cryptbot | 277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758

General

Target

file.exe
Size

6.5MB
MD5

3394808f2d5c141b86e33a51ace8a577
SHA1

2bb0408fff0e02cbe8bd35cf0fe12e63d5bd08e1
SHA256

277eafa55c929bc4c805bd1d540d2385922ddcc26ad360af7b947987ca45e758
SHA512

b125c00020afdf9ea17f49e01120bafff27cd10752a018dcdf3d064fa371991654a18d86cbe1accbec67e3f05ff0d6d0b2f4237c093acea43cef4fd206b7ad6a
SSDEEP

49152:zX1kYWFZc6jmmW1RXZmRUd0/Gj4L1iNhQG3nHeSy/o+8k547W9UXwgZJ5hWGDPfk:zSzjmhasSGj4L0NhN3H1y/o+ZwW9

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
behavioral1/memory/2248-0-0x0000000069CC0000-0x000000006A377000-memory.dmp	family_cryptbot_v3

Executes dropped EXE 3 IoCs

Processes:

service123.exeservice123.exeservice123.exe

pid	Process
2580	service123.exe
2936	service123.exe
1960	service123.exe

Loads dropped DLL 5 IoCs

Processes:

file.exeservice123.exeservice123.exeservice123.exe

pid	Process
2248	file.exe
2248	file.exe
2580	service123.exe
2936	service123.exe
1960	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 2 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.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	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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	file.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	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
2612	schtasks.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

file.exetaskeng.exe

description	pid	Process	procid_target
PID 2248 wrote to memory of 2580	2248	file.exe	31
PID 2248 wrote to memory of 2580	2248	file.exe	31
PID 2248 wrote to memory of 2580	2248	file.exe	31
PID 2248 wrote to memory of 2580	2248	file.exe	31
PID 2248 wrote to memory of 2612	2248	file.exe	32
PID 2248 wrote to memory of 2612	2248	file.exe	32
PID 2248 wrote to memory of 2612	2248	file.exe	32
PID 2248 wrote to memory of 2612	2248	file.exe	32
PID 2660 wrote to memory of 2936	2660	taskeng.exe	35
PID 2660 wrote to memory of 2936	2660	taskeng.exe	35
PID 2660 wrote to memory of 2936	2660	taskeng.exe	35
PID 2660 wrote to memory of 2936	2660	taskeng.exe	35
PID 2660 wrote to memory of 1960	2660	taskeng.exe	36
PID 2660 wrote to memory of 1960	2660	taskeng.exe	36
PID 2660 wrote to memory of 1960	2660	taskeng.exe	36
PID 2660 wrote to memory of 1960	2660	taskeng.exe	36

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2580
- 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:2612

C:\Windows\system32\taskeng.exe
taskeng.exe {B9997810-734E-4263-8B6B-6E06AFDB831A} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2936
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1960

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

2

T1012

System Information Discovery

2

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/1960-46-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2248-0-0x0000000069CC0000-0x000000006A377000-memory.dmp

Filesize
6.7MB

Download
memory/2248-9-0x0000000000A50000-0x00000000010D5000-memory.dmp

Filesize
6.5MB

Download
memory/2248-22-0x0000000000A50000-0x00000000010D5000-memory.dmp

Filesize
6.5MB

Download
memory/2580-24-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download
memory/2580-25-0x0000000074790000-0x00000000748C4000-memory.dmp

Filesize
1.2MB

Download
memory/2936-31-0x00000000002A0000-0x00000000002B2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads