a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036f

Analysis

max time kernel
119s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 07:36

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General

Target

a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe
Size

49KB
MD5

ee54b299c0b3ae1c08546920900df2b0
SHA1

624f3668fa51057694f25f72122949364e978854
SHA256

a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036f
SHA512

1fe151b785842f0913a14e8585ba6f784f8b95dee6b8f81994568f154257ab645419c207fcc150f2f5ee42496d0aaf35ac100d8438acfe7946cdfcbdd2215e0b
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIE:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVi

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1828	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	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"	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.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	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1828	1668	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe	82
PID 1668 wrote to memory of 1828	1668	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe	82
PID 1668 wrote to memory of 1828	1668	a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe	82

C:\Users\Admin\AppData\Local\Temp\a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe
"C:\Users\Admin\AppData\Local\Temp\a81eb4d0dd87d3274148d1817111feed2eb61129250ae05dfd445e09422b036fN.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1828

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
a76a40060d409d53e3fe85c57c172a1b

SHA1
434a51f4a9114d3eba72cfe58f7c1a088f9cd917

SHA256
3f1069c5916539937844b4ed0c32fd770b5788c4a85942593e92e48bca4ebbc8

SHA512
8c0b10537ecb22376dbcb20e10722c3e3db9471f6164cab9186d6f123a92a30f553fd0877aab56fdf72614a1000d4c11f1511b0ab0766793047cdb653dded859

Download Submit
memory/1668-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1668-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1828-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/1828-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads