7476915618ff5b7c002633837d6c9b1ba2a6fa04b9569054713c3b2858960c90

Analysis

max time kernel
119s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
19/08/2024, 01:17

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General

Target

ae35361913d320c3069363fa3fa3ade0N.exe
Size

2.6MB
MD5

ae35361913d320c3069363fa3fa3ade0
SHA1

83743b5c8258414b52fbf433e1ed3eaf2f6b441c
SHA256

7476915618ff5b7c002633837d6c9b1ba2a6fa04b9569054713c3b2858960c90
SHA512

fac4e27ef436c49df0e9ff87b8f66afcc72e6f5b7f723db6f3a148030f4b274ced028680abadeb8cde97e41426c60d7f92294f7fa9492949eba78144b6197114
SSDEEP

49152:sxX7665YxRVplZzSKntlGIiT+HvRdpcAHSjpjK3LBfB/bS:sxX7QnxrloE5dpUpob

Score

9^/10

credential_access discovery persistence spyware stealer

Malware Config

Signatures

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysxopti.exe	ae35361913d320c3069363fa3fa3ade0N.exe

Executes dropped EXE 2 IoCs

pid	Process
2144	sysxopti.exe
2316	devdobec.exe

Loads dropped DLL 2 IoCs

pid	Process
2296	ae35361913d320c3069363fa3fa3ade0N.exe
2296	ae35361913d320c3069363fa3fa3ade0N.exe

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
T1552.001

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Parametr = "C:\\SysDrvRW\\devdobec.exe"	ae35361913d320c3069363fa3fa3ade0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Parametr = "C:\\KaVBR9\\optiasys.exe"	ae35361913d320c3069363fa3fa3ade0N.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	ae35361913d320c3069363fa3fa3ade0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sysxopti.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	devdobec.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2296	ae35361913d320c3069363fa3fa3ade0N.exe
2296	ae35361913d320c3069363fa3fa3ade0N.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe
2144	sysxopti.exe
2316	devdobec.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2144	2296	ae35361913d320c3069363fa3fa3ade0N.exe	30
PID 2296 wrote to memory of 2144	2296	ae35361913d320c3069363fa3fa3ade0N.exe	30
PID 2296 wrote to memory of 2144	2296	ae35361913d320c3069363fa3fa3ade0N.exe	30
PID 2296 wrote to memory of 2144	2296	ae35361913d320c3069363fa3fa3ade0N.exe	30
PID 2296 wrote to memory of 2316	2296	ae35361913d320c3069363fa3fa3ade0N.exe	31
PID 2296 wrote to memory of 2316	2296	ae35361913d320c3069363fa3fa3ade0N.exe	31
PID 2296 wrote to memory of 2316	2296	ae35361913d320c3069363fa3fa3ade0N.exe	31
PID 2296 wrote to memory of 2316	2296	ae35361913d320c3069363fa3fa3ade0N.exe	31

C:\Users\Admin\AppData\Local\Temp\ae35361913d320c3069363fa3fa3ade0N.exe
"C:\Users\Admin\AppData\Local\Temp\ae35361913d320c3069363fa3fa3ade0N.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysxopti.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysxopti.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2144
- C:\SysDrvRW\devdobec.exe
  C:\SysDrvRW\devdobec.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2316

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:\KaVBR9\optiasys.exe

Filesize
1.4MB

MD5
1846af9e8b55558541978d7c56478edb

SHA1
547f27f580ed217db608fc58faecb1dcb3b7543b

SHA256
7c6db1f5dd41aba0b5ee24e4372b0e3cf316d0b24b7ccdf6d15f3d773aa5b4dd

SHA512
863a883ee684a9eca2ce85aa2a2cdeae7c5dbaad9776f5795f2cdc6cba19fbd24e571c2981520079bd260f48dcffc8b1f42a9d9f65c2582894b1d60f6e94df9b

Download Submit
C:\KaVBR9\optiasys.exe

Filesize
6KB

MD5
0860ba7ab87e6dbf893e728aa4621778

SHA1
6296ec6dd59bc3b8a68b647437f788d3632c62db

SHA256
dae0dd40453db7d1814b71e7428dae76ec100c87d90429cfe275f635828912b2

SHA512
6b72d47a2829acfcf1490f689278dd8559279bed5d5c4557d0d0a5168428051f1906438558ebacac45c8aee6d3c2408cb4723e18b3d3bcc087625db5239ebaef

Download Submit
C:\SysDrvRW\devdobec.exe

Filesize
2.6MB

MD5
4fc31d5ec78857d5fc124bca27ed6a11

SHA1
94ed693f83c48e5443596540bd5e3fecd9ff916b

SHA256
1e2a3890be0271525cbc89acf47c4945ab595d83c1dc6820b56395b6c02e520e

SHA512
79dd3bd4a4d0c3386a8551dcc0ed3f07f4e1d9662d91d7ec22ec08775732652526ea15e5358cc4a89fc8fc3776fc991144fe939cf42d3e1c0152a1f243863590

Download Submit
C:\Users\Admin\253086396416_6.1_Admin.ini

Filesize
172B

MD5
48b0e152c54f4f0e954b3f212ab469a4

SHA1
a52e08dd12d5243328cf743f8e6e61f55874b255

SHA256
e140d0dd62ee5f5d9a83f6ced099d080f48eb591395318eb333b02f42333122e

SHA512
b2174a65135b1af7bb9d6b12eb0c2b84fb0efcaa3f6271b4b8d5fe4201fd2879440729c9fcc149d52b1b68775e6fab8149b98dc1dde64080497265ce79ac8f5b

Download Submit
C:\Users\Admin\253086396416_6.1_Admin.ini

Filesize
204B

MD5
969f07817dc11d8b8ffbaa3b4e37321e

SHA1
e7bef68c024a26d6a08b5a5ceaee251ce824f7a4

SHA256
c0a16025d7e20280e786890eeb772d31b5dafab3aed9f28a656c6a66780e7a78

SHA512
cdc45b27d3a6fc3c3a89823edb7bdf8886a4fa3ffd055c5c4f753c12c7f29c8603326352633d357eeafac25558abf024325c9bcf028fa37d8b7a1bf681b4c1f7

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sysxopti.exe

Filesize
2.6MB

MD5
93df60cd4089d2057289107553b39825

SHA1
f06cf167fcd59d0ad56dff05cdc30d8c95cee9fa

SHA256
edc3598d2c0af6ba8ce09b104dc2f6992d05206415a271637f4779831cd2dd6d

SHA512
7e423dcc5f258a3e8d23bce780ac393660487b48fddaf906bfd5457f85fa9bb09741a93abb426f16d08792eee6f06b5328db7fe63757bd2343e15921ca9da245

Download Submit