remcos | 643d70b162fbca24123f8c5ad6bab6fb1aa6166fb66a414910a5b78bd68320cf

General

Target

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe
Size

1.3MB
MD5

918440a507b6126c6c1ec851e86ba6fa
SHA1

e0cc0bd52ad59393b405bbf1bb44e499771ecf07
SHA256

643d70b162fbca24123f8c5ad6bab6fb1aa6166fb66a414910a5b78bd68320cf
SHA512

3b7fd75b9a8156c563bd28dd67e59375c2ce3b33af41c03aef28a7a444db7d63033011082dcaf29fb8abc6934d3c310d27e6702cd8a12c4054aecd710997b3f5
SSDEEP

24576:RFzkeYmtm7gEVVsg8ELiSTE2xODxMmoHNJoJ1VPAfhuPu:R9keFtmmrCBDmUNo1VPQhum

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

RemoteHost

C2

45.137.22.101:5888

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-N9SJBV
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

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059
Suspicious use of SetThreadContext 1 IoCs

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

description pid process target process

PID 2220 set thread context of 3080 2220 918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe vbc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 2220 set thread context of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe

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

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exeschtasks.exevbc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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

Processes:

schtasks.exe

pid process

1972 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

pid process

2220 918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 2220 918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

pid	process
1972	schtasks.exe

pid	process
2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe

description	pid	process	target process
PID 2220 wrote to memory of 1972	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	schtasks.exe
PID 2220 wrote to memory of 1972	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	schtasks.exe
PID 2220 wrote to memory of 1972	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	schtasks.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe
PID 2220 wrote to memory of 3080	2220	918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\918440a507b6126c6c1ec851e86ba6fa_JaffaCakes118.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:2220
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kdRnOOKboEZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5186.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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\Local\Temp\tmp5186.tmp

Filesize
1KB

MD5
e6cf92b10c37715157d99001dc965ebe

SHA1
a1cc7a60f68c5aec8e41f4408512d5a8f6eeb152

SHA256
bb6e74355964c8ecc57bfc4ebebf19523538faf77d25e8db3db691c394b95805

SHA512
e291e9e3c0547e3ca3de78a09346f9b6f37bcd90cb6870562cd20079f07fb975e27f7d098b783ccbba00be3e0a7bd46f3176e98cabc27dfd7f53018b32bf3b36

Download Submit
memory/2220-10-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2220-11-0x0000000007BE0000-0x0000000007CAE000-memory.dmp

Filesize
824KB

Download
memory/2220-3-0x0000000005520000-0x0000000005AC4000-memory.dmp

Filesize
5.6MB

Download
memory/2220-4-0x0000000004F70000-0x0000000005002000-memory.dmp

Filesize
584KB

Download
memory/2220-5-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

Filesize
40KB

Download
memory/2220-6-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/2220-7-0x0000000005200000-0x0000000005256000-memory.dmp

Filesize
344KB

Download
memory/2220-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/2220-9-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/2220-2-0x0000000004ED0000-0x0000000004F6C000-memory.dmp

Filesize
624KB

Download
memory/2220-8-0x0000000005500000-0x000000000551E000-memory.dmp

Filesize
120KB

Download
memory/2220-12-0x00000000048F0000-0x0000000004968000-memory.dmp

Filesize
480KB

Download
memory/2220-1-0x00000000004E0000-0x0000000000634000-memory.dmp

Filesize
1.3MB

Download
memory/2220-24-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/3080-23-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3080-22-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3080-21-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3080-19-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3080-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3080-25-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads