38bc13ef112b2f17d4d1a80243fac6a521b5d58228984aae0752d79487fa3b66

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Analysis

max time kernel
92s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04/12/2024, 19:31

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General

Target

eupdate.exe
Size

87KB
MD5

ccfaeed043685c189ef498c3c6f675e7
SHA1

6973b66e83db7f6d9ba957a6f9cca60a4983f0e8
SHA256

5d81fc6ab3e6c7bd353ee53297478fc10abfc7f851359f81a65dea74c70156ff
SHA512

ab8f2d33ec8300d87423f53243f45b720e27d59ab7839d7dcb9d37572c1f4e34536221bfda25dee939218475f44915cac2cf4e9270881af15f53d916bd9dc204
SSDEEP

1536:ZzfLlsKsEJQgrsOCvojaWr2mACx9lRMgzIY/M0t4T5y5cum:Z7wngrsOCvov2mACDP/IY00eVyc

Score

7^/10

discovery persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2296	6F4B627D74491845150070.exe
1008	6F4B627D74491845150070.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Roaming\\6F4B627D74491845150070\\6F4B627D74491845150070.exe"	eupdate.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral5/memory/3640-5-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/3640-7-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/3640-4-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/3640-3-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/1008-24-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/3640-12-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral5/memory/1008-26-0x0000000000400000-0x000000000040F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 4 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	6F4B627D74491845150070.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6F4B627D74491845150070.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eupdate.exe

Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	6F4B627D74491845150070.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	6F4B627D74491845150070.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Internet Explorer\Main\TabProcGrowth = "0"	6F4B627D74491845150070.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3516	eupdate.exe
Token: SeDebugPrivilege	2296	6F4B627D74491845150070.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3516 wrote to memory of 3640	3516	eupdate.exe	82
PID 3640 wrote to memory of 2296	3640	eupdate.exe	83
PID 3640 wrote to memory of 2296	3640	eupdate.exe	83
PID 3640 wrote to memory of 2296	3640	eupdate.exe	83
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84
PID 2296 wrote to memory of 1008	2296	6F4B627D74491845150070.exe	84

C:\Users\Admin\AppData\Local\Temp\eupdate.exe
"C:\Users\Admin\AppData\Local\Temp\eupdate.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3516
- C:\Users\Admin\AppData\Local\Temp\eupdate.exe
  "eupdate.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Users\Admin\AppData\Roaming\6F4B627D74491845150070\6F4B627D74491845150070.exe
    "C:\Users\Admin\AppData\Roaming\6F4B627D74491845150070\6F4B627D74491845150070.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2296
  - - C:\Users\Admin\AppData\Roaming\6F4B627D74491845150070\6F4B627D74491845150070.exe
      "6F4B627D74491845150070.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer Protected Mode
      Modifies Internet Explorer Protected Mode Banner
      Modifies Internet Explorer settings
      PID:1008

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\6F4B627D74491845150070\6F4B627D74491845150070.exe

Filesize
87KB

MD5
ccfaeed043685c189ef498c3c6f675e7

SHA1
6973b66e83db7f6d9ba957a6f9cca60a4983f0e8

SHA256
5d81fc6ab3e6c7bd353ee53297478fc10abfc7f851359f81a65dea74c70156ff

SHA512
ab8f2d33ec8300d87423f53243f45b720e27d59ab7839d7dcb9d37572c1f4e34536221bfda25dee939218475f44915cac2cf4e9270881af15f53d916bd9dc204

Download Submit
memory/1008-26-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1008-24-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2296-25-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/2296-16-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/2296-17-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/2296-15-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/3516-13-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3516-2-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3516-0-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/3516-1-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3640-7-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3640-4-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3640-3-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3640-5-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/3640-12-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads