b6888b8925cbcfc980e4e0ea8a9d68ff2e7a1289ed456abdfdc8f614312abd62

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
21/08/2024, 13:06

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General

Target

c83c1a67a2d39dd131ba716842b83010N.exe
Size

63KB
MD5

c83c1a67a2d39dd131ba716842b83010
SHA1

9e2b7ad2af2559464affc6dd64ddd32d441c18ca
SHA256

b6888b8925cbcfc980e4e0ea8a9d68ff2e7a1289ed456abdfdc8f614312abd62
SHA512

42a4b9416773bedb16bf45e55c3ef6a8854e6b958cbb133e785b6950ab1e59290929657760bc23480942a58e9b11220381b3a37f955e2e37d37f8cfb45462e6d
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6v8tvGE9UHrSdghj8bvHRIkhbUIchUh80mhDoOho8F:lAo1lOwvlKlXBP6v8tvGE9UHrSdghj8e

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4048	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4048	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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	c83c1a67a2d39dd131ba716842b83010N.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	c83c1a67a2d39dd131ba716842b83010N.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	c83c1a67a2d39dd131ba716842b83010N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 4048	2620	c83c1a67a2d39dd131ba716842b83010N.exe	84
PID 2620 wrote to memory of 4048	2620	c83c1a67a2d39dd131ba716842b83010N.exe	84
PID 2620 wrote to memory of 4048	2620	c83c1a67a2d39dd131ba716842b83010N.exe	84

C:\Users\Admin\AppData\Local\Temp\c83c1a67a2d39dd131ba716842b83010N.exe
"C:\Users\Admin\AppData\Local\Temp\c83c1a67a2d39dd131ba716842b83010N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2620
- 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:4048

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
63KB

MD5
1f601ac3338ef1097b802d3449737151

SHA1
0b2c4b44776ed1294ed23efc08f67db5ed5c67b3

SHA256
237907b25a42e1c2156493e64fb28b650c8d310228383da066cdf5fbc253f627

SHA512
2c13747d6eea693caba4e6513062faf462d4a97716958454297dd8e10cff0802b9374283ef952a21b6b6744685d64b5f0de6175068d144dd9b8549f63c34bb2a

Download Submit
memory/2620-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2620-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4048-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads