2353ca7bfff8ffaaced210c1a51fc804058677b0e5f15ba5fe0b157676cee4b6

Analysis

max time kernel
106s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2022, 22:33

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General

Target

2353ca7bfff8ffaaced210c1a51fc804058677b0e5f15ba5fe0b157676cee4b6.dll
Size

128KB
MD5

57e216dd583d1e0bd994370d9cc06add
SHA1

03bb0870d94181ea3719b32838618dae3d391565
SHA256

2353ca7bfff8ffaaced210c1a51fc804058677b0e5f15ba5fe0b157676cee4b6
SHA512

3b3ae56cafd9eda3c73c3b455b274d5229c5a97f19aeb816b1efa49d7cca2d358e62c1bc1d6cc1379a62dca49c039704ec031373a77c745898d48cc41a482c58
SSDEEP

3072:D9DXmroY9wjVpDFZ/ok8YwiLveB+Qhh04dOQM:DtqsN/vIyWgQh/

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3896	SC4O823
3728	kaoqymvcsywrabck.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	SC4O823

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
320	2844	WerFault.exe	87
5088	4060	WerFault.exe	99

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30989855"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{082C2749-4A13-11ED-A0EE-E6C35CACCF0B} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3702830171"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989855"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3902831471"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989855"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3708924958"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30989855"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3702830171"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372333087"	IEXPLORE.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
672	Process not Found

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3896	SC4O823
Token: SeDebugPrivilege	3896	SC4O823
Token: SeSecurityPrivilege	3728	kaoqymvcsywrabck.exe
Token: SeLoadDriverPrivilege	3728	kaoqymvcsywrabck.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4504	IEXPLORE.EXE
4504	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4504	IEXPLORE.EXE
4504	IEXPLORE.EXE
2780	IEXPLORE.EXE
2780	IEXPLORE.EXE
2780	IEXPLORE.EXE
2780	IEXPLORE.EXE
4504	IEXPLORE.EXE
4504	IEXPLORE.EXE
3592	IEXPLORE.EXE
3592	IEXPLORE.EXE
3592	IEXPLORE.EXE
3592	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 1580 wrote to memory of 2640	1580	rundll32.exe	84
PID 1580 wrote to memory of 2640	1580	rundll32.exe	84
PID 1580 wrote to memory of 2640	1580	rundll32.exe	84
PID 2640 wrote to memory of 3896	2640	rundll32.exe	86
PID 2640 wrote to memory of 3896	2640	rundll32.exe	86
PID 2640 wrote to memory of 3896	2640	rundll32.exe	86
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 2844	3896	SC4O823	87
PID 3896 wrote to memory of 5112	3896	SC4O823	96
PID 3896 wrote to memory of 5112	3896	SC4O823	96
PID 3896 wrote to memory of 5112	3896	SC4O823	96
PID 5112 wrote to memory of 4504	5112	iexplore.exe	97
PID 5112 wrote to memory of 4504	5112	iexplore.exe	97
PID 4504 wrote to memory of 2780	4504	IEXPLORE.EXE	98
PID 4504 wrote to memory of 2780	4504	IEXPLORE.EXE	98
PID 4504 wrote to memory of 2780	4504	IEXPLORE.EXE	98
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4060	3896	SC4O823	99
PID 3896 wrote to memory of 4296	3896	SC4O823	103
PID 3896 wrote to memory of 4296	3896	SC4O823	103
PID 3896 wrote to memory of 4296	3896	SC4O823	103
PID 4296 wrote to memory of 3456	4296	iexplore.exe	104
PID 4296 wrote to memory of 3456	4296	iexplore.exe	104
PID 4504 wrote to memory of 3592	4504	IEXPLORE.EXE	105
PID 4504 wrote to memory of 3592	4504	IEXPLORE.EXE	105
PID 4504 wrote to memory of 3592	4504	IEXPLORE.EXE	105
PID 3896 wrote to memory of 3728	3896	SC4O823	106
PID 3896 wrote to memory of 3728	3896	SC4O823	106
PID 3896 wrote to memory of 3728	3896	SC4O823	106

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2353ca7bfff8ffaaced210c1a51fc804058677b0e5f15ba5fe0b157676cee4b6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1580
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2353ca7bfff8ffaaced210c1a51fc804058677b0e5f15ba5fe0b157676cee4b6.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Users\Admin\AppData\Local\Temp\SC4O823
    "SC4O823"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3896
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      PID:2844
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 204
        5⤵
        Program crash
        
        PID:320
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:5112
    - - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4504
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4504 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2780
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4504 CREDAT:17416 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3592
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      PID:4060
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 204
        5⤵
        Program crash
        
        PID:5088
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4296
    - - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        5⤵
        Modifies Internet Explorer settings
        
        PID:3456
  - - C:\Users\Admin\AppData\Local\Temp\kaoqymvcsywrabck.exe
      "C:\Users\Admin\AppData\Local\Temp\kaoqymvcsywrabck.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:3728

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2844 -ip 2844
1⤵
PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4060 -ip 4060
1⤵
PID:5104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
957d711ef13aae49d723c4d2b1d4fa37

SHA1
aa818a5cfb5ce97987c05c8f20866cbbafb4bf93

SHA256
43184ac9a857febd19b97a04797528a7de0c15744ae3d540e23cc4b5f1d2641b

SHA512
f5c8fb180bba40d0755c909349bb960be5b8242de651237b9c2368d74accbf845f3cad131ff9b80f71745353dd11b53ddda7fd5cb928a2f543be217b9e975030

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
434B

MD5
dec92f67e96fe44831ac006946a1eb57

SHA1
0de28e384151facfe6c40c3c4c862406d2446274

SHA256
f7b70553f9cdd9808e443ac9e0b81d57c6353dacec531192ad605cc136fd6eac

SHA512
54393007a40c4515c1e791439022e61135d6b9856efbc650cdb7f2495f9e1de6ddb3f38fa45e5e2d46b3004bbf9fd1483442bbbd5f4d065677851f8923a6ef29

Download Submit
C:\Users\Admin\AppData\Local\Temp\SC4O823

Filesize
94KB

MD5
2c1f8a0fa5ea49ef80bb7f6cdcdd946f

SHA1
29e1a5bb66437404e04bb13b2f77b7876ab794cf

SHA256
1a21cfd3103820715d2c6b13282a4002f08a0e56b034bce24de1726185ef73b4

SHA512
053b48b147495c576f2f6ce8add509613949056355d6518cf345ad4e8959690e194f0a79b9eb42fc78a57a5d8bd9b45913202be635a762a02f939a83b8a5213b

Download Submit
C:\Users\Admin\AppData\Local\Temp\SC4O823

Filesize
94KB

MD5
2c1f8a0fa5ea49ef80bb7f6cdcdd946f

SHA1
29e1a5bb66437404e04bb13b2f77b7876ab794cf

SHA256
1a21cfd3103820715d2c6b13282a4002f08a0e56b034bce24de1726185ef73b4

SHA512
053b48b147495c576f2f6ce8add509613949056355d6518cf345ad4e8959690e194f0a79b9eb42fc78a57a5d8bd9b45913202be635a762a02f939a83b8a5213b

Download Submit
C:\Users\Admin\AppData\Local\Temp\kaoqymvcsywrabck.exe

Filesize
94KB

MD5
2c1f8a0fa5ea49ef80bb7f6cdcdd946f

SHA1
29e1a5bb66437404e04bb13b2f77b7876ab794cf

SHA256
1a21cfd3103820715d2c6b13282a4002f08a0e56b034bce24de1726185ef73b4

SHA512
053b48b147495c576f2f6ce8add509613949056355d6518cf345ad4e8959690e194f0a79b9eb42fc78a57a5d8bd9b45913202be635a762a02f939a83b8a5213b

Download Submit
C:\Users\Admin\AppData\Local\Temp\kaoqymvcsywrabck.exe

Filesize
94KB

MD5
2c1f8a0fa5ea49ef80bb7f6cdcdd946f

SHA1
29e1a5bb66437404e04bb13b2f77b7876ab794cf

SHA256
1a21cfd3103820715d2c6b13282a4002f08a0e56b034bce24de1726185ef73b4

SHA512
053b48b147495c576f2f6ce8add509613949056355d6518cf345ad4e8959690e194f0a79b9eb42fc78a57a5d8bd9b45913202be635a762a02f939a83b8a5213b

Download Submit
memory/3728-147-0x0000000000400000-0x0000000000439B84-memory.dmp

Filesize
230KB

Download
memory/3896-138-0x0000000000400000-0x0000000000439B84-memory.dmp

Filesize
230KB

Download
memory/3896-145-0x0000000000400000-0x0000000000439B84-memory.dmp

Filesize
230KB

Download