remcos | 7c78642228af2539c544ef2497ca977cd311b49a0f00ea70fc382732a8ebb929

General

Target

JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
Size

813KB
MD5

de75da301868e54dbb3ee3a4f2c1638b
SHA1

7144ffd9b0c80b2423725df7e2f9ead46758946b
SHA256

7c78642228af2539c544ef2497ca977cd311b49a0f00ea70fc382732a8ebb929
SHA512

d4cb2952a8f2ef00a34af729c89d2293412c4ba780f25f38cad1d4c42be5146415f2e17e8e79566da46ad2600b5cb7fb0fc68f3debf4c4d7e200ea02760ab44b
SSDEEP

24576:Om3vlBMpSYDRuX7unJXvrMYvsOmwYTH3C:Oqw/R/9TMYvhYu

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

3.1.0 Pro

Botnet

RemoteHost

C2

theshooter09.duckdns.org:3839

shooter99.duckdns.org:2404

theshooter09.duckdns.org:37729

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-D4NSTX
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
wikipedia;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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4624 set thread context of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93

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 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	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.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
2632	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2416	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4624 wrote to memory of 2632	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	91
PID 4624 wrote to memory of 2632	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	91
PID 4624 wrote to memory of 2632	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	91
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93
PID 4624 wrote to memory of 2416	4624	JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.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:4624
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YuGbAv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E9D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_de75da301868e54dbb3ee3a4f2c1638b.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2416

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

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
e01fbc6451aabcd4f9cc2ddde4d3c5ce

SHA1
c04c5124f8fe033757b2a6e9e9269801917662e8

SHA256
b6af3a6b9b9de31c76142cd5c2b17031a3f1d34d5df756ddb8212ce6bb668c93

SHA512
fdb68df56f9f103f91a553768688dee4e3c9e3367ca0b36b2ea847fb9cf31f3b56e927a7fee97abc326c53c17a4d4de8e1e7d226db59bf9ed941cedb0a73b395

Download Submit
memory/2416-16-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-20-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-19-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2416-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4624-5-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/4624-9-0x0000000008580000-0x000000000861C000-memory.dmp

Filesize
624KB

Download
memory/4624-10-0x00000000087E0000-0x000000000887C000-memory.dmp

Filesize
624KB

Download
memory/4624-8-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4624-7-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4624-6-0x0000000008250000-0x000000000825E000-memory.dmp

Filesize
56KB

Download
memory/4624-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

Filesize
4KB

Download
memory/4624-4-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4624-3-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

Download
memory/4624-24-0x00000000750C0000-0x0000000075870000-memory.dmp

Filesize
7.7MB

Download
memory/4624-2-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/4624-1-0x0000000000BA0000-0x0000000000C72000-memory.dmp

Filesize
840KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads