cryptbot | a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73

General

Target

a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
Size

4.3MB
MD5

f4d4066fee7e7e63dd914f564202af5b
SHA1

bf2330d98dc66911f0078539ee48e6ad8dbb4686
SHA256

a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73
SHA512

468d6cbcfbebf5a1140a161fe742188df14d942a3681f1931ae7c0c840c24f9c3b2e55745478c1472e2f6cfec96df27265da93917c390c6ad0c51d6d9062fba1
SSDEEP

98304:yGJm9VvjOlk+BwDMO8cAqgVRWn8sTNRjWJzVGKRUVXKEbUzH:OvurwD38ygVRW8sBRCzGOuUz

Score

10^/10

cryptbot discovery evasion spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

http://home.fivetk5vt.top/hLfzXsaqNtoEGyaUtOMJ1734

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	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_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__	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_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	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_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-1-5-21-312935884-697965778-3955649944-1000\Software\Wine	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_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
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2336	2068	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	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2336	2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe	30
PID 2068 wrote to memory of 2336	2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe	30
PID 2068 wrote to memory of 2336	2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe	30
PID 2068 wrote to memory of 2336	2068	a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe	30

C:\Users\Admin\AppData\Local\Temp\a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_Sigmanly.exe
"C:\Users\Admin\AppData\Local\Temp\a6f94c1717ad8bb2d8a2db5d3b286e1e5bbe6b5086216661250579e654826e73_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
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 656
  2⤵
  - Program crash
  PID:2336

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

Replay Monitor

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Downloads

memory/2068-0-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-1-0x0000000077BC0000-0x0000000077BC2000-memory.dmp

Filesize
8KB

Download
memory/2068-2-0x0000000000B51000-0x0000000000DD6000-memory.dmp

Filesize
2.5MB

Download
memory/2068-3-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-4-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-5-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-6-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-7-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-8-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-9-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-10-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-11-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-12-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-13-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-14-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-15-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download
memory/2068-16-0x0000000000B50000-0x000000000173F000-memory.dmp

Filesize
11.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads