gurcu | e58cb8b55304f2876a1729392db11b4e1355e5d83053a0304c4a3a2b856c8711

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 22:35

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General

Target

7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe
Size

525KB
MD5

72f4779d8e2878b5aefb4fca91c7c5b0
SHA1

4e0f9241f97c23826df34033cea94dec5ab88537
SHA256

7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87
SHA512

3013961da312c17879dd4da117f1724679c6cd1a3ceac03f5a73cbe950d03b68f10281011bf7a91fe6356aea9fb358289a4e533ba79306a89b6e6a3427ee6f8c
SSDEEP

12288:io5TScB4FHQ6eem6Inp5LQtCVG8jETBAa:iI41QDehIp6YgJua

Score

10^/10

gurcu redline discovery infostealer stealer

Malware Config

Extracted

Family

redline

185.215.113.57:50723

Attributes

auth_value
3f48b95855158031ae9e7dafcb203009

Signatures

Gurcu family
gurcu
Gurcu, WhiteSnake
Gurcu is a malware stealer written in C#.
stealer gurcu
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine payload 1 IoCs

resource	yara_rule
behavioral2/memory/1836-5-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline

Redline family
redline

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2544 set thread context of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86

System Location Discovery: System Language Discovery 1 TTPs 1 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	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1836	RegAsm.exe
1836	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86
PID 2544 wrote to memory of 1836	2544	7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe	86

C:\Users\Admin\AppData\Local\Temp\7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe
"C:\Users\Admin\AppData\Local\Temp\7439282561b643dcb5665f12eda9805f6f240a9e8e62f9655f17c77845f79f87.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  #cmd
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1836-5-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1836-8-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/1836-9-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/2544-0-0x00007FF847423000-0x00007FF847425000-memory.dmp

Filesize
8KB

Download
memory/2544-1-0x0000000000E20000-0x0000000000EA8000-memory.dmp

Filesize
544KB

Download
memory/2544-2-0x000000001BD60000-0x000000001BDD6000-memory.dmp

Filesize
472KB

Download
memory/2544-3-0x00007FF847420000-0x00007FF847EE1000-memory.dmp

Filesize
10.8MB

Download
memory/2544-4-0x00000000030C0000-0x00000000030DE000-memory.dmp

Filesize
120KB

Download
memory/2544-7-0x00007FF847420000-0x00007FF847EE1000-memory.dmp

Filesize
10.8MB

Download