83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8

Analysis

max time kernel
149s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 23:49

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General

Target

83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe
Size

34KB
MD5

e00cbe9a5d36ea1ff0208c6c75672cf1
SHA1

7f9b5d6179a2c818c87050cd6a2e8d1b7047ab12
SHA256

83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8
SHA512

0313af5b5eeee66f0f7a6b13d9ecc15de7a5277705ffb73c08aa899130c45ec2182c87e5a1f736001747f5a0f26f5f5a451ecf2cf2af9724936ca18398d7f087
SSDEEP

768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhQ:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYw

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

microsofthelp.exe

pid process

4424 microsofthelp.exe
Executes dropped EXE 1 IoCs

Processes:

microsofthelp.exe

pid process

4424 microsofthelp.exe

pid	process
4424	microsofthelp.exe

pid	process
4424	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

Drops file in Windows directory 1 IoCs

Processes:

83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

description ioc process

File created C:\Windows\microsofthelp.exe 83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

description	ioc	process
File created	C:\Windows\microsofthelp.exe	83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe

description	pid	process	target process
PID 904 wrote to memory of 4424	904	83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe	microsofthelp.exe
PID 904 wrote to memory of 4424	904	83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe	microsofthelp.exe
PID 904 wrote to memory of 4424	904	83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe	microsofthelp.exe

C:\Users\Admin\AppData\Local\Temp\83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe
"C:\Users\Admin\AppData\Local\Temp\83e9d39a08e9116db0d79bc34277ff48ce47b29a065ae76f526984911eaeb9e8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:904

C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
2⤵
- Deletes itself
- Executes dropped EXE
PID:4424

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
34KB

MD5
fd519b0cdd42cc17422054fddfde6cac

SHA1
f00f161e6e4d683ab62cf69dfdf0cdc6630bec8a

SHA256
12fef1cb693eb495d868039de94259a73158dbf8ac2833bea631dcbc63fd48c0

SHA512
abeb9dadbdf2945801d08b236f60dce4c1ff805a9c359a039cccfb0c7287cf3a5bdc8172e7549a01aa574d2c8cae62b172f38dadd5b759d3f1ecb4810e91e329

Download Submit
memory/904-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/904-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4424-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download