6aea187ca91ea68222b4e650e2b4baa46ba11252f74763a2d2edec2924a98f10

General

Target

tmp.exe
Size

328KB
MD5

0b39012e51e6d52ddc49dd9676ba9920
SHA1

7e329120d82c58a5f2ccae98eb78d749f1095ff4
SHA256

6aea187ca91ea68222b4e650e2b4baa46ba11252f74763a2d2edec2924a98f10
SHA512

8d13528c02f727d6c15257050657f702622fdbc7836f0b01eda8f48edbe2aa2bb4f8dceb3652f9adead9774f3387a6bba20f95b988dd9fee642ddba5bd457a0c
SSDEEP

6144:evSBanJK/5kPas8N0HEAAf1vbViarAWbd33uEPT:evjas8uHEAAtvBpkLEPT

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exe

description pid pid_target process target process

Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2040 2944 rundll32.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

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation tmp.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1992 rundll32.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

Processes:

WerFault.exe

pid pid_target process target process

308 1992 WerFault.exe rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2040	2944	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	tmp.exe

pid	process
1992	rundll32.exe

pid	pid_target	process	target process
308	1992	WerFault.exe	rundll32.exe

Modifies registry class 44 IoCs

Processes:

tmp.exetmp.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib\ = "{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib\Version = "1.0"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib\Version = "1.0"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\FLAGS\ = "0"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ProxyStubClsid32	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\InprocHandler32\ = "ole32.dll"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\FLAGS	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\0	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp.exe"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\ProgID\ = "sqltest.Application"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ProxyStubClsid32	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp.exe"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\ProgID	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\0\win32	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ = "Isqltest"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\ProgID	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp.exe"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application\CLSID\ = "{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application\CLSID	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application\CLSID\ = "{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\ = "sqltest.Application"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\ProgID\ = "sqltest.Application"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\InprocHandler32	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\InprocHandler32\ = "ole32.dll"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\ = "Isqltest"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\InprocHandler32	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\LocalServer32	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\ = "sqltest"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\HELPDIR	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}\1.0\HELPDIR\	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{6BE54215-DFC6-4D78-BF1A-E1F869104825}\TypeLib\ = "{B4BD8AC7-1474-45B9-87B4-845611FD1CAD}"	tmp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application\ = "sqltest.Application"	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\sqltest.Application\CLSID	tmp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{069D06BB-F6A9-428D-9070-FCFF8F5BC5F4}\LocalServer32	tmp.exe

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 20 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

tmp.exetmp.exe

pid process

1644 tmp.exe
1644 tmp.exe
4952 tmp.exe
4952 tmp.exe

description	flow	ioc
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
1644	tmp.exe
1644	tmp.exe
4952	tmp.exe
4952	tmp.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

tmp.exerundll32.exe

description	pid	process	target process
PID 1644 wrote to memory of 4952	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 4952	1644	tmp.exe	tmp.exe
PID 1644 wrote to memory of 4952	1644	tmp.exe	tmp.exe
PID 2040 wrote to memory of 1992	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1992	2040	rundll32.exe	rundll32.exe
PID 2040 wrote to memory of 1992	2040	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1644

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe" -h
2⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:4952

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:2040

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
2⤵
- Loads dropped DLL
PID:1992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 600
3⤵
- Program crash
PID:308

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1992 -ip 1992
1⤵
PID:4612

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\db.dat
Filesize
557KB

MD5
b15c9612f747a2c7d6c429275c853b23

SHA1
46b5013dcc6677feabafb3c35d8aec6e79e1e6d3

SHA256
07b7dbc6e80247cee12695bc386079435ec90d0228f799ff884330b9f4e3c2d5

SHA512
2f70c8c18434e7a7e1475acda04ba2d3e13fd20c73ee14ff28eda50394898333e8c7067bea69cca28cff1226cdf050db55df2bcd629fb82b9f0535a505d07305

Download Submit
C:\Users\Admin\AppData\Local\Temp\db.dll
Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\db.dll
Filesize
52KB

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit

Analysis

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