cryptbot | 0b7c4304f5fcc82c469ad4fbdc29a67e1782e4ae1959f1059e418abf9fe86e6f

Resubmissions

23-10-2024 17:41

241023-v9kkhsvblp 10

23-10-2024 15:03

241023-sezpvayblp 10

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-10-2024 15:03

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General

Target

cryptbot_v2/packed/8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
Size

6.3MB
MD5

bfe2f72aaf59ad12fe5479d4936d9d52
SHA1

1eb38144e825af65babd0f1e5651f74123413c93
SHA256

8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a
SHA512

e1e070feec3cc1ef4506976d6c839564f9a2487fbdfeb77c29027c3c0634f8990f3e48aba0560030e8f823ee48ca2055f16256d1d87e68b565dd8bbfcc4bdba7
SSDEEP

49152:YxnRxBWUDgOXOVviT4teSK+T/8zkSJUosljJs0Rr4IwEZJumWu/Po8MIBZO+LnX9:C7k0uKT4teSxb8zxGH1JsY

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
behavioral13/memory/2520-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp	family_cryptbot_v3

Executes dropped EXE 2 IoCs

pid	Process
2860	service123.exe
2504	service123.exe

Loads dropped DLL 4 IoCs

pid	Process
2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
2860	service123.exe
2504	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	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.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	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.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
2900	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2860	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	31
PID 2520 wrote to memory of 2860	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	31
PID 2520 wrote to memory of 2860	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	31
PID 2520 wrote to memory of 2860	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	31
PID 2520 wrote to memory of 2900	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	32
PID 2520 wrote to memory of 2900	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	32
PID 2520 wrote to memory of 2900	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	32
PID 2520 wrote to memory of 2900	2520	8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe	32
PID 1444 wrote to memory of 2504	1444	taskeng.exe	35
PID 1444 wrote to memory of 2504	1444	taskeng.exe	35
PID 1444 wrote to memory of 2504	1444	taskeng.exe	35
PID 1444 wrote to memory of 2504	1444	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\cryptbot_v2\packed\8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe
"C:\Users\Admin\AppData\Local\Temp\cryptbot_v2\packed\8ad7c506b6c146384ab9b6effd12c9bd586518100e35c4fcb4744b40d10bf25a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2860
- 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:2900

C:\Windows\system32\taskeng.exe
taskeng.exe {4FBC6496-6FC2-49B5-9A63-AD087B4090CB} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1444
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2504

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/2504-40-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

Filesize
72KB

Download
memory/2520-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

Filesize
6.7MB

Download
memory/2520-9-0x0000000000DE0000-0x000000000143A000-memory.dmp

Filesize
6.4MB

Download
memory/2520-24-0x0000000000DE0000-0x000000000143A000-memory.dmp

Filesize
6.4MB

Download
memory/2860-27-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

Filesize
72KB

Download
memory/2860-28-0x0000000074DD0000-0x0000000074F04000-memory.dmp

Filesize
1.2MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads