cryptbot | 161ce807aa141a328eeb24bdc91264071ab2dddf6184c974dabf86ad91b0a77e

Analysis

max time kernel
4294180s
max time network
123s
platform
windows7_x64
resource
win7-20220223-en
submitted
24-02-2022 18:09

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General

Target

9f9b4a29bff765b3a6c79737f4471268.exe
Size

698KB
MD5

9f9b4a29bff765b3a6c79737f4471268
SHA1

ac6dd5c92e07bf2057dacf5b15cace59b2d0f88e
SHA256

161ce807aa141a328eeb24bdc91264071ab2dddf6184c974dabf86ad91b0a77e
SHA512

67c83d686ca2da124877fbb31e953be80363ecf27e0dc29093f3bf6259b2ca41800223b23a8d13b87f1d8df6fe9d47ada6748be8cdaff602cffa0a8461d487bb

Score

10^/10

cryptbot spyware stealer

Malware Config

Extracted

Family

cryptbot

brikwl42.top

Signatures

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

Processes:

cmd.exe

pid process

1112 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1112	cmd.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

Processes:

9f9b4a29bff765b3a6c79737f4471268.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	9f9b4a29bff765b3a6c79737f4471268.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	9f9b4a29bff765b3a6c79737f4471268.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1632 timeout.exe

pid	process
1632	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

9f9b4a29bff765b3a6c79737f4471268.execmd.exe

description	pid	process	target process
PID 1476 wrote to memory of 1112	1476	9f9b4a29bff765b3a6c79737f4471268.exe	cmd.exe
PID 1476 wrote to memory of 1112	1476	9f9b4a29bff765b3a6c79737f4471268.exe	cmd.exe
PID 1476 wrote to memory of 1112	1476	9f9b4a29bff765b3a6c79737f4471268.exe	cmd.exe
PID 1476 wrote to memory of 1112	1476	9f9b4a29bff765b3a6c79737f4471268.exe	cmd.exe
PID 1112 wrote to memory of 1632	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 1632	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 1632	1112	cmd.exe	timeout.exe
PID 1112 wrote to memory of 1632	1112	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\9f9b4a29bff765b3a6c79737f4471268.exe
"C:\Users\Admin\AppData\Local\Temp\9f9b4a29bff765b3a6c79737f4471268.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1476
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\DyCfEokjRHDxu & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9f9b4a29bff765b3a6c79737f4471268.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:1632

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/1476-54-0x00000000004D0000-0x0000000000530000-memory.dmp

Filesize
384KB

Download
memory/1476-56-0x0000000075BE1000-0x0000000075BE3000-memory.dmp

Filesize
8KB

Download
memory/1476-55-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/1476-57-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/1476-59-0x0000000002530000-0x0000000002531000-memory.dmp

Filesize
4KB

Download
memory/1476-60-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/1476-58-0x00000000025A0000-0x00000000025A1000-memory.dmp

Filesize
4KB

Download
memory/1476-61-0x0000000002570000-0x0000000002571000-memory.dmp

Filesize
4KB

Download
memory/1476-63-0x0000000002590000-0x0000000002591000-memory.dmp

Filesize
4KB

Download
memory/1476-62-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/1476-64-0x0000000003260000-0x0000000003261000-memory.dmp

Filesize
4KB

Download
memory/1476-66-0x0000000003350000-0x0000000003397000-memory.dmp

Filesize
284KB

Download
memory/1476-68-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/1476-65-0x0000000003250000-0x0000000003251000-memory.dmp

Filesize
4KB

Download
memory/1476-70-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/1476-72-0x0000000002080000-0x0000000002081000-memory.dmp

Filesize
4KB

Download
memory/1476-74-0x0000000002050000-0x0000000002051000-memory.dmp

Filesize
4KB

Download
memory/1476-76-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download
memory/1476-77-0x00000000032B0000-0x00000000032B1000-memory.dmp

Filesize
4KB

Download
memory/1476-79-0x00000000032A0000-0x00000000032A1000-memory.dmp

Filesize
4KB

Download
memory/1476-78-0x0000000003351000-0x0000000003385000-memory.dmp

Filesize
208KB

Download
memory/1476-80-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/1476-82-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/1476-81-0x00000000024A0000-0x00000000024A1000-memory.dmp

Filesize
4KB

Download
memory/1476-84-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/1476-83-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/1476-86-0x00000000024C0000-0x00000000024C1000-memory.dmp

Filesize
4KB

Download
memory/1476-85-0x0000000002510000-0x0000000002511000-memory.dmp

Filesize
4KB

Download
memory/1476-87-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1476-88-0x0000000003300000-0x0000000003301000-memory.dmp

Filesize
4KB

Download
memory/1476-89-0x0000000002600000-0x0000000002601000-memory.dmp

Filesize
4KB

Download
memory/1476-90-0x00000000025F0000-0x00000000025F1000-memory.dmp

Filesize
4KB

Download
memory/1476-92-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/1476-91-0x0000000002650000-0x0000000002651000-memory.dmp

Filesize
4KB

Download
memory/1476-93-0x0000000002670000-0x0000000002671000-memory.dmp

Filesize
4KB

Download
memory/1476-95-0x0000000002660000-0x0000000002661000-memory.dmp

Filesize
4KB

Download
memory/1476-94-0x0000000002620000-0x0000000002621000-memory.dmp

Filesize
4KB

Download
memory/1476-96-0x0000000002610000-0x0000000002611000-memory.dmp

Filesize
4KB

Download
memory/1476-98-0x00000000032C0000-0x00000000032C1000-memory.dmp

Filesize
4KB

Download
memory/1476-97-0x00000000032D0000-0x00000000032D1000-memory.dmp

Filesize
4KB

Download