cryptbot | 2ce81e2dd2330f10eb414e56222cd1ba4c26591381f07e199b08f623b8c4b8f9

Analysis

max time kernel
125s
max time network
125s
platform
windows10_x64
resource
win10v20201028
submitted
27/03/2021, 19:32

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General

Target
SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe
Size 644KB
Sample210327-bhd2f9smta
SHA256 2ce81e2dd2330f10eb414e56222cd1ba4c26591381f07e199b08f623b8c4b8f9
MD5 b68f0ee033a8cd19ce47f6ae4f0eaee4
SHA1 129e9dd019f62810a669b29bf44e3eca485c9c5a
SHA512 bf152424f47b407ce990ade08d784d33bae18c0747622eb4df97455d901b54b7e5053cb0823e31f8b79905f2da86ac29440a035493299b19d54ed1b6de9e1fdb
MD5 SHA1 SHA512

Score

10^/10

cryptbot discovery spyware stealer

Malware Config

Extracted

Family

cryptbot

bafoe62.top
morurt06.top

Attributes

payload_url
http://akpgi08.top/download.php?file=lv.exe

Signatures

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

CryptBot Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1212-3-0x00000000025F0000-0x00000000026CF000-memory.dmp	family_cryptbot
behavioral2/memory/1212-4-0x0000000000400000-0x00000000004E3000-memory.dmp	family_cryptbot

Blocklisted process makes network request 4 IoCs

flow	pid	Process
34	416	WScript.exe
36	416	WScript.exe
38	416	WScript.exe
40	416	WScript.exe

Downloads MZ/PE file

Executes dropped EXE 4 IoCs

pid	Process
3520	Lunyt.exe
3108	Sul.exe.com
936	Sul.exe.com
2232	txactnwmqrq.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
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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
19	ip-api.com

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 4 IoCs

Processor 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\CentralProcessor\0\ProcessorNameString	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Sul.exe.com
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Sul.exe.com
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2060	timeout.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000_Classes\Local Settings	Sul.exe.com

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	WScript.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	WScript.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2180	PING.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe
1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 3520	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	79
PID 1212 wrote to memory of 3520	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	79
PID 1212 wrote to memory of 3520	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	79
PID 1212 wrote to memory of 1364	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	80
PID 1212 wrote to memory of 1364	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	80
PID 1212 wrote to memory of 1364	1212	SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe	80
PID 1364 wrote to memory of 2060	1364	cmd.exe	82
PID 1364 wrote to memory of 2060	1364	cmd.exe	82
PID 1364 wrote to memory of 2060	1364	cmd.exe	82
PID 3520 wrote to memory of 4048	3520	Lunyt.exe	83
PID 3520 wrote to memory of 4048	3520	Lunyt.exe	83
PID 3520 wrote to memory of 4048	3520	Lunyt.exe	83
PID 3520 wrote to memory of 3900	3520	Lunyt.exe	85
PID 3520 wrote to memory of 3900	3520	Lunyt.exe	85
PID 3520 wrote to memory of 3900	3520	Lunyt.exe	85
PID 3900 wrote to memory of 2756	3900	cmd.exe	87
PID 3900 wrote to memory of 2756	3900	cmd.exe	87
PID 3900 wrote to memory of 2756	3900	cmd.exe	87
PID 2756 wrote to memory of 2764	2756	cmd.exe	88
PID 2756 wrote to memory of 2764	2756	cmd.exe	88
PID 2756 wrote to memory of 2764	2756	cmd.exe	88
PID 2756 wrote to memory of 3108	2756	cmd.exe	89
PID 2756 wrote to memory of 3108	2756	cmd.exe	89
PID 2756 wrote to memory of 3108	2756	cmd.exe	89
PID 2756 wrote to memory of 2180	2756	cmd.exe	90
PID 2756 wrote to memory of 2180	2756	cmd.exe	90
PID 2756 wrote to memory of 2180	2756	cmd.exe	90
PID 3108 wrote to memory of 936	3108	Sul.exe.com	91
PID 3108 wrote to memory of 936	3108	Sul.exe.com	91
PID 3108 wrote to memory of 936	3108	Sul.exe.com	91
PID 936 wrote to memory of 2232	936	Sul.exe.com	92
PID 936 wrote to memory of 2232	936	Sul.exe.com	92
PID 936 wrote to memory of 2232	936	Sul.exe.com	92
PID 936 wrote to memory of 1880	936	Sul.exe.com	93
PID 936 wrote to memory of 1880	936	Sul.exe.com	93
PID 936 wrote to memory of 1880	936	Sul.exe.com	93
PID 936 wrote to memory of 416	936	Sul.exe.com	94
PID 936 wrote to memory of 416	936	Sul.exe.com	94
PID 936 wrote to memory of 416	936	Sul.exe.com	94

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe"
1⤵
- Checks processor information in registry
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\Lunyt.exe
  "C:\Users\Admin\AppData\Local\Temp\Lunyt.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Windows\SysWOW64\at.exe
    "C:\Windows\System32\at.exe"
    3⤵
    PID:4048
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c C:\Windows\system32\cmd.exe < Sia.mid
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3900
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2756
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr /V /R "^sqZPiXvLzDYkNszeALrJmTZIWbPkHfMPSMhcBWstuiZlwoihFdkUquJbqdSKilttRpzqtYBExYCsTPHOfBGdrRPLrPx$" Mese.mid
        5⤵
        
        PID:2764
    - - C:\Users\Admin\AppData\Roaming\DLRHDHLXFrBlrn\Sul.exe.com
        
        Sul.exe.com S
        5⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:3108
      - C:\Users\Admin\AppData\Roaming\DLRHDHLXFrBlrn\Sul.exe.com
        
        C:\Users\Admin\AppData\Roaming\DLRHDHLXFrBlrn\Sul.exe.com S
        6⤵
        Executes dropped EXE
        Checks processor information in registry
        Modifies registry class
        Suspicious use of WriteProcessMemory
        
        PID:936
        
        C:\Users\Admin\AppData\Local\Temp\txactnwmqrq.exe
        
        "C:\Users\Admin\AppData\Local\Temp\txactnwmqrq.exe"
        7⤵
        Executes dropped EXE
        
        PID:2232
        
        C:\Windows\SysWOW64\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\oqjwusjilv.vbs"
        7⤵
        
        PID:1880
        
        C:\Windows\SysWOW64\WScript.exe
        
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\efntreug.vbs"
        7⤵
        Blocklisted process makes network request
        Modifies system certificate store
        
        PID:416
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 127.0.0.1 -n 30
        5⤵
        Runs ping.exe
        
        PID:2180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\jZbyEcYYc & timeout 3 & del /f /q "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PWS.Siggen2.63733.4520.11539.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1364
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Web Service

T1102

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/936-30-0x0000000003120000-0x0000000003121000-memory.dmp

Download

memory/1212-2-0x00000000027E0000-0x00000000027E1000-memory.dmp

Download

memory/1212-3-0x00000000025F0000-0x00000000026CF000-memory.dmp

Download

memory/1212-4-0x0000000000400000-0x00000000004E3000-memory.dmp

Download

memory/2232-37-0x00000000032A0000-0x00000000032A1000-memory.dmp

Download

memory/2232-38-0x00000000032A0000-0x0000000003997000-memory.dmp

Download

memory/2232-39-0x0000000000400000-0x0000000000B02000-memory.dmp

Download

memory/2232-40-0x0000000000F50000-0x0000000000F51000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads