remcos | ef43e9475ed3cf0420900e7f29345c646978eaf6b9ae749bfe265061dfdc172b

General

Target

Nicht bestätigt 44301.exe
Size

1.5MB
MD5

dd1e9bbd16698d52fb6501664beabde6
SHA1

d985290853ab46a1d98fa23b33ed003500c71bae
SHA256

ef43e9475ed3cf0420900e7f29345c646978eaf6b9ae749bfe265061dfdc172b
SHA512

f9650ecd6063c7e8a0a24806d30ebc66dea261711241ab2a8eca675949860fc87e3e2ff53c5d4279a7fcd8979405f459e5058b098e5ba5398bfbdb23c34a09fd
SSDEEP

49152:kUKg7X7cHxjXoNXhXcmpQGpk03bFDDIfgNz:kUj7UXoNhXcHq3b2YNz

Score

10^/10

remcos remotehost collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.96.14.18:2404

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-OB0RTV
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4984-45-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral2/memory/4984-38-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3184-40-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3184-35-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3184-54-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral2/memory/4984-45-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/3184-40-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4984-38-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/3184-35-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/636-49-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/636-50-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3184-54-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

Loads dropped DLL 1 IoCs

pid	Process
2560	Nicht bestätigt 44301.exe

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-1-5-21-984744499-3605095035-265325720-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Nicht bestätigt 44301.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2976	Nicht bestätigt 44301.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2560	Nicht bestätigt 44301.exe
2976	Nicht bestätigt 44301.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2560 set thread context of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2976 set thread context of 3184	2976	Nicht bestätigt 44301.exe	100
PID 2976 set thread context of 4984	2976	Nicht bestätigt 44301.exe	101
PID 2976 set thread context of 636	2976	Nicht bestätigt 44301.exe	102

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\lommetoerklaedet.For	Nicht bestätigt 44301.exe
File opened for modification	C:\Program Files (x86)\Common Files\rabble\Overhouse.ini	Nicht bestätigt 44301.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\arsenalerne.ove	Nicht bestätigt 44301.exe
File created	C:\Windows\Rekyls.lnk	Nicht bestätigt 44301.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4996	2976	WerFault.exe	98

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3184	Nicht bestätigt 44301.exe
3184	Nicht bestätigt 44301.exe
636	Nicht bestätigt 44301.exe
636	Nicht bestätigt 44301.exe
3184	Nicht bestätigt 44301.exe
3184	Nicht bestätigt 44301.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2560	Nicht bestätigt 44301.exe
2976	Nicht bestätigt 44301.exe
2976	Nicht bestätigt 44301.exe
2976	Nicht bestätigt 44301.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	636	Nicht bestätigt 44301.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2976	Nicht bestätigt 44301.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2560 wrote to memory of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2560 wrote to memory of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2560 wrote to memory of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2560 wrote to memory of 2976	2560	Nicht bestätigt 44301.exe	98
PID 2976 wrote to memory of 3184	2976	Nicht bestätigt 44301.exe	100
PID 2976 wrote to memory of 3184	2976	Nicht bestätigt 44301.exe	100
PID 2976 wrote to memory of 3184	2976	Nicht bestätigt 44301.exe	100
PID 2976 wrote to memory of 4984	2976	Nicht bestätigt 44301.exe	101
PID 2976 wrote to memory of 4984	2976	Nicht bestätigt 44301.exe	101
PID 2976 wrote to memory of 4984	2976	Nicht bestätigt 44301.exe	101
PID 2976 wrote to memory of 636	2976	Nicht bestätigt 44301.exe	102
PID 2976 wrote to memory of 636	2976	Nicht bestätigt 44301.exe	102
PID 2976 wrote to memory of 636	2976	Nicht bestätigt 44301.exe	102

C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe
"C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe
  "C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2976
- - C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe
    "C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe" /stext "C:\Users\Admin\AppData\Local\Temp\fvcwejffk"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3184
- - C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe
    "C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe" /stext "C:\Users\Admin\AppData\Local\Temp\pphofcpgylan"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:4984
- - C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe
    "C:\Users\Admin\AppData\Local\Temp\Nicht bestätigt 44301.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ssmzguaamtssvet"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:636
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 1432
    3⤵
    - Program crash
    PID:4996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2976 -ip 2976
1⤵
PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\fvcwejffk

Filesize
4KB

MD5
2878d4e5cf3f445259717eef565b653d

SHA1
0acce77a54346135628df0ec5e54b808bbd6ff11

SHA256
c97718d36d80005338b0f594c21dfdc2d5345fc05b62f381e5052cfe836595ae

SHA512
016e2cb00529273ca7022fe095861877b61fded3b9713d32765d55d621218dba5ace20ca2122cf5b012777a0ffe4edf8709c9f68490d104d6c79ea458036105d

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsvA00B.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/636-49-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/636-36-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/636-50-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/636-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2560-19-0x00000000775E1000-0x0000000077701000-memory.dmp

Filesize
1.1MB

Download
memory/2560-20-0x0000000074230000-0x0000000074236000-memory.dmp

Filesize
24KB

Download
memory/2976-57-0x00000000362D0000-0x00000000362E9000-memory.dmp

Filesize
100KB

Download
memory/2976-27-0x00000000004B0000-0x00000000056AB000-memory.dmp

Filesize
82.0MB

Download
memory/2976-64-0x00000000362D0000-0x00000000362E9000-memory.dmp

Filesize
100KB

Download
memory/2976-61-0x00000000004B0000-0x00000000056AB000-memory.dmp

Filesize
82.0MB

Download
memory/2976-62-0x0000000072FD0000-0x0000000074224000-memory.dmp

Filesize
18.3MB

Download
memory/2976-22-0x0000000077685000-0x0000000077686000-memory.dmp

Filesize
4KB

Download
memory/2976-21-0x0000000077668000-0x0000000077669000-memory.dmp

Filesize
4KB

Download
memory/2976-60-0x00000000362D0000-0x00000000362E9000-memory.dmp

Filesize
100KB

Download
memory/2976-23-0x0000000072FD0000-0x0000000074224000-memory.dmp

Filesize
18.3MB

Download
memory/2976-37-0x00000000775E1000-0x0000000077701000-memory.dmp

Filesize
1.1MB

Download
memory/3184-35-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3184-40-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3184-54-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3184-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3184-29-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4984-45-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4984-38-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4984-30-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4984-34-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download

Analysis

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