b42f409312460e0e3105373826b5e2ca514fc11763de22a39f3a648c6a598958

Analysis

max time kernel
120s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 08:07

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General

Target

c4e5bdb7263ffd9d6c2209c6a5609170N.exe
Size

47KB
MD5

c4e5bdb7263ffd9d6c2209c6a5609170
SHA1

29f6fbed4126a63e8b75200882cdb6ceaba97707
SHA256

b42f409312460e0e3105373826b5e2ca514fc11763de22a39f3a648c6a598958
SHA512

79da97d14bf54151478eec370eb73d027c0e410c55a3bb6bc892f66be91f90eb847aaa3e5ee4745b2e28add5d6c204a264dfdab8b6927c31e1702fd79e6935f3
SSDEEP

768:DqPJtsA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhN:DqMA6C1VqaqhtgVRNToV7TtRu8rM0wYt

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2212	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	c4e5bdb7263ffd9d6c2209c6a5609170N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	c4e5bdb7263ffd9d6c2209c6a5609170N.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	c4e5bdb7263ffd9d6c2209c6a5609170N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3760 wrote to memory of 2212	3760	c4e5bdb7263ffd9d6c2209c6a5609170N.exe	84
PID 3760 wrote to memory of 2212	3760	c4e5bdb7263ffd9d6c2209c6a5609170N.exe	84
PID 3760 wrote to memory of 2212	3760	c4e5bdb7263ffd9d6c2209c6a5609170N.exe	84

C:\Users\Admin\AppData\Local\Temp\c4e5bdb7263ffd9d6c2209c6a5609170N.exe
"C:\Users\Admin\AppData\Local\Temp\c4e5bdb7263ffd9d6c2209c6a5609170N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2212

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
47KB

MD5
8f1170eb7e595a03674205b672b352ce

SHA1
a037905fbf3a84f6f27304f6a7bf38bb408cb4d8

SHA256
e0e7a97dcf56d282b9ee1e818ab0f1fd7d165628ed338c14e2e5f68d322c6695

SHA512
d54e55509407a597c6a25ee00fed9610f3c9e9eaf67669481ea843c7762c3087912c2b76b72b6cb4f7d7ff5a72426a6926097734a469adfcafa3582606a2d18c

Download Submit
memory/2212-5-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/2212-7-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3760-0-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download
memory/3760-6-0x0000000000400000-0x0000000000403000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads