Analysis
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max time kernel
600s -
max time network
602s -
platform
windows10-2004_x64 -
resource
win10v2004-20230621-en -
resource tags
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submitted
03-07-2023 05:51
General
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Target
2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb.exe
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Size
235KB
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MD5
0f281d2506515a64082d6e774573afb7
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SHA1
8949f27465913bf475fceb5796b205429083df58
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SHA256
2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb
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SHA512
f4ddb22c7dec04ca862d3df88e285025e02c185dbb2c061e9d0092ba3e8e8e083ca55612aae6b2d5792038729c55c0eaf193048991c0b06c8639a52017102622
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SSDEEP
3072:tkq8P0CtmR0TW3gu8/j/ZCTFPBMBbfYjQF5MLyfLTJ1:GPJTOgr/0XgjYY5gULT
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\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 (474) 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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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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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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Program crash 1 IoCs
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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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 registry class 1 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 42 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\2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb.exe"C:\Users\Admin\AppData\Local\Temp\2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb.exe"1⤵
- Modifies extensions of user files
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb.exe"C:\Users\Admin\AppData\Local\Temp\2288a0c896757647538a7dab5e0c980b70b173ed36c9e6206f6701dfd4112cfb.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1384 -s 2163⤵
- Program crash
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1384 -ip 13841⤵
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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⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.2MB
MD55b94982600fc53f246252fb324bdaddf
SHA1d9042794d938ed26c6a8b81b1484f42393c6c1f7
SHA25601a7540dc1b3a663e2031687c8ee04e9a1053535ebde8d1589d66036e69c0861
SHA512c2085e4403447f55bdd0ae69e3f3db79146e73473d8d392c835afb8cc6e388acbeb87d33b38133ccd3533432ef962a38b74efaca04056d06274c27a0691e3c15
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Filesize
5KB
MD5fa409036dce5b3c8bb4253e46f004418
SHA19f3cc572e732de138fcc9749bfecb5f5b0219913
SHA25685f8a1b6eb4c6c5bc66eaae60edfd0a702f02d86b54bc930420209e47691ba03
SHA51299a84803066edc9d107973ce2eb082054309d03d0cc14a7e4e54bf05d9648d932253d36ed18347b1073d8230ff4cb86764ba87358046f54515a8b738d3a214c1
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Filesize
5KB
MD5fa409036dce5b3c8bb4253e46f004418
SHA19f3cc572e732de138fcc9749bfecb5f5b0219913
SHA25685f8a1b6eb4c6c5bc66eaae60edfd0a702f02d86b54bc930420209e47691ba03
SHA51299a84803066edc9d107973ce2eb082054309d03d0cc14a7e4e54bf05d9648d932253d36ed18347b1073d8230ff4cb86764ba87358046f54515a8b738d3a214c1
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Filesize
5KB
MD5fa409036dce5b3c8bb4253e46f004418
SHA19f3cc572e732de138fcc9749bfecb5f5b0219913
SHA25685f8a1b6eb4c6c5bc66eaae60edfd0a702f02d86b54bc930420209e47691ba03
SHA51299a84803066edc9d107973ce2eb082054309d03d0cc14a7e4e54bf05d9648d932253d36ed18347b1073d8230ff4cb86764ba87358046f54515a8b738d3a214c1
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Filesize
5KB
MD5fa409036dce5b3c8bb4253e46f004418
SHA19f3cc572e732de138fcc9749bfecb5f5b0219913
SHA25685f8a1b6eb4c6c5bc66eaae60edfd0a702f02d86b54bc930420209e47691ba03
SHA51299a84803066edc9d107973ce2eb082054309d03d0cc14a7e4e54bf05d9648d932253d36ed18347b1073d8230ff4cb86764ba87358046f54515a8b738d3a214c1
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Filesize
5KB
MD5fa409036dce5b3c8bb4253e46f004418
SHA19f3cc572e732de138fcc9749bfecb5f5b0219913
SHA25685f8a1b6eb4c6c5bc66eaae60edfd0a702f02d86b54bc930420209e47691ba03
SHA51299a84803066edc9d107973ce2eb082054309d03d0cc14a7e4e54bf05d9648d932253d36ed18347b1073d8230ff4cb86764ba87358046f54515a8b738d3a214c1
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
60KB
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Filesize
2.6MB