1d636ae88bab15613db7d92a33c0bd9d107270d68991faa01c6de1fa06364d92

Analysis

max time kernel
77s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2023 04:30

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General

Target

ae6df34a140bf74860ca3165d50d8705.exe
Size

308KB
MD5

ae6df34a140bf74860ca3165d50d8705
SHA1

ca21f7b3086341f2927f07d7005cce7cf4585c6b
SHA256

1d636ae88bab15613db7d92a33c0bd9d107270d68991faa01c6de1fa06364d92
SHA512

28080dc00054e209739bdbfb64704dae6bd5c82376606ae1fd61c4e0bfc502019e687ceb26b11a066b27f6b9c14dbce382ae3d1097954bc604a40c8ecd2117d6
SSDEEP

6144:bOsY+HgEiTA14Xn0Ti8v1bbFgXIQdjrfzNt1AEP3:i814Xn0Ti8tbJyIQdjrfzmEP3

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 5080 4784 rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5080	4784	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:

ae6df34a140bf74860ca3165d50d8705.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	ae6df34a140bf74860ca3165d50d8705.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

2184 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

2780 2184 WerFault.exe rundll32.exe
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 15 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
2184	rundll32.exe

pid	pid_target	process	target process
2780	2184	WerFault.exe	rundll32.exe

description	flow	ioc
HTTP User-Agent header	15	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

ae6df34a140bf74860ca3165d50d8705.exeae6df34a140bf74860ca3165d50d8705.exe

pid	process
1500	ae6df34a140bf74860ca3165d50d8705.exe
1500	ae6df34a140bf74860ca3165d50d8705.exe
2540	ae6df34a140bf74860ca3165d50d8705.exe
2540	ae6df34a140bf74860ca3165d50d8705.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

ae6df34a140bf74860ca3165d50d8705.exerundll32.exe

description	pid	process	target process
PID 1500 wrote to memory of 2540	1500	ae6df34a140bf74860ca3165d50d8705.exe	ae6df34a140bf74860ca3165d50d8705.exe
PID 1500 wrote to memory of 2540	1500	ae6df34a140bf74860ca3165d50d8705.exe	ae6df34a140bf74860ca3165d50d8705.exe
PID 1500 wrote to memory of 2540	1500	ae6df34a140bf74860ca3165d50d8705.exe	ae6df34a140bf74860ca3165d50d8705.exe
PID 5080 wrote to memory of 2184	5080	rundll32.exe	rundll32.exe
PID 5080 wrote to memory of 2184	5080	rundll32.exe	rundll32.exe
PID 5080 wrote to memory of 2184	5080	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\ae6df34a140bf74860ca3165d50d8705.exe
"C:\Users\Admin\AppData\Local\Temp\ae6df34a140bf74860ca3165d50d8705.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1500

C:\Users\Admin\AppData\Local\Temp\ae6df34a140bf74860ca3165d50d8705.exe
"C:\Users\Admin\AppData\Local\Temp\ae6df34a140bf74860ca3165d50d8705.exe" -h
2⤵
- Suspicious use of SetWindowsHookEx
PID:2540

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:5080

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
2⤵
- Loads dropped DLL
PID:2184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 604
3⤵
- Program crash
PID:2780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2184 -ip 2184
1⤵
PID:4688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
b15c9612f747a2c7d6c429275c853b23

SHA1
46b5013dcc6677feabafb3c35d8aec6e79e1e6d3

SHA256
07b7dbc6e80247cee12695bc386079435ec90d0228f799ff884330b9f4e3c2d5

SHA512
2f70c8c18434e7a7e1475acda04ba2d3e13fd20c73ee14ff28eda50394898333e8c7067bea69cca28cff1226cdf050db55df2bcd629fb82b9f0535a505d07305

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

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

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

MD5
1b20e998d058e813dfc515867d31124f

SHA1
c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

SHA256
24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

SHA512
79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

Download Submit