limerat | 57a08a9176c41262cf25a6294d7a1aebf712835eb5d64876846e1aae46d19b0d

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

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	a00578f7146ca07d408809a45a1ef9eb.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 2 IoCs

pid	Process
1120	sdchange.exe
1956	sdchange.exe

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

Web Service

T1102

flow	ioc
17	pastebin.com
18	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
behavioral2/files/0x000700000002320d-12.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3980 set thread context of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 1120 set thread context of 1264	1120	sdchange.exe	97
PID 1956 set thread context of 3132	1956	sdchange.exe	101

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
3564	schtasks.exe
3036	schtasks.exe
2428	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4012	RegAsm.exe
Token: SeDebugPrivilege	4012	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 3980 wrote to memory of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 3980 wrote to memory of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 3980 wrote to memory of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 3980 wrote to memory of 4012	3980	a00578f7146ca07d408809a45a1ef9eb.exe	85
PID 3980 wrote to memory of 3564	3980	a00578f7146ca07d408809a45a1ef9eb.exe	86
PID 3980 wrote to memory of 3564	3980	a00578f7146ca07d408809a45a1ef9eb.exe	86
PID 3980 wrote to memory of 3564	3980	a00578f7146ca07d408809a45a1ef9eb.exe	86
PID 1120 wrote to memory of 1264	1120	sdchange.exe	97
PID 1120 wrote to memory of 1264	1120	sdchange.exe	97
PID 1120 wrote to memory of 1264	1120	sdchange.exe	97
PID 1120 wrote to memory of 1264	1120	sdchange.exe	97
PID 1120 wrote to memory of 1264	1120	sdchange.exe	97
PID 1120 wrote to memory of 3036	1120	sdchange.exe	98
PID 1120 wrote to memory of 3036	1120	sdchange.exe	98
PID 1120 wrote to memory of 3036	1120	sdchange.exe	98
PID 1956 wrote to memory of 3132	1956	sdchange.exe	101
PID 1956 wrote to memory of 3132	1956	sdchange.exe	101
PID 1956 wrote to memory of 3132	1956	sdchange.exe	101
PID 1956 wrote to memory of 3132	1956	sdchange.exe	101
PID 1956 wrote to memory of 3132	1956	sdchange.exe	101
PID 1956 wrote to memory of 2428	1956	sdchange.exe	102
PID 1956 wrote to memory of 2428	1956	sdchange.exe	102
PID 1956 wrote to memory of 2428	1956	sdchange.exe	102

C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe
"C:\Users\Admin\AppData\Local\Temp\a00578f7146ca07d408809a45a1ef9eb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3980
- 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:4012
- 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:3564

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:1264
- 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:3036

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3132
- 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:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log

Filesize
316B

MD5
9f893d94b017a0684012d50319c9ffbe

SHA1
140cc2cb6b2520ba4f9a1f666a5f679853472793

SHA256
8a7cb420c82edf1bb2c7bdfef52091e5169fabaecc370e120985e91406fcbbec

SHA512
4b7df94d3622b82d852b0f532d7fd810ca2113d7b737ec417023d5b2142e9e79414a06d22647d73f8bc114f8e871a3a741a479b0aba48892f9078975ec78acba

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

Filesize
1.1MB

MD5
d27a8f3febe578b718bd96e18d75be0f

SHA1
55f7558dc5cc89870b46ebfd4197e42181e368ba

SHA256
eefad494ef24daf0ed7184c64e5537ae2c2f352daab2f87d69798ff88e8f60cd

SHA512
8fb12b565006560ca03c60094d828369a46311a5908c1c2ea7749cf7a287086f80f09af87e5fa598a9445825412fba6c483ff4f0e2ff989ff333200251dca262

Download Submit
memory/1264-18-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/1264-22-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/1264-19-0x0000000002D60000-0x0000000002D70000-memory.dmp

Filesize
64KB

Download
memory/1264-20-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/3132-32-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/3132-31-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/3132-30-0x0000000000EF0000-0x0000000000F00000-memory.dmp

Filesize
64KB

Download
memory/3132-29-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/3980-0-0x0000000002550000-0x0000000002551000-memory.dmp

Filesize
4KB

Download
memory/4012-11-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

Filesize
64KB

Download
memory/4012-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4012-5-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/4012-6-0x0000000000AD0000-0x0000000000AE0000-memory.dmp

Filesize
64KB

Download
memory/4012-10-0x0000000074150000-0x0000000074701000-memory.dmp

Filesize
5.7MB

Download
memory/4012-7-0x0000000074150000-0x0000000074701000-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