Malware Analysis Report

2024-10-23 19:16

Sample ID 230701-g7t5aaff84
Target 1232exe.exe
SHA256 b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e
Tags
gurcu stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b6b0ac3d7e4ef3a97fb470b38e53f3d8114b736b60408d9828cd5f81e2d7cf0e

Threat Level: Known bad

The file 1232exe.exe was found to be: Known bad.

Malicious Activity Summary

gurcu stealer

Gurcu, WhiteSnake

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-07-01 06:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-01 06:27

Reported

2023-07-01 06:29

Platform

win7-20230621-en

Max time kernel

45s

Max time network

33s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 932 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1804 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1764 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1764 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1764 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1764 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1900 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1900 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1900 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1900 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 584 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe
PID 932 wrote to memory of 1160 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe

Processes

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

Network

N/A

Files

memory/932-54-0x00000000003F0000-0x00000000004C6000-memory.dmp

memory/932-55-0x0000000004A60000-0x0000000004AA0000-memory.dmp

memory/932-56-0x00000000004D0000-0x00000000004E0000-memory.dmp

memory/932-57-0x0000000004A60000-0x0000000004AA0000-memory.dmp

memory/932-58-0x00000000004E0000-0x00000000004EA000-memory.dmp

memory/932-59-0x0000000005230000-0x00000000052C0000-memory.dmp

memory/932-60-0x0000000005C30000-0x0000000005C8C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-01 06:27

Reported

2023-07-01 06:29

Platform

win10v2004-20230621-en

Max time kernel

127s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

Signatures

Gurcu, WhiteSnake

stealer gurcu

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3876 set thread context of 4380 N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\1232exe.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1232exe.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Users\Admin\AppData\Local\Temp\1232exe.exe

"C:\Users\Admin\AppData\Local\Temp\1232exe.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4380 -ip 4380

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 1760

Network

Country Destination Domain Proto
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 20.189.173.9:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
GB 96.16.110.41:443 tcp
US 8.8.8.8:53 64.13.109.52.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 160.252.72.23.in-addr.arpa udp

Files

memory/3876-133-0x0000000000450000-0x0000000000526000-memory.dmp

memory/3876-134-0x00000000055D0000-0x0000000005B74000-memory.dmp

memory/3876-135-0x0000000004F00000-0x0000000004F92000-memory.dmp

memory/3876-136-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

memory/3876-137-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

memory/3876-138-0x0000000004ED0000-0x0000000004EE0000-memory.dmp

memory/3876-139-0x0000000008EE0000-0x0000000008F7C000-memory.dmp

memory/4380-140-0x0000000000400000-0x000000000045A000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1232exe.exe.log

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

memory/4380-143-0x0000000005840000-0x0000000005850000-memory.dmp