a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf

Analysis

max time kernel
211s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
11/10/2022, 04:49

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General

Target

a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe
Size

81KB
MD5

6d47efbe0b08591f5a5d98e8ae34f4d0
SHA1

22b1e16c9c289550d707f6f857674a1724d17dae
SHA256

a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf
SHA512

0d41040cfc59dbfcb8f9e8822981d04daa3710698875d2c193318064fe7052d0e885d9de9588433bce6d0b139a2fa99e6f5536da8d13940f5fa04a4ad89acd5d
SSDEEP

1536:vAowfbJFgjQ284U+w2EwRzSIUqhwDKopH0njncIInjnjnjjjjjnjjjnjnjnjnjj/:vAowVFgjQiUkEwtSXqhwDKopH0njncI0

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
948	microsofthelp.exe

Deletes itself 1 IoCs

pid	Process
948	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 960 wrote to memory of 948	960	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe	27
PID 960 wrote to memory of 948	960	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe	27
PID 960 wrote to memory of 948	960	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe	27
PID 960 wrote to memory of 948	960	a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe	27

C:\Users\Admin\AppData\Local\Temp\a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe
"C:\Users\Admin\AppData\Local\Temp\a84fdbd02e6bc4a21a55e30abec735742ec49e328ffe866011c835e9a4ccbdbf.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:960
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Drops file in Windows directory
  PID:948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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
81KB

MD5
0bc7dfdfa0e293136a81038c4a2c657d

SHA1
c67fb206505d56f5e9b2c6914aae5d428c48b5c5

SHA256
e4e315181b1fddede8075ffd4baeca295a48ee44bdf4a34887d91bc4aabcf54c

SHA512
4f1ca7cef903add276b940ef9adfb81e71f75dbec13c4be17574f6f40069b7348553e760b065c0d405788cdf1314ee2299031d0792850f58e667220abd9b3835

Download Submit
C:\Windows\microsofthelp.exe

Filesize
81KB

MD5
0bc7dfdfa0e293136a81038c4a2c657d

SHA1
c67fb206505d56f5e9b2c6914aae5d428c48b5c5

SHA256
e4e315181b1fddede8075ffd4baeca295a48ee44bdf4a34887d91bc4aabcf54c

SHA512
4f1ca7cef903add276b940ef9adfb81e71f75dbec13c4be17574f6f40069b7348553e760b065c0d405788cdf1314ee2299031d0792850f58e667220abd9b3835

Download Submit
memory/948-57-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/948-59-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/948-60-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/960-56-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download