cryptbot | e72d6b4f1c18ed7ffe19bf0e029e0da687881e667a74b41f677ebc2dacc34d05

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-en-20211104
submitted
05-12-2021 10:54

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General

Target

7746ec6e55dc1957a3de5189bde4cdd4.exe
Size

392KB
MD5

7746ec6e55dc1957a3de5189bde4cdd4
SHA1

f6aeba8f808a16d05cb763389e2f8b40301cc45f
SHA256

e72d6b4f1c18ed7ffe19bf0e029e0da687881e667a74b41f677ebc2dacc34d05
SHA512

67e2bc366aac0b6cbe8085b9abb3266d9d09ec0583d0bd451511528421900b36b6bbb30f6d1ced29b1205369d9b55d41b03acc0e2be196ed6badae3acb5eb6a0

Score

10^/10

cryptbot spyware stealer

Malware Config

Extracted

Family

cryptbot

unic15m.top

unic15e.top

Signatures

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

Deletes itself 1 IoCs

pid	Process
584	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	7746ec6e55dc1957a3de5189bde4cdd4.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	7746ec6e55dc1957a3de5189bde4cdd4.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1372	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 584	1504	7746ec6e55dc1957a3de5189bde4cdd4.exe	28
PID 1504 wrote to memory of 584	1504	7746ec6e55dc1957a3de5189bde4cdd4.exe	28
PID 1504 wrote to memory of 584	1504	7746ec6e55dc1957a3de5189bde4cdd4.exe	28
PID 1504 wrote to memory of 584	1504	7746ec6e55dc1957a3de5189bde4cdd4.exe	28
PID 584 wrote to memory of 1372	584	cmd.exe	30
PID 584 wrote to memory of 1372	584	cmd.exe	30
PID 584 wrote to memory of 1372	584	cmd.exe	30
PID 584 wrote to memory of 1372	584	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\7746ec6e55dc1957a3de5189bde4cdd4.exe
"C:\Users\Admin\AppData\Local\Temp\7746ec6e55dc1957a3de5189bde4cdd4.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\TvtixkEK & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7746ec6e55dc1957a3de5189bde4cdd4.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:584
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:1372

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

Replay Monitor

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Downloads

memory/1504-55-0x000000000057B000-0x00000000005A1000-memory.dmp

Filesize
152KB

Download
memory/1504-56-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1504-57-0x0000000000220000-0x0000000000267000-memory.dmp

Filesize
284KB

Download
memory/1504-58-0x0000000000400000-0x0000000000469000-memory.dmp

Filesize
420KB

Download