d62702dc15f7812688bd00b483e2d3b54c44593c76ac7118ee85560a7bd3361e

Analysis

max time kernel
138s
max time network
148s
platform
windows7_x64
resource
win7v20210410
submitted
07/05/2021, 03:19

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General

Target

compile by raminhk.exe
Size

6.7MB
MD5

4ce7c1e483beb642f43715a47b96e32b
SHA1

47e02b2248dec9ff925d423374773a585742d0ae
SHA256

d62702dc15f7812688bd00b483e2d3b54c44593c76ac7118ee85560a7bd3361e
SHA512

122def960135c894e28c9f2d8dfb461e74e22efd76b31673b9462a90484eaae9b47d88a7c8f5519f10762960a669cb87ece43315dbf730a0e06e572f03aea3f1

Score

9^/10

evasion persistence ransomware vmprotect

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 boot configuration data using bcdedit 1 TTPs 1 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
556	bcdedit.exe

Disables Task Manager via registry modification
evasion

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral1/memory/1096-60-0x0000000000400000-0x0000000001462000-memory.dmp	vmprotect

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Security Update = "C:\\Users\\Admin\\WindowsSecurityUpdate.exe /onboot"	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Infected = "b2008a344070ce59368f8873d5fa363ece189c2fe38a3fc84b342d7c4531f299b2008a344070ce59368f8873d5fa363e"	compile by raminhk.exe

Drops desktop.ini file(s) 26 IoCs

description	ioc	Process
File created	C:\Users\Admin\Desktop\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Saved Games\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Searches\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Desktop\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Videos\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Downloads\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Links\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Pictures\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Libraries\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Music\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Music\Sample Music\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Music\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Contacts\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Documents\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Favorites\Links\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Favorites\Links for United States\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Favorites\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Recorded TV\Sample Media\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Videos\Sample Videos\desktop.ini	compile by raminhk.exe
File created	C:\Users\Admin\Videos\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Documents\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Downloads\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Pictures\desktop.ini	compile by raminhk.exe
File created	C:\Users\Public\Recorded TV\desktop.ini	compile by raminhk.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	icanhazip.com
4	icanhazip.com

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1800	tasklist.exe

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000051618adbbbd0f84eb34ff59fe7045e8f00000000020000000000106600000001000020000000e5ed97f9f264b83648e314f1b9043ed6555ec73350ac6398cfd2463b68e78ba1000000000e8000000002000020000000d6b22d7b793ab74e46edc5ca68077ba891988183edb83e7f30a6e4e505af39392000000022ffb95687d0abce9e63005400cd1b72220af6ea9887cb050d066239cbd0f6bc400000005b3353a49c4ac9833a9fe8159b4e1f9b465a66d08b8aeddbce6db0368e8b8cddd4f1dd388bc2c2dfb5ecf71a65ca287666ef8ad64d82d4fdde52e9c779e7b97e	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A177FC81-AEE2-11EB-A1A8-4E3F7CC12DEF} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80e50377ef42d701	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry

T1112

pid	Process
1080	reg.exe
1700	reg.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1096	compile by raminhk.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	tasklist.exe
Token: SeIncreaseQuotaPrivilege	268	WMIC.exe
Token: SeSecurityPrivilege	268	WMIC.exe
Token: SeTakeOwnershipPrivilege	268	WMIC.exe
Token: SeLoadDriverPrivilege	268	WMIC.exe
Token: SeSystemProfilePrivilege	268	WMIC.exe
Token: SeSystemtimePrivilege	268	WMIC.exe
Token: SeProfSingleProcessPrivilege	268	WMIC.exe
Token: SeIncBasePriorityPrivilege	268	WMIC.exe
Token: SeCreatePagefilePrivilege	268	WMIC.exe
Token: SeBackupPrivilege	268	WMIC.exe
Token: SeRestorePrivilege	268	WMIC.exe
Token: SeShutdownPrivilege	268	WMIC.exe
Token: SeDebugPrivilege	268	WMIC.exe
Token: SeSystemEnvironmentPrivilege	268	WMIC.exe
Token: SeRemoteShutdownPrivilege	268	WMIC.exe
Token: SeUndockPrivilege	268	WMIC.exe
Token: SeManageVolumePrivilege	268	WMIC.exe
Token: 33	268	WMIC.exe
Token: 34	268	WMIC.exe
Token: 35	268	WMIC.exe
Token: SeIncreaseQuotaPrivilege	268	WMIC.exe
Token: SeSecurityPrivilege	268	WMIC.exe
Token: SeTakeOwnershipPrivilege	268	WMIC.exe
Token: SeLoadDriverPrivilege	268	WMIC.exe
Token: SeSystemProfilePrivilege	268	WMIC.exe
Token: SeSystemtimePrivilege	268	WMIC.exe
Token: SeProfSingleProcessPrivilege	268	WMIC.exe
Token: SeIncBasePriorityPrivilege	268	WMIC.exe
Token: SeCreatePagefilePrivilege	268	WMIC.exe
Token: SeBackupPrivilege	268	WMIC.exe
Token: SeRestorePrivilege	268	WMIC.exe
Token: SeShutdownPrivilege	268	WMIC.exe
Token: SeDebugPrivilege	268	WMIC.exe
Token: SeSystemEnvironmentPrivilege	268	WMIC.exe
Token: SeRemoteShutdownPrivilege	268	WMIC.exe
Token: SeUndockPrivilege	268	WMIC.exe
Token: SeManageVolumePrivilege	268	WMIC.exe
Token: 33	268	WMIC.exe
Token: 34	268	WMIC.exe
Token: 35	268	WMIC.exe
Token: SeBackupPrivilege	1052	vssvc.exe
Token: SeRestorePrivilege	1052	vssvc.exe
Token: SeAuditPrivilege	1052	vssvc.exe
Token: 33	2044	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2044	AUDIODG.EXE
Token: 33	2044	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2044	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
300	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
300	iexplore.exe
300	iexplore.exe
672	IEXPLORE.EXE
672	IEXPLORE.EXE
672	IEXPLORE.EXE
672	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 1800	1096	compile by raminhk.exe	28
PID 1096 wrote to memory of 1800	1096	compile by raminhk.exe	28
PID 1096 wrote to memory of 1800	1096	compile by raminhk.exe	28
PID 1096 wrote to memory of 888	1096	compile by raminhk.exe	32
PID 1096 wrote to memory of 888	1096	compile by raminhk.exe	32
PID 1096 wrote to memory of 888	1096	compile by raminhk.exe	32
PID 888 wrote to memory of 752	888	cmd.exe	34
PID 888 wrote to memory of 752	888	cmd.exe	34
PID 888 wrote to memory of 752	888	cmd.exe	34
PID 888 wrote to memory of 268	888	cmd.exe	35
PID 888 wrote to memory of 268	888	cmd.exe	35
PID 888 wrote to memory of 268	888	cmd.exe	35
PID 1096 wrote to memory of 864	1096	compile by raminhk.exe	38
PID 1096 wrote to memory of 864	1096	compile by raminhk.exe	38
PID 1096 wrote to memory of 864	1096	compile by raminhk.exe	38
PID 864 wrote to memory of 556	864	cmd.exe	40
PID 864 wrote to memory of 556	864	cmd.exe	40
PID 864 wrote to memory of 556	864	cmd.exe	40
PID 1096 wrote to memory of 1728	1096	compile by raminhk.exe	41
PID 1096 wrote to memory of 1728	1096	compile by raminhk.exe	41
PID 1096 wrote to memory of 1728	1096	compile by raminhk.exe	41
PID 1728 wrote to memory of 1080	1728	cmd.exe	43
PID 1728 wrote to memory of 1080	1728	cmd.exe	43
PID 1728 wrote to memory of 1080	1728	cmd.exe	43
PID 1096 wrote to memory of 1616	1096	compile by raminhk.exe	44
PID 1096 wrote to memory of 1616	1096	compile by raminhk.exe	44
PID 1096 wrote to memory of 1616	1096	compile by raminhk.exe	44
PID 1616 wrote to memory of 1700	1616	cmd.exe	46
PID 1616 wrote to memory of 1700	1616	cmd.exe	46
PID 1616 wrote to memory of 1700	1616	cmd.exe	46
PID 300 wrote to memory of 672	300	iexplore.exe	50
PID 300 wrote to memory of 672	300	iexplore.exe	50
PID 300 wrote to memory of 672	300	iexplore.exe	50
PID 300 wrote to memory of 672	300	iexplore.exe	50

C:\Users\Admin\AppData\Local\Temp\compile by raminhk.exe
"C:\Users\Admin\AppData\Local\Temp\compile by raminhk.exe"
1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Windows\system32\tasklist.exe
  tasklist /FO csv
  2⤵
  - Enumerates processes with tasklist
  - Suspicious use of AdjustPrivilegeToken
  PID:1800
- C:\Windows\system32\cmd.exe
  cmd /c vssadmin delete shadow /all /quiet & wmic shadowcopy delete & bcdedit /set {default} boostatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -q
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:888
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadow /all /quiet
    3⤵
    PID:752
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:268
- C:\Windows\system32\cmd.exe
  cmd /c bcdedit /set {default} recoveryenabled No cmd.exe /C bcdedit /set {default} bootstatuspolicy ignoreallfailures C:\Windows\System32\cmd.exe /C vssadmin.exe Delete Shadows /All Quiet
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\system32\bcdedit.exe
    bcdedit /set {default} recoveryenabled No
    3⤵
    - Modifies boot configuration data using bcdedit
    PID:556
- C:\Windows\system32\cmd.exe
  cmd /c REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\system32\reg.exe
    REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
    3⤵
    - Modifies registry key
    PID:1080
- C:\Windows\system32\cmd.exe
  cmd /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Windows Security Update" /t REG_SZ /d "C:\Users\Admin\WindowsSecurityUpdate.exe /onboot" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Windows\system32\reg.exe
    REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Windows Security Update" /t REG_SZ /d "C:\Users\Admin\WindowsSecurityUpdate.exe /onboot" /f
    3⤵
    - Adds Run key to start application
    - Modifies registry key
    PID:1700

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1052

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\GoNNaCry.html
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:300
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:300 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:672

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:960

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2f4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2044

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Process Discovery

T1057

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/960-74-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

Filesize
8KB

Download
memory/1096-60-0x0000000000400000-0x0000000001462000-memory.dmp

Filesize
16.4MB

Download
memory/1096-61-0x00000000776C0000-0x00000000776C2000-memory.dmp

Filesize
8KB

Download