cryptbot | 4e639256d9f94d26c3f59580d36059b0aa50e83e611e559a695a9d03a4237749

General

Target

4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe
Size

6.3MB
MD5

5e8fec7f2f2102b5dcd44c061f3197fc
SHA1

3d8f67a861dd144b6dba216db88012ee62aed4a6
SHA256

4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6
SHA512

0aafde8e576e305c9d8a61af774235ff32e769270971e66b9cc6cce9ac4dccf1f4434cf1f63b0801beb8a271877d89ccd3b58e6c899d9fae17a6e9c19798ca08
SSDEEP

49152:odrAjDR10enDYGCPX544IvBqkqoO65ia6sC9TNpWG2ifvEcsUVlWOeXH3HUkRNdl:ooMenDOPX5JIvP7O65wsCN

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
behavioral1/memory/2860-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp	family_cryptbot_v3

Executes dropped EXE 2 IoCs

pid	Process
664	service123.exe
1200	service123.exe

Loads dropped DLL 4 IoCs

pid	Process
2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe
2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe
664	service123.exe
1200	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	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.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	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.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
1484	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 664	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	31
PID 2860 wrote to memory of 664	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	31
PID 2860 wrote to memory of 664	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	31
PID 2860 wrote to memory of 664	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	31
PID 2860 wrote to memory of 1484	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	32
PID 2860 wrote to memory of 1484	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	32
PID 2860 wrote to memory of 1484	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	32
PID 2860 wrote to memory of 1484	2860	4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe	32
PID 2500 wrote to memory of 1200	2500	taskeng.exe	35
PID 2500 wrote to memory of 1200	2500	taskeng.exe	35
PID 2500 wrote to memory of 1200	2500	taskeng.exe	35
PID 2500 wrote to memory of 1200	2500	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe
"C:\Users\Admin\AppData\Local\Temp\4caa926d2422c584f16a4373daea24880fbd08a7baf3c9214421281965f89ec6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  "C:\Users\Admin\AppData\Local\Temp\service123.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:664
- 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:1484

C:\Windows\system32\taskeng.exe
taskeng.exe {591C05CD-C6B6-4219-AAF6-C06A92A56B68} S-1-5-21-1488793075-819845221-1497111674-1000:UPNECVIU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1200

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/664-30-0x0000000000090000-0x00000000000A2000-memory.dmp

Filesize
72KB

Download
memory/664-31-0x0000000074B90000-0x0000000074CC4000-memory.dmp

Filesize
1.2MB

Download
memory/1200-37-0x0000000000090000-0x00000000000A2000-memory.dmp

Filesize
72KB

Download
memory/2860-0-0x0000000069CC0000-0x000000006A37B000-memory.dmp

Filesize
6.7MB

Download
memory/2860-9-0x0000000000D10000-0x0000000001357000-memory.dmp

Filesize
6.3MB

Download
memory/2860-28-0x0000000000D10000-0x0000000001357000-memory.dmp

Filesize
6.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads