limerat | 4e86f84ad8430cadbfcd160b3efc18a81f24b027d3c3a35e96798bb8df06eabd

General

Target

53897003f88e0a4cd2883bfbb5a2ac85.exe
Size

1.1MB
MD5

53897003f88e0a4cd2883bfbb5a2ac85
SHA1

419eb269ed10622722997da21ec7cef11c059212
SHA256

4e86f84ad8430cadbfcd160b3efc18a81f24b027d3c3a35e96798bb8df06eabd
SHA512

b4c15b49457971c0b810f7b06df6764371e70a100e339094cc720788674bf73a9af870b2f42556e76ddc9030b33644558bdee980036d4e2a8da49b08a53d0f71
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM257:/h+ZkldoPK8Ya971XjFtA7

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 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

53897003f88e0a4cd2883bfbb5a2ac85.exesdchange.exesdchange.exesdchange.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	53897003f88e0a4cd2883bfbb5a2ac85.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 3 IoCs

Processes:

sdchange.exesdchange.exesdchange.exe

pid process

4192 sdchange.exe
4560 sdchange.exe
2948 sdchange.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

pid	process
4192	sdchange.exe
4560	sdchange.exe
2948	sdchange.exe

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

Processes:

RegAsm.exe

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

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
C:\Users\Admin\secinit\sdchange.exe	autoit_exe
C:\Users\Admin\secinit\sdchange.exe	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

53897003f88e0a4cd2883bfbb5a2ac85.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 4512 set thread context of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4192 set thread context of 5080	4192	sdchange.exe	RegAsm.exe
PID 4560 set thread context of 408	4560	sdchange.exe	RegAsm.exe
PID 2948 set thread context of 4576	2948	sdchange.exe	RegAsm.exe

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

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

4420 schtasks.exe
3136 schtasks.exe
968 schtasks.exe
4372 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2256 RegAsm.exe
Token: SeDebugPrivilege 2256 RegAsm.exe

pid	process
4420	schtasks.exe
3136	schtasks.exe
968	schtasks.exe
4372	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	2256	RegAsm.exe
Token: SeDebugPrivilege	2256	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

53897003f88e0a4cd2883bfbb5a2ac85.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 4512 wrote to memory of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4512 wrote to memory of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4512 wrote to memory of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4512 wrote to memory of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4512 wrote to memory of 2256	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 4512 wrote to memory of 968	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 4512 wrote to memory of 968	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 4512 wrote to memory of 968	4512	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 4192 wrote to memory of 5080	4192	sdchange.exe	RegAsm.exe
PID 4192 wrote to memory of 5080	4192	sdchange.exe	RegAsm.exe
PID 4192 wrote to memory of 5080	4192	sdchange.exe	RegAsm.exe
PID 4192 wrote to memory of 5080	4192	sdchange.exe	RegAsm.exe
PID 4192 wrote to memory of 5080	4192	sdchange.exe	RegAsm.exe
PID 4192 wrote to memory of 4372	4192	sdchange.exe	schtasks.exe
PID 4192 wrote to memory of 4372	4192	sdchange.exe	schtasks.exe
PID 4192 wrote to memory of 4372	4192	sdchange.exe	schtasks.exe
PID 4560 wrote to memory of 408	4560	sdchange.exe	RegAsm.exe
PID 4560 wrote to memory of 408	4560	sdchange.exe	RegAsm.exe
PID 4560 wrote to memory of 408	4560	sdchange.exe	RegAsm.exe
PID 4560 wrote to memory of 408	4560	sdchange.exe	RegAsm.exe
PID 4560 wrote to memory of 408	4560	sdchange.exe	RegAsm.exe
PID 4560 wrote to memory of 4420	4560	sdchange.exe	schtasks.exe
PID 4560 wrote to memory of 4420	4560	sdchange.exe	schtasks.exe
PID 4560 wrote to memory of 4420	4560	sdchange.exe	schtasks.exe
PID 2948 wrote to memory of 4576	2948	sdchange.exe	RegAsm.exe
PID 2948 wrote to memory of 4576	2948	sdchange.exe	RegAsm.exe
PID 2948 wrote to memory of 4576	2948	sdchange.exe	RegAsm.exe
PID 2948 wrote to memory of 4576	2948	sdchange.exe	RegAsm.exe
PID 2948 wrote to memory of 4576	2948	sdchange.exe	RegAsm.exe
PID 2948 wrote to memory of 3136	2948	sdchange.exe	schtasks.exe
PID 2948 wrote to memory of 3136	2948	sdchange.exe	schtasks.exe
PID 2948 wrote to memory of 3136	2948	sdchange.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\53897003f88e0a4cd2883bfbb5a2ac85.exe
"C:\Users\Admin\AppData\Local\Temp\53897003f88e0a4cd2883bfbb5a2ac85.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4512
- 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:2256
- 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:968

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:4192
- 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:4372
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:5080

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:4560
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:408
- 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:4420

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:2948
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4576
- 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:3136

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

Replay Monitor

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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
8d68446f60620a7ecdcebf21867444d8

SHA1
d168150a13b85e86dc26778d97f60b8007df6c98

SHA256
a0646d518702f9267adce6b8da225c57c9fe3f2b4ebe403173418d35f67f7848

SHA512
0085c4ae0d75a93831643f6426147dd767f48a4d32fb56ae1fa0bd691ade38e65ab91f4b314ad97273199df02474920a96b6cc0ebd52a2aadc92b59b061b0a7c

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

Filesize
893KB

MD5
edebde8b51a41b3c797268ec0ea4492d

SHA1
021f69b76237aba31a98da515b6ebe773ceb4585

SHA256
26a9562cbb2e042e31c4ca8b6e5cd85c87a309667103f1b7ff020a1c3126e9fc

SHA512
41c83ef4f3b484afc353bd6d3568f8bba134180676dd402b3f967e47b9973537fe4f9b20c95806639c345d28494d24a7345d7537e15b8a75457c7b46c736628a

Download Submit
memory/408-31-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/408-32-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/408-30-0x0000000002460000-0x0000000002470000-memory.dmp

Filesize
64KB

Download
memory/408-29-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/408-24-0x0000000000710000-0x000000000071C000-memory.dmp

Filesize
48KB

Download
memory/2256-7-0x0000000003000000-0x0000000003010000-memory.dmp

Filesize
64KB

Download
memory/2256-20-0x0000000003000000-0x0000000003010000-memory.dmp

Filesize
64KB

Download
memory/2256-6-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-17-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-10-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-5-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/2256-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4512-0-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/4576-38-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/4576-39-0x0000000002B10000-0x0000000002B20000-memory.dmp

Filesize
64KB

Download
memory/4576-40-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/4576-41-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/5080-22-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/5080-13-0x0000000000170000-0x000000000017C000-memory.dmp

Filesize
48KB

Download
memory/5080-19-0x00000000743F0000-0x00000000749A1000-memory.dmp

Filesize
5.7MB

Download
memory/5080-18-0x00000000022A0000-0x00000000022B0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads