remcos | 49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc

General

Target

49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
Size

482KB
MD5

ccab8be1b5d0ec4ede3ecb02a9551180
SHA1

f170b1ad7d2aaee7d81c820d5a9d20877b7cca9c
SHA256

49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc
SHA512

c2861c1cd105a8682926671beb0b622ca8c536e6c94f96876c96aecd794aabaa15c01fedb3e66210246d15096836e2f1cecf878a336fa8029c9ac07c39f508e4
SSDEEP

6144:bTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZmAX4cr2T4:bTlrYw1RUh3NFn+N5WfIQIjbs/Zm5T4

Score

10^/10

remcos ezeife collection credential_access discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

ezeife

C2

closen.kozow.com:2404

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-CDP1EM
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 9 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/844-13-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3004-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1416-24-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3004-20-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1416-16-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3004-15-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1416-12-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/844-8-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/844-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3004-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3004-20-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3004-15-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/844-13-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/844-8-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/844-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3476 set thread context of 844	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	86
PID 3476 set thread context of 3004	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	87
PID 3476 set thread context of 1416	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	88

System Location Discovery: System Language Discovery 1 TTPs 4 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	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
844	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
844	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
1416	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
1416	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
844	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
844	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1416	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 844	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	86
PID 3476 wrote to memory of 844	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	86
PID 3476 wrote to memory of 844	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	86
PID 3476 wrote to memory of 3004	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	87
PID 3476 wrote to memory of 3004	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	87
PID 3476 wrote to memory of 3004	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	87
PID 3476 wrote to memory of 1416	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	88
PID 3476 wrote to memory of 1416	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	88
PID 3476 wrote to memory of 1416	3476	49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe	88

C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
"C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
  C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe /stext "C:\Users\Admin\AppData\Local\Temp\awzurdxlu"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:844
- C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
  C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe /stext "C:\Users\Admin\AppData\Local\Temp\cremsvhfiltg"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:3004
- C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe
  C:\Users\Admin\AppData\Local\Temp\49630168d264eaf442a51ac629b22598afb6d9e127a7c2313f5fa13be41c95dc.exe /stext "C:\Users\Admin\AppData\Local\Temp\mlsftosgebltcba"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
e868252f51ba4c2db4514c9a4f13474a

SHA1
d8e6cf1f19876bfda77caf5c32a49ca8d9ebf728

SHA256
f4080ddc2564005006d3518803d1a0da9efb65a2176630748df270d0ac132f09

SHA512
e4c37d70f434200d27dbd4467e7ebc6ef950354a3e11bbc19d72116887e74a864ee5837ebc81408f9c3588e97602aba7e560fb19033a0d2136211b9a35a57773

Download Submit
C:\Users\Admin\AppData\Local\Temp\awzurdxlu

Filesize
4KB

MD5
18db1829b27eaeed163c211f5d179d72

SHA1
4442332494cba1e012f8876ecac42126ba995bc6

SHA256
610c5ee3f0e63441521d26bc477c9618a4c5f86e93d31b31890680c69e3ecc3d

SHA512
123d68b2c84f7a52d15faa212c06f33b04a55585e2aeb16bb14df95b18c0bcf31933e5bf0c736c90bc054b9527fccb046540d3302a0f149ebeed7c6bcca0b986

Download Submit
memory/844-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/844-5-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/844-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/844-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/844-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1416-21-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/1416-24-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1416-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1416-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1416-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1416-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3004-20-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3004-15-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3004-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3004-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3004-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3476-29-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3476-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3476-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3476-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3476-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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