remcos | 4fa4ab75bd8f5439907cadec8c16b8e006045e73bc45adbbd5ab368b20cf2c5f

Analysis

max time kernel
148s
max time network
147s
platform
windows10_x64
resource
win10v20210408
submitted
07-05-2021 16:02

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General

Target

Swift-Correction.exe
Size

702KB
MD5

a9d4da3791d728d32e7b4bfc823744b9
SHA1

82fda97279a81db1010e3df2ae6cbf69eae1f956
SHA256

4fa4ab75bd8f5439907cadec8c16b8e006045e73bc45adbbd5ab368b20cf2c5f
SHA512

e150f215640ecc00a0b1d5ade277d89c1b4aefde8cb8585b6a40db0f54a042bed572c4d80e1c208610c3843747f4a301362c85ecb990748f967d709bffef97a0

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

79.134.225.19:2555

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Swift-Correction.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ucgrcu = "C:\\Users\\Public\\ucrgcU.url"	Swift-Correction.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Swift-Correction.exe

description pid process target process

PID 3920 set thread context of 1996 3920 Swift-Correction.exe Swift-Correction.exe

description	pid	process	target process
PID 3920 set thread context of 1996	3920	Swift-Correction.exe	Swift-Correction.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

Swift-Correction.exe

description	pid	process	target process
PID 3920 wrote to memory of 1996	3920	Swift-Correction.exe	Swift-Correction.exe
PID 3920 wrote to memory of 1996	3920	Swift-Correction.exe	Swift-Correction.exe
PID 3920 wrote to memory of 1996	3920	Swift-Correction.exe	Swift-Correction.exe
PID 3920 wrote to memory of 1996	3920	Swift-Correction.exe	Swift-Correction.exe
PID 3920 wrote to memory of 1996	3920	Swift-Correction.exe	Swift-Correction.exe

C:\Users\Admin\AppData\Local\Temp\Swift-Correction.exe
"C:\Users\Admin\AppData\Local\Temp\Swift-Correction.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3920
- C:\Users\Admin\AppData\Local\Temp\Swift-Correction.exe
  C:\Users\Admin\AppData\Local\Temp\Swift-Correction.exe
  2⤵
  PID:1996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1996-115-0x0000000000580000-0x00000000005FC000-memory.dmp

Filesize
496KB

Download
memory/1996-116-0x00000000005815CA-mapping.dmp

Download
memory/1996-118-0x00000000004C0000-0x000000000056E000-memory.dmp

Filesize
696KB

Download
memory/1996-117-0x0000000000580000-0x00000000005FC000-memory.dmp

Filesize
496KB

Download
memory/3920-114-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download