28074df39fb5c578415a9ae0cafa6c3c859d3bc5ff30f9019729b4d8cc200599

Analysis

max time kernel
120s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/08/2024, 04:52

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General

Target

4b8554177b20fe30128e500fdaa42900N.exe
Size

50KB
MD5

4b8554177b20fe30128e500fdaa42900
SHA1

bc5d30ddce30c70013b8471c3687a513af90205b
SHA256

28074df39fb5c578415a9ae0cafa6c3c859d3bc5ff30f9019729b4d8cc200599
SHA512

6f25ee463b22151cc909cd28774d57547ac612fc122cff1477ad29832049acea6e07ae779c224b5a33bac87d6c4f94313a01d49b9542d64461eefb0acde545a4
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIv:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYV5

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3360	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3360	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	4b8554177b20fe30128e500fdaa42900N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	4b8554177b20fe30128e500fdaa42900N.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	4b8554177b20fe30128e500fdaa42900N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 3360	4272	4b8554177b20fe30128e500fdaa42900N.exe	84
PID 4272 wrote to memory of 3360	4272	4b8554177b20fe30128e500fdaa42900N.exe	84
PID 4272 wrote to memory of 3360	4272	4b8554177b20fe30128e500fdaa42900N.exe	84

C:\Users\Admin\AppData\Local\Temp\4b8554177b20fe30128e500fdaa42900N.exe
"C:\Users\Admin\AppData\Local\Temp\4b8554177b20fe30128e500fdaa42900N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3360

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
874c445f7a2da2196ebb66311e772f63

SHA1
b3ccbf8fefe2482934f44a7303e42c9e68681b05

SHA256
4deaee92a0510cccb5ddd061c382f9ee3945b1de34780b6466054d898a0139ac

SHA512
935b1c599900357698f07a841c5a2f3497b1dcce5a9e70a9aa899e15c0c3ba76c842920c1ced973f55cf614a755f497677e8bbabfff27bcf5de5d3cb4b99ef0e

Download Submit
memory/3360-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4272-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/4272-4-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads