Malware Analysis Report

2025-01-02 12:16

Sample ID 240419-gvt9hsbf5s
Target f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118
SHA256 5d58c5fa7aa0f5a8c4d2448b0f5fbb8ffb835228bcb3e4b6fa53f5593a2166bb
Tags
asyncrat default rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5d58c5fa7aa0f5a8c4d2448b0f5fbb8ffb835228bcb3e4b6fa53f5593a2166bb

Threat Level: Known bad

The file f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

asyncrat default rat

AsyncRat

CustAttr .NET packer

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-19 06:08

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-19 06:07

Reported

2024-04-19 06:10

Platform

win10v2004-20240412-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

Signatures

AsyncRat

rat asyncrat

CustAttr .NET packer

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3216 wrote to memory of 3960 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3216 wrote to memory of 3960 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3216 wrote to memory of 3960 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 3216 wrote to memory of 556 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IyZioDdm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB0C.tmp"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
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 8.8.8.8:53 156.33.209.4.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 maximumthousands.ddns.net udp
US 8.8.8.8:53 201.201.50.20.in-addr.arpa udp

Files

memory/3216-0-0x0000000000EA0000-0x0000000000FE4000-memory.dmp

memory/3216-1-0x0000000074580000-0x0000000074D30000-memory.dmp

memory/3216-2-0x0000000005990000-0x0000000005A2C000-memory.dmp

memory/3216-3-0x0000000005FE0000-0x0000000006584000-memory.dmp

memory/3216-4-0x0000000005AD0000-0x0000000005B62000-memory.dmp

memory/3216-5-0x0000000005950000-0x0000000005960000-memory.dmp

memory/3216-6-0x0000000005A40000-0x0000000005A4A000-memory.dmp

memory/3216-7-0x0000000005C60000-0x0000000005CB6000-memory.dmp

memory/3216-8-0x0000000005E60000-0x0000000005E72000-memory.dmp

memory/3216-9-0x0000000074580000-0x0000000074D30000-memory.dmp

memory/3216-10-0x0000000005950000-0x0000000005960000-memory.dmp

memory/3216-11-0x00000000072C0000-0x0000000007342000-memory.dmp

memory/3216-12-0x0000000009790000-0x00000000097A2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpEB0C.tmp

MD5 85089f36a694d2a382977d5f254bdd00
SHA1 f64cdc8df6163a06529a5a88515f7a9d3aa1ba7a
SHA256 da0a9e2411c164e4205cc20eed3bbd36c11be697de355c8012b716e8167260f1
SHA512 20e34742d76fe1e269e9b55eb6a6d2a2a2db4639aae530043cc2ccea9955dbc2c1e6582f99dd9d490d8f35a6334d59d13a338a376cb0a89bae53a98bf4ecb212

memory/556-18-0x0000000000400000-0x0000000000412000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe.log

MD5 17573558c4e714f606f997e5157afaac
SHA1 13e16e9415ceef429aaf124139671ebeca09ed23
SHA256 c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
SHA512 f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

memory/556-21-0x0000000074580000-0x0000000074D30000-memory.dmp

memory/3216-22-0x0000000074580000-0x0000000074D30000-memory.dmp

memory/556-23-0x0000000005A50000-0x0000000005A60000-memory.dmp

memory/556-24-0x0000000074580000-0x0000000074D30000-memory.dmp

memory/556-25-0x0000000005A50000-0x0000000005A60000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-19 06:07

Reported

2024-04-19 06:10

Platform

win7-20240221-en

Max time kernel

118s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

Signatures

CustAttr .NET packer

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

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1084 wrote to memory of 2372 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 2372 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 2372 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 2372 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1084 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2360 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2380 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2416 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe
PID 1084 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IyZioDdm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FAD.tmp"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f9aa0da1d22e2f553aff22b60c476c02_JaffaCakes118.exe"

Network

N/A

Files

memory/1084-1-0x0000000074700000-0x0000000074DEE000-memory.dmp

memory/1084-0-0x00000000002E0000-0x0000000000424000-memory.dmp

memory/1084-2-0x0000000004A30000-0x0000000004A70000-memory.dmp

memory/1084-3-0x0000000000490000-0x00000000004A2000-memory.dmp

memory/1084-4-0x0000000074700000-0x0000000074DEE000-memory.dmp

memory/1084-5-0x0000000004A30000-0x0000000004A70000-memory.dmp

memory/1084-6-0x0000000005130000-0x00000000051B2000-memory.dmp

memory/1084-7-0x0000000000600000-0x0000000000612000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5FAD.tmp

MD5 9e62cdcb26a58838fb3b9f3b7b8b09a5
SHA1 bc51c5a4fd2f13958404ac8c955b6f0825476425
SHA256 afd5a943ec22aad33ab0b8675f5aa988147df6aaa312323da9157b301e29fc71
SHA512 85558412a0a33ca6e21309957dc94d30e9d60cf72ce934f78d60ddf4ca3b40e2772943dc81f9909e685bf5ead53570ae4671dcf3ec0c15ca8cd84fec5f3cff98

memory/1084-13-0x0000000074700000-0x0000000074DEE000-memory.dmp