Malware Analysis Report

2025-08-05 14:28

Sample ID 231123-jx8k2ahd6z
Target 23112023_1603_codernna.jpg
SHA256 ddf1c022c77790790f19379b260177048ea28f8dfacb0f5c8c8514fd699ab836
Tags
rat nna asyncrat zgrat spyware stealer
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

ddf1c022c77790790f19379b260177048ea28f8dfacb0f5c8c8514fd699ab836

Threat Level: Known bad

The file 23112023_1603_codernna.jpg was found to be: Known bad.

Malicious Activity Summary

rat nna asyncrat zgrat spyware stealer

Async RAT payload

Zgrat family

Asyncrat family

Detect ZGRat V1

AsyncRat

Async RAT payload

Reads user/profile data of web browsers

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-11-23 08:04

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Detect ZGRat V1

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

Zgrat family

zgrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-11-23 08:04

Reported

2023-11-23 08:08

Platform

win7-20231025-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Reads user/profile data of web browsers

spyware stealer

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe

"C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:6606 buike.kozow.com tcp

Files

memory/800-0-0x0000000000B20000-0x0000000000B36000-memory.dmp

memory/800-1-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/800-2-0x0000000004A40000-0x0000000004A80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab5F13.tmp

MD5 f3441b8572aae8801c04f3060b550443
SHA1 4ef0a35436125d6821831ef36c28ffaf196cda15
SHA256 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf
SHA512 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

C:\Users\Admin\AppData\Local\Temp\Tar7506.tmp

MD5 9441737383d21192400eca82fda910ec
SHA1 725e0d606a4fc9ba44aa8ffde65bed15e65367e4
SHA256 bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5
SHA512 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

memory/800-73-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/800-74-0x0000000004A40000-0x0000000004A80000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-11-23 08:04

Reported

2023-11-23 08:08

Platform

win10v2004-20231020-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Reads user/profile data of web browsers

spyware stealer

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe

"C:\Users\Admin\AppData\Local\Temp\23112023_1603_codernna.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:7707 buike.kozow.com tcp
US 8.8.8.8:53 110.22.137.45.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
US 8.8.8.8:53 126.20.238.8.in-addr.arpa udp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:6606 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp
NL 45.137.22.110:7707 buike.kozow.com tcp
US 8.8.8.8:53 88.16.208.104.in-addr.arpa udp
US 8.8.8.8:53 buike.kozow.com udp
NL 45.137.22.110:7707 buike.kozow.com tcp
NL 45.137.22.110:8808 buike.kozow.com tcp

Files

memory/4816-0-0x0000000074770000-0x0000000074F20000-memory.dmp

memory/4816-1-0x0000000000AD0000-0x0000000000AE6000-memory.dmp

memory/4816-2-0x00000000054B0000-0x00000000054C0000-memory.dmp

memory/4816-3-0x0000000005D70000-0x0000000006314000-memory.dmp

memory/4816-4-0x0000000005960000-0x00000000059F2000-memory.dmp

memory/4816-5-0x0000000005940000-0x000000000594A000-memory.dmp

memory/4816-8-0x0000000006AA0000-0x0000000006B3C000-memory.dmp

memory/4816-9-0x0000000006590000-0x00000000065F6000-memory.dmp

memory/4816-10-0x0000000074770000-0x0000000074F20000-memory.dmp

memory/4816-11-0x00000000054B0000-0x00000000054C0000-memory.dmp