4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7

Analysis

max time kernel
119s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2024, 22:48

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General

Target

4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe
Size

45KB
MD5

481cfd2ed043d73369984bb665cf2d00
SHA1

49f1be40544a661eeaf3138f1eb243702d51b764
SHA256

4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7
SHA512

3ba1c4d07c3ac262789c1321c92dbcfd993342e0f432a24e5c2b042f85c1e382727a3ce5565243224e0058ce0ff76cb98657db8279260a4407366ff02e17a92e
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Emkc:e6q10k0EFjed6rqJ+6vghzwYu7vih9GN

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
876	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
876	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.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	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.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	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4252 wrote to memory of 876	4252	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe	82
PID 4252 wrote to memory of 876	4252	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe	82
PID 4252 wrote to memory of 876	4252	4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe	82

C:\Users\Admin\AppData\Local\Temp\4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe
"C:\Users\Admin\AppData\Local\Temp\4b62798817538ce659325c9f217c59edde5b543faa0964b821c7db5742c240d7N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4252
- 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:876

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
45KB

MD5
c13d139f1bc57b3ea00904511f35ce70

SHA1
f0aee0caff8aae2c2cfacfddc4b9040a8816175f

SHA256
3f93a60286ffc851a58d30babd3d9856888ec51922eca059f607f526ae3cc4ea

SHA512
42fdcb6daedb2007df512faed8e1885643ce02c8a77cf4581da495ec3b32cc18bea75eb6b92db088301d2216479a71371d58387f8086fc86afe8c5defb93e043

Download Submit
memory/876-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4252-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4252-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads