31b051415738aa141d21b6849b1021021bab1d51bc97cbbb1affc20b19a9eb98

Analysis

max time kernel
119s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14/08/2024, 18:44

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General

Target

bf143fe348808dcdee7ae030099d4130N.exe
Size

35KB
MD5

bf143fe348808dcdee7ae030099d4130
SHA1

3f80ce5a11ff26f7cb6479fcdeb85c833f079570
SHA256

31b051415738aa141d21b6849b1021021bab1d51bc97cbbb1affc20b19a9eb98
SHA512

25e159d4f8cc55c3902406161695d29876f76e1d7dfdeaba3a4b8209693adb0bf674cd3d9cca846562f5d0e7c8a8b0be6acfc93d95a51a79b831ee6ca0f99659
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Emkcb:e6q10k0EFjed6rqJ+6vghzwYu7vih9G2

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4000	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4000	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	bf143fe348808dcdee7ae030099d4130N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	bf143fe348808dcdee7ae030099d4130N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	bf143fe348808dcdee7ae030099d4130N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 4000	2176	bf143fe348808dcdee7ae030099d4130N.exe	84
PID 2176 wrote to memory of 4000	2176	bf143fe348808dcdee7ae030099d4130N.exe	84
PID 2176 wrote to memory of 4000	2176	bf143fe348808dcdee7ae030099d4130N.exe	84

C:\Users\Admin\AppData\Local\Temp\bf143fe348808dcdee7ae030099d4130N.exe
"C:\Users\Admin\AppData\Local\Temp\bf143fe348808dcdee7ae030099d4130N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2176
- 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:4000

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
35KB

MD5
2b428e70ace4cdbcf57bba61ab99d72d

SHA1
ff5b28f2483d1aefb6b55f7298f33a9244bc1c88

SHA256
84b824fb5798e5deb63ea1d2c76a790d32d2a2385a52e4f79c001a1336509df0

SHA512
3fb664a68f0ec1fbb82d42977b789f5d46277a1723df8f941289dd652d40ae1e7890d68761aaffb3c7cce39bca3697b9e23ad598068aab60519eac18011cafa6

Download Submit
memory/2176-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2176-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4000-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads