA130a6ae353adda0c471c6ed5b7a2458b07185abf2
SHA2569387488f9d338e211be2cb45109bf590a5070180bc0d4a703f70d3cb3c4e1742
SHA512a6406d7c18694ee014d59df581f1f76e980b68e3361ae680dc979606a423eba48d35e37f143154dd97fe5f066baf0ea51a2e9f8bc822d593e1cba70ead6559f3
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Filesize
2.4MB
MD59fb4770ced09aae3b437c1c6eb6d7334
SHA1fe54b31b0db8665aa5b22bed147e8295afc88a03
SHA256a05b592a971fe5011554013bcfe9a4aaf9cfc633bdd1fe3a8197f213d557b8d3
SHA512140fee6daf23fe8b7e441b3b4de83554af804f00ecedc421907a385ac79a63164bd9f28b4be061c2ea2262755d85e14d3a8e7dc910547837b664d78d93667256
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Filesize
85KB
MD5a723bf46048e0bfb15b8d77d7a648c3e
SHA18952d3c34e9341e4425571e10f22b782695bb915
SHA256b440170853bdb43b66497f701aee2901080326975140b095a1669cb9dee13422
SHA512ca8ea2f7f3c7af21b5673a0a3f2611b6580a7ed02efa2cfd8b343eb644ff09682bde43b25ef7aab68530d5ce31dcbd252c382dd336ecb610d4c4ebde78347273
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Filesize
1.5MB
MD510d51becd0bbce0fab147ff9658c565e
SHA14689a18112ff876d3c066bc8c14a08fd6b7b7a4a
SHA2567b2db9c88f60ed6dd24b1dec321a304564780fdb191a96ec35c051856128f1ed
SHA51229faf493bb28f7842c905adc5312f31741effb09f841059b53d73b22aea2c4d41d73db10bbf37703d6aeb936ffacbc756a3cc85ba3c0b6a6863ef4d27fefcd29