eaf978fd469c4acc54a1b4cdaa4298c04b385b0cce10215f96a737b26a27fd30

Analysis

max time kernel
123s
max time network
128s
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 02:53

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General

Target

24527c1cb60027d91ddc051990ba55ca.exe
Size

308KB
MD5

24527c1cb60027d91ddc051990ba55ca
SHA1

6f55efac879c92f116ab73ccd431c898c6f794f9
SHA256

eaf978fd469c4acc54a1b4cdaa4298c04b385b0cce10215f96a737b26a27fd30
SHA512

cbf0dab2eb7e3b44359db887a7441459a49575faaab0cfec6ddb67b43957391510fb7a0beb63098c3d826c96c91fff284e726c16284f70128b7cd577d30ee11e
SSDEEP

6144:bOsY+HgEiTA14Xn0Ti8v1bbFgXIQdjrfzNt1mEP3:i814Xn0Ti8tbJyIQdjrfzQEP3

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 3524 2824 rundll32.exe

description	pid	pid_target	process	target process
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3524	2824	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:

24527c1cb60027d91ddc051990ba55ca.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	24527c1cb60027d91ddc051990ba55ca.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

228 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

4632 228 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 26 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
228	rundll32.exe

pid	pid_target	process	target process
4632	228	WerFault.exe	rundll32.exe

description	flow	ioc
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

24527c1cb60027d91ddc051990ba55ca.exe24527c1cb60027d91ddc051990ba55ca.exe

pid	process
1272	24527c1cb60027d91ddc051990ba55ca.exe
1272	24527c1cb60027d91ddc051990ba55ca.exe
1564	24527c1cb60027d91ddc051990ba55ca.exe
1564	24527c1cb60027d91ddc051990ba55ca.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

24527c1cb60027d91ddc051990ba55ca.exerundll32.exe

description	pid	process	target process
PID 1272 wrote to memory of 1564	1272	24527c1cb60027d91ddc051990ba55ca.exe	24527c1cb60027d91ddc051990ba55ca.exe
PID 1272 wrote to memory of 1564	1272	24527c1cb60027d91ddc051990ba55ca.exe	24527c1cb60027d91ddc051990ba55ca.exe
PID 1272 wrote to memory of 1564	1272	24527c1cb60027d91ddc051990ba55ca.exe	24527c1cb60027d91ddc051990ba55ca.exe
PID 3524 wrote to memory of 228	3524	rundll32.exe	rundll32.exe
PID 3524 wrote to memory of 228	3524	rundll32.exe	rundll32.exe
PID 3524 wrote to memory of 228	3524	rundll32.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\24527c1cb60027d91ddc051990ba55ca.exe
"C:\Users\Admin\AppData\Local\Temp\24527c1cb60027d91ddc051990ba55ca.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272

C:\Users\Admin\AppData\Local\Temp\24527c1cb60027d91ddc051990ba55ca.exe
"C:\Users\Admin\AppData\Local\Temp\24527c1cb60027d91ddc051990ba55ca.exe" -h
2⤵
- Suspicious use of SetWindowsHookEx
PID:1564

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:3524

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
2⤵
- Loads dropped DLL
PID:228

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 228 -s 572
3⤵
- Program crash
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 228 -ip 228
1⤵
PID:2124

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

Replay Monitor

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Downloads

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

MD5
50195924762ca74975bfe703a408e687

SHA1
e3d29ab66cba1da445c98ae7c26c3e822aa5debf

SHA256
a04ae2447a8a37d4a5542815189ccca3dca71c02d744f51c6cbcee4048204116

SHA512
61902d8b500b19438fdcdc3d99b238313c95d15947f29e6f5c30b5e5a90aaf92624ee153648d33024cba20f6dbaf599deca5cd5c64cb2b7f3d9f8ea1de9800a0

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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