remcos | c1f36f8ad9a6360ed406ff3e84dd9b9a765e6edea3d9beb7e5c303230001fd13

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17/09/2024, 11:52

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General

Target

orderspecification.pif.exe
Size

862KB
MD5

32fdfac1be3eeb287976d70b621ba718
SHA1

2dd9ced6021c1f1e8f772ead665e70ee4250c238
SHA256

c1f36f8ad9a6360ed406ff3e84dd9b9a765e6edea3d9beb7e5c303230001fd13
SHA512

a77441898821e5f84c860c05ea62357851330693d1566ff60ea47676efef0846e99192d1ba51d8a5569b2b93acf697eccb0ecf047ed17ab58a9453fd5af32cba
SSDEEP

24576:PYZIth8N9PnPo2SxApB3x8uYU66U25BL:Pvth8N5Po2rpH8uYUOA

Score

10^/10

remcos remotehost collection credential_access discovery execution rat stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.drechftankholding.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
dfgh
mouse_option
false
mutex
Rmc-8J6PG9
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 3 IoCs

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

resource	yara_rule
behavioral1/memory/1936-56-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2128-57-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1620-61-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1936-56-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2128-57-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2744	powershell.exe
380	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2000 set thread context of 3008	2000	orderspecification.pif.exe	37
PID 3008 set thread context of 2128	3008	vbc.exe	40
PID 3008 set thread context of 1936	3008	vbc.exe	41
PID 3008 set thread context of 1620	3008	vbc.exe	42

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 8 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	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	orderspecification.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.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
2796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2000	orderspecification.pif.exe
2000	orderspecification.pif.exe
2744	powershell.exe
380	powershell.exe
2128	vbc.exe
2128	vbc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3008	vbc.exe
3008	vbc.exe
3008	vbc.exe
3008	vbc.exe
3008	vbc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	orderspecification.pif.exe
Token: SeDebugPrivilege	2744	powershell.exe
Token: SeDebugPrivilege	380	powershell.exe
Token: SeDebugPrivilege	1620	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3008	vbc.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 380	2000	orderspecification.pif.exe	31
PID 2000 wrote to memory of 380	2000	orderspecification.pif.exe	31
PID 2000 wrote to memory of 380	2000	orderspecification.pif.exe	31
PID 2000 wrote to memory of 380	2000	orderspecification.pif.exe	31
PID 2000 wrote to memory of 2744	2000	orderspecification.pif.exe	33
PID 2000 wrote to memory of 2744	2000	orderspecification.pif.exe	33
PID 2000 wrote to memory of 2744	2000	orderspecification.pif.exe	33
PID 2000 wrote to memory of 2744	2000	orderspecification.pif.exe	33
PID 2000 wrote to memory of 2796	2000	orderspecification.pif.exe	34
PID 2000 wrote to memory of 2796	2000	orderspecification.pif.exe	34
PID 2000 wrote to memory of 2796	2000	orderspecification.pif.exe	34
PID 2000 wrote to memory of 2796	2000	orderspecification.pif.exe	34
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 2000 wrote to memory of 3008	2000	orderspecification.pif.exe	37
PID 3008 wrote to memory of 2784	3008	vbc.exe	38
PID 3008 wrote to memory of 2784	3008	vbc.exe	38
PID 3008 wrote to memory of 2784	3008	vbc.exe	38
PID 3008 wrote to memory of 2784	3008	vbc.exe	38
PID 3008 wrote to memory of 1976	3008	vbc.exe	39
PID 3008 wrote to memory of 1976	3008	vbc.exe	39
PID 3008 wrote to memory of 1976	3008	vbc.exe	39
PID 3008 wrote to memory of 1976	3008	vbc.exe	39
PID 3008 wrote to memory of 2128	3008	vbc.exe	40
PID 3008 wrote to memory of 2128	3008	vbc.exe	40
PID 3008 wrote to memory of 2128	3008	vbc.exe	40
PID 3008 wrote to memory of 2128	3008	vbc.exe	40
PID 3008 wrote to memory of 2128	3008	vbc.exe	40
PID 3008 wrote to memory of 1936	3008	vbc.exe	41
PID 3008 wrote to memory of 1936	3008	vbc.exe	41
PID 3008 wrote to memory of 1936	3008	vbc.exe	41
PID 3008 wrote to memory of 1936	3008	vbc.exe	41
PID 3008 wrote to memory of 1936	3008	vbc.exe	41
PID 3008 wrote to memory of 1620	3008	vbc.exe	42
PID 3008 wrote to memory of 1620	3008	vbc.exe	42
PID 3008 wrote to memory of 1620	3008	vbc.exe	42
PID 3008 wrote to memory of 1620	3008	vbc.exe	42
PID 3008 wrote to memory of 1620	3008	vbc.exe	42

C:\Users\Admin\AppData\Local\Temp\orderspecification.pif.exe
"C:\Users\Admin\AppData\Local\Temp\orderspecification.pif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\orderspecification.pif.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sOjQJdX.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sOjQJdX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7D0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2796
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\nkurvgarqlsqhdewjjfmbfdykxvlhvcv"
    3⤵
    PID:2784
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\nkurvgarqlsqhdewjjfmbfdykxvlhvcv"
    3⤵
    PID:1976
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\nkurvgarqlsqhdewjjfmbfdykxvlhvcv"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2128
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\xmzcw"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1936
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\agfuprwm"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1620

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Scripting

T1064

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Scripting

T1064

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Information Discovery

T1082

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:\ProgramData\dfgh\logs.dat

Filesize
144B

MD5
1e42254e37de4e142f47c814e787c68f

SHA1
3596c5dd0a324f79add9d360a2f2cd4191fd1425

SHA256
bf412cccc097766267493d39d997fad17b082a5422121aee04471ed1134f46fc

SHA512
ad8a793c1af0f02d11d9697751f8d91d359bf919fe05ecaa2f17284536a7e469507da8ea3b076b151a386838c823246014603082acef35fa8e9cb947f52512ea

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE7D0.tmp

Filesize
1KB

MD5
26ce64fd5d54176ee668fa7a2bae39a4

SHA1
7726bf2ac785c922c3f636cb10fc28b0d75fd6eb

SHA256
0888875867d7738fc5386036f39f28d1611f4257d7607a442d8f3c067416c1a6

SHA512
e3be4774d63820732e84e7eaa7995fbdb296bca9efc28f05017f942d0874ce9e3c83c8be53218bbf4232384e56b37295e3e580bdc71b9253eb0af4e0da5f9ef1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\KXYBMCXDJENBPWH2CUZN.temp

Filesize
7KB

MD5
ef27a44f4684e3cb48e7b4adea9068de

SHA1
9fd434a1d3b99d41ca9b513564420be470a30324

SHA256
19c7a4ab466d8fda88a6e416e33e122a2939a5879478915cf51088914d4acdec

SHA512
1f0a07f39af941aec3d0a68a85c164a73679730c2c2e658232160adeca43866525943ee08137e9147d0c983055d32a1f8f2dcdcca24a61f5c6b598fe81f635c2

Download Submit
memory/1620-59-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1620-60-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1620-61-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1936-53-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1936-55-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1936-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2000-42-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2000-3-0x0000000000220000-0x000000000022E000-memory.dmp

Filesize
56KB

Download
memory/2000-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2000-2-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2000-6-0x0000000005520000-0x00000000055E0000-memory.dmp

Filesize
768KB

Download
memory/2000-4-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2000-1-0x0000000000C00000-0x0000000000CDE000-memory.dmp

Filesize
888KB

Download
memory/2000-5-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-54-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2128-57-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2128-51-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3008-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/3008-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3008-72-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3008-71-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/3008-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download