remcos | e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5b

General

Target

e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
Size

2.1MB
MD5

d365bdd9aae938e7e7f01e64539c55d0
SHA1

88fa077545b9d3470047a93b0a60733826c84ac8
SHA256

e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5b
SHA512

27728711291d0a5bcffb8f66706efcc310caa504dbfa24f4cd8342c2ec05fbb27b22ed7c5b889908621ef1cd686a57657c57a88e36d2715f7d7afd99d6bba026
SSDEEP

24576:bD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJjRH7:bp7E+QrFUBgq2SnJ7

Score

10^/10

remcos host credential_access discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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
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

Executes dropped EXE 2 IoCs

pid	Process
2912	sbietrcl.exe
1500	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 1500	2912	sbietrcl.exe	32

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	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
2912	sbietrcl.exe
2912	sbietrcl.exe
2912	sbietrcl.exe
2912	sbietrcl.exe
2912	sbietrcl.exe
2912	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
Token: SeDebugPrivilege	2912	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1500	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 2912	2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe	31
PID 2460 wrote to memory of 2912	2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe	31
PID 2460 wrote to memory of 2912	2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe	31
PID 2460 wrote to memory of 2912	2460	e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe	31
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32
PID 2912 wrote to memory of 1500	2912	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe
"C:\Users\Admin\AppData\Local\Temp\e3b98444fa75091950ae3e074aa7904e254152197164775f236a4277f53b2b5bN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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 Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
a4d246a9d41431c17b71978889930d45

SHA1
49c83acec8fa7cea09948d74226e0eebc46355af

SHA256
5d1b2a1a1ecb22ccd9c5870fcf11e94ccef6f2ea7080f1de341c7c17df9e5836

SHA512
9b36f811b49ed09c207b500b2de8aa023a37868aa096112623be5a79648693293f4d7a9561ee6e8372b2d06cca792304ab2974a4832cd4d0d379ead8ce448f58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
2fe2d5a81a9d86380d41e230b026291e

SHA1
3ef331991934fed5bad2f2de0beaa54e4832a31b

SHA256
23ddbd836eb5ab428996f78f8a12f657ca889fd63b5ea2160c2bac22d25b7e2c

SHA512
eff2b2d0ff44630eca18577dbf514c9dd7f3cb5b082f1c6c051e6ea73d070cf968b86d4fce382d6d2b61ce21cb8cc0aeb54fef35688888b25aa7d0c377e1e707

Download Submit
C:\Users\Admin\AppData\Local\Temp\CabD403.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarD406.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
2.2MB

MD5
c8272ad1db7483c9edfb5eedce6b89a7

SHA1
0bd9a8987100463e228d1b8b698ec9bdc46f4f21

SHA256
fa180f843e97d1a40cfa77d8272872cd425a20756bbc22800455b5a4e4c44dfe

SHA512
4dcb669bac8fc65475c5e75ace3178fe0a5b6a4d9b6cc585d847fc6ef54c808ea8c35af8abfa8a414f4ab040f3c6b0a7fc2c0a17024e224f8fa74f811de5cf42

Download Submit
memory/1500-194-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-202-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1500-211-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-207-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-210-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-205-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-200-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-192-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-196-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-198-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1500-203-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2460-180-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2460-1-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2460-0-0x00000000747C1000-0x00000000747C2000-memory.dmp

Filesize
4KB

Download
memory/2460-161-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2460-160-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2460-173-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2912-181-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download
memory/2912-206-0x00000000747C0000-0x0000000074D6B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads