cryptbot | 4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3

General

Target
4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe
Size 6.4MB
Sample240906-wbas4azckm
SHA256 4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3
MD5 3d1a9c6cc39f62d16e607e3024c34945
SHA1 980dfcb714b0de1470f94e243af75811d0fb4552
SHA512 8f30abba9f60200fd1695d2ccbf24f54652f27cf6a522cf58e003baea0c8f1e7c22112570ce34545ca61418b093d642804f9bc0dc570176d55194eddc0fd25dc
SSDEEP 98304:yuEL8PrbbdWhkhysgPMQtupecLz8K9U4J+x3lDO2Nh5:yuO8PrbbiH9OAK9XJAD3h5
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

cryptbot credential_access discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

tventyv20pt.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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe

Executes dropped EXE 2 IoCs

pid	Process
2832	service123.exe
1028	service123.exe

Loads dropped DLL 2 IoCs

pid	Process
2832	service123.exe
1028	service123.exe

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
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	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.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
2988	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 2832	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	97
PID 4028 wrote to memory of 2832	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	97
PID 4028 wrote to memory of 2832	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	97
PID 4028 wrote to memory of 2988	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	98
PID 4028 wrote to memory of 2988	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	98
PID 4028 wrote to memory of 2988	4028	4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe	98

C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe
"C:\Users\Admin\AppData\Local\Temp\4a5a3e78f26afc3439ad4c1f5245353f5cb429355471d025919435c06af89ac3.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:4028
- 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:2832
- 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:2988

C:\Users\Admin\AppData\Local\Temp\service123.exe
C:\Users\Admin\AppData\Local\Temp\/service123.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1028