Analysis
-
max time kernel
135s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 12:42
Static task
static1
Behavioral task
behavioral1
Sample
f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe
Resource
win7-20220901-en
General
-
Target
f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe
-
Size
566KB
-
MD5
ab610835f4360f1caad23202a39903af
-
SHA1
e7d6efb9fca719b56b23c6db1ae46f94f30e22e0
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SHA256
f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414
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SHA512
3c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c
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SSDEEP
6144:ArzbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9DjlDaq:AzQtqB5urTIoYWBQk1E+VF9mOx9dDN
Malware Config
Extracted
Protocol: smtp- Host:
smtp.mail.yahoo.com - Port:
587 - Username:
[email protected] - Password:
Madalina199@
Signatures
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NirSoft MailPassView 8 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe MailPassView behavioral1/memory/1988-64-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1988-65-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1988-68-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1988-69-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1988-71-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 8 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView C:\Users\Admin\AppData\Roaming\Windows Update.exe WebBrowserPassView behavioral1/memory/1096-72-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1096-73-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/1096-76-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1096-77-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1096-79-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 13 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft C:\Users\Admin\AppData\Roaming\Windows Update.exe Nirsoft behavioral1/memory/1988-64-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1988-65-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1988-68-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1988-69-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1988-71-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1096-72-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1096-73-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/1096-76-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1096-77-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1096-79-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
Processes:
Windows Update.exepid process 1720 Windows Update.exe -
Deletes itself 1 IoCs
Processes:
Windows Update.exepid process 1720 Windows Update.exe -
Loads dropped DLL 1 IoCs
Processes:
f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exepid process 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 6 whatismyipaddress.com 3 whatismyipaddress.com 5 whatismyipaddress.com -
Suspicious use of SetThreadContext 2 IoCs
Processes:
Windows Update.exedescription pid process target process PID 1720 set thread context of 1988 1720 Windows Update.exe vbc.exe PID 1720 set thread context of 1096 1720 Windows Update.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Processes:
Windows Update.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25 Windows Update.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 Windows Update.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 Windows Update.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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 Windows Update.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
Windows Update.exepid process 1720 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Windows Update.exedescription pid process Token: SeDebugPrivilege 1720 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Windows Update.exepid process 1720 Windows Update.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exeWindows Update.exedescription pid process target process PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 2028 wrote to memory of 1720 2028 f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe Windows Update.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1988 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe PID 1720 wrote to memory of 1096 1720 Windows Update.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe"C:\Users\Admin\AppData\Local\Temp\f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Deletes itself
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1720 -
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"3⤵
- Accesses Microsoft Outlook accounts
PID:1988 -
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"3⤵PID:1096
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
102B
MD5a17f355391ac664d7a8d7868a436b49e
SHA1a4759aea85429f1250915992120336c498415be9
SHA256d5c81e799b056f41d4df212446f185093d169e564770e06e1638090dca3f1275
SHA5126a7ebc0e7a26006f1322592c2cec0620c96f82ba321d146828f0f7bb8efcffac4ef25eb8183e257945754f7f7808bf90588f0725829c49bb97f909299832fa34
-
Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
566KB
MD5ab610835f4360f1caad23202a39903af
SHA1e7d6efb9fca719b56b23c6db1ae46f94f30e22e0
SHA256f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414
SHA5123c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c
-
Filesize
566KB
MD5ab610835f4360f1caad23202a39903af
SHA1e7d6efb9fca719b56b23c6db1ae46f94f30e22e0
SHA256f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414
SHA5123c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c
-
Filesize
566KB
MD5ab610835f4360f1caad23202a39903af
SHA1e7d6efb9fca719b56b23c6db1ae46f94f30e22e0
SHA256f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414
SHA5123c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c