5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95

Analysis

max time kernel
120s
max time network
93s
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 14:41

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General

Target

5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe
Size

52KB
MD5

6126ae83340aff64aa68f2297dacc860
SHA1

0aab2626102cbf1ce97843848cf9f515cf808415
SHA256

5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95
SHA512

ee2500217b776503273a91774dc0e096dbc1c708e601ca9993a1543936faecfc7dd744b7d8dd1dba3488610e967397668efc2d8648f753c603d685f2086bfe3b
SSDEEP

1536:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYVFl2g5u58dO0xXHQEyYfdhNhFO5h3xhIO:+MA6C1VqaqhtgVRNToV7TtRu8rM0wYVc

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
3372	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
3372	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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 3372	400	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe	82
PID 400 wrote to memory of 3372	400	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe	82
PID 400 wrote to memory of 3372	400	5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe	82

C:\Users\Admin\AppData\Local\Temp\5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe
"C:\Users\Admin\AppData\Local\Temp\5b21262ebb0b926d8093bb41064b77c17efc7104f9cd8a430bb257b069806d95N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3372

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
52KB

MD5
329fccd25d7d3c383379488983598fcf

SHA1
1349d7fdabd4c84783bb48da394d54d346d6545e

SHA256
e3a50babe690dc1883a8e6f8300ab29a392bbbe0ef224f24fa2f5302999a6af5

SHA512
bc78999832f04d9d61118df193311e4bb811e94da5cf91ac61a9d30ad073e749226ec7e9af2f425b4836b9dd5ea945750db23f15000cecf2d3c1ce86849a2ab3

Download Submit
memory/400-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/400-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3372-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3372-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads