limerat | 700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11-03-2023 08:18

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General

Target

700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe
Size

335KB
MD5

9268b0a4743de79dc5a13bbc110d7625
SHA1

3813eae8baea870a0b9865a8bd73100e6ec57b70
SHA256

700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871
SHA512

00631eb1b86c38850efc334d94bb78d3dd1259284386e9b28c04f2362db9554fece5e55492f01f6aa7fae1aa1c80c2974aba0b5fe93797dccdff2291b8363634
SSDEEP

6144:m+b24Srv5ztq9fq2OlioP8fZCbWpg505a:nbT8tg7OlioPWzpb

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Attributes

aes_key
1234
antivm
false
c2_url
https://pastebin.com/raw/0VLKT4kX
delay
3
download_payload
false
install
false
install_name
Windows Compatibility Assistant.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
false

Signatures

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

Executes dropped EXE 1 IoCs

Processes:

UAC Control.exe

pid	Process
1560	UAC Control.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 2 IoCs

Processes:

700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exeUAC Control.exe

description	pid	Process	procid_target
PID 324 set thread context of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 1560 set thread context of 1628	1560	UAC Control.exe	37

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

Processes:

schtasks.exeschtasks.exe

pid	Process
860	schtasks.exe
620	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exeRegAsm.exeUAC Control.exe

description	pid	Process
Token: SeDebugPrivilege	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe
Token: SeDebugPrivilege	2020	RegAsm.exe
Token: SeDebugPrivilege	2020	RegAsm.exe
Token: SeDebugPrivilege	1560	UAC Control.exe

Suspicious use of WriteProcessMemory 58 IoCs

Processes:

700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.execmd.exetaskeng.exeUAC Control.execmd.exe

description	pid	Process	procid_target
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 2020	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	26
PID 324 wrote to memory of 320	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	28
PID 324 wrote to memory of 320	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	28
PID 324 wrote to memory of 320	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	28
PID 324 wrote to memory of 320	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	28
PID 324 wrote to memory of 664	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	29
PID 324 wrote to memory of 664	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	29
PID 324 wrote to memory of 664	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	29
PID 324 wrote to memory of 664	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	29
PID 324 wrote to memory of 564	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	31
PID 324 wrote to memory of 564	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	31
PID 324 wrote to memory of 564	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	31
PID 324 wrote to memory of 564	324	700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe	31
PID 664 wrote to memory of 860	664	cmd.exe	34
PID 664 wrote to memory of 860	664	cmd.exe	34
PID 664 wrote to memory of 860	664	cmd.exe	34
PID 664 wrote to memory of 860	664	cmd.exe	34
PID 1156 wrote to memory of 1560	1156	taskeng.exe	36
PID 1156 wrote to memory of 1560	1156	taskeng.exe	36
PID 1156 wrote to memory of 1560	1156	taskeng.exe	36
PID 1156 wrote to memory of 1560	1156	taskeng.exe	36
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 1628	1560	UAC Control.exe	37
PID 1560 wrote to memory of 2000	1560	UAC Control.exe	38
PID 1560 wrote to memory of 2000	1560	UAC Control.exe	38
PID 1560 wrote to memory of 2000	1560	UAC Control.exe	38
PID 1560 wrote to memory of 2000	1560	UAC Control.exe	38
PID 1560 wrote to memory of 1600	1560	UAC Control.exe	39
PID 1560 wrote to memory of 1600	1560	UAC Control.exe	39
PID 1560 wrote to memory of 1600	1560	UAC Control.exe	39
PID 1560 wrote to memory of 1600	1560	UAC Control.exe	39
PID 1560 wrote to memory of 1996	1560	UAC Control.exe	42
PID 1560 wrote to memory of 1996	1560	UAC Control.exe	42
PID 1560 wrote to memory of 1996	1560	UAC Control.exe	42
PID 1560 wrote to memory of 1996	1560	UAC Control.exe	42
PID 1600 wrote to memory of 620	1600	cmd.exe	44
PID 1600 wrote to memory of 620	1600	cmd.exe	44
PID 1600 wrote to memory of 620	1600	cmd.exe	44
PID 1600 wrote to memory of 620	1600	cmd.exe	44

C:\Users\Admin\AppData\Local\Temp\700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe
"C:\Users\Admin\AppData\Local\Temp\700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:324
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2020
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\UAC Control"
  2⤵
  PID:320
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:664
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:860
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871.exe" "C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe"
  2⤵
  PID:564

C:\Windows\system32\taskeng.exe
taskeng.exe {4C39C41A-33FE-4A1A-9F01-7DE4409DD995} S-1-5-21-1563773381-2037468142-1146002597-1000:YBHADZIG\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1156
- C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe
  "C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:1628
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\UAC Control"
    3⤵
    PID:2000
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe'" /f
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1600
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nanias" /tr "'C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe'" /f
      4⤵
      Creates scheduled task(s)
      PID:620
- - C:\Windows\SysWOW64\cmd.exe
    "cmd" /c copy "C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe" "C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe"
    3⤵
    PID:1996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe

Filesize
335KB

MD5
9268b0a4743de79dc5a13bbc110d7625

SHA1
3813eae8baea870a0b9865a8bd73100e6ec57b70

SHA256
700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871

SHA512
00631eb1b86c38850efc334d94bb78d3dd1259284386e9b28c04f2362db9554fece5e55492f01f6aa7fae1aa1c80c2974aba0b5fe93797dccdff2291b8363634

Download Submit
C:\Users\Admin\AppData\Roaming\UAC Control\UAC Control.exe

Filesize
335KB

MD5
9268b0a4743de79dc5a13bbc110d7625

SHA1
3813eae8baea870a0b9865a8bd73100e6ec57b70

SHA256
700043106c930b06fa9ea4a403ca0929bacb82e1c7bd6abaa522b3c207270871

SHA512
00631eb1b86c38850efc334d94bb78d3dd1259284386e9b28c04f2362db9554fece5e55492f01f6aa7fae1aa1c80c2974aba0b5fe93797dccdff2291b8363634

Download Submit
memory/324-68-0x0000000000360000-0x00000000003A0000-memory.dmp

Filesize
256KB

Download
memory/324-55-0x0000000000360000-0x00000000003A0000-memory.dmp

Filesize
256KB

Download
memory/324-54-0x0000000001110000-0x000000000116A000-memory.dmp

Filesize
360KB

Download
memory/1560-72-0x00000000048B0000-0x00000000048F0000-memory.dmp

Filesize
256KB

Download
memory/1560-71-0x0000000000DC0000-0x0000000000E1A000-memory.dmp

Filesize
360KB

Download
memory/1628-84-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1628-82-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/1628-79-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2020-58-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-67-0x0000000004E70000-0x0000000004EB0000-memory.dmp

Filesize
256KB

Download
memory/2020-64-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-62-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-60-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-59-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2020-57-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-56-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2020-85-0x0000000004E70000-0x0000000004EB0000-memory.dmp

Filesize
256KB

Download