Malware Analysis Report

2024-12-07 20:39

Sample ID 241121-phyeeawqal
Target MIS_FILE_9888123_RECEIVED_xsls.zip
SHA256 538aefe2d62a53a7b5991a4acda23b8f04aeba4fee1959018ddc375ed6858e5b
Tags
strrat persistence
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

538aefe2d62a53a7b5991a4acda23b8f04aeba4fee1959018ddc375ed6858e5b

Threat Level: Known bad

The file MIS_FILE_9888123_RECEIVED_xsls.zip was found to be: Known bad.

Malicious Activity Summary

strrat persistence

Strrat family

Drops startup file

Adds Run key to start application

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-21 12:20

Signatures

Strrat family

strrat

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-21 12:20

Reported

2024-11-21 12:22

Platform

win7-20240903-en

Max time kernel

149s

Max time network

150s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\MIS_FILE_9888123_RECEIVED_xsls.jar

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MIS_FILE_9888123_RECEIVED_xsls.jar C:\Windows\system32\java.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MIS_FILE_9888123_RECEIVED_xsls = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\MIS_FILE_9888123_RECEIVED_xsls.jar\"" C:\Windows\system32\java.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MIS_FILE_9888123_RECEIVED_xsls = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\MIS_FILE_9888123_RECEIVED_xsls.jar\"" C:\Windows\system32\java.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2764 wrote to memory of 2636 N/A C:\Windows\system32\java.exe C:\Program Files\Java\jre7\bin\java.exe
PID 2764 wrote to memory of 2636 N/A C:\Windows\system32\java.exe C:\Program Files\Java\jre7\bin\java.exe
PID 2764 wrote to memory of 2636 N/A C:\Windows\system32\java.exe C:\Program Files\Java\jre7\bin\java.exe

Processes

C:\Windows\system32\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\MIS_FILE_9888123_RECEIVED_xsls.jar

C:\Program Files\Java\jre7\bin\java.exe

"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\MIS_FILE_9888123_RECEIVED_xsls.jar"

Network

Country Destination Domain Proto
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp

Files

memory/2764-2-0x0000000002630000-0x00000000028A0000-memory.dmp

memory/2764-10-0x0000000001B70000-0x0000000001B71000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\MIS_FILE_9888123_RECEIVED_xsls.jar

MD5 1a7a05db5686a51ce39c3b35c111d73f
SHA1 c6ba4712046569c3d6601e5d2f85aeecfabef69b
SHA256 bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493
SHA512 f15d3e2f5cd3a10111c87c2f6c1d8d7bf51fab14f9e6c33ffde067a5c7df2d7f81055d0ba331a840a33ba596cb45e782299f626367a928447a08480d41a3a1c9

memory/2764-18-0x0000000002630000-0x00000000028A0000-memory.dmp

memory/2636-21-0x0000000002620000-0x0000000002890000-memory.dmp

memory/2636-29-0x0000000000140000-0x0000000000141000-memory.dmp

memory/2636-30-0x0000000000140000-0x0000000000141000-memory.dmp

memory/2636-31-0x0000000002620000-0x0000000002890000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-21 12:20

Reported

2024-11-21 12:23

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

149s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\MIS_FILE_9888123_RECEIVED_xsls.jar

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MIS_FILE_9888123_RECEIVED_xsls.jar C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MIS_FILE_9888123_RECEIVED_xsls = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\MIS_FILE_9888123_RECEIVED_xsls.jar\"" C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MIS_FILE_9888123_RECEIVED_xsls = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\MIS_FILE_9888123_RECEIVED_xsls.jar\"" C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A

Processes

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe

java -jar C:\Users\Admin\AppData\Local\Temp\MIS_FILE_9888123_RECEIVED_xsls.jar

C:\Program Files\Java\jre-1.8\bin\java.exe

"C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\MIS_FILE_9888123_RECEIVED_xsls.jar"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 138.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 71.209.201.84.in-addr.arpa udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 macostopacros.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp

Files

memory/4720-2-0x0000018494650000-0x00000184948C0000-memory.dmp

memory/4720-12-0x00000184948C0000-0x00000184948D0000-memory.dmp

memory/4720-14-0x00000184948D0000-0x00000184948E0000-memory.dmp

memory/4720-16-0x00000184948E0000-0x00000184948F0000-memory.dmp

memory/4720-18-0x00000184948F0000-0x0000018494900000-memory.dmp

memory/4720-21-0x0000018494900000-0x0000018494910000-memory.dmp

memory/4720-22-0x0000018494910000-0x0000018494920000-memory.dmp

memory/4720-24-0x0000018494920000-0x0000018494930000-memory.dmp

memory/4720-26-0x0000018494930000-0x0000018494940000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\MIS_FILE_9888123_RECEIVED_xsls.jar

MD5 1a7a05db5686a51ce39c3b35c111d73f
SHA1 c6ba4712046569c3d6601e5d2f85aeecfabef69b
SHA256 bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493
SHA512 f15d3e2f5cd3a10111c87c2f6c1d8d7bf51fab14f9e6c33ffde067a5c7df2d7f81055d0ba331a840a33ba596cb45e782299f626367a928447a08480d41a3a1c9

memory/4720-32-0x0000018492DE0000-0x0000018492DE1000-memory.dmp

memory/4720-40-0x0000018494910000-0x0000018494920000-memory.dmp

memory/4720-41-0x0000018494920000-0x0000018494930000-memory.dmp

memory/4720-42-0x0000018494930000-0x0000018494940000-memory.dmp

memory/4720-39-0x0000018494900000-0x0000018494910000-memory.dmp

memory/4720-38-0x00000184948F0000-0x0000018494900000-memory.dmp

memory/2936-46-0x000001B59B550000-0x000001B59B7C0000-memory.dmp

memory/4720-37-0x00000184948E0000-0x00000184948F0000-memory.dmp

memory/4720-36-0x00000184948D0000-0x00000184948E0000-memory.dmp

memory/4720-35-0x00000184948C0000-0x00000184948D0000-memory.dmp

memory/4720-34-0x0000018494650000-0x00000184948C0000-memory.dmp

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

MD5 59308024bfb2843ec1ee3fc17ced6a30
SHA1 75fb56bcc4f62ca59b452e9f053faf26264c695f
SHA256 95d8ef4f2cd755ee0a84f2ef902eaa1e2691194723dd0713b2c7b723e4de1380
SHA512 c52b6f928f13c998aa6e5dbb3d65a2af4e3ef2a9463602a3cbbd7fe299ee26d2f527e52181a591a8009ab8f8b87ea6e41034bdb0a7b6e94bf973f84569e50ebd

memory/2936-57-0x000001B59B7C0000-0x000001B59B7D0000-memory.dmp

memory/2936-59-0x000001B59B7D0000-0x000001B59B7E0000-memory.dmp

memory/2936-62-0x000001B59B7E0000-0x000001B59B7F0000-memory.dmp

memory/2936-63-0x000001B59B7F0000-0x000001B59B800000-memory.dmp

memory/2936-65-0x000001B59B800000-0x000001B59B810000-memory.dmp

memory/2936-68-0x000001B59B810000-0x000001B59B820000-memory.dmp

memory/2936-70-0x000001B59B820000-0x000001B59B830000-memory.dmp

memory/2936-71-0x000001B599CA0000-0x000001B599CA1000-memory.dmp

memory/2936-74-0x000001B59B830000-0x000001B59B840000-memory.dmp

memory/2936-76-0x000001B59B550000-0x000001B59B7C0000-memory.dmp

memory/2936-77-0x000001B59B7C0000-0x000001B59B7D0000-memory.dmp

memory/2936-79-0x000001B59B7D0000-0x000001B59B7E0000-memory.dmp

memory/2936-80-0x000001B59B7E0000-0x000001B59B7F0000-memory.dmp

memory/2936-81-0x000001B59B7F0000-0x000001B59B800000-memory.dmp

memory/2936-82-0x000001B59B800000-0x000001B59B810000-memory.dmp

memory/2936-83-0x000001B59B810000-0x000001B59B820000-memory.dmp

memory/2936-84-0x000001B59B820000-0x000001B59B830000-memory.dmp

memory/2936-85-0x000001B59B830000-0x000001B59B840000-memory.dmp

memory/2936-86-0x000001B59B840000-0x000001B59B850000-memory.dmp

memory/2936-87-0x000001B59B850000-0x000001B59B860000-memory.dmp