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
Executes dropped EXE 2 IoCs

Processes:

sdchange.exesdchange.exe

pid process

1912 sdchange.exe
1340 sdchange.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

pid	process
1912	sdchange.exe
1340	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 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.

Processes:

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

53897003f88e0a4cd2883bfbb5a2ac85.exesdchange.exesdchange.exe

description	pid	process	target process
PID 3028 set thread context of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 1912 set thread context of 308	1912	sdchange.exe	RegAsm.exe
PID 1340 set thread context of 1796	1340	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 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

1496 schtasks.exe
1988 schtasks.exe
3024 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1752 RegAsm.exe
Token: SeDebugPrivilege 1752 RegAsm.exe

pid	process
1496	schtasks.exe
1988	schtasks.exe
3024	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	1752	RegAsm.exe
Token: SeDebugPrivilege	1752	RegAsm.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

53897003f88e0a4cd2883bfbb5a2ac85.exetaskeng.exesdchange.exesdchange.exe

description	pid	process	target process
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 1752	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	RegAsm.exe
PID 3028 wrote to memory of 3024	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 3028 wrote to memory of 3024	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 3028 wrote to memory of 3024	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 3028 wrote to memory of 3024	3028	53897003f88e0a4cd2883bfbb5a2ac85.exe	schtasks.exe
PID 2964 wrote to memory of 1912	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1912	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1912	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1912	2964	taskeng.exe	sdchange.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 308	1912	sdchange.exe	RegAsm.exe
PID 1912 wrote to memory of 1496	1912	sdchange.exe	schtasks.exe
PID 1912 wrote to memory of 1496	1912	sdchange.exe	schtasks.exe
PID 1912 wrote to memory of 1496	1912	sdchange.exe	schtasks.exe
PID 1912 wrote to memory of 1496	1912	sdchange.exe	schtasks.exe
PID 2964 wrote to memory of 1340	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1340	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1340	2964	taskeng.exe	sdchange.exe
PID 2964 wrote to memory of 1340	2964	taskeng.exe	sdchange.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1796	1340	sdchange.exe	RegAsm.exe
PID 1340 wrote to memory of 1988	1340	sdchange.exe	schtasks.exe
PID 1340 wrote to memory of 1988	1340	sdchange.exe	schtasks.exe
PID 1340 wrote to memory of 1988	1340	sdchange.exe	schtasks.exe
PID 1340 wrote to memory of 1988	1340	sdchange.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\53897003f88e0a4cd2883bfbb5a2ac85.exe
"C:\Users\Admin\AppData\Local\Temp\53897003f88e0a4cd2883bfbb5a2ac85.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3028
- 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:1752
- 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:3024

C:\Windows\system32\taskeng.exe
taskeng.exe {C28367C8-DE47-46CF-ACCC-E19ABD7E1E5E} S-1-5-21-3601492379-692465709-652514833-1000:CALKHSYM\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2964
- 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:1912
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:308
- - 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:1496
- 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:1340
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    PID:1796
- - 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:1988

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

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab6452.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar6464.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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

Filesize
1.1MB

MD5
c57b712841dab869aac36469b17cfba0

SHA1
68643d105244c87c66008cd183c3ebf4d4ec774b

SHA256
4c05be393dcd72c0fe56572287305517e08023b93569c4102de0a8d99db0cc79

SHA512
b6f822ccc27e3d04a36f5297cbeafba04674df5133b0a6dd2e669856206d409e18a9470f6c1575377a72eb5aba969e4fcf74f4ea1696558a153389e28de412c6

Download Submit
memory/308-58-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/308-57-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/1752-11-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/1752-8-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1752-7-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1752-46-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/1752-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1752-1-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1752-2-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1796-69-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/1796-70-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/3028-0-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads