Analysis
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max time kernel
81s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
22-11-2022 19:02
Static task
static1
Behavioral task
behavioral1
Sample
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
Resource
win10v2004-20220812-en
General
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Target
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
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Size
1.1MB
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MD5
c311711a2b54c663916925c8d1171881
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SHA1
946d5729d2fa83a4f2f56f29d1f2271dd2cf34af
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SHA256
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560
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SHA512
64bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7
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SSDEEP
24576:L72nfRhfpJo+WdC6OJilSdh1l6NYZMeL/3C5essn17hiUMJ:vkJhxJmc64WSn1lvZtbC53sn1liUM
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe" 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe -
NirSoft MailPassView 9 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe MailPassView C:\Users\Admin\AppData\Local\Temp\tmp.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView behavioral2/memory/1448-152-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral2/memory/2328-159-0x0000000000000000-mapping.dmp MailPassView behavioral2/memory/2328-160-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2328-162-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/2328-163-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 10 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe WebBrowserPassView C:\Users\Admin\AppData\Local\Temp\tmp.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView behavioral2/memory/1448-152-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral2/memory/4036-164-0x0000000000000000-mapping.dmp WebBrowserPassView behavioral2/memory/4036-165-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4036-167-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4036-168-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4036-170-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 14 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe Nirsoft C:\Users\Admin\AppData\Local\Temp\tmp.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft behavioral2/memory/1448-152-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral2/memory/2328-159-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/2328-160-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2328-162-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/2328-163-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4036-164-0x0000000000000000-mapping.dmp Nirsoft behavioral2/memory/4036-165-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4036-167-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4036-168-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4036-170-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 2 IoCs
Processes:
tmp.exeWindows Update.exepid process 1384 tmp.exe 216 Windows Update.exe -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
wscript.exe3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exetmp.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation wscript.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation tmp.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Windows Update.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" Windows Update.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 12 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exeWindows Update.exedescription pid process target process PID 1232 set thread context of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 216 set thread context of 2328 216 Windows Update.exe vbc.exe PID 216 set thread context of 4036 216 Windows Update.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exevbc.exepid process 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 4036 vbc.exe 4036 vbc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exeWindows Update.exedescription pid process Token: SeDebugPrivilege 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe Token: SeDebugPrivilege 216 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 216 Windows Update.exe -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.execmd.exewscript.exetmp.exeWindows Update.exedescription pid process target process PID 1232 wrote to memory of 1276 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe cmd.exe PID 1232 wrote to memory of 1276 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe cmd.exe PID 1232 wrote to memory of 1276 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe cmd.exe PID 1276 wrote to memory of 1308 1276 cmd.exe wscript.exe PID 1276 wrote to memory of 1308 1276 cmd.exe wscript.exe PID 1276 wrote to memory of 1308 1276 cmd.exe wscript.exe PID 1232 wrote to memory of 1384 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe tmp.exe PID 1232 wrote to memory of 1384 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe tmp.exe PID 1232 wrote to memory of 1384 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe tmp.exe PID 1308 wrote to memory of 2304 1308 wscript.exe cmd.exe PID 1308 wrote to memory of 2304 1308 wscript.exe cmd.exe PID 1308 wrote to memory of 2304 1308 wscript.exe cmd.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1232 wrote to memory of 1448 1232 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe 3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe PID 1384 wrote to memory of 216 1384 tmp.exe Windows Update.exe PID 1384 wrote to memory of 216 1384 tmp.exe Windows Update.exe PID 1384 wrote to memory of 216 1384 tmp.exe Windows Update.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 2328 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe PID 216 wrote to memory of 4036 216 Windows Update.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe"C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1232 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\\mata.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1276 -
C:\Windows\SysWOW64\wscript.exewscript.exe "C:\Users\Admin\AppData\Local\Temp\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\mata2.bat3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mata2.bat" "4⤵PID:2304
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"4⤵
- Accesses Microsoft Outlook accounts
PID:2328 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4036 -
C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exeC:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe2⤵PID:1448
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe.log
Filesize774B
MD5049b2c7e274ebb68f3ada1961c982a22
SHA1796b9f03c8cd94617ea26aaf861af9fb2a5731db
SHA2565c69c41dceda1bb32d4054d6b483bb3e3af84c8cf0a6191c79068168a1d506b3
SHA512fb2ee642e1401772d514e86b0b8dd117659335066242e85c158b40e8912572f2bd7b9a0f63f9b9f4d7a2e051579345215f6b1f147881f3d1e78f335c45d78ebf
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Filesize
41B
MD5fa4a6393f371a289f6b187ba6aaada19
SHA184f4f1eedd713c86f97605f7e8a23a1f2d2678a3
SHA25653ea98bb79bd329140803195f5c46b117986bdeba86f301f9613de657f38b528
SHA5122c6d8429aa7bfb9b2357c3ef710a5d98cd1cb62f29ba36091ddf4a05fe28cc7b35a4609aa7cd1e1f59350c004e2ab9f1c18cc2506bde92f64d6fa3413e0a0519
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Filesize
1.1MB
MD5c311711a2b54c663916925c8d1171881
SHA1946d5729d2fa83a4f2f56f29d1f2271dd2cf34af
SHA2563857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560
SHA51264bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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Filesize
78B
MD5c578d9653b22800c3eb6b6a51219bbb8
SHA1a97aa251901bbe179a48dbc7a0c1872e163b1f2d
SHA25620a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2
SHA5123ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d
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Filesize
47B
MD558c538a6ae20a3c6031217903cdf8e5d
SHA1399fd50eadf4945b665877facfc4f53d16e18b1e
SHA2566bcc0e04d9bc32209d90a65c320dc6363e523dd94b38b17bcdc5b980b6405f53
SHA512c01828a5390fec3443e19d317137ae873de77c7737db7802650430e6a0a1edbd3aabe362903243b372536418fbd8482c2a6efd122d853744a41ade567956c359
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Filesize
47B
MD5095b2908ae8b2e0e3704c0163f26e283
SHA13429b6c1421d448c98c1da9625badcea2484a521
SHA25622b182644ab28f5e9e17b5a03ba404d09b02da367146b80484584adc842a3ed1
SHA512e22e379b4f0d8e11fa7c29c3297a3e24a533fb08895d18e9bb27e8cab84da1dd52ff437aca90c5c32a9bdb578b3c1bfb3ff42d3bc2c5951ffeb5941c8286c731
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Filesize
1.1MB
MD5c311711a2b54c663916925c8d1171881
SHA1946d5729d2fa83a4f2f56f29d1f2271dd2cf34af
SHA2563857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560
SHA51264bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7
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Filesize
502KB
MD55d6c71a513f5f6b0a8e879d092f00bcf
SHA1c1029f428c6fe571e5ab2f5c1170f4dd60154f51
SHA2565d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590
SHA512364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4
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Filesize
502KB
MD55d6c71a513f5f6b0a8e879d092f00bcf
SHA1c1029f428c6fe571e5ab2f5c1170f4dd60154f51
SHA2565d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590
SHA512364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4
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Filesize
502KB
MD55d6c71a513f5f6b0a8e879d092f00bcf
SHA1c1029f428c6fe571e5ab2f5c1170f4dd60154f51
SHA2565d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590
SHA512364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4
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Filesize
502KB
MD55d6c71a513f5f6b0a8e879d092f00bcf
SHA1c1029f428c6fe571e5ab2f5c1170f4dd60154f51
SHA2565d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590
SHA512364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4