71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/10/2024, 03:33

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General

Target

71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe
Size

50KB
MD5

f67b6e7165d9ae377fb2b25455d73660
SHA1

2101c1a957346e95bdc58708d92190ec01d2952c
SHA256

71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9
SHA512

c3ac0ea3c7c6f3542573a3ee79349d72ba4cb5a2ea428f1e763ac246a0fe09a01092c9d62629e4955d83d41a08fc0f679761e0fc1c65ca7a43a349fcd7d22d4b
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIw:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVi

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
276	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
276	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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.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	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 276	2684	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe	30
PID 2684 wrote to memory of 276	2684	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe	30
PID 2684 wrote to memory of 276	2684	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe	30
PID 2684 wrote to memory of 276	2684	71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe	30

C:\Users\Admin\AppData\Local\Temp\71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe
"C:\Users\Admin\AppData\Local\Temp\71ca5ec4b95e11255a952d9f3777b21ceecacc403262505f84ba8d107fa61cf9N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  PID:276

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
50KB

MD5
93c8362a16acc611c8fada35a1ca9a64

SHA1
9cb16533e247c247872a6f3684782e2165ad26b0

SHA256
23e453c7c7eba4cb4743dfceeb40c4e590169cc371a0a531d1281a87dfbe6103

SHA512
e16fae4c8a89cad5da70182f0de1e966ea1ea393c661d8f1b56d752426be5cec9905dba2d41ea1e93436160abb25977a312fd7bfa2c02ce010a11686ec12c210

Download Submit
memory/276-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/276-9-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2684-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads