b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1

Analysis

max time kernel
119s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2024, 13:48

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General

Target

b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe
Size

83KB
MD5

1b5c985624f6565d2f83de50ec7b9a90
SHA1

5659a920bb3846154970bddd7b62b7d7a40b9315
SHA256

b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1
SHA512

03cd8969a106bd96c28504112edc3fa2690d2f415e41e2e692393152b344d9590e43228fef5fedb9979b10b0ff9e2f0a638be903d017dd7714085d73a3d6ebd1
SSDEEP

1536:86RAo0ej2d6rnJwwvlNlIUBvsI7hrhEh9cpDN/qhAvP3OInvnHvvxIfhqhcGoI/b:xAo1lOwvlNlXBvsI7hrhEh9cpDN/qhAb

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3756	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3756	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 672 wrote to memory of 3756	672	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe	83
PID 672 wrote to memory of 3756	672	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe	83
PID 672 wrote to memory of 3756	672	b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe	83

C:\Users\Admin\AppData\Local\Temp\b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe
"C:\Users\Admin\AppData\Local\Temp\b88a636499bb76e69635555eac4f96f197e92ba262ac27f85ed1b7b73eb6f4b1N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:672
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:3756

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
83KB

MD5
0e5167fd17b104caad4c9872fba39ec3

SHA1
7777ac707610dadd6c896a25816792aaf0c3b32e

SHA256
86976712b8f255dfde4d52d077a09f5701b05d7efb14c6f25a9c853173feee2d

SHA512
e5711e8fb2c5db3a6707fe2ec2bf24498e213e6ec6dc8000aa2b5799c00948c0f0a211ba81f6c55bf1baaeafe843d5d740cfcc4e1a8ddc85719ce9150cf8fb51

Download Submit
memory/672-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/672-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3756-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3756-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads