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 2 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-1-5-21-3803511929-1339359695-2191195476-1000\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	53897003f88e0a4cd2883bfbb5a2ac85.exe

Executes dropped EXE 2 IoCs

pid	Process
512	sdchange.exe
2480	sdchange.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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 3 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x00020000000228cb-14.dat	autoit_exe
behavioral2/files/0x00020000000228cb-13.dat	autoit_exe
behavioral2/files/0x00020000000228cb-24.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 396 set thread context of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 512 set thread context of 532	512	sdchange.exe	106
PID 2480 set thread context of 3704	2480	sdchange.exe	118

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
4956	schtasks.exe
4424	schtasks.exe
4084	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	RegAsm.exe
Token: SeDebugPrivilege	4392	RegAsm.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 396 wrote to memory of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 396 wrote to memory of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 396 wrote to memory of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 396 wrote to memory of 4392	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	91
PID 396 wrote to memory of 4084	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	92
PID 396 wrote to memory of 4084	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	92
PID 396 wrote to memory of 4084	396	53897003f88e0a4cd2883bfbb5a2ac85.exe	92
PID 512 wrote to memory of 532	512	sdchange.exe	106
PID 512 wrote to memory of 532	512	sdchange.exe	106
PID 512 wrote to memory of 532	512	sdchange.exe	106
PID 512 wrote to memory of 532	512	sdchange.exe	106
PID 512 wrote to memory of 532	512	sdchange.exe	106
PID 512 wrote to memory of 4956	512	sdchange.exe	107
PID 512 wrote to memory of 4956	512	sdchange.exe	107
PID 512 wrote to memory of 4956	512	sdchange.exe	107
PID 2480 wrote to memory of 3704	2480	sdchange.exe	118
PID 2480 wrote to memory of 3704	2480	sdchange.exe	118
PID 2480 wrote to memory of 3704	2480	sdchange.exe	118
PID 2480 wrote to memory of 3704	2480	sdchange.exe	118
PID 2480 wrote to memory of 3704	2480	sdchange.exe	118

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:396
- 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:4392
- 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:4084

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:512
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:532
- 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:4956

C:\Users\Admin\secinit\sdchange.exe
C:\Users\Admin\secinit\sdchange.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3704
- 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:4424

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
893KB

MD5
edebde8b51a41b3c797268ec0ea4492d

SHA1
021f69b76237aba31a98da515b6ebe773ceb4585

SHA256
26a9562cbb2e042e31c4ca8b6e5cd85c87a309667103f1b7ff020a1c3126e9fc

SHA512
41c83ef4f3b484afc353bd6d3568f8bba134180676dd402b3f967e47b9973537fe4f9b20c95806639c345d28494d24a7345d7537e15b8a75457c7b46c736628a

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

Filesize
887KB

MD5
a7616ea1495920f655e3a1b25c0cd3ff

SHA1
065f1d857516ab67b834c5099b28dcebde853a3f

SHA256
e889f351652e1dc8dacc5bd107e987d079494a57fde198a5a8c1bf5aa293fb88

SHA512
2bcb489b3941184ab1460fe346ca744ed40ebe01eb1f9bfba40d8eec29d9c73bb32f6554738a26cb975dc9168e8dfb4a18083ca2c423969a1b7c83b3198c1ee0

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

Filesize
1.1MB

MD5
6d696f1850aec5014f02ffde041b18c9

SHA1
f01c2f588df16c99e2a7be53e184cbb2c943c588

SHA256
367f74e6d2f2d8e65d9b111ce48ac85336efae276bff490316d024315cb23075

SHA512
05ac1923f3c25d094f3f51b02bdcbb04fe663d1425178474771854b67358c1c2287fbcf8328480d27c5b2e1da03291c9ea97cfe67d404337bed26c6ee0d6e2f6

Download Submit
memory/396-2-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/532-23-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/532-19-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/532-21-0x0000000002CF0000-0x0000000002D00000-memory.dmp

Filesize
64KB

Download
memory/532-20-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-25-0x0000000000600000-0x000000000060C000-memory.dmp

Filesize
48KB

Download
memory/3704-30-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-31-0x00000000023D0000-0x00000000023E0000-memory.dmp

Filesize
64KB

Download
memory/3704-32-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/3704-33-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/4392-12-0x0000000002E00000-0x0000000002E10000-memory.dmp

Filesize
64KB

Download
memory/4392-11-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/4392-10-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/4392-7-0x0000000002E00000-0x0000000002E10000-memory.dmp

Filesize
64KB

Download
memory/4392-6-0x0000000074200000-0x00000000747B1000-memory.dmp

Filesize
5.7MB

Download
memory/4392-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4392-5-0x0000000074200000-0x00000000747B1000-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