658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837

Analysis

max time kernel
149s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/10/2024, 22:39

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General

Target

658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe
Size

43KB
MD5

42cd6c72061aee39ac64846122b91996
SHA1

fc177a65882946f74722b63c93bae4013449ecfd
SHA256

658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837
SHA512

96b873c5def3546ad5803693b12225a7914b54a31a734f4a161178c2da374a612e67cf19bb5eb4166f5de373a75655ca77a57a77ffdbb7aecb198449749b0bb3
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhw:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYQ

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1440	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1440	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.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	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 1440	4804	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe	85
PID 4804 wrote to memory of 1440	4804	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe	85
PID 4804 wrote to memory of 1440	4804	658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe	85

C:\Users\Admin\AppData\Local\Temp\658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe
"C:\Users\Admin\AppData\Local\Temp\658817b03e227ee13d4505755a30c1dd4c10670c0fe1719bd951d5676634a837.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1440

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
43KB

MD5
074f3626600ae257e4f2926e8e1a80df

SHA1
25247fecce5a296e2814207e9f04554b094a0ce8

SHA256
4ae1b50265831dc115a0ba6e8186310e264d12cf645bf38051fad50a93e4ea1d

SHA512
4383901cba39603d6332be9ee9e4c9ccc77afeefa6f8a43e18f6740b9b45f9fe23d855725bcd37e92b2bde8b71b3b15af4a0f440ccb161b1dd976b0f5942bdec

Download Submit
memory/1440-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1440-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4804-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4804-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads