growtopia | c28331ddbb9f519cfe6b6dbed4f947438e2a1aa5e09a583a44321152d9bdfe90

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2023 18:49

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General

Target

f01ed61c293a838f8db9cd86e84eaeee.exe
Size

13KB
MD5

f01ed61c293a838f8db9cd86e84eaeee
SHA1

f052e9481b6613588474c90395cc7a3b9339f71c
SHA256

c28331ddbb9f519cfe6b6dbed4f947438e2a1aa5e09a583a44321152d9bdfe90
SHA512

a5273c7be22b73682e9ad02c8fc6eacd4a1161335bcba1b80ac470cece1270ab24c72a88529f449e48beba8fa6b1a2cb19f104ec291bc879f3ebede406309c18
SSDEEP

192:F63ft5sW0h0ExU+XP5aJf9lJMCl7M+J5068KcwuZ:mtKW/aP8Jf9/XJM8pu

Score

10^/10

growtopia persistence stealer

Malware Config

Extracted

Family

growtopia

https://discord.com/api/webhooks/868185685511798824/n1UTeZkfBFoxLWBaV9dnLZ0QpTexYyhEZWPPeMAw8jxUZJ6gQkBUFF9Om3akpjQoXALi

Attributes

payload_url
https://cdn.discordapp.com/attachments/805061254648954893/845198803157123072/savedecrypter.exe

https://cdn.discordapp.com/attachments/831259039135563876/844989460450115584/Screenshot_2.png

Signatures

Growtopia
Growtopa is an opensource modular stealer written in C#.
stealer growtopia

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f01ed61c293a838f8db9cd86e84eaeee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\C:\Users\Admin\AppData\Local\Temp\f01ed61c293a838f8db9cd86e84eaeee.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f01ed61c293a838f8db9cd86e84eaeee.exe"	f01ed61c293a838f8db9cd86e84eaeee.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

50 icanhazip.com
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3500 4308 WerFault.exe f01ed61c293a838f8db9cd86e84eaeee.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f01ed61c293a838f8db9cd86e84eaeee.exe

description pid process

Token: SeDebugPrivilege 4308 f01ed61c293a838f8db9cd86e84eaeee.exe

flow	ioc
50	icanhazip.com

pid	pid_target	process	target process
3500	4308	WerFault.exe	f01ed61c293a838f8db9cd86e84eaeee.exe

description	pid	process
Token: SeDebugPrivilege	4308	f01ed61c293a838f8db9cd86e84eaeee.exe

C:\Users\Admin\AppData\Local\Temp\f01ed61c293a838f8db9cd86e84eaeee.exe
"C:\Users\Admin\AppData\Local\Temp\f01ed61c293a838f8db9cd86e84eaeee.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:4308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4308 -s 2144
  2⤵
  - Program crash
  PID:3500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4308 -ip 4308
1⤵
PID:4768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4308-0-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/4308-1-0x0000000000C60000-0x0000000000C6A000-memory.dmp

Filesize
40KB

Download
memory/4308-2-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/4308-3-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/4308-4-0x0000000005700000-0x0000000005710000-memory.dmp

Filesize
64KB

Download
memory/4308-5-0x0000000006F30000-0x0000000006FC2000-memory.dmp

Filesize
584KB

Download
memory/4308-6-0x0000000005700000-0x0000000005710000-memory.dmp

Filesize
64KB

Download
memory/4308-7-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download