stealc | 7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16

General

Target

7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe
Size

2.0MB
MD5

254c7d3232f05ea3a9184c604130daeb
SHA1

120e16e21a855f3a1bad97ad6a44ad0d81bc4548
SHA256

7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16
SHA512

5c9adb149ffe2b3cd6ba47f8c03698530d0fb10c2ea867fda763222ab99be7c68154d256919c8fa1010daa30061be536f1a88b1580d9806b8ea382f6d690c238
SSDEEP

49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ

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 8 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/2096-1-0x00000000040B0000-0x00000000041F9000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-4-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-8-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-10-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-19-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-20-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-37-0x0000000000400000-0x0000000000646000-memory.dmp	family_vidar_v7
behavioral2/memory/1916-38-0x0000000000400000-0x0000000000646000-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:

kat5544.tmp

pid process

1916 kat5544.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
1916	kat5544.tmp

Suspicious use of SetThreadContext 1 IoCs

Processes:

7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe

description	pid	process	target process
PID 2096 set thread context of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.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:

kat5544.tmp

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5544.tmp
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat5544.tmp

pid process

1916 kat5544.tmp
1916 kat5544.tmp

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat5544.tmp

pid	process
1916	kat5544.tmp
1916	kat5544.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe

description	pid	process	target process
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp
PID 2096 wrote to memory of 1916	2096	7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe	kat5544.tmp

C:\Users\Admin\AppData\Local\Temp\7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe
"C:\Users\Admin\AppData\Local\Temp\7112eea3244ef2d633457c33d623a38017c06c27e09d94e75a3db4c53a30ed16.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Users\Admin\AppData\Local\Temp\kat5544.tmp
  C:\Users\Admin\AppData\Local\Temp\kat5544.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1916

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\kat5544.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1916-4-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-8-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-10-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-19-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-20-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-22-0x00000000260A0000-0x00000000262FF000-memory.dmp

Filesize
2.4MB

Download
memory/1916-37-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/1916-38-0x0000000000400000-0x0000000000646000-memory.dmp

Filesize
2.3MB

Download
memory/2096-0-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/2096-1-0x00000000040B0000-0x00000000041F9000-memory.dmp

Filesize
1.3MB

Download
memory/2096-9-0x0000000000400000-0x0000000000612000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads