cryptbot | 2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3

General

Target

8b2242c04e274c84a8dc25bcab75158f.exe
Size

2.6MB
MD5

8b2242c04e274c84a8dc25bcab75158f
SHA1

33d4c61dca4ab2392f23b18ac3188491db586f0f
SHA256

2dfc078c3658a63016fd846cc735c0d5c359b6639cb89ae08ccc9a19fb3e5df3
SHA512

f26bb2f323140ce71dcbc174b298cca7f9803be20322d64b9ccaf254763ae93ca53a7382942c42dc4ca7b7454dc8147a9df8c91962c9200e9d83835a0f5430ab

Score

10^/10

cryptbot evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

C2

hevzbn22.top

morwce02.top

Attributes

payload_url
http://kyvgns02.top/download.php?file=finjan.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:

8b2242c04e274c84a8dc25bcab75158f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8b2242c04e274c84a8dc25bcab75158f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8b2242c04e274c84a8dc25bcab75158f.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1860 cmd.exe

pid	process
1860	cmd.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1844-54-0x0000000000E00000-0x00000000014E6000-memory.dmp	themida
behavioral1/memory/1844-55-0x0000000000E00000-0x00000000014E6000-memory.dmp	themida
behavioral1/memory/1844-56-0x0000000000E00000-0x00000000014E6000-memory.dmp	themida
behavioral1/memory/1844-57-0x0000000000E00000-0x00000000014E6000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

8b2242c04e274c84a8dc25bcab75158f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8b2242c04e274c84a8dc25bcab75158f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

8b2242c04e274c84a8dc25bcab75158f.exe

pid process

1844 8b2242c04e274c84a8dc25bcab75158f.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
1844	8b2242c04e274c84a8dc25bcab75158f.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:

8b2242c04e274c84a8dc25bcab75158f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8b2242c04e274c84a8dc25bcab75158f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8b2242c04e274c84a8dc25bcab75158f.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

660 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

8b2242c04e274c84a8dc25bcab75158f.exe

pid process

1844 8b2242c04e274c84a8dc25bcab75158f.exe

pid	process
660	timeout.exe

pid	process
1844	8b2242c04e274c84a8dc25bcab75158f.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

8b2242c04e274c84a8dc25bcab75158f.execmd.exe

description	pid	process	target process
PID 1844 wrote to memory of 1860	1844	8b2242c04e274c84a8dc25bcab75158f.exe	cmd.exe
PID 1844 wrote to memory of 1860	1844	8b2242c04e274c84a8dc25bcab75158f.exe	cmd.exe
PID 1844 wrote to memory of 1860	1844	8b2242c04e274c84a8dc25bcab75158f.exe	cmd.exe
PID 1844 wrote to memory of 1860	1844	8b2242c04e274c84a8dc25bcab75158f.exe	cmd.exe
PID 1860 wrote to memory of 660	1860	cmd.exe	timeout.exe
PID 1860 wrote to memory of 660	1860	cmd.exe	timeout.exe
PID 1860 wrote to memory of 660	1860	cmd.exe	timeout.exe
PID 1860 wrote to memory of 660	1860	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\8b2242c04e274c84a8dc25bcab75158f.exe
"C:\Users\Admin\AppData\Local\Temp\8b2242c04e274c84a8dc25bcab75158f.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:1844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\yAZCwALc & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\8b2242c04e274c84a8dc25bcab75158f.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Windows\SysWOW64\timeout.exe
    timeout 4
    3⤵
    - Delays execution with timeout.exe
    PID:660

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/660-59-0x0000000000000000-mapping.dmp

Download
memory/1844-53-0x0000000075341000-0x0000000075343000-memory.dmp

Filesize
8KB

Download
memory/1844-54-0x0000000000E00000-0x00000000014E6000-memory.dmp

Filesize
6.9MB

Download
memory/1844-55-0x0000000000E00000-0x00000000014E6000-memory.dmp

Filesize
6.9MB

Download
memory/1844-56-0x0000000000E00000-0x00000000014E6000-memory.dmp

Filesize
6.9MB

Download
memory/1844-57-0x0000000000E00000-0x00000000014E6000-memory.dmp

Filesize
6.9MB

Download
memory/1860-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads