limerat | 0ab7b0b931490bf95e8dd6ec8e9f3d014b5c93b2ba3b3a32445f481f2db2bdb6

Analysis

max time kernel
146s
max time network
147s
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, 22:53

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General

Target
0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe
Size 1.1MB
Sample240502-2vgnmsaf79
SHA256 0ab7b0b931490bf95e8dd6ec8e9f3d014b5c93b2ba3b3a32445f481f2db2bdb6
MD5 0f12d87b67f6175122a15eadddfa53bb
SHA1 477c5eacc92fb3e7c7fc149fc394c02e1a28eebb
SHA512 cae908d4849d91645c10bb43cd697696c5b1866b71ef04767f2d88523d6a1e8a1df44b0ee528c13d2e1563db10ce45c3127deb985b62f08c61d658c5a4ec0ae9
SSDEEP 24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25w:/h+ZkldoPK8Ya971XjFtAw
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 3 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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	sdchange.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	sdchange.exe

Executes dropped EXE 2 IoCs

pid	Process
4504	sdchange.exe
676	sdchange.exe

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

Web Service

T1102

flow	ioc
26	pastebin.com
27	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/0x000b000000023ba4-12.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4380 set thread context of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4504 set thread context of 4368	4504	sdchange.exe	103
PID 676 set thread context of 4496	676	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
4764	schtasks.exe
3500	schtasks.exe
3264	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	RegAsm.exe
Token: SeDebugPrivilege	3404	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4380 wrote to memory of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4380 wrote to memory of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4380 wrote to memory of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4380 wrote to memory of 3404	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	87
PID 4380 wrote to memory of 3500	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	88
PID 4380 wrote to memory of 3500	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	88
PID 4380 wrote to memory of 3500	4380	0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe	88
PID 4504 wrote to memory of 4368	4504	sdchange.exe	103
PID 4504 wrote to memory of 4368	4504	sdchange.exe	103
PID 4504 wrote to memory of 4368	4504	sdchange.exe	103
PID 4504 wrote to memory of 4368	4504	sdchange.exe	103
PID 4504 wrote to memory of 4368	4504	sdchange.exe	103
PID 4504 wrote to memory of 3264	4504	sdchange.exe	104
PID 4504 wrote to memory of 3264	4504	sdchange.exe	104
PID 4504 wrote to memory of 3264	4504	sdchange.exe	104
PID 676 wrote to memory of 4496	676	sdchange.exe	118
PID 676 wrote to memory of 4496	676	sdchange.exe	118
PID 676 wrote to memory of 4496	676	sdchange.exe	118
PID 676 wrote to memory of 4496	676	sdchange.exe	118
PID 676 wrote to memory of 4496	676	sdchange.exe	118
PID 676 wrote to memory of 4764	676	sdchange.exe	119
PID 676 wrote to memory of 4764	676	sdchange.exe	119
PID 676 wrote to memory of 4764	676	sdchange.exe	119

C:\Users\Admin\AppData\Local\Temp\0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0f12d87b67f6175122a15eadddfa53bb_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4380
- 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:3404
- 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:3500

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:4504
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4368
- 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:3264

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:676
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  PID:4496
- 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:4764

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 9aa217a1855e8014c67aedbb473cfef1cf769122f1f2a0ef8d54bee937856d5a
MD5 6943e12bb5bab651347dacf97dc43efb
SHA1 47bb740149c7ba89d45843d98a1b2ec6159bb38d
SHA512 11a25f990abc9b5e279225fe14b52af45ae4d047dc5bbc1f63d1fd099c024d3d97453547d2cfed50bee76efa8b8c9c1b61a31c6019bb3ba6328ddb7caacdb052
SSDEEP 24576:4AHnh+eWsN3skA4RV1Hom2KXMmHa97aWtjzjFtuM25H:/h+ZkldoPK8Ya971XjFtAH
MD5 SHA1 SHA512 SSDEEP

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memory/3404-0-0x0000000000410000-0x000000000041C000-memory.dmp

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memory/3404-5-0x00000000744F2000-0x00000000744F3000-memory.dmp

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memory/3404-6-0x00000000744F0000-0x0000000074AA1000-memory.dmp

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memory/3404-7-0x00000000744F0000-0x0000000074AA1000-memory.dmp

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memory/3404-10-0x00000000744F2000-0x00000000744F3000-memory.dmp

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memory/3404-11-0x00000000744F0000-0x0000000074AA1000-memory.dmp

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memory/4368-14-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4380-4-0x0000000001180000-0x0000000001181000-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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Downloads