cryptbot | b2fdf16f56a53ec57134d20655a23d5919c022a97cf7da4087bd6bf9f3704bb6

Resubmissions

06-12-2022 13:52

221206-q6sdqsdc23 10

21-09-2022 08:18

220921-j7eqpsbdep 9

21-09-2022 07:05

220921-hwvr4sffe3 9

21-09-2022 05:39

220921-gca3xsahbn 9

Analysis

max time kernel
63s
max time network
54s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
06-12-2022 13:52

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General

Target

859c659aee8b897aeebf4b87364cc6d1.exe
Size

2.4MB
MD5

859c659aee8b897aeebf4b87364cc6d1
SHA1

c362e37f2a75447fe19eab90a6eba3dd3fa402e7
SHA256

b2fdf16f56a53ec57134d20655a23d5919c022a97cf7da4087bd6bf9f3704bb6
SHA512

b5a1ddf62be64eb5b58e674032884095e5a4ec190f4a8944e71efdc7f1faf57cfd5a9af7cd3d3040c1c3912ea4afafbfbea5cbe8532d5326f5c8d48f304a7ee6
SSDEEP

49152:d7BbOYaReQpAxY+TuQ/tymHRuKjQdT8K:nbOYakQpA++TuQ/tymHRumS

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

http://dixiel22.top/gate.php

Attributes

payload_url
http://lueink02.top/lutzen.dat

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1784 cmd.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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

pid	process
1784	cmd.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

859c659aee8b897aeebf4b87364cc6d1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	859c659aee8b897aeebf4b87364cc6d1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\ProductId	859c659aee8b897aeebf4b87364cc6d1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

859c659aee8b897aeebf4b87364cc6d1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	859c659aee8b897aeebf4b87364cc6d1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	859c659aee8b897aeebf4b87364cc6d1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	859c659aee8b897aeebf4b87364cc6d1.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1804 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

859c659aee8b897aeebf4b87364cc6d1.exe

pid process

1992 859c659aee8b897aeebf4b87364cc6d1.exe

pid	process
1804	timeout.exe

pid	process
1992	859c659aee8b897aeebf4b87364cc6d1.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

859c659aee8b897aeebf4b87364cc6d1.execmd.exe

description	pid	process	target process
PID 1992 wrote to memory of 1784	1992	859c659aee8b897aeebf4b87364cc6d1.exe	cmd.exe
PID 1992 wrote to memory of 1784	1992	859c659aee8b897aeebf4b87364cc6d1.exe	cmd.exe
PID 1992 wrote to memory of 1784	1992	859c659aee8b897aeebf4b87364cc6d1.exe	cmd.exe
PID 1992 wrote to memory of 1784	1992	859c659aee8b897aeebf4b87364cc6d1.exe	cmd.exe
PID 1784 wrote to memory of 1804	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1804	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1804	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1804	1784	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\859c659aee8b897aeebf4b87364cc6d1.exe
"C:\Users\Admin\AppData\Local\Temp\859c659aee8b897aeebf4b87364cc6d1.exe"
1⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout -t 5 && del "C:\Users\Admin\AppData\Local\Temp\859c659aee8b897aeebf4b87364cc6d1.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1784
- - C:\Windows\SysWOW64\timeout.exe
    timeout -t 5
    3⤵
    - Delays execution with timeout.exe
    PID:1804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1784-57-0x0000000000000000-mapping.dmp

Download
memory/1804-59-0x0000000000000000-mapping.dmp

Download
memory/1992-54-0x0000000076141000-0x0000000076143000-memory.dmp

Filesize
8KB

Download
memory/1992-55-0x0000000000480000-0x0000000000540000-memory.dmp

Filesize
768KB

Download
memory/1992-56-0x0000000000480000-0x0000000000540000-memory.dmp

Filesize
768KB

Download
memory/1992-58-0x0000000000480000-0x0000000000540000-memory.dmp

Filesize
768KB

Download