stealc | d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd

General

Target

d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe
Size

1.8MB
MD5

770f685a794ace1c2ee0aec6412db7e6
SHA1

171480e9a385da41fd9e7fea43fe3a810734020c
SHA256

d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd
SHA512

6710e0e68f3a9c3a42e69d2d7a64e0d64aa8f93e81733717c88ea968454445ce99f5240cc6d61f66289e47333cf0fc19e2b6cc99db064d853093425021686e0a
SSDEEP

24576:l6z6AnPq5iak02HkyYaOV+rEfv0xwT3zxNOt4XigDSCuptNIeUaKUqm1zE:wer5l4kyYa8aesY3Ot4N7G/IeUAtK

Score

10^/10

stealc vidar discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

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

resource	yara_rule
behavioral1/memory/4856-1-0x0000000002AE0000-0x0000000002C2B000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-13-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-14-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-31-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/4376-32-0x0000000000400000-0x0000000000648000-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

pid	Process
4376	kat5AD2.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4856 set thread context of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat5AD2.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4376	kat5AD2.tmp
4376	kat5AD2.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90
PID 4856 wrote to memory of 4376	4856	d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe	90

C:\Users\Admin\AppData\Local\Temp\d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe
"C:\Users\Admin\AppData\Local\Temp\d2dce947bb1e96f20c2c0d5575ae8a2046ef22f04469bc6f16ee866e1f2eaadd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Users\Admin\AppData\Local\Temp\kat5AD2.tmp
  C:\Users\Admin\AppData\Local\Temp\kat5AD2.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4376

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\kat5AD2.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/4376-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-13-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-14-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-16-0x000000001B740000-0x000000001B99F000-memory.dmp

Filesize
2.4MB

Download
memory/4376-31-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4376-32-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/4856-0-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/4856-1-0x0000000002AE0000-0x0000000002C2B000-memory.dmp

Filesize
1.3MB

Download
memory/4856-9-0x0000000000400000-0x00000000005C8000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads