cryptbot | 40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579

General

Target

40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
Size

4.3MB
MD5

4b7a502ea349a1138dabc95986ae5f01
SHA1

2fc5f42c5bb44566198a2069eb11327043216689
SHA256

40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579
SHA512

1238161d24634561b0de608d2857d82f99582c0b216c1d5cac02e5ec2039cc73b4b8211d48c58d8fe38c7599a284096d087659749dc037b3dacb6b9d1e891186
SSDEEP

98304:VsA3f3OQ4tskTO2+947Yxgm9cHW6WwCOTHG3p1k2:H3OD3Zr7Ugm9cgom

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	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.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__	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.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	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.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-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.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
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1972	3676	WerFault.exe	82

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	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
3676	40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe

C:\Users\Admin\AppData\Local\Temp\40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.exe
"C:\Users\Admin\AppData\Local\Temp\40537aa62a4949ad137a04bcfaaf15e94634aeffb7c84ea34dc403f8f99c7579_Sigmanly.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
PID:3676
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 1140
  2⤵
  - Program crash
  PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3676 -ip 3676
1⤵
PID:4516

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/3676-0-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-1-0x0000000076F04000-0x0000000076F06000-memory.dmp

Filesize
8KB

Download
memory/3676-2-0x0000000000201000-0x000000000048B000-memory.dmp

Filesize
2.5MB

Download
memory/3676-3-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-4-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-5-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-6-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-7-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-8-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-9-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-10-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-11-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-12-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-13-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-14-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-15-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-16-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download
memory/3676-17-0x0000000000200000-0x0000000000E62000-memory.dmp

Filesize
12.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads