78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63

Analysis

max time kernel
162s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/10/2022, 14:18

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General

Target

78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe
Size

96KB
MD5

6e88c025a2fcf2326d58612eccc7a7e0
SHA1

d22d9be430a7101167f03b720042777e964ef8eb
SHA256

78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63
SHA512

3f8467b1944d435847ad71efeaad5687db25ec254ade108ab0f07e4c6f724b7f530aa7d55ed870e79b930be11c9dcabf46cb1e20ed22d7024a7ccf968be32d49
SSDEEP

1536:s/BmvfG1akhJjRR/XHoIV+Mmu8QcoJXjO7HUEotQtGDewoWeH:s/2mjX/XHokBJJXS7EQtGDDz2

Score

8^/10

persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
460	Server.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BaJO2tCCmaBewHAYtgBC7HSo7XepzN.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\BaJO2tCCmaBewHAYtgBC7HSo7XepzN.exe	Server.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Server = "C:\\Users\\Admin\\AppData\\Roaming\\Micro\\Server.exe"	Server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
460	Server.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1536	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe
Token: SeDebugPrivilege	460	Server.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1536	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe
460	Server.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 460	1536	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe	85
PID 1536 wrote to memory of 460	1536	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe	85
PID 1536 wrote to memory of 460	1536	78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe	85

C:\Users\Admin\AppData\Local\Temp\78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe
"C:\Users\Admin\AppData\Local\Temp\78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1536
- C:\Users\Admin\AppData\Roaming\Micro\Server.exe
  "C:\Users\Admin\AppData\Roaming\Micro\Server.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Micro\Server.exe

Filesize
96KB

MD5
6e88c025a2fcf2326d58612eccc7a7e0

SHA1
d22d9be430a7101167f03b720042777e964ef8eb

SHA256
78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63

SHA512
3f8467b1944d435847ad71efeaad5687db25ec254ade108ab0f07e4c6f724b7f530aa7d55ed870e79b930be11c9dcabf46cb1e20ed22d7024a7ccf968be32d49

Download Submit
C:\Users\Admin\AppData\Roaming\Micro\Server.exe

Filesize
96KB

MD5
6e88c025a2fcf2326d58612eccc7a7e0

SHA1
d22d9be430a7101167f03b720042777e964ef8eb

SHA256
78e58fd19befda5f34f04ad0b71a460640dce4e27c9d382bd67f9ca0a76aac63

SHA512
3f8467b1944d435847ad71efeaad5687db25ec254ade108ab0f07e4c6f724b7f530aa7d55ed870e79b930be11c9dcabf46cb1e20ed22d7024a7ccf968be32d49

Download Submit
memory/460-137-0x0000000074640000-0x0000000074BF1000-memory.dmp

Filesize
5.7MB

Download
memory/460-138-0x0000000074640000-0x0000000074BF1000-memory.dmp

Filesize
5.7MB

Download
memory/1536-132-0x0000000074640000-0x0000000074BF1000-memory.dmp

Filesize
5.7MB

Download
memory/1536-136-0x0000000074640000-0x0000000074BF1000-memory.dmp

Filesize
5.7MB

Download