300c3abab170feb7e7aff739a157de89593a981f03d096a6bf669ab3e508db8f

Analysis

max time kernel
120s
max time network
117s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 08:29

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General

Target

2791c3d6968cc6953e6387838057a460N.exe
Size

2.6MB
MD5

2791c3d6968cc6953e6387838057a460
SHA1

bb69aefaa7a617785ad5a14250ac1624c4f38e8e
SHA256

300c3abab170feb7e7aff739a157de89593a981f03d096a6bf669ab3e508db8f
SHA512

671ad96b321859f5411d9d2411ba58c6d0228517c931a4d7de41db753da07b782b5757de0018a5a5e99e30991dcd8cd442ceb630cd9ed64396bd432d2db120fc
SSDEEP

49152:sxX7665YxRVplZzSKntlGIiT+HvRdpcAHSjpjK3LBYB/bS:sxX7QnxrloE5dpUpzb

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\locdevbod.exe	2791c3d6968cc6953e6387838057a460N.exe

Executes dropped EXE 2 IoCs

pid	Process
2280	locdevbod.exe
3068	devoptiloc.exe

Loads dropped DLL 2 IoCs

pid	Process
2388	2791c3d6968cc6953e6387838057a460N.exe
2388	2791c3d6968cc6953e6387838057a460N.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-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\Parametr = "C:\\IntelprocVP\\devoptiloc.exe"	2791c3d6968cc6953e6387838057a460N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Parametr = "C:\\KaVBAQ\\optixsys.exe"	2791c3d6968cc6953e6387838057a460N.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	2791c3d6968cc6953e6387838057a460N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	locdevbod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	devoptiloc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2388	2791c3d6968cc6953e6387838057a460N.exe
2388	2791c3d6968cc6953e6387838057a460N.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe
2280	locdevbod.exe
3068	devoptiloc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2280	2388	2791c3d6968cc6953e6387838057a460N.exe	30
PID 2388 wrote to memory of 2280	2388	2791c3d6968cc6953e6387838057a460N.exe	30
PID 2388 wrote to memory of 2280	2388	2791c3d6968cc6953e6387838057a460N.exe	30
PID 2388 wrote to memory of 2280	2388	2791c3d6968cc6953e6387838057a460N.exe	30
PID 2388 wrote to memory of 3068	2388	2791c3d6968cc6953e6387838057a460N.exe	31
PID 2388 wrote to memory of 3068	2388	2791c3d6968cc6953e6387838057a460N.exe	31
PID 2388 wrote to memory of 3068	2388	2791c3d6968cc6953e6387838057a460N.exe	31
PID 2388 wrote to memory of 3068	2388	2791c3d6968cc6953e6387838057a460N.exe	31

C:\Users\Admin\AppData\Local\Temp\2791c3d6968cc6953e6387838057a460N.exe
"C:\Users\Admin\AppData\Local\Temp\2791c3d6968cc6953e6387838057a460N.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:2388
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\locdevbod.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\locdevbod.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2280
- C:\IntelprocVP\devoptiloc.exe
  C:\IntelprocVP\devoptiloc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3068

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:\IntelprocVP\devoptiloc.exe

Filesize
2.6MB

MD5
8308d972f854c3e84cabdee723bf41d7

SHA1
6d7cbae2dc267c35d4a031255726b4be83ca099c

SHA256
06a7f826708c08be7e11da02b5da232e8d2c82697b57412f929623a59f43534d

SHA512
ae50fc55dc5f1fd11237bf9e73b5ee4d20b3d56f56a58aa449192bbc540af081dc35a736317926ad157cc763aa82823d095cd2aa904eb522e4fc590b8c1b7d53

Download Submit
C:\KaVBAQ\optixsys.exe

Filesize
2.6MB

MD5
f63e78f49205480bb0f9f3df16cf164f

SHA1
4345e1f9dc12e2a3c0d6439d5799b1a4ffccbaa0

SHA256
f7e6431852ce466fe0733f6858c98b08b7aa5ffecddbc036e041e26ec666fdd5

SHA512
fd777f41a78fa3c1a4b2e07c40b34c9c0af4493bccfa7a8547cae0c0688d7a06ec279faadfcb0d45eb03720005ac87a3927f7d043f0fc99778141b235549e9c9

Download Submit
C:\KaVBAQ\optixsys.exe

Filesize
2.6MB

MD5
e3c131ee7273b48165ee0aa1686d9cd2

SHA1
9eb22f247d1b2e7c6128a13b021d512a617d4b40

SHA256
845570baf090f95bef06a31f840e45557717e715a4035f6c72a3dcc6bd4df0c2

SHA512
6b1ac8ea5f5b9726dc703a0fb66041211d9ca73570511e574de6e9dfd47f9474f02022ccf97ec0c5976bbcca1c6adc082de267c25b033615265eb1ce33082ad4

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

Filesize
178B

MD5
3a71fbd39e52551bc60b8d087f7ab936

SHA1
e720fabcfce54993ba0f5c69cddc6d6b320730a2

SHA256
b5c8f050329167c0629cceeaa4edda5fb60be02d745d19b69ab9debe6caed367

SHA512
b05ced641f0d39c2549a493e72d55152275e41bec3414d37a3680516a5350cda79b6a01f75cc5afdc3fe20c92d945eb59814cccb7e8dfe09e0a20e570a6b2b25

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

Filesize
210B

MD5
d0e4d3eb8cee01b31afec00713065b48

SHA1
65395609f41710217632b53bbfcf550f7106b8a6

SHA256
1ba140c5859cb033b1db3d8a2dbd8b695396d6bfdbcc9046479d580d049008ba

SHA512
630a11f35331efcb4a855bf15919804a315134c8d02748492852572f08071d64c2f6660f2dfa84f585361a47d80dd4ac3b7fe6e53ba60fa5581a4464a90f8255

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

Filesize
2.6MB

MD5
01c1b5e27b646250f52200079ffbae18

SHA1
73db4c386086e1e2ec62648136e4f793e5a8b07d

SHA256
7183ce9b7c20ba7e4dfca2ed349055c23c2c3de05efcc917fa2ad9720e92bcf6

SHA512
38197b811b927ee1f79e11fe33921d17c026da890cac8b379aa1b03de11fe27eebb701d7c25a64393f07914af7e38519f337cec86162808a6959a4990933d7ac

Download Submit