7d9380fb533f6af97982464579db90dcffe42067d07d570a9857f4b0e5d37862

Analysis

max time kernel
151s
max time network
22s
platform
windows7_x64
resource
win7v20210408
submitted
04/05/2021, 09:05

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General

Target
5654EC48D1C85430A2E3BEE153EB9A60.exe
Size 803KB
Sample210504-s8mgdkfxmx
SHA256 7d9380fb533f6af97982464579db90dcffe42067d07d570a9857f4b0e5d37862
MD5 5654ec48d1c85430a2e3bee153eb9a60
SHA1 9cfef69fb81f389785902aa50240f6d866eedd28
SHA512 92d6cfadf80126cd10100ff8a9d8c9ab65f1a8317656e33f906363a612386c472b99f17fd6e45e8637b88981d31380ebec57925499d85722c1089eec9498214a
MD5 SHA1 SHA512

Score

9^/10

discovery ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2092	icacls.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1580	1736	WerFault.exe	24

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
2112	vssadmin.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1136	powershell.exe
1288	powershell.exe
1028	powershell.exe
1604	powershell.exe
696	powershell.exe
880	powershell.exe
1604	powershell.exe
880	powershell.exe
1136	powershell.exe
1288	powershell.exe
1028	powershell.exe
696	powershell.exe
1580	WerFault.exe
1580	WerFault.exe
1580	WerFault.exe
1580	WerFault.exe
1580	WerFault.exe
1580	WerFault.exe
584	powershell.exe
584	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1580	WerFault.exe

Suspicious use of AdjustPrivilegeToken 51 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	1288	powershell.exe
Token: SeDebugPrivilege	1028	powershell.exe
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	696	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeIncreaseQuotaPrivilege	880	powershell.exe
Token: SeSecurityPrivilege	880	powershell.exe
Token: SeTakeOwnershipPrivilege	880	powershell.exe
Token: SeLoadDriverPrivilege	880	powershell.exe
Token: SeSystemProfilePrivilege	880	powershell.exe
Token: SeSystemtimePrivilege	880	powershell.exe
Token: SeProfSingleProcessPrivilege	880	powershell.exe
Token: SeIncBasePriorityPrivilege	880	powershell.exe
Token: SeCreatePagefilePrivilege	880	powershell.exe
Token: SeBackupPrivilege	880	powershell.exe
Token: SeRestorePrivilege	880	powershell.exe
Token: SeShutdownPrivilege	880	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeSystemEnvironmentPrivilege	880	powershell.exe
Token: SeRemoteShutdownPrivilege	880	powershell.exe
Token: SeUndockPrivilege	880	powershell.exe
Token: SeManageVolumePrivilege	880	powershell.exe
Token: 33	880	powershell.exe
Token: 34	880	powershell.exe
Token: 35	880	powershell.exe
Token: SeIncreaseQuotaPrivilege	880	powershell.exe
Token: SeSecurityPrivilege	880	powershell.exe
Token: SeTakeOwnershipPrivilege	880	powershell.exe
Token: SeLoadDriverPrivilege	880	powershell.exe
Token: SeSystemProfilePrivilege	880	powershell.exe
Token: SeSystemtimePrivilege	880	powershell.exe
Token: SeProfSingleProcessPrivilege	880	powershell.exe
Token: SeIncBasePriorityPrivilege	880	powershell.exe
Token: SeCreatePagefilePrivilege	880	powershell.exe
Token: SeBackupPrivilege	880	powershell.exe
Token: SeRestorePrivilege	880	powershell.exe
Token: SeShutdownPrivilege	880	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeSystemEnvironmentPrivilege	880	powershell.exe
Token: SeRemoteShutdownPrivilege	880	powershell.exe
Token: SeUndockPrivilege	880	powershell.exe
Token: SeManageVolumePrivilege	880	powershell.exe
Token: 33	880	powershell.exe
Token: 34	880	powershell.exe
Token: 35	880	powershell.exe
Token: SeDebugPrivilege	1580	WerFault.exe
Token: SeBackupPrivilege	2192	vssvc.exe
Token: SeRestorePrivilege	2192	vssvc.exe
Token: SeAuditPrivilege	2192	vssvc.exe
Token: SeDebugPrivilege	584	powershell.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1288	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	29
PID 1736 wrote to memory of 1288	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	29
PID 1736 wrote to memory of 1288	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	29
PID 1736 wrote to memory of 1136	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	31
PID 1736 wrote to memory of 1136	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	31
PID 1736 wrote to memory of 1136	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	31
PID 1736 wrote to memory of 584	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	33
PID 1736 wrote to memory of 584	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	33
PID 1736 wrote to memory of 584	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	33
PID 1736 wrote to memory of 1028	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	34
PID 1736 wrote to memory of 1028	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	34
PID 1736 wrote to memory of 1028	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	34
PID 1736 wrote to memory of 1604	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	36
PID 1736 wrote to memory of 1604	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	36
PID 1736 wrote to memory of 1604	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	36
PID 1736 wrote to memory of 696	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	39
PID 1736 wrote to memory of 696	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	39
PID 1736 wrote to memory of 696	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	39
PID 1736 wrote to memory of 880	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	43
PID 1736 wrote to memory of 880	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	43
PID 1736 wrote to memory of 880	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	43
PID 1736 wrote to memory of 1580	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	41
PID 1736 wrote to memory of 1580	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	41
PID 1736 wrote to memory of 1580	1736	5654EC48D1C85430A2E3BEE153EB9A60.exe	41
PID 1136 wrote to memory of 2092	1136	powershell.exe	44
PID 1136 wrote to memory of 2092	1136	powershell.exe	44
PID 1136 wrote to memory of 2092	1136	powershell.exe	44
PID 1288 wrote to memory of 2112	1288	powershell.exe	45
PID 1288 wrote to memory of 2112	1288	powershell.exe	45
PID 1288 wrote to memory of 2112	1288	powershell.exe	45

C:\Users\Admin\AppData\Local\Temp\5654EC48D1C85430A2E3BEE153EB9A60.exe
"C:\Users\Admin\AppData\Local\Temp\5654EC48D1C85430A2E3BEE153EB9A60.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" /c vssadmin.exe delete shadows /all /quiet
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\system32\vssadmin.exe
    "C:\Windows\system32\vssadmin.exe" delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:2112
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" /c icacls "C:\*" /grant Everyone:F /T /C /Q
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1136
- - C:\Windows\system32\icacls.exe
    "C:\Windows\system32\icacls.exe" C:\* /grant Everyone:F /T /C /Q
    3⤵
    - Modifies file permissions
    PID:2092
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" DELETE SYSTEMSTATEBACKUP
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:584
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" DELETE SYSTEMSTATEBACKUP -deleteOldest
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1028
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" DELETE SYSTEMSTATEBACKUP -keepVersions:0
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1604
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -EnableControlledFolderAccess Disabled
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:696
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1736 -s 952
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1580
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection google.com
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:880

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/584-161-0x000000001AAB0000-0x000000001AAB2000-memory.dmp

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memory/584-170-0x000000001AAB4000-0x000000001AAB6000-memory.dmp

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memory/696-167-0x000000001AC64000-0x000000001AC66000-memory.dmp

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memory/696-166-0x000000001AC60000-0x000000001AC62000-memory.dmp

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memory/880-115-0x000000001AA40000-0x000000001AA41000-memory.dmp

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memory/880-168-0x000000001AAE4000-0x000000001AAE6000-memory.dmp

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memory/880-165-0x000000001AAE0000-0x000000001AAE2000-memory.dmp

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memory/1028-163-0x000000001AB90000-0x000000001AB92000-memory.dmp

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memory/1028-164-0x000000001AB94000-0x000000001AB96000-memory.dmp

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memory/1136-73-0x0000000001F20000-0x0000000001F21000-memory.dmp

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memory/1136-75-0x000000001AE70000-0x000000001AE71000-memory.dmp

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memory/1136-158-0x000000001ADF4000-0x000000001ADF6000-memory.dmp

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memory/1136-98-0x0000000002450000-0x0000000002451000-memory.dmp

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memory/1136-84-0x000000001ADF0000-0x000000001ADF2000-memory.dmp

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memory/1288-70-0x000007FEFBAA1000-0x000007FEFBAA3000-memory.dmp

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memory/1288-160-0x000000001AC14000-0x000000001AC16000-memory.dmp

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memory/1288-159-0x000000001AC10000-0x000000001AC12000-memory.dmp

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memory/1580-169-0x00000000002B0000-0x00000000002B1000-memory.dmp

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memory/1604-123-0x000000001B120000-0x000000001B121000-memory.dmp

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memory/1604-118-0x000000001B070000-0x000000001B071000-memory.dmp

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memory/1604-107-0x000000001A760000-0x000000001A761000-memory.dmp

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memory/1604-157-0x000000001A920000-0x000000001A922000-memory.dmp

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memory/1604-137-0x000000001A900000-0x000000001A901000-memory.dmp

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memory/1604-162-0x000000001A924000-0x000000001A926000-memory.dmp

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memory/1604-138-0x000000001A910000-0x000000001A911000-memory.dmp

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memory/1736-65-0x000000001AEE0000-0x000000001AEE2000-memory.dmp

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memory/1736-60-0x00000000003F0000-0x00000000003F1000-memory.dmp

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memory/1736-64-0x0000000000540000-0x0000000000541000-memory.dmp

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memory/1736-63-0x000000001A780000-0x000000001A83E000-memory.dmp

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memory/1736-62-0x00000000003E0000-0x00000000003E1000-memory.dmp

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