cryptbot | 43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f

General

Target

43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe
Size

4.0MB
MD5

d382233f2487e3a80ce6fe3947790698
SHA1

e0432fb62e612bfde6c4a177207c96e0f98a3036
SHA256

43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f
SHA512

26ef09c884d7e10d2acbc9c774d16cedad26e1f8e9c5a08b9f09b79baa001e06af7e4d28c87e0c4a091b936dea7ae482d2a730d72390f8b56dd8410929ef2c9a
SSDEEP

98304:TOevFArh176FXP44VgUhkB6cIvQeKuYz5mh3J5:TdFAN1anFhk4yeKuYOJ5

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

briybc32.top

Signatures

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

Deletes itself 1 IoCs

pid	Process
1536	cmd.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe

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 3 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	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2632	timeout.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 1536	2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe	30
PID 2792 wrote to memory of 1536	2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe	30
PID 2792 wrote to memory of 1536	2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe	30
PID 2792 wrote to memory of 1536	2792	43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe	30
PID 1536 wrote to memory of 2632	1536	cmd.exe	32
PID 1536 wrote to memory of 2632	1536	cmd.exe	32
PID 1536 wrote to memory of 2632	1536	cmd.exe	32
PID 1536 wrote to memory of 2632	1536	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe
"C:\Users\Admin\AppData\Local\Temp\43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\YlrUTitt & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\43d43cae0a7432a80a3ea1f12b6d134ee9814a46dbe8d5d7556f6d50f0a1506f.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1536
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2792-0-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-1-0x0000000000401000-0x0000000000CC4000-memory.dmp

Filesize
8.8MB

Download
memory/2792-4-0x0000000000320000-0x0000000000361000-memory.dmp

Filesize
260KB

Download
memory/2792-7-0x00000000003B0000-0x00000000003B1000-memory.dmp

Filesize
4KB

Download
memory/2792-6-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-5-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-9-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-8-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-3-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-10-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-11-0x0000000000F50000-0x0000000000F97000-memory.dmp

Filesize
284KB

Download
memory/2792-18-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-23-0x0000000000401000-0x0000000000CC4000-memory.dmp

Filesize
8.8MB

Download
memory/2792-22-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/2792-20-0x0000000000320000-0x0000000000361000-memory.dmp

Filesize
260KB

Download
memory/2792-19-0x0000000000F50000-0x0000000000F97000-memory.dmp

Filesize
284KB

Download

Analysis

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