crypvault | 2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7

Analysis

max time kernel
100s
max time network
25s
platform
windows7_x64
resource
win7v20210410
submitted
26-04-2021 15:07

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General

Target

2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
Size

464KB
MD5

fe7bc3cd6512f31d48a58caf3e558fee
SHA1

5b2e6e541ea6f47e369291396a5d91564ece2eb8
SHA256

2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7
SHA512

26e5d85f46afcf1434ccce85836014a5adf11728a609e79a8d19d2e6da6f84588eb4b650b5b5184b66bd255cb8d4b0a19bbfad65dc7f058928c7e5bc88f1730b

Score

10^/10

crypvault pony discovery evasion ransomware rat spyware stealer upx

Malware Config

Signatures

CrypVault
Ransomware family which makes encrypted files look like they have been quarantined by AV.
ransomware crypvault
Pony,Fareit
Pony is a Remote Access Trojan application that steals information.
rat spyware stealer pony

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	612	1796	cmd.exe	41

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

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
2060	bcdedit.exe
2072	bcdedit.exe

Executes dropped EXE 3 IoCs

pid	Process
1840	7za.exe
1552	6D00D3EF97.exe
1700	6D00D3EF97.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1700-79-0x0000000000400000-0x0000000000E28000-memory.dmp	upx
behavioral1/memory/1700-84-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta	6D00D3EF97.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VAULT.hta	6D00D3EF97.exe

Loads dropped DLL 5 IoCs

pid	Process
1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
1552	6D00D3EF97.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1552 set thread context of 1700	1552	6D00D3EF97.exe	34

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

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

System Information Discovery
T1082
Office loads VBA resources, possible macro or embedded object present

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
1840	vssadmin.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1656	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1552	6D00D3EF97.exe
1700	6D00D3EF97.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeImpersonatePrivilege	1700	6D00D3EF97.exe
Token: SeTcbPrivilege	1700	6D00D3EF97.exe
Token: SeChangeNotifyPrivilege	1700	6D00D3EF97.exe
Token: SeCreateTokenPrivilege	1700	6D00D3EF97.exe
Token: SeBackupPrivilege	1700	6D00D3EF97.exe
Token: SeRestorePrivilege	1700	6D00D3EF97.exe
Token: SeIncreaseQuotaPrivilege	1700	6D00D3EF97.exe
Token: SeAssignPrimaryTokenPrivilege	1700	6D00D3EF97.exe
Token: SeIncreaseQuotaPrivilege	384	WMIC.exe
Token: SeSecurityPrivilege	384	WMIC.exe
Token: SeTakeOwnershipPrivilege	384	WMIC.exe
Token: SeLoadDriverPrivilege	384	WMIC.exe
Token: SeSystemProfilePrivilege	384	WMIC.exe
Token: SeSystemtimePrivilege	384	WMIC.exe
Token: SeProfSingleProcessPrivilege	384	WMIC.exe
Token: SeIncBasePriorityPrivilege	384	WMIC.exe
Token: SeCreatePagefilePrivilege	384	WMIC.exe
Token: SeBackupPrivilege	384	WMIC.exe
Token: SeRestorePrivilege	384	WMIC.exe
Token: SeShutdownPrivilege	384	WMIC.exe
Token: SeDebugPrivilege	384	WMIC.exe
Token: SeSystemEnvironmentPrivilege	384	WMIC.exe
Token: SeRemoteShutdownPrivilege	384	WMIC.exe
Token: SeUndockPrivilege	384	WMIC.exe
Token: SeManageVolumePrivilege	384	WMIC.exe
Token: 33	384	WMIC.exe
Token: 34	384	WMIC.exe
Token: 35	384	WMIC.exe
Token: SeIncreaseQuotaPrivilege	384	WMIC.exe
Token: SeSecurityPrivilege	384	WMIC.exe
Token: SeTakeOwnershipPrivilege	384	WMIC.exe
Token: SeLoadDriverPrivilege	384	WMIC.exe
Token: SeSystemProfilePrivilege	384	WMIC.exe
Token: SeSystemtimePrivilege	384	WMIC.exe
Token: SeProfSingleProcessPrivilege	384	WMIC.exe
Token: SeIncBasePriorityPrivilege	384	WMIC.exe
Token: SeCreatePagefilePrivilege	384	WMIC.exe
Token: SeBackupPrivilege	384	WMIC.exe
Token: SeRestorePrivilege	384	WMIC.exe
Token: SeShutdownPrivilege	384	WMIC.exe
Token: SeDebugPrivilege	384	WMIC.exe
Token: SeSystemEnvironmentPrivilege	384	WMIC.exe
Token: SeRemoteShutdownPrivilege	384	WMIC.exe
Token: SeUndockPrivilege	384	WMIC.exe
Token: SeManageVolumePrivilege	384	WMIC.exe
Token: 33	384	WMIC.exe
Token: 34	384	WMIC.exe
Token: 35	384	WMIC.exe
Token: SeBackupPrivilege	1972	vssvc.exe
Token: SeRestorePrivilege	1972	vssvc.exe
Token: SeAuditPrivilege	1972	vssvc.exe
Token: SeImpersonatePrivilege	1700	6D00D3EF97.exe
Token: SeTcbPrivilege	1700	6D00D3EF97.exe
Token: SeChangeNotifyPrivilege	1700	6D00D3EF97.exe
Token: SeCreateTokenPrivilege	1700	6D00D3EF97.exe
Token: SeBackupPrivilege	1700	6D00D3EF97.exe
Token: SeRestorePrivilege	1700	6D00D3EF97.exe
Token: SeIncreaseQuotaPrivilege	1700	6D00D3EF97.exe
Token: SeAssignPrimaryTokenPrivilege	1700	6D00D3EF97.exe
Token: SeImpersonatePrivilege	1700	6D00D3EF97.exe
Token: SeTcbPrivilege	1700	6D00D3EF97.exe
Token: SeChangeNotifyPrivilege	1700	6D00D3EF97.exe
Token: SeCreateTokenPrivilege	1700	6D00D3EF97.exe
Token: SeBackupPrivilege	1700	6D00D3EF97.exe

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
1552	6D00D3EF97.exe
1552	6D00D3EF97.exe
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE
1656	WINWORD.EXE

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 1928	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	26
PID 1116 wrote to memory of 1928	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	26
PID 1116 wrote to memory of 1928	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	26
PID 1116 wrote to memory of 1928	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	26
PID 1116 wrote to memory of 1736	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	28
PID 1116 wrote to memory of 1736	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	28
PID 1116 wrote to memory of 1736	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	28
PID 1116 wrote to memory of 1736	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	28
PID 1116 wrote to memory of 1840	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	30
PID 1116 wrote to memory of 1840	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	30
PID 1116 wrote to memory of 1840	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	30
PID 1116 wrote to memory of 1840	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	30
PID 1116 wrote to memory of 1656	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	32
PID 1116 wrote to memory of 1656	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	32
PID 1116 wrote to memory of 1656	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	32
PID 1116 wrote to memory of 1656	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	32
PID 1116 wrote to memory of 1552	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	33
PID 1116 wrote to memory of 1552	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	33
PID 1116 wrote to memory of 1552	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	33
PID 1116 wrote to memory of 1552	1116	2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe	33
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1552 wrote to memory of 1700	1552	6D00D3EF97.exe	34
PID 1700 wrote to memory of 1168	1700	6D00D3EF97.exe	35
PID 1700 wrote to memory of 1168	1700	6D00D3EF97.exe	35
PID 1700 wrote to memory of 1168	1700	6D00D3EF97.exe	35
PID 1700 wrote to memory of 1168	1700	6D00D3EF97.exe	35
PID 1700 wrote to memory of 384	1700	6D00D3EF97.exe	36
PID 1700 wrote to memory of 384	1700	6D00D3EF97.exe	36
PID 1700 wrote to memory of 384	1700	6D00D3EF97.exe	36
PID 1700 wrote to memory of 384	1700	6D00D3EF97.exe	36
PID 612 wrote to memory of 1840	612	cmd.exe	45
PID 612 wrote to memory of 1840	612	cmd.exe	45
PID 612 wrote to memory of 1840	612	cmd.exe	45
PID 612 wrote to memory of 2060	612	cmd.exe	50
PID 612 wrote to memory of 2060	612	cmd.exe	50
PID 612 wrote to memory of 2060	612	cmd.exe	50
PID 612 wrote to memory of 2072	612	cmd.exe	51
PID 612 wrote to memory of 2072	612	cmd.exe	51
PID 612 wrote to memory of 2072	612	cmd.exe	51
PID 1656 wrote to memory of 2104	1656	WINWORD.EXE	52
PID 1656 wrote to memory of 2104	1656	WINWORD.EXE	52
PID 1656 wrote to memory of 2104	1656	WINWORD.EXE	52
PID 1656 wrote to memory of 2104	1656	WINWORD.EXE	52

C:\Users\Admin\AppData\Local\Temp\2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe
"C:\Users\Admin\AppData\Local\Temp\2fdb9fa88fa2082583d32914c3863521604dd32218c26a0f35e0141ba35408b7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo 75BB576D00D3EF97
  2⤵
  PID:1928
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ren "C:\Users\Admin\AppData\Local\Temp\75BB57" 7za.exe
  2⤵
  PID:1736
- C:\Users\Admin\AppData\Local\Temp\7za.exe
  "C:\Users\Admin\AppData\Local\Temp\7za.exe" e "C:\Users\Admin\AppData\Local\Temp\6D00D3EF97" -y -p6D00D3EF97
  2⤵
  - Executes dropped EXE
  PID:1840
- C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
  "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.doc"
  2⤵
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1656
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:2104
- C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe
  "C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1552
- - C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe
    C:\Users\Admin\AppData\Local\Temp\6D00D3EF97.exe
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1700
  - - C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\VAULT.hta"
      4⤵
      Modifies Internet Explorer settings
      PID:1168
  - - C:\Windows\SysWOW64\wbem\WMIC.exe
      "C:\Windows\System32\wbem\WMIC.exe" process call create "cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures"
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:384

C:\Windows\system32\cmd.exe
cmd.exe /c vssadmin.exe delete shadows /all /quiet & bcdedit.exe /set {default} recoveryenabled no & bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:612
- C:\Windows\system32\vssadmin.exe
  vssadmin.exe delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:1840
- C:\Windows\system32\bcdedit.exe
  bcdedit.exe /set {default} recoveryenabled no
  2⤵
  - Modifies boot configuration data using bcdedit
  PID:2060
- C:\Windows\system32\bcdedit.exe
  bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
  2⤵
  - Modifies boot configuration data using bcdedit
  PID:2072

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/1116-60-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/1552-83-0x0000000000360000-0x0000000000365000-memory.dmp

Filesize
20KB

Download
memory/1656-76-0x0000000070511000-0x0000000070513000-memory.dmp

Filesize
8KB

Download
memory/1656-75-0x0000000072D71000-0x0000000072D74000-memory.dmp

Filesize
12KB

Download
memory/1656-85-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1656-96-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1700-79-0x0000000000400000-0x0000000000E28000-memory.dmp

Filesize
10.2MB

Download
memory/1700-84-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2104-95-0x000007FEFC301000-0x000007FEFC303000-memory.dmp

Filesize
8KB

Download