Malware Analysis Report

2024-11-15 05:49

Sample ID 240514-ygkxcsda9z
Target 267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a
SHA256 267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a
Tags
dcrat infostealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a

Threat Level: Known bad

The file 267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a was found to be: Known bad.

Malicious Activity Summary

dcrat infostealer rat

DcRat

DCRat payload

Dcrat family

DCRat payload

Looks up external IP address via web service

Unsigned PE

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-14 19:45

Signatures

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Dcrat family

dcrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-14 19:45

Reported

2024-05-14 19:47

Platform

win7-20240221-en

Max time kernel

138s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe"

Signatures

DcRat

rat infostealer dcrat

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe

"C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 cz63343.tw1.ru udp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.186.192:443 ipinfo.io tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp

Files

memory/552-0-0x000007FEF5873000-0x000007FEF5874000-memory.dmp

memory/552-1-0x0000000000230000-0x0000000000354000-memory.dmp

memory/552-2-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

memory/552-3-0x0000000000570000-0x000000000058C000-memory.dmp

memory/552-4-0x00000000005B0000-0x00000000005C6000-memory.dmp

memory/552-5-0x000007FEF5873000-0x000007FEF5874000-memory.dmp

memory/552-6-0x000007FEF5870000-0x000007FEF625C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-14 19:45

Reported

2024-05-14 19:48

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe"

Signatures

DcRat

rat infostealer dcrat

DCRat payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe

"C:\Users\Admin\AppData\Local\Temp\267c6d4e9f47e320bc83d14ae62a3b3942b5bc52271981a62634be7859d3e41a.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 cz63343.tw1.ru udp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
US 8.8.8.8:53 ipinfo.io udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.247.114.185.in-addr.arpa udp
US 34.117.186.192:443 ipinfo.io tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
US 8.8.8.8:53 192.186.117.34.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
NL 23.62.61.112:443 www.bing.com tcp
US 8.8.8.8:53 112.61.62.23.in-addr.arpa udp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 3.166.122.92.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
RU 185.114.247.232:80 cz63343.tw1.ru tcp
US 8.8.8.8:53 udp

Files

memory/1620-0-0x00007FFDE63E3000-0x00007FFDE63E5000-memory.dmp

memory/1620-1-0x0000000000C30000-0x0000000000D54000-memory.dmp

memory/1620-2-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp

memory/1620-3-0x0000000003090000-0x00000000030AC000-memory.dmp

memory/1620-5-0x00000000030B0000-0x00000000030C6000-memory.dmp

memory/1620-4-0x000000001BA10000-0x000000001BA60000-memory.dmp

memory/1620-6-0x00007FFDE63E3000-0x00007FFDE63E5000-memory.dmp

memory/1620-7-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp