limerat | 2db5ed9ab6a2d81ca49933178f01d0e27455df3a113ba61e48dee0622a82a2c3

General

Target

ab52200ad0e49b4376f6e816e4cf84a1.exe
Size

1.1MB
MD5

ab52200ad0e49b4376f6e816e4cf84a1
SHA1

f1b157488357529c76d9e1ff4c9a5352ad1d0028
SHA256

2db5ed9ab6a2d81ca49933178f01d0e27455df3a113ba61e48dee0622a82a2c3
SHA512

81fd33be234c88e898fbd615c21434d0c4ef99238dab07aaa82cc5b5d39e25ac02da27ae724f8fa302139b997a69ef14683b07a20f8ed4a80ff273c60735c83e
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25t:/h+ZkldoPK8Ya971XjFtAt

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:

ab52200ad0e49b4376f6e816e4cf84a1.exesdchange.exesdchange.exesdchange.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	ab52200ad0e49b4376f6e816e4cf84a1.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 3 IoCs

Processes:

sdchange.exesdchange.exesdchange.exe

pid process

460 sdchange.exe
2148 sdchange.exe
208 sdchange.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

32 pastebin.com
33 pastebin.com

pid	process
460	sdchange.exe
2148	sdchange.exe
208	sdchange.exe

flow	ioc
32	pastebin.com
33	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

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 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:

ab52200ad0e49b4376f6e816e4cf84a1.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 4780 set thread context of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 460 set thread context of 828	460	sdchange.exe	RegAsm.exe
PID 2148 set thread context of 2892	2148	sdchange.exe	RegAsm.exe
PID 208 set thread context of 4964	208	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

3512 schtasks.exe
4676 schtasks.exe
4692 schtasks.exe
1120 schtasks.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 3980 RegAsm.exe
Token: SeDebugPrivilege 3980 RegAsm.exe

pid	process
3512	schtasks.exe
4676	schtasks.exe
4692	schtasks.exe
1120	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	3980	RegAsm.exe
Token: SeDebugPrivilege	3980	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

ab52200ad0e49b4376f6e816e4cf84a1.exesdchange.exesdchange.exesdchange.exe

description	pid	process	target process
PID 4780 wrote to memory of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 4780 wrote to memory of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 4780 wrote to memory of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 4780 wrote to memory of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 4780 wrote to memory of 3980	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	RegAsm.exe
PID 4780 wrote to memory of 3512	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	schtasks.exe
PID 4780 wrote to memory of 3512	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	schtasks.exe
PID 4780 wrote to memory of 3512	4780	ab52200ad0e49b4376f6e816e4cf84a1.exe	schtasks.exe
PID 460 wrote to memory of 828	460	sdchange.exe	RegAsm.exe
PID 460 wrote to memory of 828	460	sdchange.exe	RegAsm.exe
PID 460 wrote to memory of 828	460	sdchange.exe	RegAsm.exe
PID 460 wrote to memory of 828	460	sdchange.exe	RegAsm.exe
PID 460 wrote to memory of 828	460	sdchange.exe	RegAsm.exe
PID 460 wrote to memory of 4676	460	sdchange.exe	schtasks.exe
PID 460 wrote to memory of 4676	460	sdchange.exe	schtasks.exe
PID 460 wrote to memory of 4676	460	sdchange.exe	schtasks.exe
PID 2148 wrote to memory of 2892	2148	sdchange.exe	RegAsm.exe
PID 2148 wrote to memory of 2892	2148	sdchange.exe	RegAsm.exe
PID 2148 wrote to memory of 2892	2148	sdchange.exe	RegAsm.exe
PID 2148 wrote to memory of 2892	2148	sdchange.exe	RegAsm.exe
PID 2148 wrote to memory of 2892	2148	sdchange.exe	RegAsm.exe
PID 2148 wrote to memory of 4692	2148	sdchange.exe	schtasks.exe
PID 2148 wrote to memory of 4692	2148	sdchange.exe	schtasks.exe
PID 2148 wrote to memory of 4692	2148	sdchange.exe	schtasks.exe
PID 208 wrote to memory of 4964	208	sdchange.exe	RegAsm.exe
PID 208 wrote to memory of 4964	208	sdchange.exe	RegAsm.exe
PID 208 wrote to memory of 4964	208	sdchange.exe	RegAsm.exe
PID 208 wrote to memory of 4964	208	sdchange.exe	RegAsm.exe
PID 208 wrote to memory of 4964	208	sdchange.exe	RegAsm.exe
PID 208 wrote to memory of 1120	208	sdchange.exe	schtasks.exe
PID 208 wrote to memory of 1120	208	sdchange.exe	schtasks.exe
PID 208 wrote to memory of 1120	208	sdchange.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\ab52200ad0e49b4376f6e816e4cf84a1.exe
"C:\Users\Admin\AppData\Local\Temp\ab52200ad0e49b4376f6e816e4cf84a1.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4780
- 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:3980
- 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:3512

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:460
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:828
- 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:4676

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:2148
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:2892
- 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:4692

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:208
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4964
- 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:1120

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
fd9ac97cf894b002277dd42f2f07404f

SHA1
8a0b2e07e5130e24f6340e835baaed81f5c1b2c9

SHA256
8d5c8f82aca0aba5a18e4345524aca30248e6e5035fd6572ffb5e0bb8a8e0a58

SHA512
5f04f05f37fb0fdf42100ea69ec8995473e41f9fc2293c810f9c2d9cb0c9afddd3906abdde9107ceb79ab5c786aeb8b99f190af794036b28e0021ebac6612456

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

Filesize
1.1MB

MD5
8fa602214729372d0b5555e0c03317ba

SHA1
9ebfa19b9c718f1b83b3315094e26c2f735a9d6a

SHA256
92dba4c47344ae2e59c6a4294dfb51a1840c5d3a0c8f00d421502b9101a2aa87

SHA512
eb192e6af98f3a207110c07a6849c2154f8652b81ec43b83b556d8d759e7aa4b96f336d7f87abd85af0b1b726dcfcc2c319cdc05b43af62b1a28fea0e66297ce

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

Filesize
1.0MB

MD5
8b2eedec7f22ffe34cf7edba92d709e8

SHA1
da28290222ed3b659c8486f1604b37cbf5010e24

SHA256
8285d71a5d5d005ceb802f15e316f7807330f146b9f727ad973234f2e56d762b

SHA512
947a20bf5eb42f9ebf9d3f531e78f9de965cc07abba828f1954dd4ffbf47c02182d15f720543199dcb07e50874b202b12c2585794f5ffb70ad32f538f008fcf1

Download Submit
memory/828-22-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/828-20-0x0000000002770000-0x0000000002780000-memory.dmp

Filesize
64KB

Download
memory/828-19-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/828-18-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/828-14-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2892-31-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/2892-24-0x00000000001B0000-0x00000000001BC000-memory.dmp

Filesize
48KB

Download
memory/2892-32-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/2892-29-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/2892-30-0x0000000000650000-0x0000000000660000-memory.dmp

Filesize
64KB

Download
memory/3980-1-0x0000000000560000-0x000000000056C000-memory.dmp

Filesize
48KB

Download
memory/3980-5-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/3980-11-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/3980-6-0x0000000000750000-0x0000000000760000-memory.dmp

Filesize
64KB

Download
memory/3980-7-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/3980-10-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/4780-0-0x00000000034A0000-0x00000000034A1000-memory.dmp

Filesize
4KB

Download
memory/4964-38-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/4964-39-0x0000000001210000-0x0000000001220000-memory.dmp

Filesize
64KB

Download
memory/4964-40-0x00000000747A0000-0x0000000074D51000-memory.dmp

Filesize
5.7MB

Download
memory/4964-41-0x00000000747A0000-0x0000000074D51000-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