Analysis
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max time kernel
150s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
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submitted
22-11-2023 11:37
General
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Target
518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe
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Size
281KB
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MD5
2809e15a3a54484e042fe65fffd17409
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SHA1
4a8f0331abaf8f629b3c8220f0d55339cfa30223
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SHA256
518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c
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SHA512
698e16fd67861377e2ccaace4d0e1a619a8b7c68e8aefc4090e9d1cbbcdfb8d8aede76f9e63f81479f5a035e8008699a4d7175da6248e6e49eb7c81b3dba30c3
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SSDEEP
3072:D5IwIMZKkczttW5ivhjqKO1I9Goh6F4mAqeormMkpCWlunhNGA5yjszVIEe9:NIMsztZZ+KQqGo5QfmLpCoun6W
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 (458) 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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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\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"1⤵
- 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\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"C:\Users\Admin\AppData\Local\Temp\518544e56e8ccee401ffa1b0a01a10ce23e49ec21ec441c6c7c3951b01c1b19c.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 4603⤵
- 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\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\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\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 4776 -ip 47761⤵
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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 v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
3.2MB
MD5d77ac7d352d48c503ea9935f1771d1c4
SHA128409d444f1038a21e79eac0676b42051736ae74
SHA256f51134777fb8e2f64d81181ddca8904cb88237f6f7bd5ccf6691497410f8fb4c
SHA512b799055ba3705800dd6b6082ffeab29478f4cb8bfa2999a54b1550e98586634148eb65d89a27b5553292cf3311f9d2c6b54569b9721520ae6e843a5e49e5f935
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Filesize
5KB
MD5c364b2569467ef09d916dbe6f7748841
SHA16cf7909e6122c14567ee58b274960d0b4f2636d8
SHA256a988a332ee60bb514bec9728519a937a1dd400a318e11de54c29f5f13c644bd2
SHA5121eb8431d872ab5ce1c236b7c47a9c39974a5aeaebd2afdf01c9d7b9a98f5458d14586aaf9077ed8f6f84f50e9e8921bf7c800abc0d7cf803e6776b5280e5d0e6
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Filesize
5KB
MD5c364b2569467ef09d916dbe6f7748841
SHA16cf7909e6122c14567ee58b274960d0b4f2636d8
SHA256a988a332ee60bb514bec9728519a937a1dd400a318e11de54c29f5f13c644bd2
SHA5121eb8431d872ab5ce1c236b7c47a9c39974a5aeaebd2afdf01c9d7b9a98f5458d14586aaf9077ed8f6f84f50e9e8921bf7c800abc0d7cf803e6776b5280e5d0e6
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Filesize
5KB
MD5c364b2569467ef09d916dbe6f7748841
SHA16cf7909e6122c14567ee58b274960d0b4f2636d8
SHA256a988a332ee60bb514bec9728519a937a1dd400a318e11de54c29f5f13c644bd2
SHA5121eb8431d872ab5ce1c236b7c47a9c39974a5aeaebd2afdf01c9d7b9a98f5458d14586aaf9077ed8f6f84f50e9e8921bf7c800abc0d7cf803e6776b5280e5d0e6
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Filesize
5KB
MD5c364b2569467ef09d916dbe6f7748841
SHA16cf7909e6122c14567ee58b274960d0b4f2636d8
SHA256a988a332ee60bb514bec9728519a937a1dd400a318e11de54c29f5f13c644bd2
SHA5121eb8431d872ab5ce1c236b7c47a9c39974a5aeaebd2afdf01c9d7b9a98f5458d14586aaf9077ed8f6f84f50e9e8921bf7c800abc0d7cf803e6776b5280e5d0e6
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Filesize
5KB
MD5c364b2569467ef09d916dbe6f7748841
SHA16cf7909e6122c14567ee58b274960d0b4f2636d8
SHA256a988a332ee60bb514bec9728519a937a1dd400a318e11de54c29f5f13c644bd2
SHA5121eb8431d872ab5ce1c236b7c47a9c39974a5aeaebd2afdf01c9d7b9a98f5458d14586aaf9077ed8f6f84f50e9e8921bf7c800abc0d7cf803e6776b5280e5d0e6
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
84KB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
5.2MB
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Filesize
84KB
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Filesize
60KB
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Filesize
5.2MB
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Filesize
84KB
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Filesize
60KB
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Filesize
5.2MB