gurcu | 645e274fec3723d065308f9b16b33392ed7f51fbd5ffc3c00806c2efafb08b65

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
19-07-2024 11:34

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General

Target

Start.exe
Size

301KB
MD5

9a0e31ffbe7ecc3a2a6f968b2a8d5567
SHA1

e88e76fe96616649d2558923afe457ce3b1976ec
SHA256

b371eae7b55688d307b653759c2d4ddfe3672eb7b5567bcfa9c3f75f5c6d6255
SHA512

db64b27997e5305473572ee8a60573032e51fbfbdc48670d9adef8ba23c81e8845d073383299c94f87a0100c74ca0e6968b9f468fc46e31e221a71ad69a32749
SSDEEP

6144:S1eFfHQTBVVzJxmKg/R3xNJyZsMoONeL1Ip4w3qm:gPBV9JxmKE7JfVONUGqm

Score

10^/10

gurcu redline infostealer stealer

Malware Config

Extracted

Family

redline

65.108.29.210:21638

Attributes

auth_value
ad39d6a8ea7823f2a92f57ebaa4c98a5

Signatures

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
behavioral4/memory/4064-8-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4836 set thread context of 4064	4836	Start.exe	87

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	Start.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Start.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4064	Start.exe
4064	Start.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4064	Start.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87
PID 4836 wrote to memory of 4064	4836	Start.exe	87

C:\Users\Admin\AppData\Local\Temp\Start.exe
"C:\Users\Admin\AppData\Local\Temp\Start.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Users\Admin\AppData\Local\Temp\Start.exe
  "C:\Users\Admin\AppData\Local\Temp\Start.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4064

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1KB

MD5
b5291f3dcf2c13784e09a057f2e43d13

SHA1
fbb72f4b04269e0d35b1d9c29d02d63dbc7ad07e

SHA256
ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce

SHA512
11c89caac425bccaa24e2bb24c6f2b4e6d6863278bf8a5304a42bb44475b08ca586e09143e7d5b14db7f1cd9adacd5358769e0d999dc348073431031067bd4d4

Download Submit
memory/4064-16-0x0000000005F50000-0x0000000005F62000-memory.dmp

Filesize
72KB

Download
memory/4064-15-0x00000000064F0000-0x0000000006B08000-memory.dmp

Filesize
6.1MB

Download
memory/4064-11-0x0000000005160000-0x00000000051C6000-memory.dmp

Filesize
408KB

Download
memory/4064-19-0x0000000006000000-0x000000000604C000-memory.dmp

Filesize
304KB

Download
memory/4064-18-0x0000000005FC0000-0x0000000005FFC000-memory.dmp

Filesize
240KB

Download
memory/4064-17-0x0000000006080000-0x000000000618A000-memory.dmp

Filesize
1.0MB

Download
memory/4064-14-0x00000000745C0000-0x0000000074D70000-memory.dmp

Filesize
7.7MB

Download
memory/4064-8-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4064-12-0x00000000745C0000-0x0000000074D70000-memory.dmp

Filesize
7.7MB

Download
memory/4064-20-0x00000000745C0000-0x0000000074D70000-memory.dmp

Filesize
7.7MB

Download
memory/4836-13-0x00000000745C0000-0x0000000074D70000-memory.dmp

Filesize
7.7MB

Download
memory/4836-3-0x0000000004C10000-0x0000000004CA2000-memory.dmp

Filesize
584KB

Download
memory/4836-7-0x0000000004DF0000-0x0000000004E0E000-memory.dmp

Filesize
120KB

Download
memory/4836-2-0x0000000005120000-0x00000000056C4000-memory.dmp

Filesize
5.6MB

Download
memory/4836-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

Filesize
4KB

Download
memory/4836-6-0x0000000004FB0000-0x0000000005026000-memory.dmp

Filesize
472KB

Download
memory/4836-5-0x0000000004BC0000-0x0000000004BCA000-memory.dmp

Filesize
40KB

Download
memory/4836-4-0x00000000745C0000-0x0000000074D70000-memory.dmp

Filesize
7.7MB

Download
memory/4836-1-0x0000000000170000-0x00000000001C0000-memory.dmp

Filesize
320KB

Download