cryptbot | 51e9ccfd1c8ae13270052947f8dc6e3386c585bf733228a8dc0e028e1c31223f

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-04-2024 23:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
Size

2.7MB
MD5

a9a3893285e274d60a9bb5b85f4dfcc4
SHA1

960237e74a28393b0f906a46acffdb4d6160b763
SHA256

51e9ccfd1c8ae13270052947f8dc6e3386c585bf733228a8dc0e028e1c31223f
SHA512

b22237255cdcca7c9cdd1dd0664368a967b09ad672f57beb96891ab6abfd6bf4c2d7161f1f9e9bc468539811494c8fc1c6d6417c0b339c22fc90769addfa3bc0
SSDEEP

49152:bH/xSb7E7SkThT0P6arzLNKYr4xMGL6kM8qhcFgSY81A9n5efYFVrZMsptwUrcS7:LwMGkThT0PjjNcxMGfGNSA9n5kYzrXpD

Score

10^/10

cryptbot evasion spyware stealer themida trojan

Malware Config

Extracted

Family

cryptbot

oct5m.top

oct5e.top

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 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

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:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2344 cmd.exe

pid	process
2344	cmd.exe

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2236-0-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida
behavioral1/memory/2236-2-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida
behavioral1/memory/2236-3-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida
behavioral1/memory/2236-4-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida
behavioral1/memory/2236-5-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida
behavioral1/memory/2236-6-0x0000000000820000-0x0000000000F0E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

pid process

2236 a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

pid	process
2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.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:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2332 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

pid process

2236 a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

pid	process
2332	timeout.exe

pid	process
2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.execmd.exe

description	pid	process	target process
PID 2236 wrote to memory of 2344	2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe	cmd.exe
PID 2236 wrote to memory of 2344	2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe	cmd.exe
PID 2236 wrote to memory of 2344	2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe	cmd.exe
PID 2236 wrote to memory of 2344	2236	a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe	cmd.exe
PID 2344 wrote to memory of 2332	2344	cmd.exe	timeout.exe
PID 2344 wrote to memory of 2332	2344	cmd.exe	timeout.exe
PID 2344 wrote to memory of 2332	2344	cmd.exe	timeout.exe
PID 2344 wrote to memory of 2332	2344	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- 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:2236

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\NjSQKDoByVnqm & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\a9a3893285e274d60a9bb5b85f4dfcc4_JaffaCakes118.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:2344

C:\Windows\SysWOW64\timeout.exe
timeout 4
3⤵
- Delays execution with timeout.exe
PID:2332

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2236-0-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-1-0x0000000077E90000-0x0000000077E92000-memory.dmp

Filesize
8KB

Download
memory/2236-2-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-3-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-4-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-5-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-6-0x0000000000820000-0x0000000000F0E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads