b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b

Analysis

max time kernel
96s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12/09/2024, 00:51

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General

Target

b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
Size

17KB
MD5

ffe4c9fdf4309c84e2c574e059d45362
SHA1

bd8403556d7d2a061f33765d38af6e9baa539726
SHA256

b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b
SHA512

b97a54fb518403fcdf84ba3aa1e58b3b358046d92dc4c11b2d4fcd66f870544d2cce131021abbb3af652a5111c0c725b0a27dbd88165a1409550cceb05b0e39b
SSDEEP

192:WWj5dBkqyIfgm64++u6gzYMzZ0dqsEq65+O0I5L0pJ/WDvd0EtITbKH62RTs2/f+:WWjjfoQ+DfYMzKdPEsOuubuEG3KHM2/G

Score

7^/10

discovery persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3484	svhost.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winhost = "C:\\Windows\\svhost.exe"	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winhost = "C:\\Windows\\svhost.exe"	svhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svhost.exe	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
File created	C:\Windows\svhost.exe	svhost.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	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3720	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
Token: SeDebugPrivilege	3484	svhost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3720 wrote to memory of 3484	3720	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe	83
PID 3720 wrote to memory of 3484	3720	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe	83
PID 3720 wrote to memory of 3484	3720	b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe	83

C:\Users\Admin\AppData\Local\Temp\b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe
"C:\Users\Admin\AppData\Local\Temp\b4c8879ce5ac6c3c97838e6748c4e008bbc88d64395aca0279147ec2270f239b.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3720
- C:\Windows\svhost.exe
  "C:\Windows\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3484

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

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\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
339KB

MD5
ea1e47488871ae565e62ee1eac3dc0d1

SHA1
c54b2da4f4f06451e48179153e26dd2a210df31d

SHA256
02a3fc860e27a759d505f5b4032ad4be5b1313eb2453e40df95dfbba48adfa15

SHA512
af048f7a4e7c504b12f35b87dac8eb052570e5f1bd40f175b836f735783a5e90c3f4b2ae617311532a32fbf068a3077a142bee1074a6414198040e1b0e4d7a03

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C:\Users\Admin\AppData\Local\Temp\0YoavbZ5HpHFA2v.exe

Filesize
17KB

MD5
c001b684e132fe7bacc2774327d5c2ae

SHA1
f6d85425e476c4811a0b3fde4662f5c8de52b20d

SHA256
9e5c79c2a2c2268b6a113a634a37516d1de8adef9d2c3461ef41007d53bc5b0a

SHA512
b96fe0ad4ae8f71c4c181d6476cdf110b53f8d4f236b65efaa7ec2df2671b5ef90d199124794d83d999c324dedd677bdb812a146e4eb74e0a4a44d155f45742a

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C:\Windows\svhost.exe

Filesize
16KB

MD5
5e7c375139b7453abd0b91a8a220f8e5

SHA1
88a3d645fab0f4129c1e485c90b593ab60e469ae

SHA256
36ec99991653fa54be6f638d0b95eeac3e3f5e3006e4320318c4aa6fc2e330a8

SHA512
0805763fe788e0edeb69747d2f419842dc093c2d871d39f25afe2cd27867d54f90fa15892ff5e8c7148280c1ca9b90a0a375f56c277e5d442257c9e77295f1b2

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads