Analysis
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max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
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submitted
12-09-2023 12:24
General
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Target
5e86e15a56455a7b230d2a934ad129a5.exe
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Size
494KB
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MD5
5e86e15a56455a7b230d2a934ad129a5
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SHA1
6b0a1beffe90cf58d1e442612458d18b59a852a4
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SHA256
78732997a6c9d975b97da85fc511533d44083a9f9da60dae8393274a59b7bfce
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SHA512
6dc0c23f825a36db50adf41795a2da3ae962ebd9eef07a923e629a8a32ac2a7aff87e19f1682a259cde6aa83c13c41e7e5ce4f7988680feaaedbe049208401e5
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SSDEEP
12288:wWwjzdKu2piK6lVOx7j5S8U9a/tUvuNX7Y:Pwjzd+gE99XAC
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\Users\Admin\Desktop\info.hta
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
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Renames multiple (312) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 1 TTPs 2 IoCs
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Drops startup file 3 IoCs
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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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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Internet Explorer settings 1 TTPs 4 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 64 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe"C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exeC:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe2⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe"C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exeC:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exeC:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe4⤵
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C:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exeC:\Users\Admin\AppData\Local\Temp\5e86e15a56455a7b230d2a934ad129a5.exe4⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off4⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable4⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta"3⤵
- Modifies Internet Explorer settings
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
143.1MB
MD58ecd77b7606f78a7dae6ab3ad845d343
SHA1675e0d893e8325f4cbbe4460e28c9b03f6b98278
SHA256fd337fe4b759035ab133ba1963d970283a9ed00970e5744c58b0b69e6207b6f4
SHA512c80416dd767ac9d779da643d6e59e53f10d618cef5892595e148e0a690b962c902a6b5b1605874693b0e8869d4473cb19be60fec83bd4b0ee16b3fc637ce2484
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Filesize
5KB
MD500331ed587a64a4cc575234129b06549
SHA19ed558bef0de881f47c41de92c89760349f67336
SHA256451f905236322ae1085481d5d983588d734255546c1a68071f161b9debb99ecf
SHA5121b73e9423e2b49ec4b20e4d1a92a38fa9b7f3f41cf6953d731e567ceb74273a6cc2edcd67ba6ef6fc2c65f448b331e4dec4bfbf1c2d8c8a00de89c02f224c25f
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Filesize
5KB
MD500331ed587a64a4cc575234129b06549
SHA19ed558bef0de881f47c41de92c89760349f67336
SHA256451f905236322ae1085481d5d983588d734255546c1a68071f161b9debb99ecf
SHA5121b73e9423e2b49ec4b20e4d1a92a38fa9b7f3f41cf6953d731e567ceb74273a6cc2edcd67ba6ef6fc2c65f448b331e4dec4bfbf1c2d8c8a00de89c02f224c25f
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Filesize
5KB
MD500331ed587a64a4cc575234129b06549
SHA19ed558bef0de881f47c41de92c89760349f67336
SHA256451f905236322ae1085481d5d983588d734255546c1a68071f161b9debb99ecf
SHA5121b73e9423e2b49ec4b20e4d1a92a38fa9b7f3f41cf6953d731e567ceb74273a6cc2edcd67ba6ef6fc2c65f448b331e4dec4bfbf1c2d8c8a00de89c02f224c25f
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Filesize
5KB
MD500331ed587a64a4cc575234129b06549
SHA19ed558bef0de881f47c41de92c89760349f67336
SHA256451f905236322ae1085481d5d983588d734255546c1a68071f161b9debb99ecf
SHA5121b73e9423e2b49ec4b20e4d1a92a38fa9b7f3f41cf6953d731e567ceb74273a6cc2edcd67ba6ef6fc2c65f448b331e4dec4bfbf1c2d8c8a00de89c02f224c25f
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Filesize
5KB
MD500331ed587a64a4cc575234129b06549
SHA19ed558bef0de881f47c41de92c89760349f67336
SHA256451f905236322ae1085481d5d983588d734255546c1a68071f161b9debb99ecf
SHA5121b73e9423e2b49ec4b20e4d1a92a38fa9b7f3f41cf6953d731e567ceb74273a6cc2edcd67ba6ef6fc2c65f448b331e4dec4bfbf1c2d8c8a00de89c02f224c25f
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Filesize
520KB
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Filesize
6.9MB
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Filesize
6.9MB
-
Filesize
280KB
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Filesize
256KB
-
Filesize
76KB
-
Filesize
76KB
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Filesize
4KB
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Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
76KB
-
Filesize
36KB
-
Filesize
4KB
-
Filesize
520KB
-
Filesize
304KB
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Filesize
6.9MB
-
Filesize
208KB
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Filesize
280KB
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Filesize
280KB
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Filesize
256KB
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Filesize
6.9MB