cryptbot | 3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8

General

Target

71af238fbf3c5a3a2c2c3594f1ba8a32.exe
Size

2.5MB
MD5

71af238fbf3c5a3a2c2c3594f1ba8a32
SHA1

b9f49782704b14572985ca13b10842d3aa836ad0
SHA256

3c320ddeb57b9d6240cbaab26104e906dfa04a10115a773355a2157013e991a8
SHA512

fb12811297a22a71ead742dcde54357cf712c04ad690ed6103287f903592999fcde804357488e062fb8783a24394cc0ff23fa1ffbb9d15941e38873a75f59d7f

Score

10^/10

cryptbot evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

C2

kotehj62.top

Attributes

payload_url
http://okadoc09.top/download.php?file=makeyr.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:

71af238fbf3c5a3a2c2c3594f1ba8a32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	71af238fbf3c5a3a2c2c3594f1ba8a32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	71af238fbf3c5a3a2c2c3594f1ba8a32.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

572 cmd.exe

pid	process
572	cmd.exe

Themida packer 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1504-55-0x0000000000850000-0x0000000000EE2000-memory.dmp	themida
behavioral1/memory/1504-56-0x0000000000850000-0x0000000000EE2000-memory.dmp	themida
behavioral1/memory/1504-57-0x0000000000850000-0x0000000000EE2000-memory.dmp	themida
behavioral1/memory/1504-58-0x0000000000850000-0x0000000000EE2000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

71af238fbf3c5a3a2c2c3594f1ba8a32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	71af238fbf3c5a3a2c2c3594f1ba8a32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

71af238fbf3c5a3a2c2c3594f1ba8a32.exe

pid process

1504 71af238fbf3c5a3a2c2c3594f1ba8a32.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	71af238fbf3c5a3a2c2c3594f1ba8a32.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:

71af238fbf3c5a3a2c2c3594f1ba8a32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	71af238fbf3c5a3a2c2c3594f1ba8a32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	71af238fbf3c5a3a2c2c3594f1ba8a32.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

464 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

71af238fbf3c5a3a2c2c3594f1ba8a32.exe

pid process

1504 71af238fbf3c5a3a2c2c3594f1ba8a32.exe

pid	process
464	timeout.exe

pid	process
1504	71af238fbf3c5a3a2c2c3594f1ba8a32.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

71af238fbf3c5a3a2c2c3594f1ba8a32.execmd.exe

description	pid	process	target process
PID 1504 wrote to memory of 572	1504	71af238fbf3c5a3a2c2c3594f1ba8a32.exe	cmd.exe
PID 1504 wrote to memory of 572	1504	71af238fbf3c5a3a2c2c3594f1ba8a32.exe	cmd.exe
PID 1504 wrote to memory of 572	1504	71af238fbf3c5a3a2c2c3594f1ba8a32.exe	cmd.exe
PID 1504 wrote to memory of 572	1504	71af238fbf3c5a3a2c2c3594f1ba8a32.exe	cmd.exe
PID 572 wrote to memory of 464	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 464	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 464	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 464	572	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\71af238fbf3c5a3a2c2c3594f1ba8a32.exe
"C:\Users\Admin\AppData\Local\Temp\71af238fbf3c5a3a2c2c3594f1ba8a32.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\iWnKRIexPABLj & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\71af238fbf3c5a3a2c2c3594f1ba8a32.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:572

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

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Downloads

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

Download
memory/572-59-0x0000000000000000-mapping.dmp

Download
memory/1504-54-0x0000000076451000-0x0000000076453000-memory.dmp

Filesize
8KB

Download
memory/1504-55-0x0000000000850000-0x0000000000EE2000-memory.dmp

Filesize
6.6MB

Download
memory/1504-56-0x0000000000850000-0x0000000000EE2000-memory.dmp

Filesize
6.6MB

Download
memory/1504-57-0x0000000000850000-0x0000000000EE2000-memory.dmp

Filesize
6.6MB

Download
memory/1504-58-0x0000000000850000-0x0000000000EE2000-memory.dmp

Filesize
6.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads