cryptbot | 873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85

General

Target

873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
Size

4.3MB
MD5

78d5e1e506076e02ca87e9414b1484d6
SHA1

c41b363f251f3d0e6b1f52dcb49fc2bed4258b7d
SHA256

873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85
SHA512

5181764100cdb6ec84de6e9b2e5c7f7c6e3abd8e05382128721038a8be471f376612a1a35bcbb328a0dfab4c5a574c77e320b01c59bddd19b54bb1adc8f92b10
SSDEEP

98304:KS5opkY5orPSexK1RlF7vyTojI+lOBEvI+2JBBARgV3:KSqayorPSeol5RjImY5CKV

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	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_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__	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_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	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_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-1-5-21-3533259084-2542256011-65585152-1000\Software\Wine	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_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
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe

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	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
2884	873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe

C:\Users\Admin\AppData\Local\Temp\873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_Sigmanly.exe
"C:\Users\Admin\AppData\Local\Temp\873d4b5b8523bfb8bf18817fc0f1c01c7f843e2182f77f8c4d169175feb16d85_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:2884

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/2884-0-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-1-0x00000000775F0000-0x00000000775F2000-memory.dmp

Filesize
8KB

Download
memory/2884-2-0x0000000000311000-0x000000000059B000-memory.dmp

Filesize
2.5MB

Download
memory/2884-3-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-4-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-5-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-6-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-7-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-8-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-9-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-10-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-11-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download
memory/2884-13-0x0000000000310000-0x0000000000F9E000-memory.dmp

Filesize
12.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads