limerat | 987b518b7a461694585044a73f4121f88faf5ff4b6ab9575cbeb717f802fc606

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 08:54

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General

Target

cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe
Size

584KB
MD5

cc831ad19cbc20cb70449e19ff022b21
SHA1

1f785bded0c389b6c97f11fbb9a406f449b346e5
SHA256

987b518b7a461694585044a73f4121f88faf5ff4b6ab9575cbeb717f802fc606
SHA512

00b2f40ded61b4afde9f33f2f58ee7592b7e97353c0514ca8b0a91b8fe91079fd839d678a6366c3b4f5b16da011bd59ad11507e371002777ffb184fd04833e36
SSDEEP

6144:bx0hyohN0XRCznwhh4MRf6kiJtRHdodiBO/CW5tDGGIXrF34WGmaRvpaik5dWJPY:aZ0hOnahrCrtxKdiBiCut1IXGWsp+u

Score

10^/10

limerat discovery persistence rat

Malware Config

Extracted

Family

limerat

Wallets

359Z6KxMenwvgkA7vpGeBtinJPTj5raZz8

Attributes

aes_key
arglobal
antivm
false
c2_url
https://pastebin.com/raw/CV5RHE9G
delay
3
download_payload
false
install
false
install_name
Wservices.exe
main_folder
Temp
pin_spread
false
sub_folder
\
usb_spread
false

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/CV5RHE9G
download_payload
false
install
false
pin_spread
false
usb_spread
false

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vbc = "C:\\Users\\Admin\\vbc.exe"	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

24 pastebin.com
25 pastebin.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

description pid process target process

PID 224 set thread context of 2072 224 cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe RegAsm.exe

flow	ioc
24	pastebin.com
25	pastebin.com

description	pid	process	target process
PID 224 set thread context of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

RegAsm.execc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe
Token: SeDebugPrivilege	2072	RegAsm.exe
Token: SeDebugPrivilege	2072	RegAsm.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe

description	pid	process	target process
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe
PID 224 wrote to memory of 2072	224	cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cc831ad19cbc20cb70449e19ff022b21_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2072

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

memory/224-26-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-3-0x0000000002840000-0x0000000002866000-memory.dmp

Filesize
152KB

Download
memory/224-2-0x0000000002650000-0x0000000002682000-memory.dmp

Filesize
200KB

Download
memory/224-28-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-8-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-10-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-58-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-57-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-52-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-51-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-30-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-46-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

Filesize
4KB

Download
memory/224-44-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-42-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-40-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-39-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-36-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-34-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-32-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-48-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-1-0x0000000000220000-0x00000000002B8000-memory.dmp

Filesize
608KB

Download
memory/224-59-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/224-24-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-22-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-18-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-16-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-14-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-13-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-54-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-20-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-6-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-5-0x0000000002840000-0x000000000285F000-memory.dmp

Filesize
124KB

Download
memory/224-60-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/224-61-0x0000000004CA0000-0x0000000004D3C000-memory.dmp

Filesize
624KB

Download
memory/224-64-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2072-65-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2072-62-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2072-66-0x0000000004DE0000-0x0000000004E46000-memory.dmp

Filesize
408KB

Download
memory/2072-67-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2072-68-0x0000000005AD0000-0x0000000006074000-memory.dmp

Filesize
5.6MB

Download
memory/2072-69-0x0000000006120000-0x00000000061B2000-memory.dmp

Filesize
584KB

Download
memory/2072-70-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/2072-71-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download