Malware Analysis Report

2024-12-07 20:39

Sample ID 241122-dh9a5ayrap
Target bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar
SHA256 bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493
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

bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493

Threat Level: Known bad

The file bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar 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

2024-11-22 03:01

Signatures

Strrat family

strrat

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-22 03:01

Reported

2024-11-22 03:04

Platform

win7-20240903-en

Max time kernel

146s

Max time network

149s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar C:\Windows\system32\java.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar\"" C:\Windows\system32\java.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493 = "\"C:\\Program Files\\Java\\jre7\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar\"" C:\Windows\system32\java.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2956 wrote to memory of 308 N/A C:\Windows\system32\java.exe C:\Program Files\Java\jre7\bin\java.exe
PID 2956 wrote to memory of 308 N/A C:\Windows\system32\java.exe C:\Program Files\Java\jre7\bin\java.exe
PID 2956 wrote to memory of 308 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\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar

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

"C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.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/2956-2-0x0000000002500000-0x0000000002770000-memory.dmp

memory/2956-10-0x0000000000440000-0x0000000000441000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar

MD5 1a7a05db5686a51ce39c3b35c111d73f
SHA1 c6ba4712046569c3d6601e5d2f85aeecfabef69b
SHA256 bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493
SHA512 f15d3e2f5cd3a10111c87c2f6c1d8d7bf51fab14f9e6c33ffde067a5c7df2d7f81055d0ba331a840a33ba596cb45e782299f626367a928447a08480d41a3a1c9

memory/2956-17-0x0000000002500000-0x0000000002770000-memory.dmp

memory/308-21-0x0000000002610000-0x0000000002880000-memory.dmp

memory/308-29-0x0000000000140000-0x0000000000141000-memory.dmp

memory/308-31-0x0000000002610000-0x0000000002880000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-22 03:01

Reported

2024-11-22 03:04

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

147s

Command Line

java -jar C:\Users\Admin\AppData\Local\Temp\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar

Signatures

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar\"" C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493 = "\"C:\\Program Files\\Java\\jre-1.8\\bin\\javaw.exe\" -jar \"C:\\Users\\Admin\\AppData\\Roaming\\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.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\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.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\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.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 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 prtoacasedted.3utilities.com udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 217.106.137.52.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 50.23.12.20.in-addr.arpa udp
BG 87.120.115.30:3095 macostopacros.3utilities.com tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
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 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
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
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
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

Files

memory/3784-2-0x000002A8D3730000-0x000002A8D39A0000-memory.dmp

memory/3784-12-0x000002A8D39A0000-0x000002A8D39B0000-memory.dmp

memory/3784-14-0x000002A8D39B0000-0x000002A8D39C0000-memory.dmp

memory/3784-16-0x000002A8D39C0000-0x000002A8D39D0000-memory.dmp

memory/3784-22-0x000002A8D39F0000-0x000002A8D3A00000-memory.dmp

memory/3784-21-0x000002A8D39E0000-0x000002A8D39F0000-memory.dmp

memory/3784-20-0x000002A8D39D0000-0x000002A8D39E0000-memory.dmp

memory/3784-25-0x000002A8D3A00000-0x000002A8D3A10000-memory.dmp

memory/3784-34-0x000002A8D3A20000-0x000002A8D3A30000-memory.dmp

memory/3784-33-0x000002A8D3A10000-0x000002A8D3A20000-memory.dmp

C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493.jar

MD5 1a7a05db5686a51ce39c3b35c111d73f
SHA1 c6ba4712046569c3d6601e5d2f85aeecfabef69b
SHA256 bbd5de9d533b350b86e4d9aa54b6545c6e890c4f263ad27433b2c995faf89493
SHA512 f15d3e2f5cd3a10111c87c2f6c1d8d7bf51fab14f9e6c33ffde067a5c7df2d7f81055d0ba331a840a33ba596cb45e782299f626367a928447a08480d41a3a1c9

memory/3784-35-0x000002A8D3710000-0x000002A8D3711000-memory.dmp

memory/3784-45-0x000002A8D3A20000-0x000002A8D3A30000-memory.dmp

memory/3784-44-0x000002A8D3A00000-0x000002A8D3A10000-memory.dmp

memory/3784-43-0x000002A8D39F0000-0x000002A8D3A00000-memory.dmp

memory/3784-42-0x000002A8D39E0000-0x000002A8D39F0000-memory.dmp

memory/3784-41-0x000002A8D39D0000-0x000002A8D39E0000-memory.dmp

memory/3784-40-0x000002A8D39C0000-0x000002A8D39D0000-memory.dmp

memory/2380-49-0x000001C06B2A0000-0x000001C06B510000-memory.dmp

memory/3784-39-0x000002A8D39B0000-0x000002A8D39C0000-memory.dmp

memory/3784-38-0x000002A8D39A0000-0x000002A8D39B0000-memory.dmp

memory/3784-37-0x000002A8D3730000-0x000002A8D39A0000-memory.dmp

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

MD5 95497c7f9acaef08c706f252a2b9cf93
SHA1 54036801d6ed7d451ab9711d067f7cf61c2df3d7
SHA256 2d00f8e0926babb2ed561f2cdb700fd85e1e9c3255553e99c2a4b466105739ec
SHA512 5fb75a857d516e6531031210890aca0942ac9dc2c3799af66f3ef39e04dac9b6ac1531c23f20b782837a708db19d1502cddc312182607b06b14034a064ead814

memory/2380-61-0x000001C06B510000-0x000001C06B520000-memory.dmp

memory/2380-62-0x000001C06B520000-0x000001C06B530000-memory.dmp

memory/2380-64-0x000001C06B530000-0x000001C06B540000-memory.dmp

memory/2380-66-0x000001C06B540000-0x000001C06B550000-memory.dmp

memory/2380-68-0x000001C06B550000-0x000001C06B560000-memory.dmp

memory/2380-72-0x000001C06B560000-0x000001C06B570000-memory.dmp

memory/2380-74-0x000001C06B570000-0x000001C06B580000-memory.dmp

memory/2380-73-0x000001C06B580000-0x000001C06B590000-memory.dmp

memory/2380-76-0x000001C06B280000-0x000001C06B281000-memory.dmp

memory/2380-77-0x000001C06B2A0000-0x000001C06B510000-memory.dmp

memory/2380-78-0x000001C06B510000-0x000001C06B520000-memory.dmp

memory/2380-80-0x000001C06B520000-0x000001C06B530000-memory.dmp

memory/2380-81-0x000001C06B530000-0x000001C06B540000-memory.dmp

memory/2380-82-0x000001C06B540000-0x000001C06B550000-memory.dmp

memory/2380-83-0x000001C06B550000-0x000001C06B560000-memory.dmp

memory/2380-84-0x000001C06B560000-0x000001C06B570000-memory.dmp

memory/2380-85-0x000001C06B580000-0x000001C06B590000-memory.dmp

memory/2380-86-0x000001C06B570000-0x000001C06B580000-memory.dmp

memory/2380-90-0x000001C06B590000-0x000001C06B5A0000-memory.dmp

memory/2380-91-0x000001C06B590000-0x000001C06B5A0000-memory.dmp