cryptbot | 77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf

General

Target

Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
Size

4.3MB
MD5

9a9a0a2d9375d6f207af97df95e0762f
SHA1

0c7a9c093c2e1c68c77582e5f7acab8fc10505f3
SHA256

77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf
SHA512

048ce614023621feda7e765b9d5ac4a49cd3f55cce4c56d827e96abb521a66e0c59a9bae9e521e8144be04d2f0c0fc2f5e55a214405d516630a4422018873c01
SSDEEP

98304:fFaMLDBg4+I5t3ZNXGRCoQSL9/g7wqwEdbnFUp:fPLDBgGFPXux/g7wnEd7FU

Score

10^/10

cryptbot discovery evasion spyware stealer

Malware Config

Extracted

Family

cryptbot

Signatures

CryptBot
CryptBot is a C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot
Cryptbot family
cryptbot

Enumerates VirtualBox registry keys 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1296	2808	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 1296	2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe	31
PID 2808 wrote to memory of 1296	2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe	31
PID 2808 wrote to memory of 1296	2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe	31
PID 2808 wrote to memory of 1296	2808	Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe	31

C:\Users\Admin\AppData\Local\Temp\Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_77953741b91b2deef3dc7e168cf072cda89e92a60ca0ee82c37a4bbb4d4d0abf.exe"
1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2808 -s 652
  2⤵
  - Program crash
  PID:1296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

3

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

3

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2808-0-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-1-0x0000000077B30000-0x0000000077B32000-memory.dmp

Filesize
8KB

Download
memory/2808-2-0x0000000001241000-0x00000000014CA000-memory.dmp

Filesize
2.5MB

Download
memory/2808-3-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-4-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-5-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-6-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-7-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-8-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-9-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-10-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-11-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-12-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-13-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-14-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-15-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-16-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-17-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-18-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-19-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download
memory/2808-21-0x0000000001240000-0x0000000001E6A000-memory.dmp

Filesize
12.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads