cryptbot | a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1

General

Target

a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
Size

1.4MB
MD5

2bc34e438ca77b1bd221f5d3c78bf626
SHA1

ca4cff06072f467b19cc4828f5db99789405ed33
SHA256

a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1
SHA512

d4681fde0cb0432cfec9fa12230dee65236219e0238ecdeb435b351d6ffdf0936a05877eb7103c228822b6bbfbe2a850d02ddc6ac2c47faab9acd7bd3ad82296
SSDEEP

24576:wBkVdlYA/I7jql9Rx53iaauEGVnWOQll0BPVjAuZZKOQmiVAOIM1:QsvijqHJzEqnWOqlAvQm6AOd1

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Signatures

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

Detects CryptBot payload 1 IoCs

CryptBot is a C++ stealer distributed widely in bundle with other software.

spyware stealer

resource	yara_rule
behavioral1/memory/2796-16-0x0000000069CC0000-0x000000006A377000-memory.dmp	family_cryptbot_v3

Executes dropped EXE 4 IoCs

pid	Process
2796	VC_redist.x86.exe
576	service123.exe
1720	service123.exe
2184	service123.exe

Loads dropped DLL 9 IoCs

pid	Process
2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
2796	VC_redist.x86.exe
2796	VC_redist.x86.exe
576	service123.exe
1720	service123.exe
2184	service123.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VC_redist.x86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	VC_redist.x86.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	VC_redist.x86.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2160	schtasks.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2796	2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe	30
PID 2400 wrote to memory of 2796	2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe	30
PID 2400 wrote to memory of 2796	2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe	30
PID 2400 wrote to memory of 2796	2400	a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe	30
PID 2796 wrote to memory of 576	2796	VC_redist.x86.exe	32
PID 2796 wrote to memory of 576	2796	VC_redist.x86.exe	32
PID 2796 wrote to memory of 576	2796	VC_redist.x86.exe	32
PID 2796 wrote to memory of 576	2796	VC_redist.x86.exe	32
PID 2796 wrote to memory of 2160	2796	VC_redist.x86.exe	33
PID 2796 wrote to memory of 2160	2796	VC_redist.x86.exe	33
PID 2796 wrote to memory of 2160	2796	VC_redist.x86.exe	33
PID 2796 wrote to memory of 2160	2796	VC_redist.x86.exe	33
PID 2756 wrote to memory of 1720	2756	taskeng.exe	36
PID 2756 wrote to memory of 1720	2756	taskeng.exe	36
PID 2756 wrote to memory of 1720	2756	taskeng.exe	36
PID 2756 wrote to memory of 1720	2756	taskeng.exe	36
PID 2756 wrote to memory of 2184	2756	taskeng.exe	37
PID 2756 wrote to memory of 2184	2756	taskeng.exe	37
PID 2756 wrote to memory of 2184	2756	taskeng.exe	37
PID 2756 wrote to memory of 2184	2756	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe
"C:\Users\Admin\AppData\Local\Temp\a8e346ffc6596103bdf543cf2935c3322bde36047144bbc450e20fa1f05438b1.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:2796
- - C:\Users\Admin\AppData\Local\Temp\service123.exe
    "C:\Users\Admin\AppData\Local\Temp\service123.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:576
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /tn "ServiceData4" /tr "C:\Users\Admin\AppData\Local\Temp\/service123.exe" /st 00:01 /du 9800:59 /sc once /ri 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2160

C:\Windows\system32\taskeng.exe
taskeng.exe {CE37406A-8EF9-485C-A3C4-3FD8B5E76229} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1720
- C:\Users\Admin\AppData\Local\Temp\service123.exe
  C:\Users\Admin\AppData\Local\Temp\/service123.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2184

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\VC_redist.x86.exe

Filesize
7.2MB

MD5
52cca4535026d44d04230373590f57fa

SHA1
10c8b3e51a71d8adca731b985c34163a320b32c4

SHA256
ac35fc427952d4a283f69a51c9a166e61bc72072177f6aabbee5a62fe9ece2a0

SHA512
54233882c2a8e7ed26d649527739ff28be185e8b0f62e66addef28a1638a0ced3614cb2d86a7691bf32f985541cd8674644b128e135f6bf7d5258a55c1336c41

Download Submit
memory/576-42-0x0000000000140000-0x0000000000152000-memory.dmp

Filesize
72KB

Download
memory/576-43-0x00000000748A0000-0x00000000749D4000-memory.dmp

Filesize
1.2MB

Download
memory/1720-53-0x0000000000140000-0x0000000000152000-memory.dmp

Filesize
72KB

Download
memory/2184-68-0x0000000000140000-0x0000000000152000-memory.dmp

Filesize
72KB

Download
memory/2796-16-0x0000000069CC0000-0x000000006A377000-memory.dmp

Filesize
6.7MB

Download
memory/2796-25-0x0000000000910000-0x000000000103E000-memory.dmp

Filesize
7.2MB

Download
memory/2796-40-0x0000000000910000-0x000000000103E000-memory.dmp

Filesize
7.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads