stealc | dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730

General

Target

dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe
Size

2.1MB
MD5

c4bec5d4577ba541bbca18dd42d28301
SHA1

36df2db5159af4d9575ec1f237626838f505b24f
SHA256

dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730
SHA512

1a7bf2042d3e07b17de67b057313287fa5244ef659b4e7cfe9424490c4aa6038e1fe07e938355fb659d85abc43fcc3a64b27c3ab187c668ae3ce3d92337a77fb
SSDEEP

24576:Ub4m+sws1qLVNMIlJl6DRKbAlcNRfCKFUfMxVVtes12FxwojKr98YGeGG9iO:UZXOjt6DuAwCKFUkxVVChjHZQs

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/2440-2-0x0000000002A70000-0x0000000002B80000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-20-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-21-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-31-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1812-32-0x0000000000400000-0x0000000000648000-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
1812	katD570.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 2440 set thread context of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92

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	katD570.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1812	katD570.tmp
1812	katD570.tmp

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92
PID 2440 wrote to memory of 1812	2440	dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe	92

C:\Users\Admin\AppData\Local\Temp\dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe
"C:\Users\Admin\AppData\Local\Temp\dd0656cfec8f2a1424ed60350dddfb43bfd5dc1e0bb6f70a7b78aa8319d0f730.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\katD570.tmp
  C:\Users\Admin\AppData\Local\Temp\katD570.tmp
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:1812

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4440,i,8998666007764333392,14724298544432336038,262144 --variations-seed-version --mojo-platform-channel-handle=4132 /prefetch:8
1⤵
PID:4412

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\katD570.tmp

Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1812-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-20-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-21-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-23-0x000000001B7D0000-0x000000001BA2F000-memory.dmp

Filesize
2.4MB

Download
memory/1812-31-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1812-32-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2440-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/2440-2-0x0000000002A70000-0x0000000002B80000-memory.dmp

Filesize
1.1MB

Download
memory/2440-10-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads