limerat | 28a6e2fc04546edd1bbcb429f030d76e4c10a2882beab9ed414867946bc48768

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
02/05/2024, 08:51

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General

Target
0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe
Size 1.1MB
Sample240502-ksja1sff39
SHA256 28a6e2fc04546edd1bbcb429f030d76e4c10a2882beab9ed414867946bc48768
MD5 0e0c2f38d64b80e354087d81b3efef43
SHA1 7999d6174b9c8f871366d08ac41f865f18906f62
SHA512 e83b1f0a206d3ea449a0537aace9b796d987c3908c2dcfc6b1a0abd33ebfca373c39cc16f2bf6f4866a29e15a73b331ac513200b9d8438b18800abec3949f98a
SSDEEP 24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25j:/h+ZkldoPK8Ya971XjFtAj
MD5 SHA1 SHA512 SSDEEP

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 3 IoCs

pid	Process
4784	sdchange.exe
4856	sdchange.exe
3380	sdchange.exe

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

Web Service

T1102

flow	ioc
27	pastebin.com
28	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/0x000a000000023b73-10.dat	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1332 set thread context of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 4784 set thread context of 1072	4784	sdchange.exe	101
PID 4856 set thread context of 4228	4856	sdchange.exe	112
PID 3380 set thread context of 3656	3380	sdchange.exe	123

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

pid	Process
4596	schtasks.exe
5100	schtasks.exe
4464	schtasks.exe
4640	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4624	RegAsm.exe
Token: SeDebugPrivilege	4624	RegAsm.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1332 wrote to memory of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 1332 wrote to memory of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 1332 wrote to memory of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 1332 wrote to memory of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 1332 wrote to memory of 4624	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	87
PID 1332 wrote to memory of 4596	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	88
PID 1332 wrote to memory of 4596	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	88
PID 1332 wrote to memory of 4596	1332	0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe	88
PID 4784 wrote to memory of 1072	4784	sdchange.exe	101
PID 4784 wrote to memory of 1072	4784	sdchange.exe	101
PID 4784 wrote to memory of 1072	4784	sdchange.exe	101
PID 4784 wrote to memory of 1072	4784	sdchange.exe	101
PID 4784 wrote to memory of 1072	4784	sdchange.exe	101
PID 4784 wrote to memory of 5100	4784	sdchange.exe	102
PID 4784 wrote to memory of 5100	4784	sdchange.exe	102
PID 4784 wrote to memory of 5100	4784	sdchange.exe	102
PID 4856 wrote to memory of 4228	4856	sdchange.exe	112
PID 4856 wrote to memory of 4228	4856	sdchange.exe	112
PID 4856 wrote to memory of 4228	4856	sdchange.exe	112
PID 4856 wrote to memory of 4228	4856	sdchange.exe	112
PID 4856 wrote to memory of 4228	4856	sdchange.exe	112
PID 4856 wrote to memory of 4464	4856	sdchange.exe	113
PID 4856 wrote to memory of 4464	4856	sdchange.exe	113
PID 4856 wrote to memory of 4464	4856	sdchange.exe	113
PID 3380 wrote to memory of 3656	3380	sdchange.exe	123
PID 3380 wrote to memory of 3656	3380	sdchange.exe	123
PID 3380 wrote to memory of 3656	3380	sdchange.exe	123
PID 3380 wrote to memory of 3656	3380	sdchange.exe	123
PID 3380 wrote to memory of 3656	3380	sdchange.exe	123
PID 3380 wrote to memory of 4640	3380	sdchange.exe	124
PID 3380 wrote to memory of 4640	3380	sdchange.exe	124
PID 3380 wrote to memory of 4640	3380	sdchange.exe	124

C:\Users\Admin\AppData\Local\Temp\0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0e0c2f38d64b80e354087d81b3efef43_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1332
- 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:4624
- 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:4596

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:4784
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:1072
- 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:5100

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:4856
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4228
- 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:4464

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:3380
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:3656
- 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:4640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

RegAsm.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\RegAsm.exe.log
Size 316B
SHA256 8a7cb420c82edf1bb2c7bdfef52091e5169fabaecc370e120985e91406fcbbec
MD5 9f893d94b017a0684012d50319c9ffbe
SHA1 140cc2cb6b2520ba4f9a1f666a5f679853472793
SHA512 4b7df94d3622b82d852b0f532d7fd810ca2113d7b737ec417023d5b2142e9e79414a06d22647d73f8bc114f8e871a3a741a479b0aba48892f9078975ec78acba
MD5 SHA1 SHA512

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sdchange.exe

Path C:\Users\Admin\secinit\sdchange.exe
Size 1.1MB
SHA256 410e53d256c60cc64dc600bdcbde61fb3d57b00542527a969662b2e8377c13a1
MD5 77de97c6dafb0c984498b3382fc857ab
SHA1 4a21aeb37c3618397bfeaa3068ff207109d4ca93
SHA512 18a1177025de500fb1c35438c0ae75c3e9c0ae1ebe79e204f66970c6cd903a5b509e3ca1dc6da280d4f8ca72181b0d6cf28f84b8935bcfcca336ca6acfb4bb45
SSDEEP 24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25I:/h+ZkldoPK8Ya971XjFtAI
MD5 SHA1 SHA512 SSDEEP

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memory/1332-0-0x0000000001060000-0x0000000001061000-memory.dmp

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memory/4624-1-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4624-5-0x0000000074772000-0x0000000074773000-memory.dmp

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memory/4624-6-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/4624-7-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/4624-17-0x0000000074772000-0x0000000074773000-memory.dmp

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memory/4624-18-0x0000000074770000-0x0000000074D21000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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