b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f

Analysis

max time kernel
151s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02-10-2022 10:09

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General

Target

b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe
Size

78KB
MD5

6d89d9e1d6d42b45d662bdbb7db5a070
SHA1

506c839f9b47399bbbd688ffcd90ddcc2ec05af8
SHA256

b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f
SHA512

69210a0cfd74361a9b8d0fd17f2e55961ee5dc6de822d5b8f2b08dea31fcbe1fd8e3542d2387d7b40d63b5e57ba29151f82a2a83328473a00d803841760f8bce
SSDEEP

1536:vAowfbJFgjQ284U+w2EwRzSIUqhwDKopH0njncnjjjjjjjjnjnjnjnjnjjjj:vAowVFgjQiUkEwtSXqhwDKopH0njncnH

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
288	microsofthelp.exe

Deletes itself 1 IoCs

pid	Process
288	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"	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 360 wrote to memory of 288	360	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe	27
PID 360 wrote to memory of 288	360	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe	27
PID 360 wrote to memory of 288	360	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe	27
PID 360 wrote to memory of 288	360	b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe	27

C:\Users\Admin\AppData\Local\Temp\b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe
"C:\Users\Admin\AppData\Local\Temp\b2d2a3eb71f5c8d3d4e8bea049b5d125f0e13d31746fa9be609d5c1f8a00381f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:360
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Executes dropped EXE
  - Deletes itself
  - Drops file in Windows directory
  PID:288

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
78KB

MD5
ba7eb104267eb4939c99c5fdcb409f87

SHA1
c9900f710cc5fceb98c537b0f4b40026294f9321

SHA256
a6a58ddbcf5a7f4f36330a75da5ca78944468a5d7ef5f869b0c28eff8d6579ee

SHA512
6e56e2ef968a65acd4ec67bf553e51e9dfe468d8b0298f2be98003615696b184544c803ff06f4f9cac7ab46c384c48c5e2de2eb521b8e9e79ca3624b147f1fae

Download Submit
C:\Windows\microsofthelp.exe

Filesize
78KB

MD5
ba7eb104267eb4939c99c5fdcb409f87

SHA1
c9900f710cc5fceb98c537b0f4b40026294f9321

SHA256
a6a58ddbcf5a7f4f36330a75da5ca78944468a5d7ef5f869b0c28eff8d6579ee

SHA512
6e56e2ef968a65acd4ec67bf553e51e9dfe468d8b0298f2be98003615696b184544c803ff06f4f9cac7ab46c384c48c5e2de2eb521b8e9e79ca3624b147f1fae

Download Submit
memory/288-58-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/288-59-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/288-60-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/360-56-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download