cryptbot | 8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a

General

Target

file.exe
Size

6.3MB
MD5

bfe2f72aaf59ad12fe5479d4936d9d52
SHA1

1eb38144e825af65babd0f1e5651f74123413c93
SHA256

8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a
SHA512

e1e070feec3cc1ef4506976d6c839564f9a2487fbdfeb77c29027c3c0634f8990f3e48aba0560030e8f823ee48ca2055f16256d1d87e68b565dd8bbfcc4bdba7
SSDEEP

49152:YxnRxBWUDgOXOVviT4teSK+T/8zkSJUosljJs0Rr4IwEZJumWu/Po8MIBZO+LnX9:C7k0uKT4teSxb8zxGH1JsY

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Signatures

CryptBot
CryptBot is a C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot

Detects CryptBot payload 1 IoCs

CryptBot is a C++ stealer distributed widely in bundle with other software.

spyware stealer

Processes:

resource	yara_rule
behavioral2/memory/4728-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp	family_cryptbot_v3

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

file.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	file.exe

Executes dropped EXE 2 IoCs

Processes:

service123.exeservice123.exe

pid	Process
4580	service123.exe
3532	service123.exe

Loads dropped DLL 2 IoCs

Processes:

service123.exeservice123.exe

pid	Process
4580	service123.exe
3532	service123.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

file.exeservice123.exeschtasks.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service123.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

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

Processes:

file.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	file.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	file.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
4896	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	Process	procid_target
PID 4728 wrote to memory of 4580	4728	file.exe	97
PID 4728 wrote to memory of 4580	4728	file.exe	97
PID 4728 wrote to memory of 4580	4728	file.exe	97
PID 4728 wrote to memory of 4896	4728	file.exe	98
PID 4728 wrote to memory of 4896	4728	file.exe	98
PID 4728 wrote to memory of 4896	4728	file.exe	98

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4580
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4896

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/3532-38-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download
memory/4580-26-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download
memory/4580-27-0x00000000759C0000-0x0000000075AF4000-memory.dmp

Filesize
1.2MB

Download
memory/4728-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

Filesize
6.7MB

Download
memory/4728-9-0x00000000001E0000-0x000000000083A000-memory.dmp

Filesize
6.4MB

Download
memory/4728-24-0x00000000001E0000-0x000000000083A000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads