remcos | 671ae257a2fa478c737c173e0073b81a009458865c16549078328be69e07996b

General

Target

JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
Size

767KB
MD5

6b4840db648fc6a2abbb5ede4e5a5d31
SHA1

b69d8238d3bbcfe03210ad4687dd603dd27ddb41
SHA256

671ae257a2fa478c737c173e0073b81a009458865c16549078328be69e07996b
SHA512

3a2d636130e60dde9ff718c2cf5755c1ec1bf9b270e0ed7f46e5e7999adef3e09a4cf70f60963c869a1c71d0d0696b8f97b683b33d811cc14553c763938fbf90
SSDEEP

12288:ka/qUi2iNTZKgcb5HHGr1ZdVd0CpYb3rG5LuO39nqtnImHqzhO7PJK6G3iF:CUi11ZTcbJHGrPvqb39OtnqnGqPJKLSF

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

172.111.153.101:5888

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-5VO1QH
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

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

Checks computer location settings 2 TTPs 1 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4412 set thread context of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 1980	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	99
PID 4412 wrote to memory of 1980	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	99
PID 4412 wrote to memory of 1980	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	99
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100
PID 4412 wrote to memory of 4380	4412	JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe	100

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aVoduRhDdfoqJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3776.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1980
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b4840db648fc6a2abbb5ede4e5a5d31.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4380-27-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-25-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-32-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-30-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-29-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-28-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-26-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-21-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-22-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-34-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-31-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-24-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4380-20-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4412-10-0x00000000066B0000-0x000000000674C000-memory.dmp

Filesize
624KB

Download
memory/4412-23-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-9-0x00000000064E0000-0x000000000657C000-memory.dmp

Filesize
624KB

Download
memory/4412-1-0x0000000000C50000-0x0000000000D16000-memory.dmp

Filesize
792KB

Download
memory/4412-8-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/4412-7-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/4412-6-0x0000000005AC0000-0x0000000005ACE000-memory.dmp

Filesize
56KB

Download
memory/4412-5-0x00000000743F0000-0x0000000074BA0000-memory.dmp

Filesize
7.7MB

Download
memory/4412-4-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/4412-3-0x00000000056C0000-0x0000000005752000-memory.dmp

Filesize
584KB

Download
memory/4412-2-0x0000000005D90000-0x0000000006334000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads