cryptbot | a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610

General

Target

a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe
Size

6.4MB
MD5

af196dcc95170ab54860051830a7d587
SHA1

9fecb3cfb22a2717c5f0424aa7c197d0ab80c365
SHA256

a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610
SHA512

e985bdc5722c415e6d80abb4acdefb55693e79566062f83c9137b8e3db2813b95d33c6da12259667182e94d5198095703e8b57083872c997f8ea932cd3fc40ab
SSDEEP

98304:Aevoj/6GK58KRA6t5oHkokMCtQYGDOdA8RcWwlLQmjnAoX:AwojiGK58+A6tyHkokjlb+LnjAoX

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

fivevf5vs.top

Attributes

url_path
/v1/upload.php

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2624	service123.exe
2848	service123.exe
1652	service123.exe

Loads dropped DLL 5 IoCs

pid	Process
1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe
1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe
2624	service123.exe
2848	service123.exe
1652	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.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	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.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
2700	schtasks.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 2624	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	30
PID 1504 wrote to memory of 2624	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	30
PID 1504 wrote to memory of 2624	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	30
PID 1504 wrote to memory of 2624	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	30
PID 1504 wrote to memory of 2700	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	31
PID 1504 wrote to memory of 2700	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	31
PID 1504 wrote to memory of 2700	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	31
PID 1504 wrote to memory of 2700	1504	a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe	31
PID 1988 wrote to memory of 2848	1988	taskeng.exe	34
PID 1988 wrote to memory of 2848	1988	taskeng.exe	34
PID 1988 wrote to memory of 2848	1988	taskeng.exe	34
PID 1988 wrote to memory of 2848	1988	taskeng.exe	34
PID 1988 wrote to memory of 1652	1988	taskeng.exe	35
PID 1988 wrote to memory of 1652	1988	taskeng.exe	35
PID 1988 wrote to memory of 1652	1988	taskeng.exe	35
PID 1988 wrote to memory of 1652	1988	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe
"C:\Users\Admin\AppData\Local\Temp\a8a451b18143b192de1f6da327400e4fe0b629386d0c9dbf0d77e002e8ca6610.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2624
- 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:2700

C:\Windows\system32\taskeng.exe
taskeng.exe {737AD9AB-FFC9-422D-A341-0D81322C7241} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2848
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1652

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/1504-0-0x0000000000400000-0x000000000106F000-memory.dmp

Filesize
12.4MB

Download
memory/1504-1-0x0000000000400000-0x000000000106F000-memory.dmp

Filesize
12.4MB

Download
memory/1504-14-0x0000000000400000-0x000000000106F000-memory.dmp

Filesize
12.4MB

Download
memory/1652-44-0x00000000010B0000-0x00000000010C1000-memory.dmp

Filesize
68KB

Download
memory/2624-16-0x00000000010B0000-0x00000000010C1000-memory.dmp

Filesize
68KB

Download
memory/2624-17-0x0000000075340000-0x000000007547C000-memory.dmp

Filesize
1.2MB

Download
memory/2848-29-0x00000000010B0000-0x00000000010C1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads