850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:21

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General

Target

850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe
Size

32KB
MD5

a57ce5627ac406f8ed810662b40289c1
SHA1

f69e1f314fede93e0467a079fa9256c932ada2d3
SHA256

850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608
SHA512

117112fb25f9dd577e58dc72955d218ed47f2352ecc5184385c552ac1bf9a4d0445805527b188b90e20fdffa354ff2e3f847f84b30cb5c6f3dff2914db251836
SSDEEP

768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhj:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYD

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

1888 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

1888 microsofthelp.exe

pid	process
1888	microsofthelp.exe

pid	process
1888	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

Drops file in Windows directory 1 IoCs

Processes:

850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

description ioc process

File created C:\Windows\microsofthelp.exe 850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe

description	pid	process	target process
PID 840 wrote to memory of 1888	840	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe	microsofthelp.exe
PID 840 wrote to memory of 1888	840	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe	microsofthelp.exe
PID 840 wrote to memory of 1888	840	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe	microsofthelp.exe
PID 840 wrote to memory of 1888	840	850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe
"C:\Users\Admin\AppData\Local\Temp\850e09ef8d0940dfef6a9db3536cf7d492de5ae608472f0a2a9e22cdf483f608.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:840

C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
2⤵
- Deletes itself
- Executes dropped EXE
PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\microsofthelp.exe

Filesize
32KB

MD5
d3ce5c7aa97de396a284e080350cb4f2

SHA1
c9cea2d93c97fccf8bb711bb3ab216044581ec7f

SHA256
aede061bb716fb7eb46bf8a61e76fc1898f4b92ad6886c1b44418ee13c769df5

SHA512
aba71b93fd0f3ec17ab6b807fdc3bf5a259bb00b05bb58c0a53db2ce5dc6d793f58f264cf52aaade2938d2ab05bb527ea852275bd07ad58f55260dcace11064f

Download Submit
memory/840-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/840-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1888-8-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download