Malware Analysis Report

2024-10-23 19:17

Sample ID 230526-vet6gagh8x
Target b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e
SHA256 b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e
Tags
gurcu spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e

Threat Level: Known bad

The file b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e was found to be: Known bad.

Malicious Activity Summary

gurcu spyware stealer

Gurcu, WhiteSnake

Reads user/profile data of web browsers

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-26 16:54

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-26 16:54

Reported

2023-05-26 16:57

Platform

win10v2004-20230220-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe"

Signatures

Gurcu, WhiteSnake

stealer gurcu

Reads user/profile data of web browsers

spyware stealer

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4268 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3600 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe
PID 4268 wrote to memory of 3088 N/A C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe

"C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe"

C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe

"C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe"

C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe

"C:\Users\Admin\AppData\Local\Temp\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3088 -ip 3088

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2568

Network

Country Destination Domain Proto
US 8.8.8.8:53 226.101.242.52.in-addr.arpa udp
US 52.242.97.97:443 tcp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 126.20.238.8.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 52.242.101.226:443 tcp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 20.42.65.88:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 cyware.com udp
US 8.8.8.8:53 google.kz udp
US 8.8.8.8:53 twitter.com udp
US 3.33.180.61:80 cyware.com tcp
NL 142.250.179.132:80 google.kz tcp
US 3.33.180.61:80 cyware.com tcp
NL 142.250.179.132:80 google.kz tcp
US 104.244.42.65:80 twitter.com tcp
US 8.8.8.8:53 61.180.33.3.in-addr.arpa udp
US 8.8.8.8:53 132.179.250.142.in-addr.arpa udp
US 3.33.180.61:443 cyware.com tcp
US 3.33.180.61:443 cyware.com tcp
US 104.244.42.65:443 twitter.com tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 65.42.244.104.in-addr.arpa udp
US 8.8.8.8:53 44.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 8.9.0.a.e.e.f.b.0.0.0.0.0.0.0.0.5.0.0.0.0.0.8.0.0.3.0.1.3.0.6.2.ip6.arpa udp
US 52.242.101.226:443 tcp
US 93.184.221.240:80 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp
US 52.242.101.226:443 tcp

Files

memory/4268-133-0x0000000000DA0000-0x0000000000E76000-memory.dmp

memory/4268-134-0x0000000005EE0000-0x0000000006484000-memory.dmp

memory/4268-135-0x0000000005820000-0x00000000058B2000-memory.dmp

memory/4268-136-0x0000000005D80000-0x0000000005D8A000-memory.dmp

memory/4268-137-0x00000000033C0000-0x00000000033D0000-memory.dmp

memory/4268-138-0x00000000033C0000-0x00000000033D0000-memory.dmp

memory/4268-139-0x0000000009900000-0x000000000999C000-memory.dmp

memory/3088-140-0x0000000000400000-0x000000000045A000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e.exe.log

MD5 7cad59aef5a93f093b6ba494f13f796f
SHA1 3cef97b77939bfc06dfd3946fc1a8cd159f67100
SHA256 1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55
SHA512 8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

memory/3088-143-0x00000000059D0000-0x00000000059E0000-memory.dmp