8841fec0bc44d3bfe32cbad042766e878feef6b5246ea356e087de2887f0aeef

Analysis

max time kernel
119s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
20/08/2024, 00:39

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General

Target

97857b1e81af40849908d90d31b9cf10N.exe
Size

36KB
MD5

97857b1e81af40849908d90d31b9cf10
SHA1

1825f40f8e9d1df366fd1755372b4fb5738191be
SHA256

8841fec0bc44d3bfe32cbad042766e878feef6b5246ea356e087de2887f0aeef
SHA512

a663948c0a656b709630a2cd82f7fe06f738957aa79ca845236cf3f718a29660967d65e6191e43b78a63814d1c3f74336d6dbb706c4fa7c8ec904b8ca39dc15a
SSDEEP

768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6v8tvGE9UHrSdghj8bvHRIkhbUIchUh84:e6q10k0EFjed6rqJ+6v8tvGE9UHrSdgO

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2488	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2488	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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	97857b1e81af40849908d90d31b9cf10N.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	97857b1e81af40849908d90d31b9cf10N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	97857b1e81af40849908d90d31b9cf10N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 2488	1540	97857b1e81af40849908d90d31b9cf10N.exe	30
PID 1540 wrote to memory of 2488	1540	97857b1e81af40849908d90d31b9cf10N.exe	30
PID 1540 wrote to memory of 2488	1540	97857b1e81af40849908d90d31b9cf10N.exe	30
PID 1540 wrote to memory of 2488	1540	97857b1e81af40849908d90d31b9cf10N.exe	30

C:\Users\Admin\AppData\Local\Temp\97857b1e81af40849908d90d31b9cf10N.exe
"C:\Users\Admin\AppData\Local\Temp\97857b1e81af40849908d90d31b9cf10N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:2488

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
37KB

MD5
dfef926cd96232a7848ac3fd6de9cefe

SHA1
8bd49aca1ef651b3774881d88163f58f7d4b9a12

SHA256
668aae8bee3351851929c8b0903a05fd547ee43b3de9e2ae180accfa800377bb

SHA512
14bd42aaf7b09fb3981c531322ce480fbaab1408d9817be2b109cfbb201ec2dc135ab99c2246ff95ecfff9b1dca3db7e8a736a78cb9744eb1d100458eff2dce6

Download Submit
memory/1540-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1540-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2488-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2488-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads