cryptbot | 835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175

Analysis

max time kernel
189s
max time network
204s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
submitted
31/07/2022, 11:42

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General

Target
835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe
Size 4.2MB
Sample220731-nvb69sece5
SHA256 835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175
MD5 711314433abf81f90b6e54ee7c80a217
SHA1 2bd6a1acec7217207f17816fb8ee0ecfe747d4f5
SHA512 9be7405d83715f2ab3add06a42ec7eb162ce0fd02d87560c5f86cfc237506179092f1e847fa737a0f9bbdb4ce67d1590f4024c872b0f83a22400c823af7f0944
SSDEEP 98304:kMQaI5Gn2QfXHZwaNsflwf4QLypfIaa2uL3adc5orvA+1o:kMDl22XH+S+tEOLe3asor4+C
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

cryptbot discovery evasion spyware stealer

Malware Config

Extracted

Family

cryptbot

newyaer01.top

Signatures

CryptBot
A C++ stealer distributed widely in bundle with other software.
spyware stealer cryptbot

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__	Setup.exe

Executes dropped EXE 1 IoCs

pid	Process
4964	Setup.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	Setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Setup.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-1-5-21-2372564722-193526734-2636556182-1000\Software\Wine	Setup.exe

Loads dropped DLL 1 IoCs

pid	Process
744	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
49	ip-api.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4964	Setup.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\New Year\Setup.exe	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe
File created	C:\Program Files (x86)\New Year\Setx.exe	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe
File created	C:\Program Files (x86)\New Year\enigma_ide.dll	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Setup.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Setup.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4964	Setup.exe
4964	Setup.exe

Suspicious use of FindShellTrayWindow 12 IoCs

pid	Process
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe
4964	Setup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 4964	744	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe	83
PID 744 wrote to memory of 4964	744	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe	83
PID 744 wrote to memory of 4964	744	835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe	83

C:\Users\Admin\AppData\Local\Temp\835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe
"C:\Users\Admin\AppData\Local\Temp\835002f99b229e4c2c71f5c0a3760584ed45dd39c6220b0f14dbf232a123e175.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:744
- C:\Program Files (x86)\New Year\Setup.exe
  "C:\Program Files (x86)\New Year\Setup.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  PID:4964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

Setup.exe

Path C:\Program Files (x86)\New Year\Setup.exe
Size 2.2MB
SHA256 1abce7851d8af7ae4c6f53ccea4a39574de4170af505fcc7c625f3fd39b5423b
MD5 51e709380f586ce9a7147210e3a61726
SHA1 afc8ec3c36083b358269da8cd44909760362aae2
SHA512 053c6f4efdd62230370eb4439852d7b0079abf067b7b668388425f952fb034fbd67d066411f8a1c56ab45d2371028fa60ff0798ea02d01b853f7d479cdccd7ff
SSDEEP 49152:s2xnuFstMLQoDIU1oAQ7IHiWRR6fxtVeTzQzVpThG8wTeC1:s2xnPMLld1oxPWv6f0qVpThG8wT
MD5 SHA1 SHA512 SSDEEP

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Setup.exe

Path C:\Program Files (x86)\New Year\Setup.exe
Size 2.2MB
SHA256 1abce7851d8af7ae4c6f53ccea4a39574de4170af505fcc7c625f3fd39b5423b
MD5 51e709380f586ce9a7147210e3a61726
SHA1 afc8ec3c36083b358269da8cd44909760362aae2
SHA512 053c6f4efdd62230370eb4439852d7b0079abf067b7b668388425f952fb034fbd67d066411f8a1c56ab45d2371028fa60ff0798ea02d01b853f7d479cdccd7ff
SSDEEP 49152:s2xnuFstMLQoDIU1oAQ7IHiWRR6fxtVeTzQzVpThG8wTeC1:s2xnPMLld1oxPWv6f0qVpThG8wT
MD5 SHA1 SHA512 SSDEEP

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UAC.dll

Path C:\Users\Admin\AppData\Local\Temp\nsh3E62.tmp\UAC.dll
Size 14KB
SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
MD5 adb29e6b186daa765dc750128649b63d
SHA1 160cbdc4cb0ac2c142d361df138c537aa7e708c9
SHA512 b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada
SSDEEP 192:DiF6v2imI36Op/tGZGfWxdyWHD0I53vLl7WVl8e04IpDlPjs:DGVY6ClGoWxXH75T1WVl83lLs
MD5 SHA1 SHA512 SSDEEP

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memory/4964-134-0x0000000000760000-0x0000000000C9E000-memory.dmp

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memory/4964-135-0x0000000077C30000-0x0000000077DD3000-memory.dmp

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memory/4964-136-0x0000000000760000-0x0000000000C9E000-memory.dmp

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memory/4964-137-0x0000000000760000-0x0000000000C9E000-memory.dmp

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memory/4964-138-0x0000000077C30000-0x0000000077DD3000-memory.dmp

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memory/4964-139-0x0000000000760000-0x0000000000C9E000-memory.dmp

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