cryptbot | 828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013

General

Target

Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
Size

4.3MB
MD5

01fbecb34b5ac1c9c3336c64817f1637
SHA1

51f08b5cfb4d7c7c0bb96b8c0c171e3cf05e27ab
SHA256

828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013
SHA512

117787a4cad5f04af82f0492dd6118bc4f2af2e1cb209d92aa8edf437ce11d6f27bda74d816fe7640f47b6bbeb3cefb98ff9707106edec227274d4ba3d33f2fb
SSDEEP

98304:u/jc2pRsx2Zwa0WBsFu7RPv6PPWucMdwQ05:uLcSOcZwaxiMRP8PWrMa75

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_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.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_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.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_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Wine	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.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
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2416	2660	WerFault.exe	28

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_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2416	2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe	29
PID 2660 wrote to memory of 2416	2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe	29
PID 2660 wrote to memory of 2416	2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe	29
PID 2660 wrote to memory of 2416	2660	Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe	29

C:\Users\Admin\AppData\Local\Temp\Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_828c90e4bd13605fdf955b30e36336ff08d5f10858f21fdf38529debdd216013.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:2660
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 656
  2⤵
  - Program crash
  PID:2416

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/2660-0-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-1-0x00000000777B0000-0x00000000777B2000-memory.dmp

Filesize
8KB

Download
memory/2660-2-0x0000000000D91000-0x000000000101A000-memory.dmp

Filesize
2.5MB

Download
memory/2660-3-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-4-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-5-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-6-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-7-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-8-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-9-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-10-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-11-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-12-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-13-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-14-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-15-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-16-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-17-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-18-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-19-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-20-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-21-0x0000000000D90000-0x00000000019C6000-memory.dmp

Filesize
12.2MB

Download
memory/2660-22-0x0000000000D90000-0x00000000019C6000-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