remcos | 89761ac5c1a3887d4dbb9d65efe721bf9f03fc607e5869b8d98c2ee36bfb129f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 09:27

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General

Target

f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe
Size

687KB
MD5

f35a8c14e8db517ba87733afc993f39b
SHA1

ad7daa444bbafc984e0cf3441adf924887c16e79
SHA256

89761ac5c1a3887d4dbb9d65efe721bf9f03fc607e5869b8d98c2ee36bfb129f
SHA512

0ab563af74786902240e965a4062c5f6befb4d11fcd11042e4f786b54e0eb936584d47abdd588b9a4132e09bbccafba20ece64035d9a0a3eeb27afdefcaed7a0
SSDEEP

12288:PqMUpN8MEnz7ln4RN/9H48+Ltey1t2HA1S1zgDy7KmQqX0h28wel2GjJp20ZDnvx:SxHMl4RNFH48KFXS1MDy

Score

10^/10

remcos osiris discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

OSIRIS

osiris8612.duckdns.org:1616

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-4RTLP1
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4212 set thread context of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.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	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
4616	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4288	RegSvcs.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 4616	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	98
PID 4212 wrote to memory of 4616	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	98
PID 4212 wrote to memory of 4616	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	98
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100
PID 4212 wrote to memory of 4288	4212	f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe	100

C:\Users\Admin\AppData\Local\Temp\f35a8c14e8db517ba87733afc993f39b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f35a8c14e8db517ba87733afc993f39b_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:4212
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GJFTgPDfR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1F89.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1F89.tmp

Filesize
1KB

MD5
16cd1aa50b0c6a07c2e05b607123e49e

SHA1
e4a8bd38a67e0149c6c5fe15f003af51ccacfee4

SHA256
0fb2b9577b16a61fe85c3cfb7c5e4dd5ef4d5bbaaeba47d53ca7c64f8255883f

SHA512
149cf23646be7372c39e970e00834bf05039bdd9b3ba4c8161016dbf3e05b677d65bb60e0b96aaeadb273db1a58323027ba7cd1565ec8481286bdca5e9a33a8c

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

Filesize
74B

MD5
d764212330efc2e0a0c6ba419441670f

SHA1
fbc499b2a0fa56277a8bd659a86ee013be97c7c1

SHA256
daf939d396b95e8a831494b662f2f8636236930907c0cd79da6ed9e887987498

SHA512
af897f56f22aa5a42fae57e04ca17248cd7a9cd2232a8dcf10590530ed00a11aea7e7c2e90177f4b2bfa535eb040b6b15e0e19886510e8f526b4267f6cec881d

Download Submit
memory/4212-0-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4212-1-0x0000000000100000-0x00000000001B2000-memory.dmp

Filesize
712KB

Download
memory/4212-2-0x0000000007560000-0x0000000007B04000-memory.dmp

Filesize
5.6MB

Download
memory/4212-3-0x0000000007050000-0x00000000070E2000-memory.dmp

Filesize
584KB

Download
memory/4212-4-0x0000000004600000-0x000000000460A000-memory.dmp

Filesize
40KB

Download
memory/4212-5-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4212-6-0x0000000004C30000-0x0000000004C38000-memory.dmp

Filesize
32KB

Download
memory/4212-7-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

Filesize
624KB

Download
memory/4212-8-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/4212-9-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4212-10-0x0000000005170000-0x00000000051EC000-memory.dmp

Filesize
496KB

Download
memory/4212-11-0x0000000004BE0000-0x0000000004C10000-memory.dmp

Filesize
192KB

Download
memory/4212-24-0x0000000074870000-0x0000000075020000-memory.dmp

Filesize
7.7MB

Download
memory/4288-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-19-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-22-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-23-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-41-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-42-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-45-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-46-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-49-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-50-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-51-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-54-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-58-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-59-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-68-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-69-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-71-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-73-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-80-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-82-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-83-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-84-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4288-86-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download