cryptbot | 4ddcf3a4a787e2ffcbd6edff204a911bd784e4f05cbf5f43a82e490fd1e2dfd3

General

Target
AppFile.exe
Size 324.8MB
Sample221220-rlqvvahh38
SHA256 4ddcf3a4a787e2ffcbd6edff204a911bd784e4f05cbf5f43a82e490fd1e2dfd3
MD5 5000b1dcba27abea28423bf3149abb65
SHA1 84d882c835e4b9b4ce30cc7b53ebc470f2a65fe0
SHA512 308de6bd649c074a1d4cbe401d77a1223892c0610370271c59173d654a0f54efe360dc608160f0b6089ca4ad8c32102f6aabb5b4da86f565887ea19c92d37477
SSDEEP 196608:QNLPtb59fs/9rulInB26E2A98Fv++JzATC4C8W:QB9fs/9ruKo61A9MhJzATzC8W
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

C2

http://luahap410.top/gate.php

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4944	mchost.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

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum	AppFile.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	AppFile.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
904	2612	WerFault.exe	80
5016	2612	WerFault.exe	80

Checks processor information in registry 2 TTPs 3 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	AppFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AppFile.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	AppFile.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3192	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2612	AppFile.exe
2612	AppFile.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 2092	2612	AppFile.exe	81
PID 2612 wrote to memory of 2092	2612	AppFile.exe	81
PID 2612 wrote to memory of 2092	2612	AppFile.exe	81
PID 2092 wrote to memory of 3192	2092	cmd.exe	83
PID 2092 wrote to memory of 3192	2092	cmd.exe	83
PID 2092 wrote to memory of 3192	2092	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\AppFile.exe
"C:\Users\Admin\AppData\Local\Temp\AppFile.exe"
1⤵
- Maps connected drives based on registry
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\cmd.exe
  /C schtasks /create /tn \Mozilla\tjtnm /tr """"C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.exe""" """C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.chm"""" /du 9700:20 /sc once /st 00:05 /ri 1 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn \Mozilla\tjtnm /tr """"C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.exe""" """C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.chm"""" /du 9700:20 /sc once /st 00:05 /ri 1 /f
    3⤵
    - Creates scheduled task(s)
    PID:3192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2612 -s 1732
  2⤵
  - Program crash
  PID:904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2612 -s 1740
  2⤵
  - Program crash
  PID:5016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2612 -ip 2612
1⤵
PID:2332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2612 -ip 2612
1⤵
PID:3236

C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.exe
C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.exe "C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.chm"
1⤵
- Executes dropped EXE
PID:4944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

mchost.chm

Path C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.chm
Size 172KB
SHA256 bf431dfaf39b3daa481b16a9593993d3a05e08564bf3b0fbca183d3e6c7ffd86
MD5 96907358470716ecd839c83cbd2bd71c
SHA1 0e68ba16a07d9bb258e871360602ac86cf807e9a
SHA512 cbecc8ad928b2c9ff9d7b121610712f7bc4d9f01b1b14e4f198329ba2a14108196a7c5b6bda70a9939583543f3bffda31a9842d1dccf7f26491fa7226846eeb1
SSDEEP 1536:w5eO5/YeaCQaawN1uw9acOiEuhTsj0y+f9TXssxi/OtUxbNRHx9:aQ7m1ac3g1NRH3
MD5 SHA1 SHA512 SSDEEP

Submit Download

mchost.exe

Path C:\Users\Admin\AppData\Roaming\axjqxdevk\mchost.exe
Size 872KB
SHA256 237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
MD5 c56b5f0201a3b3de53e561fe76912bfd
SHA1 2a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA512 195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
SSDEEP 12288:6pVWeOV7GtINsegA/hMyyzlcqikvAfcN9b2MyZa31twoPTdFxgawV2M01:6T3E53Myyzl0hMf1tr7Caw8M01
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/2612-133-0x0000000014BF0000-0x0000000014CC8000-memory.dmp

Download

memory/2612-135-0x0000000014BF0000-0x0000000014CC8000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads