Analysis
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max time kernel
134s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 13:46
Static task
static1
Behavioral task
behavioral1
Sample
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe
Resource
win10v2004-20221111-en
General
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Target
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe
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Size
1.1MB
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MD5
628159cada256516f610bbe6db816f77
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SHA1
3d707cc93337e5d875861e01e363e10be7248702
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SHA256
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70
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SHA512
cc86a5fdc6d506c3b838ea83ced31d7264ab32296b45993f3a20af2ecd521f81dfb426eda345e4615e3505ace632b1c1a9551d418c835625ab61123b3a40d965
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SSDEEP
24576:1ALejTbyeniCQEx88bUJevBnDa58aY+zX52t4/xpeJ2YYHv:1M4GCF8uU8cgk4tAxpsQv
Malware Config
Extracted
Protocol: smtp- Host:
smtp.gmail.com - Port:
587 - Username:
[email protected] - Password:
qwerty@321
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe" 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe -
NirSoft MailPassView 14 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe MailPassView \Users\Admin\AppData\Local\Temp\tmp.exe MailPassView C:\Users\Admin\AppData\Local\Temp\tmp.exe MailPassView behavioral1/memory/580-68-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/580-69-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/580-71-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/1724-72-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1724-73-0x0000000000411654-mapping.dmp MailPassView behavioral1/memory/1724-76-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1724-78-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/1724-80-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral1/memory/580-81-0x000000000047EA6E-mapping.dmp MailPassView behavioral1/memory/580-84-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView behavioral1/memory/580-86-0x0000000000400000-0x0000000000484000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 13 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe WebBrowserPassView \Users\Admin\AppData\Local\Temp\tmp.exe WebBrowserPassView C:\Users\Admin\AppData\Local\Temp\tmp.exe WebBrowserPassView behavioral1/memory/580-68-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/580-69-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/580-71-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/580-81-0x000000000047EA6E-mapping.dmp WebBrowserPassView behavioral1/memory/580-84-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/580-86-0x0000000000400000-0x0000000000484000-memory.dmp WebBrowserPassView behavioral1/memory/1508-93-0x0000000000442628-mapping.dmp WebBrowserPassView behavioral1/memory/1508-92-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1508-96-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral1/memory/1508-98-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 18 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\tmp.exe Nirsoft \Users\Admin\AppData\Local\Temp\tmp.exe Nirsoft C:\Users\Admin\AppData\Local\Temp\tmp.exe Nirsoft behavioral1/memory/580-68-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/580-69-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/580-71-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/1724-72-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1724-73-0x0000000000411654-mapping.dmp Nirsoft behavioral1/memory/1724-76-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1724-78-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/1724-80-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral1/memory/580-81-0x000000000047EA6E-mapping.dmp Nirsoft behavioral1/memory/580-84-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/580-86-0x0000000000400000-0x0000000000484000-memory.dmp Nirsoft behavioral1/memory/1508-93-0x0000000000442628-mapping.dmp Nirsoft behavioral1/memory/1508-92-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1508-96-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral1/memory/1508-98-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Executes dropped EXE 2 IoCs
Processes:
tmp.exenotepad .exepid process 1380 tmp.exe 580 notepad .exe -
Loads dropped DLL 2 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exepid process 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.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 -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
tmp.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" tmp.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 5 whatismyipaddress.com 6 whatismyipaddress.com 3 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exetmp.exedescription pid process target process PID 1464 set thread context of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1380 set thread context of 1724 1380 tmp.exe vbc.exe PID 1380 set thread context of 1508 1380 tmp.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 2 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exepid process 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exetmp.exedescription pid process Token: SeDebugPrivilege 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe Token: SeDebugPrivilege 1380 tmp.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
tmp.exepid process 1380 tmp.exe -
Suspicious use of WriteProcessMemory 41 IoCs
Processes:
871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.execmd.exetmp.exedescription pid process target process PID 1464 wrote to memory of 1704 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe cmd.exe PID 1464 wrote to memory of 1704 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe cmd.exe PID 1464 wrote to memory of 1704 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe cmd.exe PID 1464 wrote to memory of 1704 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe cmd.exe PID 1704 wrote to memory of 824 1704 cmd.exe wscript.exe PID 1704 wrote to memory of 824 1704 cmd.exe wscript.exe PID 1704 wrote to memory of 824 1704 cmd.exe wscript.exe PID 1704 wrote to memory of 824 1704 cmd.exe wscript.exe PID 1464 wrote to memory of 1380 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe tmp.exe PID 1464 wrote to memory of 1380 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe tmp.exe PID 1464 wrote to memory of 1380 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe tmp.exe PID 1464 wrote to memory of 1380 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe tmp.exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1464 wrote to memory of 580 1464 871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe notepad .exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1724 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe PID 1380 wrote to memory of 1508 1380 tmp.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe"C:\Users\Admin\AppData\Local\Temp\871538f3f68fa01e94cdc5d0330a64133b933ba4ff14be18dac92b07f366ea70.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\\mata.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Windows\SysWOW64\wscript.exewscript.exe "C:\Windows\temp\invs.vbs" "C:\Windows\temp\mata2.bat3⤵PID:824
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- 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:1380 -
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:1724 -
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:1508
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C:\Users\Admin\AppData\Local\Temp\notepad .exe"C:\Users\Admin\AppData\Local\Temp\notepad .exe"2⤵
- Executes dropped EXE
PID:580
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
69B
MD51d3598a9affc15c286c78b40a665bffc
SHA1dad491b8d033ce7dd37b8cade0eb6f8fdb61ecdf
SHA256524357b7b65b324c1c32607ba9cc71fed6437c502540c059732e8a44a6129bb2
SHA5123c7ccc403d9c515f04acc99607609cd2254b2f5a21667f4df5706297e4a5ef15a161da839e325b755f6f9eec8b47e060ec1a027b0092c5b70cbbbb853228d0a2
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Filesize
52KB
MD5278edbd499374bf73621f8c1f969d894
SHA1a81170af14747781c5f5f51bb1215893136f0bc0
SHA256c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391
SHA51293b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9
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Filesize
52KB
MD5278edbd499374bf73621f8c1f969d894
SHA1a81170af14747781c5f5f51bb1215893136f0bc0
SHA256c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391
SHA51293b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9
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Filesize
502KB
MD5dd2f48d0d1fbc39d67d398c02dd03d08
SHA1f34c3bd0511d0fe4f3a7417b31ccdf7ae8d4b807
SHA256b3d5c2e7a04dd9b3c5da94b91b5783e2f1e65a6ddb26b86b62bc7f9d68986d1f
SHA51222ebb2c8bf613987ded5f8e50a0edd6e19203b1187a52bdc442c4fa77113d8b3ba40b15d9b1af48f89b0153e3ab7c877d4d05a4c8a6a8bb6add1fda2fdac693c
-
Filesize
502KB
MD5dd2f48d0d1fbc39d67d398c02dd03d08
SHA1f34c3bd0511d0fe4f3a7417b31ccdf7ae8d4b807
SHA256b3d5c2e7a04dd9b3c5da94b91b5783e2f1e65a6ddb26b86b62bc7f9d68986d1f
SHA51222ebb2c8bf613987ded5f8e50a0edd6e19203b1187a52bdc442c4fa77113d8b3ba40b15d9b1af48f89b0153e3ab7c877d4d05a4c8a6a8bb6add1fda2fdac693c
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Filesize
52KB
MD5278edbd499374bf73621f8c1f969d894
SHA1a81170af14747781c5f5f51bb1215893136f0bc0
SHA256c6999b9f79932c3b4f1c461a69d9dc8dc301d6a155abc33efe1b6e9e4a038391
SHA51293b0b5c3324bd2df83310f96d34c9176c94d2d676766599c1af33c98ba1efe63187056671f7c6f80c956e5bd0a725f108804021ad93326286bb9c3a96f6550b9
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Filesize
502KB
MD5dd2f48d0d1fbc39d67d398c02dd03d08
SHA1f34c3bd0511d0fe4f3a7417b31ccdf7ae8d4b807
SHA256b3d5c2e7a04dd9b3c5da94b91b5783e2f1e65a6ddb26b86b62bc7f9d68986d1f
SHA51222ebb2c8bf613987ded5f8e50a0edd6e19203b1187a52bdc442c4fa77113d8b3ba40b15d9b1af48f89b0153e3ab7c877d4d05a4c8a6a8bb6add1fda2fdac693c