remcos | 8b44f1a914d853ce6df51bb8e1971576c34129e2d5408d5670ca84e57260fb48

General

Target

f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe
Size

992KB
MD5

f9612b2394ab6f23737fe1d3f020e0e1
SHA1

1649476b8e42afdf3a08d66e54a63047ae851cbb
SHA256

8b44f1a914d853ce6df51bb8e1971576c34129e2d5408d5670ca84e57260fb48
SHA512

09a2036afa78fabef7035fb105e780478984ecbf3cfe6f20eb5ff89d74c419b339f6238e10e8ae30095e9aca1bbc0d3d9842d7204f67b597e440ac60e328da3a
SSDEEP

12288:yQodBdt1J9hgwl4LLdTalhRtfi01U5RSrfZb4L0wACWKcT:yQQDOL1WhHfXavS7V4YwACC

Score

10^/10

remcos discovery persistence rat

Malware Config

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

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft OneDrive = "C:\\Users\\Admin\\AppData\\Local\\Chrome\\StikyNot.exe"	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2628 set thread context of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32

System Location Discovery: System Language Discovery 1 TTPs 3 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	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2720 wrote to memory of 2628	2720	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	31
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32
PID 2628 wrote to memory of 2356	2628	f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\f9612b2394ab6f23737fe1d3f020e0e1_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2356-26-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2628-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-9-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-18-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-15-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-19-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-28-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-7-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-25-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2628-24-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2720-6-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-0-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-5-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-4-0x000000000053E000-0x000000000053F000-memory.dmp

Filesize
4KB

Download
memory/2720-23-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-1-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-3-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/2720-2-0x0000000000400000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads