cryptbot | 0b7c4304f5fcc82c469ad4fbdc29a67e1782e4ae1959f1059e418abf9fe86e6f

Analysis

max time kernel
146s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 15:20

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General

Target

cryptbot_v2/packed/de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe
Size

7.4MB
MD5

1dfa5cabbb5c455dda904e105036d336
SHA1

7fa8943b4527c0dd3b248c2eaf3cd325a5d6f336
SHA256

de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0
SHA512

1e84e56ba4d70d6d52a6e8626d858dce85eeae04a32b866f2386a5157c723ce7de087d2816a48063fd2bf65d794153d4a1cc34481911cd1af5ed8e9a8702715f
SSDEEP

49152:1WVbpyOxnK1M0s/9F7icYcaPrmbbTUC1PCWrbQoYQBRy+u2aXHMEUs9N+qaKDPT0:WK1D228KcbTU

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

resource	yara_rule
behavioral23/memory/2120-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp	family_cryptbot_v3

Executes dropped EXE 2 IoCs

pid	Process
2784	service123.exe
296	service123.exe

Loads dropped DLL 4 IoCs

pid	Process
2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe
2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe
2784	service123.exe
296	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	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.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
2624	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2784	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	31
PID 2120 wrote to memory of 2784	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	31
PID 2120 wrote to memory of 2784	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	31
PID 2120 wrote to memory of 2784	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	31
PID 2120 wrote to memory of 2624	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	32
PID 2120 wrote to memory of 2624	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	32
PID 2120 wrote to memory of 2624	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	32
PID 2120 wrote to memory of 2624	2120	de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe	32
PID 1980 wrote to memory of 296	1980	taskeng.exe	35
PID 1980 wrote to memory of 296	1980	taskeng.exe	35
PID 1980 wrote to memory of 296	1980	taskeng.exe	35
PID 1980 wrote to memory of 296	1980	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\cryptbot_v2\packed\de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe
"C:\Users\Admin\AppData\Local\Temp\cryptbot_v2\packed\de7158447b083712f9f261d481a3d942df8151565927b25923a1a3cfebb159a0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2784
- 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:2624

C:\Windows\system32\taskeng.exe
taskeng.exe {14DAA914-5D77-4403-BAA8-CE938FA80307} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1980
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/296-41-0x0000000000E60000-0x0000000000E72000-memory.dmp

Filesize
72KB

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memory/2120-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

Filesize
6.7MB

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memory/2120-9-0x0000000001120000-0x0000000001890000-memory.dmp

Filesize
7.4MB

Download
memory/2120-25-0x0000000001120000-0x0000000001890000-memory.dmp

Filesize
7.4MB

Download
memory/2784-28-0x0000000000E60000-0x0000000000E72000-memory.dmp

Filesize
72KB

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memory/2784-29-0x0000000074AB0000-0x0000000074BE4000-memory.dmp

Filesize
1.2MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads