limerat | 3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41

General

Target

3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe
Size

77KB
MD5

0badb1a758031e5ee6aca7e01e551005
SHA1

3b2094e19a8958d16ddd1914c51b55cc1ef46de7
SHA256

3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41
SHA512

a75b7fb8a78704796ad8af2df84a8f9e61fc14255621fe3ac9d4a7364a966362b7a19086eb3502dedb62969bf188475c181e7e99226d34e87f1cceb40e756077
SSDEEP

1536:4FiOpOK7McctSDnAeVB919Z97CXrRkvXE+QQ4k6P8t5W:eZX/eKnLrZXvXE+QQ4k6P8t5W

Score

10^/10

limerat evasion persistence rat trojan

Malware Config

Extracted

Family

limerat

Wallets

1PwPgp5XGS4VapRjQM1XijgAs2psFeZVGM

Attributes

aes_key
#C^7M3ha6&%678n3VRZet)-D*;zH8Hxa
antivm
false
c2_url
https://pastebin.com/raw/6mZktVr5
delay
35
download_payload
false
install
false
install_name
Windows Update Assistant.exe
main_folder
UserProfile
pin_spread
false
sub_folder
\Microsoft\
usb_spread
true

Signatures

LimeRAT
Simple yet powerful RAT for Windows machines written in .NET.
rat limerat

Executes dropped EXE 1 IoCs

pid	Process
1560	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\Vmware Tools	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Loads dropped DLL 1 IoCs

pid	Process
852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Windows Services = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update Folder\\Windows Update.exe"	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 852 set thread context of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1560	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe
Token: SeDebugPrivilege	1560	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27
PID 852 wrote to memory of 1560	852	3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe	27

C:\Users\Admin\AppData\Local\Temp\3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe
"C:\Users\Admin\AppData\Local\Temp\3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe"
1⤵
- Looks for VMWare Tools registry key
- Loads dropped DLL
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:852
- C:\Users\Admin\AppData\Local\Temp\3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe
  "{path}"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

Modify Registry

Virtualization/Sandbox Evasion

Web Service

Credential Access

Discovery

Query Registry

1

T1012

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Filesize
77KB

MD5
0badb1a758031e5ee6aca7e01e551005

SHA1
3b2094e19a8958d16ddd1914c51b55cc1ef46de7

SHA256
3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41

SHA512
a75b7fb8a78704796ad8af2df84a8f9e61fc14255621fe3ac9d4a7364a966362b7a19086eb3502dedb62969bf188475c181e7e99226d34e87f1cceb40e756077

Download Submit
\Users\Admin\AppData\Local\Temp\3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41.exe

Filesize
77KB

MD5
0badb1a758031e5ee6aca7e01e551005

SHA1
3b2094e19a8958d16ddd1914c51b55cc1ef46de7

SHA256
3fcc4f194e7bc1b894cacb0c09642b9827c9f11ab43180ffcc36ce5c8401bf41

SHA512
a75b7fb8a78704796ad8af2df84a8f9e61fc14255621fe3ac9d4a7364a966362b7a19086eb3502dedb62969bf188475c181e7e99226d34e87f1cceb40e756077

Download Submit
memory/852-57-0x0000000000360000-0x000000000036C000-memory.dmp

Filesize
48KB

Download
memory/852-54-0x00000000012D0000-0x00000000012EC000-memory.dmp

Filesize
112KB

Download
memory/852-56-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/852-55-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1560-59-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-60-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-62-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-66-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-67-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-70-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download
memory/1560-72-0x0000000000080000-0x000000000008C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads