remcos | 8892e1c5c4ae3d6d95f28bd90def3eb112e53846447ca4d6ca48d58db7525558

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 15:41

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General

Target

d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe
Size

942KB
MD5

d4b2e4565b099e8e84bf27fd96b2d300
SHA1

9ea22f7bf63ccf1c20bc42075f1048c503bb8cdb
SHA256

8892e1c5c4ae3d6d95f28bd90def3eb112e53846447ca4d6ca48d58db7525558
SHA512

413449db7017b7defa9861f59750bbe043e82abf2c25da291b274f3e1582deee46914633d6744e9d93c612e9085f6a1ee3ede1029ebe25122ac9d6072269f72a
SSDEEP

24576:nu6J33O0c+JY5UZ+XC0kGso6FaekAKo314WY:hu0c++OCvkGs9FaelFY

Score

10^/10

remcos discovery rat upx

Malware Config

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4856-1-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4856-7-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4856-8-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4856-9-0x0000000000400000-0x0000000000426000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2700 set thread context of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2700 wrote to memory of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83
PID 2700 wrote to memory of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83
PID 2700 wrote to memory of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83
PID 2700 wrote to memory of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83
PID 2700 wrote to memory of 4856	2700	d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe	83

C:\Users\Admin\AppData\Local\Temp\d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Local\Temp\d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d4b2e4565b099e8e84bf27fd96b2d300_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2700-0-0x0000000001260000-0x0000000001261000-memory.dmp

Filesize
4KB

Download
memory/4856-1-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4856-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4856-8-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4856-9-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download