bcf1588f161b471037ef56dc9b3b62baee4fbe4ef9f194a8c83b4703b77b7c8a

Analysis

max time kernel
164s
max time network
173s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/06/2024, 00:19

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Reason

Machine shutdown

General

Target
cybershell.exe
Size 7.6MB
Sample240613-amklsazhlm
SHA256 bcf1588f161b471037ef56dc9b3b62baee4fbe4ef9f194a8c83b4703b77b7c8a
MD5 48bc78997c651e875ac4754b9d9e1ac8
SHA1 62a649b62e63fb4a5e98a084a0a19cb2a0e344ab
SHA512 4bdcf1aa033a5f30d0d1eeba569adcf066d91ba4b8c229ae6d41aa8fade6a5a7c169bbb1c1ae36b7ec0a346f82763f95c6d846cae6bbcc9ce2bbef9ff7833233
SSDEEP 196608:zcKAKcHwuLlA1HeT39Iigwh1ncKOVVtk7EJtQWN94P:IkcQr1+TtIiFv0VQk6L
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 14 IoCs

pid	Process
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe
3412	cybershell.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "221"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	864	shutdown.exe
Token: SeRemoteShutdownPrivilege	864	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4344	LogonUI.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 636 wrote to memory of 3412	636	cybershell.exe	92
PID 636 wrote to memory of 3412	636	cybershell.exe	92
PID 3412 wrote to memory of 1544	3412	cybershell.exe	103
PID 3412 wrote to memory of 1544	3412	cybershell.exe	103
PID 1544 wrote to memory of 864	1544	cmd.exe	104
PID 1544 wrote to memory of 864	1544	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\cybershell.exe
"C:\Users\Admin\AppData\Local\Temp\cybershell.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:636
- C:\Users\Admin\AppData\Local\Temp\cybershell.exe
  "C:\Users\Admin\AppData\Local\Temp\cybershell.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3412
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "shutdown /s /t 0"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1544
  - - C:\Windows\system32\shutdown.exe
      shutdown /s /t 0
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:864

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1040 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
PID:456

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3993855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:4344

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

VCRUNTIME140.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\VCRUNTIME140.dll
Size 116KB
SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
MD5 be8dbe2dc77ebe7f88f910c61aec691a
SHA1 a19f08bb2b1c1de5bb61daf9f2304531321e0e40
SHA512 0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655
SSDEEP 1536:+qvQ1Dj2DkX7OcujarvmdlYNABCmgrP4ddbkZIecbWcFML/UXzlghzdMFw84hzk:+qvQ1D2CreiABCmgYecbWVLUD6h+b4ho
MD5 SHA1 SHA512 SSDEEP

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VCRUNTIME140_1.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\VCRUNTIME140_1.dll
Size 48KB
SHA256 a113f192195f245f17389e6ecbed8005990bcb2476ddad33f7c4c6c86327afe5
MD5 f8dfa78045620cf8a732e67d1b1eb53d
SHA1 ff9a604d8c99405bfdbbf4295825d3fcbc792704
SHA512 ba7f8b7ab0deb7a7113124c28092b543e216ca08d1cf158d9f40a326fb69f4a2511a41a59ea8482a10c9ec4ec8ac69b70dfe9ca65e525097d93b819d498da371
SSDEEP 768:wPIyGVrxmKqOnA4j3z6Su77A+i0QLxi9z9Rtii9zn+:fBr87uW1nA8QLx+zrti+zn+
MD5 SHA1 SHA512 SSDEEP

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_bz2.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_bz2.pyd
Size 83KB
SHA256 3ed0e5058d370fb14aa5469d81f96c5685559c054917c7280dd4125f21d25f62
MD5 5bebc32957922fe20e927d5c4637f100
SHA1 a94ea93ee3c3d154f4f90b5c2fe072cc273376b3
SHA512 afbe80a73ee9bd63d9ffa4628273019400a75f75454667440f43beb253091584bf9128cbb78ae7b659ce67a5faefdba726edb37987a4fe92f082d009d523d5d6
SSDEEP 1536:i2sz7yc51BVo1QX/FPI11IK1cDm015ssO687sjkD1ISCV087Syyxt+:dsz2c5eQXB4am05spd7MkD1ISCVzL
MD5 SHA1 SHA512 SSDEEP

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_ctypes.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_ctypes.pyd
Size 122KB
SHA256 74e0e8384f6c2503215f4cf64c92efe7257f1aec44f72d67ad37dc8ba2530bc1
MD5 fb454c5e74582a805bc5e9f3da8edc7b
SHA1 782c3fa39393112275120eaf62fc6579c36b5cf8
SHA512 727ada80098f07849102c76b484e9a61fb0f7da328c0276d82c6ee08213682c89deeb8459139a3fbd7f561bffaca91650a429e1b3a1ff8f341cebdf0bfa9b65d
SSDEEP 3072:CXw32spTVYgFoj6N2xE9sb7VFf/EkZBq5syCtYPU9pISLPTj:CgGEOgFoj68ksTf/ENs7
MD5 SHA1 SHA512 SSDEEP

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_decimal.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_decimal.pyd
Size 251KB
SHA256 b8221d1c9e2c892dd6227a6042d1e49200cd5cb82adbd998e4a77f4ee0e9abf1
MD5 492c0c36d8ed1b6ca2117869a09214da
SHA1 b741cae3e2c9954e726890292fa35034509ef0f6
SHA512 b8f1c64ad94db0252d96082e73a8632412d1d73fb8095541ee423df6f00bc417a2b42c76f15d7e014e27baae0ef50311c3f768b1560db005a522373f442e4be0
SSDEEP 6144:vnXBJvhy8AJOMg4hmRWw710z4ez9qWM53pLW1AW/ZJJJWtCk1mGc:ByJJOMiRW+10EHFpNc
MD5 SHA1 SHA512 SSDEEP

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_hashlib.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_hashlib.pyd
Size 64KB
SHA256 fd77a5756a17ec0788989f73222b0e7334dd4494b8c8647b43fe554cf3cfb354
MD5 da02cefd8151ecb83f697e3bd5280775
SHA1 1c5d0437eb7e87842fde55241a5f0ca7f0fc25e7
SHA512 a13bc5c481730f48808905f872d92cb8729cc52cfb4d5345153ce361e7d6586603a58b964a1ebfd77dd6222b074e5dcca176eaaefecc39f75496b1f8387a2283
SSDEEP 1536:JgHpgE4Z27b4ZWZnEmIAtISOIx7SyZUxN:i14ZeEmIAtISOIx7+
MD5 SHA1 SHA512 SSDEEP

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_lzma.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_lzma.pyd
Size 156KB
SHA256 7bf9ff61babebd90c499a8ed9b62141f947f90d87e0bbd41a12e99d20e06954a
MD5 195defe58a7549117e06a57029079702
SHA1 3795b02803ca37f399d8883d30c0aa38ad77b5f2
SHA512 c47a9b1066dd9744c51ed80215bd9645aab6cc9d6a3f9df99f618e3dd784f6c7ce6f53eabe222cf134ee649250834193d5973e6e88f8a93151886537c62e2e2b
SSDEEP 3072:Bsvkxuqgo7e2uONqG+hi+CSznfF9mNopXnmnu1ISZ1Vk:BnuFo7Jg1NYOp2uO
MD5 SHA1 SHA512 SSDEEP

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_socket.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_socket.pyd
Size 81KB
SHA256 b102522c23dac2332511eb3502466caf842d6bcd092fbc276b7b55e9cc01b085
MD5 dd8ff2a3946b8e77264e3f0011d27704
SHA1 a2d84cfc4d6410b80eea4b25e8efc08498f78990
SHA512 958224a974a3449bcfb97faab70c0a5b594fa130adc0c83b4e15bdd7aab366b58d94a4a9016cb662329ea47558645acd0e0cc6df54f12a81ac13a6ec0c895cd8
SSDEEP 1536:ldcydNgIznrvGvLfo4o7zfqwXJ9/s+S+pzo08/n1IsJhv6cpISLwV97Sy7UxV:l6ydrr+DgxjqwXJ9/sT+pzoN1IwhScpf
MD5 SHA1 SHA512 SSDEEP

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_ssl.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_ssl.pyd
Size 174KB
SHA256 a5d361707f7a2a2d726b20770e8a6fc25d753be30bcbcbbb683ffee7959557c2
MD5 c87c5890039c3bdb55a8bc189256315f
SHA1 84ef3c2678314b7f31246471b3300da65cb7e9de
SHA512 e750dc36ae00249ed6da1c9d816f1bd7f8bc84ddea326c0cd0410dbcfb1a945aac8c130665bfacdccd1ee2b7ac097c6ff241bfc6cc39017c9d1cde205f460c44
SSDEEP 3072:AHtmUArl7bOGLbfbmeq2wfq6XDQJsY2GvMe1ba+VRJNI7IM/H9o/PCrXuI51ISCQ:Ym5lfOGLbjBOq6XD4MejTGl
MD5 SHA1 SHA512 SSDEEP

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_wmi.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\_wmi.pyd
Size 36KB
SHA256 752fb80edb51f45d3cc1c046f3b007802432b91aef400c985640d6b276a67c12
MD5 8a9a59559c614fc2bcebb50073580c88
SHA1 4e4ced93f2cb5fe6a33c1484a705e10a31d88c4d
SHA512 9b17c81ff89a41307740371cb4c2f5b0cf662392296a7ab8e5a9eba75224b5d9c36a226dce92884591636c343b8238c19ef61c1fdf50cc5aa2da86b1959db413
SSDEEP 768:9mqQhTcYv/NxO01ISCiO5YiSyvoAMxkEzef:9m7GINxO01ISCik7SyOxvef
MD5 SHA1 SHA512 SSDEEP

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base_library.zip

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\base_library.zip
Size 1.3MB
SHA256 c611943f0aeb3292d049437cb03500cc2f8d12f23faf55e644bca82f43679bc0
MD5 43935f81d0c08e8ab1dfe88d65af86d8
SHA1 abb6eae98264ee4209b81996c956a010ecf9159b
SHA512 06a9dcd310aa538664b08f817ec1c6cfa3f748810d76559c46878ea90796804904d41ac79535c7f63114df34c0e5de6d0452bb30df54b77118d925f21cfa1955
SSDEEP 12288:NttcY+bS4OmE1jc+fYNXPh26UZWAzDX7jOIqL3QtltIrdmoPFHz1dc+4/BaYcUz:NttcY+NHSPD/eMKrdmoPxzFcaYcUz
MD5 SHA1 SHA512 SSDEEP

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libcrypto-3.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\libcrypto-3.dll
Size 5.0MB
SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
MD5 e547cf6d296a88f5b1c352c116df7c0c
SHA1 cafa14e0367f7c13ad140fd556f10f320a039783
SHA512 9f42edf04c7af350a00fa4fdf92b8e2e6f47ab9d2d41491985b20cd0adde4f694253399f6a88f4bdd765c4f49792f25fb01e84ec03fd5d0be8bb61773d77d74d
SSDEEP 98304:n3+pefu6fSar+SJ8aqfPomg1CPwDvt3uFlDCE:3G+u6fb+SJ8aqfwmg1CPwDvt3uFlDCE
MD5 SHA1 SHA512 SSDEEP

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libffi-8.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\libffi-8.dll
Size 38KB
SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
MD5 0f8e4992ca92baaf54cc0b43aaccce21
SHA1 c7300975df267b1d6adcbac0ac93fd7b1ab49bd2
SHA512 6e1b223462dc124279bfca74fd2c66fe18b368ffbca540c84e82e0f5bcbea0e10cc243975574fa95ace437b9d8b03a446ed5ee0c9b1b094147cefaf704dfe978
SSDEEP 768:NiQfxQemQJNrPN+moyijAc5YiSyvkIPxWEqG:dfxIQvPkmoyijP7SytPxF
MD5 SHA1 SHA512 SSDEEP

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libssl-3.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\libssl-3.dll
Size 768KB
SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
MD5 19a2aba25456181d5fb572d88ac0e73e
SHA1 656ca8cdfc9c3a6379536e2027e93408851483db
SHA512 df17dc8a882363a6c5a1b78ba3cf448437d1118ccc4a6275cc7681551b13c1a4e0f94e30ffb94c3530b688b62bff1c03e57c2c185a7df2bf3e5737a06e114337
SSDEEP 12288:ytPc2nnGoNg4kSHoxX09yO5EavUFe9Xb12:y9jnnpTHoxXUsFe9XbM
MD5 SHA1 SHA512 SSDEEP

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python312.dll

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\python312.dll
Size 6.6MB
SHA256 21700f0bad5769a1b61ea408dc0a140ffd0a356a774c6eb0cc70e574b929d2e2
MD5 d521654d889666a0bc753320f071ef60
SHA1 5fd9b90c5d0527e53c199f94bad540c1e0985db6
SHA512 7a726835423a36de80fb29ef65dfe7150bd1567cac6f3569e24d9fe091496c807556d0150456429a3d1a6fd2ed0b8ae3128ea3b8674c97f42ce7c897719d2cd3
SSDEEP 49152:PPknDqOJlpxSupRo2vXDZ2lgghXQIX2CG4Ts99kdwQAvyodh1GCOepxk1NHh8yfE:kdlpx9p5Loehv6JfDvXHDMiETH+0Tn
MD5 SHA1 SHA512 SSDEEP

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select.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\select.pyd
Size 30KB
SHA256 411d6f538bdbaf60f1a1798fa8aa7ed3a4e8fcc99c9f9f10d21270d2f3742019
MD5 d0cc9fc9a0650ba00bd206720223493b
SHA1 295bc204e489572b74cc11801ed8590f808e1618
SHA512 d3ebcb91d1b8aa247d50c2c4b2ba1bf3102317c593cbf6c63883e8bf9d6e50c0a40f149654797abc5b4f17aee282ddd972a8cd9189bfcd5b9cec5ab9c341e20b
SSDEEP 384:2RVBC9t6Lhz64wHqFslDT90YpISQGrHQIYiSy1pCQ+42AM+o/8E9VF0Nyes:YGyIHqG1HpISQG75YiSyvB2AMxkEp
MD5 SHA1 SHA512 SSDEEP

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unicodedata.pyd

Path C:\Users\Admin\AppData\Local\Temp\_MEI6362\unicodedata.pyd
Size 1.1MB
SHA256 bc2cf23b7b7491edcf03103b78dbaf42afd84a60ea71e764af9a1ddd0fe84268
MD5 cc8142bedafdfaa50b26c6d07755c7a6
SHA1 0fcab5816eaf7b138f22c29c6d5b5f59551b39fe
SHA512 c3b0c1dbe5bf159ab7706f314a75a856a08ebb889f53fe22ab3ec92b35b5e211edab3934df3da64ebea76f38eb9bfc9504db8d7546a36bc3cabe40c5599a9cbd
SSDEEP 12288:LrEHdcM6hbqCjJ43w9hIpCQvb0QN8MdIEQ+U2BNNmD+99FfcAjL:LrEXPCjfk7bPNfv42BN6yzUAjL
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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