cryptbot | b7683441e42f706642877d1a92c5307d223b1e6195d463f1ad9332e7e6ac5a91

Analysis

max time kernel
146s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
27-05-2024 17:03

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General

Target

Setup.exe
Size

2.2MB
MD5

b5861c96767caed4fce1473ac338d1bf
SHA1

c9575e657706a01a28aa63943f39018377a5dfe1
SHA256

883ecab1d18c6e8153b56541df2df4980a27f5faa93ba2b42ff1dd14a8f4c161
SHA512

388bb192a27442c80f0ece67ef5e43ec6e148e24aa4634a524d3e7ec3cbd78b11bd4a200d76610168efd52711af8e3d6b2773088f09630843d9cfd6a02ab2240
SSDEEP

49152:IYgNe1kDmRGkWDDWaBZmnr+KHhhg9EKDYhKk:IHahRGh7ZmxHhNKDYhKk

Score

10^/10

cryptbot discovery evasion spyware stealer

Malware Config

Extracted

Family

cryptbot

biss01.info

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

Processes:

Setup.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 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

Processes:

Setup.exe

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

Processes:

Setup.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Wine Setup.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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
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

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

Processes:

Setup.exe

pid process

1612 Setup.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Setup.exe

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

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Wine	Setup.exe

flow	ioc
3	ip-api.com

pid	process
1612	Setup.exe

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:

Setup.exe

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

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Setup.exe

pid process

1612 Setup.exe
Suspicious use of FindShellTrayWindow 12 IoCs

Processes:

Setup.exe

pid process

1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe
1612 Setup.exe

pid	process
1612	Setup.exe

pid	process
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe
1612	Setup.exe

C:\Users\Admin\AppData\Local\Temp\Setup.exe
"C:\Users\Admin\AppData\Local\Temp\Setup.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- 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:1612

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\ProgramData\AUvDrpey1b\47283761.txt
Filesize
156B

MD5
b5089e0c5a3d5377e9bd19c0557ef04e

SHA1
9402e326be3d240e234c06892b15c24e93c93eb8

SHA256
d77789b2c49759c882f4fdd6f53e665b0d012f8f0949d0150eaba47fbf2a0eb5

SHA512
942349ccb99854f274ef1e20b623660588e15bd0d25bfc817fe9b2d010db656af340652e0e67b41edbf0cf259d55ab880d6b50acb1d7e8ab394f1393f7956c13

Download Submit
C:\ProgramData\AUvDrpey1b\Files\_Info.txt
Filesize
1KB

MD5
e55f2b73ce06d0aa734d5a69ff66d415

SHA1
d42df12d27c9ffdcfd00f8124a4b0fbf8793b5ae

SHA256
d092dc96dc9e957a93eb87abd3a0524c8894df1e2ee4ef4212572c1f9a51f7df

SHA512
ab031e10797657473065739038cee0a34dff3bb8755341651cffc13e7965731da0c084ebf69171550fab2289203b139da2485e5b1b53212a71faebe2b50b509e

Download Submit
C:\ProgramData\AUvDrpey1b\FydbA5aSNG.zip
Filesize
922KB

MD5
88c4e097b70bb927aa34fa5546ae5213

SHA1
3d878a8bb3dadd9ce6e7bce3f743ca9c939ed87e

SHA256
1ab25d99f9e9e26b1bb11f1f92fb2bb7b032a9a49df75a9084d890363c74c0ad

SHA512
89b5c22a6d24f6caed540d7aaae4a21b074f764e147e85644909f1d2a1e840340424082ed24376044013f72d5b608bebe62fc8d1c9b8d989198c0160626dfbbb

Download Submit
memory/1612-51-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-53-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-12-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-9-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-35-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-43-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-45-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-46-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-47-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-49-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-50-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-0-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-5-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-15-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-54-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-56-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-59-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-61-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-64-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-66-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-69-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-71-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-73-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-75-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-78-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download
memory/1612-80-0x0000000001290000-0x00000000017DF000-memory.dmp

Filesize
5.3MB

Download