stealc | 709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc

General

Target

709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe
Size

2.4MB
MD5

43c78cc0db1f316dd7a8aa93519d295b
SHA1

100b7b134fe39fc96a1e5ee73a6e054ec2e3d168
SHA256

709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc
SHA512

1041e7f0364debc607ee02e8c6cbbe11ad52d6278910c95293adda74b0576275d70cc5a332d77c76f280b8ef0086f36a69226852fca49587a94339e1b986d525
SSDEEP

49152:jxIRJF1HL+VdX68kUyJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dytIuoITsdZ

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

Detect Vidar Stealer 9 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/3304-2-0x00000000041D0000-0x0000000004319000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-9-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-15-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-29-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-46-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/2900-47-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

kat44AA.tmp

pid process

2900 kat44AA.tmp
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
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

pid	process
2900	kat44AA.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe

description	pid	process	target process
PID 3304 set thread context of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp

Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

kat44AA.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat44AA.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat44AA.tmp

pid process

2900 kat44AA.tmp
2900 kat44AA.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat44AA.tmp

pid	process
2900	kat44AA.tmp
2900	kat44AA.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe

description	pid	process	target process
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp
PID 3304 wrote to memory of 2900	3304	709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe	kat44AA.tmp

C:\Users\Admin\AppData\Local\Temp\709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe
"C:\Users\Admin\AppData\Local\Temp\709ce02f92a54505c17b9539101e19a61a782e53e0cc0fe3539ee78d6fca9ebc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3304

C:\Users\Admin\AppData\Local\Temp\kat44AA.tmp
C:\Users\Admin\AppData\Local\Temp\kat44AA.tmp
2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat44AA.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/2900-29-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-9-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-15-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-28-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-31-0x000000001B7B0000-0x000000001BA0F000-memory.dmp

Filesize
2.4MB

Download
memory/2900-46-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2900-47-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/3304-10-0x0000000000400000-0x0000000000678000-memory.dmp

Filesize
2.5MB

Download
memory/3304-2-0x00000000041D0000-0x0000000004319000-memory.dmp

Filesize
1.3MB

Download
memory/3304-0-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads