cryptbot | 2eab6eeca8ee894e70353f47e930c15fdbd599ae99357b17c2a412d60ecf4d98

General

Target

bd532d1e7f14ff577daa3a21557eeb31.exe
Size

2.6MB
MD5

bd532d1e7f14ff577daa3a21557eeb31
SHA1

569003082bf7c286e8e6441eb93fb36c431b2364
SHA256

2eab6eeca8ee894e70353f47e930c15fdbd599ae99357b17c2a412d60ecf4d98
SHA512

60edfba907820ceb5eddf7369a2bad45fdf86a651b0851fad4bbcac9087fa5f9c38173c27b48f49caebd6339a95a49a3eade8fca1b47f449c05447cb4c3601fe

Score

10^/10

cryptbot evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

C2

hevtal42.top

morosf04.top

Attributes

payload_url
http://kyrgvz05.top/download.php?file=kulmet.exe

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

bd532d1e7f14ff577daa3a21557eeb31.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	bd532d1e7f14ff577daa3a21557eeb31.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	bd532d1e7f14ff577daa3a21557eeb31.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

268 cmd.exe

pid	process
268	cmd.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1504-55-0x0000000000FE0000-0x00000000016C5000-memory.dmp	themida
behavioral1/memory/1504-56-0x0000000000FE0000-0x00000000016C5000-memory.dmp	themida
behavioral1/memory/1504-57-0x0000000000FE0000-0x00000000016C5000-memory.dmp	themida
behavioral1/memory/1504-58-0x0000000000FE0000-0x00000000016C5000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

bd532d1e7f14ff577daa3a21557eeb31.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	bd532d1e7f14ff577daa3a21557eeb31.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

bd532d1e7f14ff577daa3a21557eeb31.exe

pid process

1504 bd532d1e7f14ff577daa3a21557eeb31.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
1504	bd532d1e7f14ff577daa3a21557eeb31.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:

bd532d1e7f14ff577daa3a21557eeb31.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	bd532d1e7f14ff577daa3a21557eeb31.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	bd532d1e7f14ff577daa3a21557eeb31.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

464 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

bd532d1e7f14ff577daa3a21557eeb31.exe

pid process

1504 bd532d1e7f14ff577daa3a21557eeb31.exe

pid	process
464	timeout.exe

pid	process
1504	bd532d1e7f14ff577daa3a21557eeb31.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bd532d1e7f14ff577daa3a21557eeb31.execmd.exe

description	pid	process	target process
PID 1504 wrote to memory of 268	1504	bd532d1e7f14ff577daa3a21557eeb31.exe	cmd.exe
PID 1504 wrote to memory of 268	1504	bd532d1e7f14ff577daa3a21557eeb31.exe	cmd.exe
PID 1504 wrote to memory of 268	1504	bd532d1e7f14ff577daa3a21557eeb31.exe	cmd.exe
PID 1504 wrote to memory of 268	1504	bd532d1e7f14ff577daa3a21557eeb31.exe	cmd.exe
PID 268 wrote to memory of 464	268	cmd.exe	timeout.exe
PID 268 wrote to memory of 464	268	cmd.exe	timeout.exe
PID 268 wrote to memory of 464	268	cmd.exe	timeout.exe
PID 268 wrote to memory of 464	268	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\bd532d1e7f14ff577daa3a21557eeb31.exe
"C:\Users\Admin\AppData\Local\Temp\bd532d1e7f14ff577daa3a21557eeb31.exe"
1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- 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\rVrgPljsXY & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\bd532d1e7f14ff577daa3a21557eeb31.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\timeout.exe
timeout 4
3⤵
- Delays execution with timeout.exe
PID:464

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/268-59-0x0000000000000000-mapping.dmp

Download
memory/464-60-0x0000000000000000-mapping.dmp

Download
memory/1504-54-0x00000000751B1000-0x00000000751B3000-memory.dmp

Filesize
8KB

Download
memory/1504-55-0x0000000000FE0000-0x00000000016C5000-memory.dmp

Filesize
6.9MB

Download
memory/1504-56-0x0000000000FE0000-0x00000000016C5000-memory.dmp

Filesize
6.9MB

Download
memory/1504-57-0x0000000000FE0000-0x00000000016C5000-memory.dmp

Filesize
6.9MB

Download
memory/1504-58-0x0000000000FE0000-0x00000000016C5000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads