cryptbot | d91a4c7b52c24bf96c67d9474256347efc8f855cf74406d139c73b39e2bcef74

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-en-20211104
submitted
03/12/2021, 07:37

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General

Target
261d1b66c29f8466a1ccaa7924f785ca.exe
Size 322KB
Sample211203-jftesaaec6
SHA256 d91a4c7b52c24bf96c67d9474256347efc8f855cf74406d139c73b39e2bcef74
MD5 261d1b66c29f8466a1ccaa7924f785ca
SHA1 fadc0f3f8078f394487a8f9b49deb8dcc340bffa
SHA512 c8e9869bcb5fde65b7382170e2cb16aaa0e789122ccac1a4d98cd174f54aab9724e9e16823702b9ee1a0515dc3c5c8f4e2695c7485863c50cb8ecf51a2fd5c92
MD5 SHA1 SHA512

Score

10^/10

cryptbot spyware stealer

Malware Config

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot

Deletes itself 1 IoCs

pid	Process
1476	cmd.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 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	261d1b66c29f8466a1ccaa7924f785ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	261d1b66c29f8466a1ccaa7924f785ca.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
576	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 1476	684	261d1b66c29f8466a1ccaa7924f785ca.exe	28
PID 684 wrote to memory of 1476	684	261d1b66c29f8466a1ccaa7924f785ca.exe	28
PID 684 wrote to memory of 1476	684	261d1b66c29f8466a1ccaa7924f785ca.exe	28
PID 684 wrote to memory of 1476	684	261d1b66c29f8466a1ccaa7924f785ca.exe	28
PID 1476 wrote to memory of 576	1476	cmd.exe	30
PID 1476 wrote to memory of 576	1476	cmd.exe	30
PID 1476 wrote to memory of 576	1476	cmd.exe	30
PID 1476 wrote to memory of 576	1476	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\261d1b66c29f8466a1ccaa7924f785ca.exe
"C:\Users\Admin\AppData\Local\Temp\261d1b66c29f8466a1ccaa7924f785ca.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\lUgPsqqgIYA & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\261d1b66c29f8466a1ccaa7924f785ca.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/684-55-0x0000000076761000-0x0000000076763000-memory.dmp

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memory/684-56-0x0000000000220000-0x0000000000245000-memory.dmp

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memory/684-57-0x00000000002A0000-0x00000000002E7000-memory.dmp

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memory/684-58-0x0000000000400000-0x0000000002B8A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads