cryptbot | 39ef51afa4b5a9f930af06bcb4bdf50e289b522c40888ff3015d9486b8b4cdcf

General

Target
channel3.exe
Size 6.3MB
Sample240923-ww3dvazdmc
SHA256 39ef51afa4b5a9f930af06bcb4bdf50e289b522c40888ff3015d9486b8b4cdcf
MD5 d048c147fe730a77e30b2efd85ebfe97
SHA1 febf2874b6fdc8a8fa7db8c524fe9d733cf6145b
SHA512 f8f4830ff39cbcc3952a319fd4307c2f6bf268851f3f0cfa85af4071204232b196688eb3c91aff2b5982a368500b86092ce408a147f218264705dbf08f70c237
SSDEEP 98304:lLUGDK7kAZy3uo4AHV1Cs/6q+l35ZgqOM0E:vO7kQyeoBfxs+M0E
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

thirtvf13vs.top
analforeverlovyu.top

Attributes

url_path
/v1/upload.php

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	channel3.exe

Executes dropped EXE 3 IoCs

pid	Process
2592	service123.exe
3320	service123.exe
1412	service123.exe

Loads dropped DLL 3 IoCs

pid	Process
2592	service123.exe
3320	service123.exe
1412	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	channel3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	service123.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	channel3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	channel3.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

pid	Process
1832	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 2592	1208	channel3.exe	89
PID 1208 wrote to memory of 2592	1208	channel3.exe	89
PID 1208 wrote to memory of 2592	1208	channel3.exe	89
PID 1208 wrote to memory of 1832	1208	channel3.exe	91
PID 1208 wrote to memory of 1832	1208	channel3.exe	91
PID 1208 wrote to memory of 1832	1208	channel3.exe	91

C:\Users\Admin\AppData\Local\Temp\channel3.exe
"C:\Users\Admin\AppData\Local\Temp\channel3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1208
- 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:2592
- 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:1832

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3320

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1412