cryptbot | 7b3296a5492a8b01ab3bb33164a1bb269630b396d6dd8234accce8e4c4d84067

General

Target

99b6ee52d0dc5a07bff09373a8dda2fe.exe
Size

2.7MB
MD5

99b6ee52d0dc5a07bff09373a8dda2fe
SHA1

616c52af96614c86623829b604b0eda3cf29af28
SHA256

7b3296a5492a8b01ab3bb33164a1bb269630b396d6dd8234accce8e4c4d84067
SHA512

338babef8e40c74ab6957b226e90457d9a0db9f4007235a2df699d4ba6797f571c957b743c1324acad579fd50fd128af47550e5680f92fa7ce276f5cc9d3c12e

Score

10^/10

cryptbot evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

C2

hevahu32.top

morypd03.top

Attributes

payload_url
http://kyrpbr04.top/download.php?file=orrery.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:

99b6ee52d0dc5a07bff09373a8dda2fe.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	99b6ee52d0dc5a07bff09373a8dda2fe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	99b6ee52d0dc5a07bff09373a8dda2fe.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

520 cmd.exe

pid	process
520	cmd.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/740-56-0x0000000000B40000-0x000000000122F000-memory.dmp	themida
behavioral1/memory/740-57-0x0000000000B40000-0x000000000122F000-memory.dmp	themida
behavioral1/memory/740-59-0x0000000000B40000-0x000000000122F000-memory.dmp	themida
behavioral1/memory/740-58-0x0000000000B40000-0x000000000122F000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

99b6ee52d0dc5a07bff09373a8dda2fe.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	99b6ee52d0dc5a07bff09373a8dda2fe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

99b6ee52d0dc5a07bff09373a8dda2fe.exe

pid process

740 99b6ee52d0dc5a07bff09373a8dda2fe.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
740	99b6ee52d0dc5a07bff09373a8dda2fe.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:

99b6ee52d0dc5a07bff09373a8dda2fe.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	99b6ee52d0dc5a07bff09373a8dda2fe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	99b6ee52d0dc5a07bff09373a8dda2fe.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1772 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

99b6ee52d0dc5a07bff09373a8dda2fe.exe

pid process

740 99b6ee52d0dc5a07bff09373a8dda2fe.exe

pid	process
1772	timeout.exe

pid	process
740	99b6ee52d0dc5a07bff09373a8dda2fe.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

99b6ee52d0dc5a07bff09373a8dda2fe.execmd.exe

description	pid	process	target process
PID 740 wrote to memory of 520	740	99b6ee52d0dc5a07bff09373a8dda2fe.exe	cmd.exe
PID 740 wrote to memory of 520	740	99b6ee52d0dc5a07bff09373a8dda2fe.exe	cmd.exe
PID 740 wrote to memory of 520	740	99b6ee52d0dc5a07bff09373a8dda2fe.exe	cmd.exe
PID 740 wrote to memory of 520	740	99b6ee52d0dc5a07bff09373a8dda2fe.exe	cmd.exe
PID 520 wrote to memory of 1772	520	cmd.exe	timeout.exe
PID 520 wrote to memory of 1772	520	cmd.exe	timeout.exe
PID 520 wrote to memory of 1772	520	cmd.exe	timeout.exe
PID 520 wrote to memory of 1772	520	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\99b6ee52d0dc5a07bff09373a8dda2fe.exe
"C:\Users\Admin\AppData\Local\Temp\99b6ee52d0dc5a07bff09373a8dda2fe.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:740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\mKtEUiGas & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\99b6ee52d0dc5a07bff09373a8dda2fe.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:1772

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/520-60-0x0000000000000000-mapping.dmp

Download
memory/740-55-0x00000000763B1000-0x00000000763B3000-memory.dmp

Filesize
8KB

Download
memory/740-56-0x0000000000B40000-0x000000000122F000-memory.dmp

Filesize
6.9MB

Download
memory/740-57-0x0000000000B40000-0x000000000122F000-memory.dmp

Filesize
6.9MB

Download
memory/740-59-0x0000000000B40000-0x000000000122F000-memory.dmp

Filesize
6.9MB

Download
memory/740-58-0x0000000000B40000-0x000000000122F000-memory.dmp

Filesize
6.9MB

Download
memory/1772-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads