4c630ce2200378c10f32987f61e5a953dc95b83b712f5117200250e1b147174c

Analysis

max time kernel
120s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 19:26

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General

Target

dc91ef175bbbdd6b67c7c2180a0171c0N.exe
Size

61KB
MD5

dc91ef175bbbdd6b67c7c2180a0171c0
SHA1

22e98fa5b9a28f0771696eb98d5f1fa1294c2784
SHA256

4c630ce2200378c10f32987f61e5a953dc95b83b712f5117200250e1b147174c
SHA512

92faa974ca02aa5cf00e4495264c36e619a1d24818a92d4f944662fd8639f9cc72e8f2edf9f02d7bf6d48f25d443d17d8c79d455915e278a6503760663d341e2
SSDEEP

1536:lAo0ej2d6rnJwwvlKlIUBP6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+uZd7voIU:lAo1lOwvlKlXBP6vghzwYu7vih9GueIp

Score

7^/10

discovery persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4160	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
4160	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"	dc91ef175bbbdd6b67c7c2180a0171c0N.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	dc91ef175bbbdd6b67c7c2180a0171c0N.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.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	dc91ef175bbbdd6b67c7c2180a0171c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 4160	2288	dc91ef175bbbdd6b67c7c2180a0171c0N.exe	84
PID 2288 wrote to memory of 4160	2288	dc91ef175bbbdd6b67c7c2180a0171c0N.exe	84
PID 2288 wrote to memory of 4160	2288	dc91ef175bbbdd6b67c7c2180a0171c0N.exe	84

C:\Users\Admin\AppData\Local\Temp\dc91ef175bbbdd6b67c7c2180a0171c0N.exe
"C:\Users\Admin\AppData\Local\Temp\dc91ef175bbbdd6b67c7c2180a0171c0N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:4160

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
62KB

MD5
c6d024025bc2cd358c13d9802cc80d86

SHA1
7c2ec23550a7d216ef8f5bd6c5b2974529d4fe9d

SHA256
d1a04ba9195b9cc43156dd978dc4623f3b5199773be76b4377b7a3b0203b26db

SHA512
3cd0047c01106706d6e5d27ae57bd5b4cca9957d2b681f8d6d412547770b2b4c52ce259b0eeff4b95cdc79c2901b7020db47211966decca741ec6406502aaf95

Download Submit
memory/2288-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2288-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4160-6-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4160-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads