remcos | 643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
07-08-2024 01:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe
Size

2.2MB
MD5

3ed90b2bd6ec121cf790ecad26211841
SHA1

d94d98f456cdc4361c570ecd58c610d028f59cfa
SHA256

643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a
SHA512

9b3974210037f14af9ba26dfc1b36fecae9c54f959ba9ef458b088f126b77b269d3dc1990066e8f940739a78889104be206b8ef37b9837215e494e93bd846681
SSDEEP

24576:aj553zh61j6HexTq60rWTu2mTOI40R4c0vuu0:aj553z0celp0aC2mTd+uH

Score

10^/10

remcos dollar man collection credential_access discovery rat stealer

Malware Config

Extracted

Family

remcos

Botnet

Dollar Man

178.23.190.118:52499

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-SJ9MVF
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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3502430532-24693940-2469786940-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 2672 set thread context of 2808	2672	iexplore.exe	35
PID 2672 set thread context of 2828	2672	iexplore.exe	36
PID 2672 set thread context of 2832	2672	iexplore.exe	37

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2808	iexplore.exe
2808	iexplore.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2672	iexplore.exe
2672	iexplore.exe
2672	iexplore.exe
2672	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2672	iexplore.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2672	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	32
PID 3040 wrote to memory of 2932	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	33
PID 3040 wrote to memory of 2932	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	33
PID 3040 wrote to memory of 2932	3040	643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe	33
PID 2672 wrote to memory of 2792	2672	iexplore.exe	34
PID 2672 wrote to memory of 2792	2672	iexplore.exe	34
PID 2672 wrote to memory of 2792	2672	iexplore.exe	34
PID 2672 wrote to memory of 2792	2672	iexplore.exe	34
PID 2672 wrote to memory of 2808	2672	iexplore.exe	35
PID 2672 wrote to memory of 2808	2672	iexplore.exe	35
PID 2672 wrote to memory of 2808	2672	iexplore.exe	35
PID 2672 wrote to memory of 2808	2672	iexplore.exe	35
PID 2672 wrote to memory of 2808	2672	iexplore.exe	35
PID 2672 wrote to memory of 2828	2672	iexplore.exe	36
PID 2672 wrote to memory of 2828	2672	iexplore.exe	36
PID 2672 wrote to memory of 2828	2672	iexplore.exe	36
PID 2672 wrote to memory of 2828	2672	iexplore.exe	36
PID 2672 wrote to memory of 2828	2672	iexplore.exe	36
PID 2672 wrote to memory of 2832	2672	iexplore.exe	37
PID 2672 wrote to memory of 2832	2672	iexplore.exe	37
PID 2672 wrote to memory of 2832	2672	iexplore.exe	37
PID 2672 wrote to memory of 2832	2672	iexplore.exe	37
PID 2672 wrote to memory of 2832	2672	iexplore.exe	37

C:\Users\Admin\AppData\Local\Temp\643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe
"C:\Users\Admin\AppData\Local\Temp\643392c6e6e08f0b36bebb32b6c14a32185db723dabbb36b910dd65025522b3a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\wovqpfwybqxosphtcameqxu"
    3⤵
    PID:2792
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\wovqpfwybqxosphtcameqxu"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2808
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\gibbqyhzpyptdvvxllyxtcofrx"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2828
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe" /stext "C:\Users\Admin\AppData\Local\Temp\jkgtjqrtdghgfcrbdvlzepbwsdnnol"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2832
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 3040 -s 624
  2⤵
  PID:2932

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
286B

MD5
f6a5ec27904edb30afc3fb862ac67c23

SHA1
ed0a9b5ea044762f40c05cf667c7a9895f91adad

SHA256
13b4f466f7d10fac4f389677611802d3eb232b0abecfe6a3d571d0596512cee2

SHA512
cdac645dbd7441f054add9c5cc9d1312a898674c12c9282eb86e09a577d7be6154bedb09be53f5a23493e4098b7f7077c12c409606b975266acfd0954375bfd9

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2672-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2808-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2828-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2832-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3040-4-0x000000001AC80000-0x000000001AD50000-memory.dmp

Filesize
832KB

Download
memory/3040-0-0x000007FEF5C03000-0x000007FEF5C04000-memory.dmp

Filesize
4KB

Download
memory/3040-3-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/3040-2-0x0000000000020000-0x0000000000026000-memory.dmp

Filesize
24KB

Download
memory/3040-19-0x000007FEF5C03000-0x000007FEF5C04000-memory.dmp

Filesize
4KB

Download
memory/3040-20-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/3040-1-0x0000000000E20000-0x0000000000E46000-memory.dmp

Filesize
152KB

Download