cryptbot | 8e866375a8d49db2282a0ef0d38667b38ee10bcb23fd63692c65749fb3217f2d

General

Target

EbookReader2019.exe
Size

6.3MB
MD5

847c79e639fb34c2058728ca2fda7bd4
SHA1

7f1612cae512f41aa91fec27fab0dac73f65e4da
SHA256

8e866375a8d49db2282a0ef0d38667b38ee10bcb23fd63692c65749fb3217f2d
SHA512

05c5f5943a432c7e5080e8403d6ca1fa31ea1f47fb4820fed1ad14cd972caa7bb8f620500fa72fd4f66bba63820f6d1d984b6e370524e2ea71a0bf32688875bc

Score

10^/10

cryptbot discovery evasion spyware stealer

Malware Config

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
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

1.exe

pid process

2008 1.exe

pid	process
2008	1.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

Processes:

1.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	1.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

Processes:

1.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Wine 1.exe
Loads dropped DLL 4 IoCs

Processes:

EbookReader2019.exe1.exe

pid process

848 EbookReader2019.exe
848 EbookReader2019.exe
2008 1.exe
2008 1.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.

Processes:

flow ioc

4 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

1.exe

pid process

2008 1.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Wine	1.exe

pid	process
848	EbookReader2019.exe
848	EbookReader2019.exe
2008	1.exe
2008	1.exe

flow	ioc
4	ip-api.com

pid	process
2008	1.exe

Drops file in Program Files directory 3 IoCs

Processes:

EbookReader2019.exe

description	ioc	process
File created	C:\Program Files (x86)\Margin\Marg\1.exe	EbookReader2019.exe
File created	C:\Program Files (x86)\Margin\Marg\2.exe	EbookReader2019.exe
File created	C:\Program Files (x86)\Margin\Marg\3.exe	EbookReader2019.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

Processes:

1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	1.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

1.exe

pid process

2008 1.exe
Suspicious use of FindShellTrayWindow 12 IoCs

Processes:

1.exe

pid process

2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe
2008 1.exe

pid	process
2008	1.exe

pid	process
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe
2008	1.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EbookReader2019.exe

description	pid	process	target process
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe
PID 848 wrote to memory of 2008	848	EbookReader2019.exe	1.exe

C:\Users\Admin\AppData\Local\Temp\EbookReader2019.exe
"C:\Users\Admin\AppData\Local\Temp\EbookReader2019.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:848

C:\Program Files (x86)\Margin\Marg\1.exe
"C:\Program Files (x86)\Margin\Marg\1.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:2008

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

5

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Margin\Marg\1.exe
MD5
987a9a9e0d4bbad66a9b823b3f939bc1

SHA1
b1e733fcf656d37326d12650406676903f10090a

SHA256
15f2a0a15572b7e7d229f7c309f3f4599aa7404b18f020b1fdb8518e584a48fe

SHA512
791fff5b437ab8ac856cdb70b366897e90695235ca73c06320f638957bf8c007e6aa5eba6fd34a883abcd2f0748822490b7716b301b22a388828731b2bab486d

Download Submit
C:\Program Files (x86)\Margin\Marg\1.exe
MD5
987a9a9e0d4bbad66a9b823b3f939bc1

SHA1
b1e733fcf656d37326d12650406676903f10090a

SHA256
15f2a0a15572b7e7d229f7c309f3f4599aa7404b18f020b1fdb8518e584a48fe

SHA512
791fff5b437ab8ac856cdb70b366897e90695235ca73c06320f638957bf8c007e6aa5eba6fd34a883abcd2f0748822490b7716b301b22a388828731b2bab486d

Download Submit
\Program Files (x86)\Margin\Marg\1.exe
MD5
987a9a9e0d4bbad66a9b823b3f939bc1

SHA1
b1e733fcf656d37326d12650406676903f10090a

SHA256
15f2a0a15572b7e7d229f7c309f3f4599aa7404b18f020b1fdb8518e584a48fe

SHA512
791fff5b437ab8ac856cdb70b366897e90695235ca73c06320f638957bf8c007e6aa5eba6fd34a883abcd2f0748822490b7716b301b22a388828731b2bab486d

Download Submit
\Program Files (x86)\Margin\Marg\1.exe
MD5
987a9a9e0d4bbad66a9b823b3f939bc1

SHA1
b1e733fcf656d37326d12650406676903f10090a

SHA256
15f2a0a15572b7e7d229f7c309f3f4599aa7404b18f020b1fdb8518e584a48fe

SHA512
791fff5b437ab8ac856cdb70b366897e90695235ca73c06320f638957bf8c007e6aa5eba6fd34a883abcd2f0748822490b7716b301b22a388828731b2bab486d

Download Submit
\Program Files (x86)\Margin\Marg\1.exe
MD5
987a9a9e0d4bbad66a9b823b3f939bc1

SHA1
b1e733fcf656d37326d12650406676903f10090a

SHA256
15f2a0a15572b7e7d229f7c309f3f4599aa7404b18f020b1fdb8518e584a48fe

SHA512
791fff5b437ab8ac856cdb70b366897e90695235ca73c06320f638957bf8c007e6aa5eba6fd34a883abcd2f0748822490b7716b301b22a388828731b2bab486d

Download Submit
\Users\Admin\AppData\Local\Temp\nsx1372.tmp\UAC.dll
MD5
adb29e6b186daa765dc750128649b63d

SHA1
160cbdc4cb0ac2c142d361df138c537aa7e708c9

SHA256
2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

SHA512
b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

Download Submit
memory/1340-11-0x000007FEF6580000-0x000007FEF67FA000-memory.dmp

Filesize
2.5MB

Download
memory/2008-4-0x0000000000000000-mapping.dmp

Download
memory/2008-10-0x0000000005220000-0x0000000005231000-memory.dmp

Filesize
68KB

Download
memory/2008-9-0x0000000004E10000-0x0000000004E21000-memory.dmp

Filesize
68KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads