remcos | e9e3b4a2ddf339aa09a48684593ad439640432f56b1e3c6cf0f2b41fcac9aef2

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03/08/2024, 06:58

Sharing

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Report Analysis Logs

General

Target

Geron Steel-Order-79376- Contract 2025.exe
Size

122KB
MD5

259de4d35dd0423eb6e2d45909c6ea01
SHA1

d402a26707c43815d1f8668430b22cf9b1fdf370
SHA256

f3258b7f18cf2b576d36f0f7c8c5b762b1f77170bc2837378d99013dd7177b8b
SHA512

bec647640bb711978c663f1a5b5de7985dfa3bc4c91c6bbfb21ca970a139bb68f09c58b890724ffe776b607a69ce10c5e34531c7cda884cb2d215337fe8a61dc
SSDEEP

3072:mh0mPoyeApSuOBoCUTdYg3QFzthPjo9lyfZzZ+4DN:3AXXCUTdd3QuyfF

Score

10^/10

remcos fresh collection credential_access discovery rat stealer

Malware Config

Extracted

Family

remcos

Botnet

Fresh

taysour6lakut1.duckdns.org:1960

taysour6lakut1.duckdns.org:1961

taysour6lakut2.duckdns.org:1960

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
mzpos.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
kmgvboirfg-VIHET7
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 5 IoCs

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

resource	yara_rule
behavioral1/memory/2224-67-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1868-66-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1700-62-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2224-61-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2224-72-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1700-62-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2224-67-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2224-61-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2224-72-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	RegSvcs.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2200 set thread context of 2224	2200	RegSvcs.exe	35
PID 2200 set thread context of 1700	2200	RegSvcs.exe	36
PID 2200 set thread context of 1868	2200	RegSvcs.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	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.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
1960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2164	Geron Steel-Order-79376- Contract 2025.exe
2164	Geron Steel-Order-79376- Contract 2025.exe
2224	RegSvcs.exe
2224	RegSvcs.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2200	RegSvcs.exe
2200	RegSvcs.exe
2200	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	Geron Steel-Order-79376- Contract 2025.exe
Token: SeDebugPrivilege	1868	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2200	RegSvcs.exe

Suspicious use of WriteProcessMemory 53 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2972	2164	Geron Steel-Order-79376- Contract 2025.exe	30
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2200	2164	Geron Steel-Order-79376- Contract 2025.exe	31
PID 2164 wrote to memory of 2724	2164	Geron Steel-Order-79376- Contract 2025.exe	32
PID 2164 wrote to memory of 2724	2164	Geron Steel-Order-79376- Contract 2025.exe	32
PID 2164 wrote to memory of 2724	2164	Geron Steel-Order-79376- Contract 2025.exe	32
PID 2724 wrote to memory of 1960	2724	cmd.exe	34
PID 2724 wrote to memory of 1960	2724	cmd.exe	34
PID 2724 wrote to memory of 1960	2724	cmd.exe	34
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 2224	2200	RegSvcs.exe	35
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1700	2200	RegSvcs.exe	36
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37
PID 2200 wrote to memory of 1868	2200	RegSvcs.exe	37

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Geron Steel-Order-79376- Contract 2025.exe
"C:\Users\Admin\AppData\Local\Temp\Geron Steel-Order-79376- Contract 2025.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:2972
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2200
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\fqyytujbcpwhujbhdgjrm"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2224
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\isequnuvqxomfpptuqwlprjj"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1700
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\snjjufnwefgzhdlxdbjmaeesrqj"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1868
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c schtasks /create /tn "Frame2Sec" /tr "C:\Users\Admin\AppData\Roaming\GByte2ByteI.exe " /sc minute /mo 10 /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Windows\system32\schtasks.exe
    schtasks /create /tn "Frame2Sec" /tr "C:\Users\Admin\AppData\Roaming\GByte2ByteI.exe " /sc minute /mo 10 /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1960

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/1700-59-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1700-62-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1700-60-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1868-65-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1868-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1868-64-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1868-66-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2164-19-0x000007FEF6020000-0x000007FEF6A0C000-memory.dmp

Filesize
9.9MB

Download
memory/2164-18-0x0000000000410000-0x000000000041A000-memory.dmp

Filesize
40KB

Download
memory/2164-45-0x000007FEF6020000-0x000007FEF6A0C000-memory.dmp

Filesize
9.9MB

Download
memory/2164-1-0x0000000001340000-0x0000000001364000-memory.dmp

Filesize
144KB

Download
memory/2164-0-0x000007FEF6023000-0x000007FEF6024000-memory.dmp

Filesize
4KB

Download
memory/2200-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2200-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-75-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2200-79-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2200-78-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2200-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2200-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2224-72-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2224-61-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2224-57-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2224-67-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2224-55-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2224-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download