cryptbot | b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632

Analysis

max time kernel
141s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
30-01-2025 21:46

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General

Target

b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe
Size

3.2MB
MD5

367d6d7210344d513037c0d9ad6c1094
SHA1

e562cd450ea66a3703d77d4c0bf332bf934d7113
SHA256

b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632
SHA512

73c1a7b7e224eaee94212c8ec1fa2a3bc0ccc474aaf71720d1dcb75564edde244efec7055ee35aab7e64197fbc9c063ab1a7d08bf0625fcda06f6dd361347dad
SSDEEP

98304:ZsjlFDYPY3lEpOBunjPTgO2WDg2STyH7eaoN14:GFD/2jPTUWfSObeRN14

Score

10^/10

cryptbot defense_evasion discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

Signatures

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

Enumerates VirtualBox registry keys 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	VC_redist.x64.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1412605595-2147700071-3468511006-1000\Control Panel\International\Geo\Nation	b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe

Executes dropped EXE 1 IoCs

pid	Process
2136	VC_redist.x64.exe

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

Embeds OpenSSL 1 IoCs

Embeds OpenSSL, may be used to circumvent TLS interception.

resource	yara_rule
behavioral2/files/0x0007000000023cb0-6.dat	embeds_openssl

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	b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VC_redist.x64.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe
2136	VC_redist.x64.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1920 wrote to memory of 2136	1920	b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe	86
PID 1920 wrote to memory of 2136	1920	b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe	86
PID 1920 wrote to memory of 2136	1920	b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe	86

C:\Users\Admin\AppData\Local\Temp\b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe
"C:\Users\Admin\AppData\Local\Temp\b4de967276c1b66e49f92d673b4a627294bd16709c50ee8372aaf7b5d67ad632.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1920
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe"
  2⤵
  - Enumerates VirtualBox registry keys
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x64.exe

Filesize
6.8MB

MD5
fbfb9312d141e6fd7150aacfa0c97aea

SHA1
e90711de017229ece005bed1bbf83d269170da9e

SHA256
f48bae1967d341dd1991b743ebffb544ef019e999786bb02abbee08512475d1a

SHA512
86ec6a2433a26ae534896552488041ad33828dd700c42342d9a3b5f7ca1eafa45b85a5d9e6de9bf4ca4463fd2979ec380fd7d58d085fa3e38e2a656a74d6a12e

Download Submit
memory/2136-11-0x0000000000B70000-0x000000000124C000-memory.dmp

Filesize
6.9MB

Download
memory/2136-19-0x0000000000B70000-0x000000000124C000-memory.dmp

Filesize
6.9MB

Download