limerat | 57a08a9176c41262cf25a6294d7a1aebf712835eb5d64876846e1aae46d19b0d

Analysis

max time kernel
144s
max time network
144s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
16/02/2024, 09:24

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General

Target

a00578f7146ca07d408809a45a1ef9eb.exe
Size

1.1MB
MD5

a00578f7146ca07d408809a45a1ef9eb
SHA1

3b59cebd2112fd08fe7e128d750eb3876763a3ef
SHA256

57a08a9176c41262cf25a6294d7a1aebf712835eb5d64876846e1aae46d19b0d
SHA512

85764827c35f26a69194fb108e21c28b7a4c69346d74d344b79d6c14061828f390c3e64d94a521fcaa6ccf776723679782807efa211f325f2c1bf20807379445
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM254:/h+ZkldoPK8Ya971XjFtA4

Score

10^/10

limerat rat

Malware Config

Extracted

Family

limerat

Wallets

1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes

aes_key
nulled
antivm
true
c2_url
https://pastebin.com/raw/cXuQ0V20
delay
3
download_payload
false
install
false
install_name
Winservices.exe
main_folder
AppData
pin_spread
false
sub_folder
\
usb_spread
true

Extracted

Family

limerat

Attributes

antivm
false
c2_url
https://pastebin.com/raw/cXuQ0V20
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

Executes dropped EXE 2 IoCs

pid	Process
2992	sdchange.exe
1568	sdchange.exe

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

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	RegAsm.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000c0000000155f7-50.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2220 set thread context of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2992 set thread context of 2860	2992	sdchange.exe	34
PID 1568 set thread context of 984	1568	sdchange.exe	40

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2564	schtasks.exe
2912	schtasks.exe
3024	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	RegAsm.exe
Token: SeDebugPrivilege	1704	RegAsm.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 1704	2220	a00578f7146ca07d408809a45a1ef9eb.exe	28
PID 2220 wrote to memory of 2564	2220	a00578f7146ca07d408809a45a1ef9eb.exe	29
PID 2220 wrote to memory of 2564	2220	a00578f7146ca07d408809a45a1ef9eb.exe	29
PID 2220 wrote to memory of 2564	2220	a00578f7146ca07d408809a45a1ef9eb.exe	29
PID 2220 wrote to memory of 2564	2220	a00578f7146ca07d408809a45a1ef9eb.exe	29
PID 1576 wrote to memory of 2992	1576	taskeng.exe	33
PID 1576 wrote to memory of 2992	1576	taskeng.exe	33
PID 1576 wrote to memory of 2992	1576	taskeng.exe	33
PID 1576 wrote to memory of 2992	1576	taskeng.exe	33
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2860	2992	sdchange.exe	34
PID 2992 wrote to memory of 2912	2992	sdchange.exe	35
PID 2992 wrote to memory of 2912	2992	sdchange.exe	35
PID 2992 wrote to memory of 2912	2992	sdchange.exe	35
PID 2992 wrote to memory of 2912	2992	sdchange.exe	35
PID 1576 wrote to memory of 1568	1576	taskeng.exe	39
PID 1576 wrote to memory of 1568	1576	taskeng.exe	39
PID 1576 wrote to memory of 1568	1576	taskeng.exe	39
PID 1576 wrote to memory of 1568	1576	taskeng.exe	39
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 984	1568	sdchange.exe	40
PID 1568 wrote to memory of 3024	1568	sdchange.exe	41
PID 1568 wrote to memory of 3024	1568	sdchange.exe	41
PID 1568 wrote to memory of 3024	1568	sdchange.exe	41
PID 1568 wrote to memory of 3024	1568	sdchange.exe	41

C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe
"C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Maps connected drives based on registry
  - Suspicious use of AdjustPrivilegeToken
  PID:1704
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
  2⤵
  - Creates scheduled task(s)
  PID:2564

C:\Windows\system32\taskeng.exe
taskeng.exe {D795BE3A-0145-43E2-B89C-2F1F58407521} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\secinit\sdchange.exe
  C:\Users\Admin\secinit\sdchange.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2992
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:2860
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
    3⤵
    - Creates scheduled task(s)
    PID:2912
- C:\Users\Admin\secinit\sdchange.exe
  C:\Users\Admin\secinit\sdchange.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1568
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:984
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn SettingSyncHost /tr "C:\Users\Admin\secinit\sdchange.exe" /sc minute /mo 1 /F
    3⤵
    - Creates scheduled task(s)
    PID:3024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar373C.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
C:\Users\Admin\secinit\sdchange.exe

Filesize
1.1MB

MD5
bcdc3e907838c94e011e7f3dd5b132d9

SHA1
d68c33539f55708672e3694ac570cca11f73c367

SHA256
8bc339909b150a7eb98bafa94be78f3702841deaa8fc3ce61085c63ae65d0150

SHA512
603b2348775955993004ddf8bdea7c5c5f279fa1ffae94ff747313b4f87793e05196ddc2dbbd4d2a0a363dd1201f424fc15afb9770b00975f392d4573ebb18e5

Download Submit
memory/984-73-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download
memory/984-72-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download
memory/1568-71-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1704-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1704-12-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download
memory/1704-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1704-49-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download
memory/1704-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1704-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1704-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2220-7-0x0000000000110000-0x0000000000111000-memory.dmp

Filesize
4KB

Download
memory/2860-60-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download
memory/2860-61-0x0000000073AE0000-0x000000007408B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads