Analysis
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max time kernel
121s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20-12-2022 14:39
Behavioral task
behavioral1
Sample
ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe
Resource
win10v2004-20220812-en
General
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Target
ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe
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Size
1.1MB
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MD5
7a029b7d88d91f669e4bbb026e8e79af
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SHA1
9da77bc6d352576fe1d4fbd9313d07ec9345c6c9
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SHA256
ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68
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SHA512
697ebe9775060733c72bff4473ff907ccc0fce8496ab5fb38b60184535e91d0d728ff68f763ff98ce0900ecace7a96a5bc610631ad3f0325dd482143b9ddb59f
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SSDEEP
24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO81WQHUq7:F0dwAYZt6C31WeTVRPOh17Uq7
Malware Config
Extracted
djvu
http://abibiall.com/test1/get.php
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extension
.isal
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offline_id
m3KmScxfDyEQzJYP8qjOSfP4FvpsOXlekGuMPzt1
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payload_url
http://uaery.top/dl/build2.exe
http://abibiall.com/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 1 IoCs
resource yara_rule behavioral2/files/0x0003000000000731-133.dat family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
pid Process 4816 build2.exe 820 build2.exe 32 build3.exe 776 mstsca.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation build2.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe -
Loads dropped DLL 2 IoCs
pid Process 820 build2.exe 820 build2.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 5020 icacls.exe -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ee4fbd31-6094-4b89-9d27-4377c38666ce\\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe\" --AutoStart" ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe -
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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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.2ip.ua 5 api.2ip.ua 28 api.2ip.ua -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4816 set thread context of 820 4816 build2.exe 88 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 build2.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString build2.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4884 schtasks.exe 2868 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3816 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 820 build2.exe 820 build2.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 4588 wrote to memory of 5020 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 83 PID 4588 wrote to memory of 5020 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 83 PID 4588 wrote to memory of 5020 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 83 PID 4588 wrote to memory of 4996 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 84 PID 4588 wrote to memory of 4996 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 84 PID 4588 wrote to memory of 4996 4588 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 84 PID 4996 wrote to memory of 4816 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 86 PID 4996 wrote to memory of 4816 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 86 PID 4996 wrote to memory of 4816 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 86 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4816 wrote to memory of 820 4816 build2.exe 88 PID 4996 wrote to memory of 32 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 89 PID 4996 wrote to memory of 32 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 89 PID 4996 wrote to memory of 32 4996 ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe 89 PID 32 wrote to memory of 4884 32 build3.exe 90 PID 32 wrote to memory of 4884 32 build3.exe 90 PID 32 wrote to memory of 4884 32 build3.exe 90 PID 820 wrote to memory of 4740 820 build2.exe 92 PID 820 wrote to memory of 4740 820 build2.exe 92 PID 820 wrote to memory of 4740 820 build2.exe 92 PID 4740 wrote to memory of 3816 4740 cmd.exe 94 PID 4740 wrote to memory of 3816 4740 cmd.exe 94 PID 4740 wrote to memory of 3816 4740 cmd.exe 94 PID 776 wrote to memory of 2868 776 mstsca.exe 102 PID 776 wrote to memory of 2868 776 mstsca.exe 102 PID 776 wrote to memory of 2868 776 mstsca.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe"C:\Users\Admin\AppData\Local\Temp\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4588 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\ee4fbd31-6094-4b89-9d27-4377c38666ce" /deny *S-1-1-0:(OI)(CI)(DE,DC)2⤵
- Modifies file permissions
PID:5020
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C:\Users\Admin\AppData\Local\Temp\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe"C:\Users\Admin\AppData\Local\Temp\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe" --Admin IsNotAutoStart IsNotTask2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4996 -
C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build2.exe"C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build2.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build2.exe"C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build2.exe"4⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build2.exe" & exit5⤵
- Suspicious use of WriteProcessMemory
PID:4740 -
C:\Windows\SysWOW64\timeout.exetimeout /t 66⤵
- Delays execution with timeout.exe
PID:3816
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C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build3.exe"C:\Users\Admin\AppData\Local\b26daedc-6695-4925-86f7-98e4ae3d8010\build3.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:32 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"4⤵
- Creates scheduled task(s)
PID:4884
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:776 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
PID:2868
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
133KB
MD58f73c08a9660691143661bf7332c3c27
SHA137fa65dd737c50fda710fdbde89e51374d0c204a
SHA2563fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA5120042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89
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Filesize
1.2MB
MD5bfac4e3c5908856ba17d41edcd455a51
SHA18eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA5122565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize2KB
MD50f419c66dbc4946c001394e2910c173d
SHA1e988a2291023e4c29b6442bfdeaacd9a83f0c640
SHA256763aeee4de549d18d1e3a30be29961f5ffe2ce794179d13a06f44dd57a0b6b48
SHA512c9d6c5459b055cecec7d7ed00f7774144b06fb2a4511bfc110a83577ed4517595a325f51e0579238d28550cf76de0a276f9d8bc322898c763b987a649e643918
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize1KB
MD5c6964c598d970f6c97ea4092e97d517d
SHA1690351843ee9c5dae635519f869192bb786207c6
SHA2568901c2d40e486f904090f6ee8e107197cdb876c5bfe5fd7ce2d212e3330eba4a
SHA5127fbaf67a4c6f9603c11ccfb42e65a42841c5f68baaf6817b84e0b48ad036636772adf06bc00b9b31ca33342b4c43854f6e5e750247bc718dd6ad1d5342e38aae
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
Filesize488B
MD53123cc0c2a934f52334dd83c200042c0
SHA1ea41973268ea3fdbf2c6ec34657cb25679616133
SHA25614d060340ec21ffc71e7f02da42bce33dea4c6cb66b0ea3ba38adad6a5a5fc84
SHA5125bfe4e1ec6cf6f63e7837ed929ee33ed241c8617075617cf2d8a271ecb8c53e8a7bbad4cd07967a05b468da0183d6b0ca5e631145a46da58bdfa09cdb595db2d
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
Filesize482B
MD58ba6db9e2e9ff97f0a2b5710947b808b
SHA1813396347491bc5c40182654d3b9e5b9b51f6238
SHA256cac8e48cf409159742d4cb3818fdf24eaa46faa37aae137420aef213bd7024ef
SHA5123111b2f43938857c388eac56967e0bca33d49540e210b1fbab8f69e8fc13ad7c9495ea220453576d5146cdaa50becb3157bf9c7aacbaee94bd4c2d8faabe7ec7
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Filesize
409KB
MD5a131064868de7468d2e768211431401b
SHA1381ad582f72b30b4764afe0a817569b384be65a2
SHA256027bcfc4c5b4a06371e94f4a6b5f69cbee5bcad651d91115132844a2c10885a1
SHA51240fc84899d7bed5c49980f984e3c1446dece3861e5e107fa71e1876f4b778aa8369f03422a971d144f8e65f62a109f53ba94e86bc6ddec478d1bc71f3bb29309
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Filesize
409KB
MD5a131064868de7468d2e768211431401b
SHA1381ad582f72b30b4764afe0a817569b384be65a2
SHA256027bcfc4c5b4a06371e94f4a6b5f69cbee5bcad651d91115132844a2c10885a1
SHA51240fc84899d7bed5c49980f984e3c1446dece3861e5e107fa71e1876f4b778aa8369f03422a971d144f8e65f62a109f53ba94e86bc6ddec478d1bc71f3bb29309
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Filesize
409KB
MD5a131064868de7468d2e768211431401b
SHA1381ad582f72b30b4764afe0a817569b384be65a2
SHA256027bcfc4c5b4a06371e94f4a6b5f69cbee5bcad651d91115132844a2c10885a1
SHA51240fc84899d7bed5c49980f984e3c1446dece3861e5e107fa71e1876f4b778aa8369f03422a971d144f8e65f62a109f53ba94e86bc6ddec478d1bc71f3bb29309
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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C:\Users\Admin\AppData\Local\ee4fbd31-6094-4b89-9d27-4377c38666ce\ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68.exe
Filesize1.1MB
MD57a029b7d88d91f669e4bbb026e8e79af
SHA19da77bc6d352576fe1d4fbd9313d07ec9345c6c9
SHA256ed9dec92feeedf235e033a889adc4fc3c04463569c50e58ec04d49d215081a68
SHA512697ebe9775060733c72bff4473ff907ccc0fce8496ab5fb38b60184535e91d0d728ff68f763ff98ce0900ecace7a96a5bc610631ad3f0325dd482143b9ddb59f
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a
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Filesize
9KB
MD59ead10c08e72ae41921191f8db39bc16
SHA1abe3bce01cd34afc88e2c838173f8c2bd0090ae1
SHA2568d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
SHA512aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a