Analysis
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max time kernel
264s -
max time network
297s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
07-05-2024 23:29
Static task
static1
Behavioral task
behavioral1
Sample
91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe
Resource
win7-20240221-en
General
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Target
91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe
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Size
434KB
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MD5
149677290aa8404040c2f2ec8c285e21
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SHA1
87e8011dc4e5650043062ef9f53de7a4a0531f1d
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SHA256
91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114
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SHA512
d14a49d2698786fe8b7361c349937f319b613b8be8c579ce641fe2786031ec789cdd6c8b9f00d1cd0729662fab30aedba5885f262dae93dbfaeb0dc11bbce12a
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SSDEEP
6144:YjCWCQdVWjXWRSltCvyKN51/jFU+piWhXCS4W6N2sPyOG+V81t6xjl:u5/WMPZ1/jFU+pi8XD6NUD8xjl
Malware Config
Extracted
stealc
http://185.172.128.150
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url_path
/c698e1bc8a2f5e6d.php
Signatures
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Detect ZGRat V1 2 IoCs
resource yara_rule behavioral2/memory/4492-163-0x000001EBC0CA0000-0x000001EBC0DAA000-memory.dmp family_zgrat_v1 behavioral2/memory/4492-167-0x000001EBC0EB0000-0x000001EBC0ED4000-memory.dmp family_zgrat_v1 -
Detects Arechclient2 RAT 1 IoCs
Arechclient2.
resource yara_rule behavioral2/memory/4920-220-0x0000000001300000-0x00000000013C6000-memory.dmp MALWARE_Win_Arechclient -
SectopRAT payload 1 IoCs
resource yara_rule behavioral2/memory/4920-220-0x0000000001300000-0x00000000013C6000-memory.dmp family_sectoprat -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
pid Process 3184 u37k.0.exe 2416 run.exe 2444 u37k.3.exe -
Loads dropped DLL 5 IoCs
pid Process 2416 run.exe 2416 run.exe 2416 run.exe 3184 u37k.0.exe 3184 u37k.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2416 set thread context of 4084 2416 run.exe 75 PID 4084 set thread context of 4920 4084 cmd.exe 84 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u37k.3.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u37k.3.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI u37k.3.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u37k.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u37k.0.exe -
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 2416 run.exe 2416 run.exe 4084 cmd.exe 4084 cmd.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 3184 u37k.0.exe 3184 u37k.0.exe 4920 MSBuild.exe 3184 u37k.0.exe 3184 u37k.0.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 2416 run.exe 4084 cmd.exe 4084 cmd.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4492 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe Token: SeDebugPrivilege 4920 MSBuild.exe -
Suspicious use of FindShellTrayWindow 7 IoCs
pid Process 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe 2444 u37k.3.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4920 MSBuild.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 4160 wrote to memory of 3184 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 72 PID 4160 wrote to memory of 3184 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 72 PID 4160 wrote to memory of 3184 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 72 PID 4160 wrote to memory of 2416 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 74 PID 4160 wrote to memory of 2416 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 74 PID 4160 wrote to memory of 2416 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 74 PID 2416 wrote to memory of 4084 2416 run.exe 75 PID 2416 wrote to memory of 4084 2416 run.exe 75 PID 2416 wrote to memory of 4084 2416 run.exe 75 PID 4160 wrote to memory of 2444 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 77 PID 4160 wrote to memory of 2444 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 77 PID 4160 wrote to memory of 2444 4160 91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe 77 PID 2416 wrote to memory of 4084 2416 run.exe 75 PID 2444 wrote to memory of 4492 2444 u37k.3.exe 80 PID 2444 wrote to memory of 4492 2444 u37k.3.exe 80 PID 4084 wrote to memory of 4920 4084 cmd.exe 84 PID 4084 wrote to memory of 4920 4084 cmd.exe 84 PID 4084 wrote to memory of 4920 4084 cmd.exe 84 PID 4084 wrote to memory of 4920 4084 cmd.exe 84 PID 4084 wrote to memory of 4920 4084 cmd.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe"C:\Users\Admin\AppData\Local\Temp\91f2dfdf9d688737d07ae80174d5e6a30f6147ce39ebe437ac89460ebdd8d114.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4160 -
C:\Users\Admin\AppData\Local\Temp\u37k.0.exe"C:\Users\Admin\AppData\Local\Temp\u37k.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3184
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C:\Users\Admin\AppData\Local\Temp\u37k.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u37k.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2416 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4084 -
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:4920
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C:\Users\Admin\AppData\Local\Temp\u37k.3.exe"C:\Users\Admin\AppData\Local\Temp\u37k.3.exe"2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2444 -
C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4492
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
1.4MB
MD5c89f198d535037351d4f0906c1a94df6
SHA1d90e3d04a33fe8a2e1862a76c979cc3f4dd4e723
SHA256c1a10ba950c028fcf127be87e23e79680de1830f27e24178585fbf2599ff0bff
SHA512fc7d2fb98408fd64e0c2f873da1c07fa56771a685115c4b2d45f220159f46b29c7eaf4d11c044eaeb38c276f7fbe96a8e917f367be42b29ffe409f6e7c48e886
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Filesize
20KB
MD5c9ff7748d8fcef4cf84a5501e996a641
SHA102867e5010f62f97ebb0cfb32cb3ede9449fe0c9
SHA2564d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
SHA512d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73
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Filesize
262KB
MD5f0dac37ebcbdf6049fdaddd88f555fe2
SHA16f0195060249777d77c38622b1c3b0fd7cbc1dfd
SHA25603402214ff5c205ad0bcb67ee7785ff2a438f98cb1994ef5454f49115b3e1a3d
SHA51201862013d331209241812d0b4109db84fede0c8f245af2a718acd1e8925e01b2206ca8987ffb40b6bb2581b27cbcde71e77898c0eb9f1ba6a97e797e915a2239
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Filesize
448KB
MD545a6411ae7ba721a6a716968c91ed531
SHA1c4151fe5ed5116d7862eb440a67cdd8863e15fd9
SHA2564c310678afbf34039cb958393a37163d6ec6c5c334e9cebfc2b9511bbef9ff20
SHA512a178ad2af62cf2060dca53de5b1d6ff98f5c33842bb2b8b8b9aa1b416281ca0e635b4f31e7359b14cfb322a1c733328aa953fceea68c22ef2d5d27a4b0d3dd19
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Filesize
1.2MB
MD5f344794dc910dc343f92ded2c6b5e0ab
SHA1e5878518ce55ce5bd1890d5e04a82eb22d5a848a
SHA2563cf94707697ce0141960b05a15cbd3c3b791196995b1d21c4ff6bfb59997e235
SHA512ee00ad0c728c750b6c75001ba52df7ef367bebf1cbc01e2c9370dd42b1867b5347d5e68254f427dddde3214f2fae1341ab76c7faa3a4724e1d1d43fae97d3a58
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Filesize
84KB
MD5a276acc3fd657d7665bd4ddce8fb9749
SHA1c02642eec3f4e8b0314045ee95e0a15abd853ea8
SHA2566565f36d224ff27d89ad39a0d87f851f64308834d86e8a7cd02e9e1ea44187c8
SHA512178476d229ff011cb1f39048acae46b42a80b2ec209b283a8237604646b09224446c5bb3a690191c4fd58813611d7c06b4fb23699cd76ad020a5d0bf4d456d79
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Filesize
446KB
MD5485008b43f0edceba0e0d3ca04bc1c1a
SHA155ae8f105af415bb763d1b87f6572f078052877c
SHA25612c22ba646232d5d5087d0300d5cfd46fed424f26143a02dc866f1bfceab3c10
SHA512402652786daae635c7405f5fa0924d768cbde2086f9f57b10f00f921dec98e37168f5c3a6baa5593ba9a478f3971d32747c517ffd485d25634c924e6b08815b1
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Filesize
4.6MB
MD5397926927bca55be4a77839b1c44de6e
SHA1e10f3434ef3021c399dbba047832f02b3c898dbd
SHA2564f07e1095cc915b2d46eb149d1c3be14f3f4b4bd2742517265947fd23bdca5a7
SHA512cf54136b977fc8af7e8746d78676d0d464362a8cfa2213e392487003b5034562ee802e6911760b98a847bddd36ad664f32d849af84d7e208d4648bd97a2fa954
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Filesize
1.9MB
MD5a37ec6fd63b1d70d3d6206a292be1d51
SHA1cb5cdc36817f08ec07318ca9278430f329fb4b14
SHA2565110226be5822752077f259965f46aad25806764b6095c6e9339f23a3b5f3798
SHA51289a4cc6c10693138e1c965de593ea03f81601ca13d43de29899963a2d7319501c5f83b932ab884734da6d7b076ed53238310883596bb4e15973976dc99191746
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Filesize
224KB
MD53f109a02c8d642e8003a1188df40d861
SHA1f723f38471b8872443aa9177eef12a96c02cc84a
SHA2566523b44da6fa7078c7795b7705498e487b0625e28e15aec2d270c6e4a909b5a5
SHA512023696a52d48c465ab62e3ee754b445093b8a0ed0a232b430ce1f0db3dae382c9e1fba210c2b04d1018cc29bfb69c546976912f3939a76e98bcb792ae57af0da
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Filesize
84KB
MD5e68562f63265e1a70881446b4b9dc455
SHA1da16ef9367bde3ce892b1a0e33bc179d8acdceb3
SHA256c8b16f1c6883a23021da37d9116a757f971fe919d64ef8f9dba17a7d8dd39adb
SHA5126bedea10a5b50f6e93e8566c18970c8ad1b8dfc7d5961069fc5d5216dcdded0b2a2ad8dd91f4ad80f8604d573a343c126df238ee5c448cdc26b899077957a674
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Filesize
120KB
MD5f383f6f4e764619bd19e319335d3ef2b
SHA199f287e49a15e495b4ead8e5589364a5f87b357e
SHA25603951dfe05bf74c61568aed50b9d8ce5ecf0e0c2b8e73bc37e1a699ae7eebc9d
SHA5126fa960a084f42e6de25b74782d205c48ca9329997fc2ae8db902bb653da5e878ed92ced6b37472248d5bdc820fc48080ae4fce41556c4b20a049e30bf93d6934