remcos | c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232 | Triage

Resubmissions

09-04-2024 14:12

240409-rh1kwace2w 10

09-04-2024 14:12

240409-rhzzcace2v 10

09-04-2024 14:12

240409-rhzctace2t 10

09-04-2024 14:12

240409-rhyraace2s 10

04-04-2024 02:29

240404-cyldkacg38 10

Analysis

max time kernel
1827s
max time network
1170s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
09-04-2024 14:12

Sharing

Report Analysis Logs

General

Target

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
Size

567KB
MD5

9a12cd3ad2a3a069cc5584ad9898ef31
SHA1

382be6fabd231519f6562d966b63e4193c2befb8
SHA256

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232
SHA512

f564be2951509bdf5a61b6e9c609b74b37530fbd06b7dd7e9180667eac18259f8ff06ce9d5bb042412375837883e14273ba341f77293af18d132216371dd1444
SSDEEP

12288:l82iNlw0VQblYG0iGSQSpGrDJZ5vdkN1dB6duNvt9X7BCtAZV7wdEAmD:m1XtQ5x0RSQZTNdk1P/Ad

Score

10^/10

remcos gg rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

gg

C2

62.102.148.185:9771

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
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
newstart
keylog_path
%AppData%
mouse_option
false
mutex
remcos_wgwfvnfssp
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

Suspicious use of SetThreadContext 1 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	pid	process	target process
PID 3136 set thread context of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2948 schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

pid	process
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
2984	powershell.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3340	powershell.exe
3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
2984	powershell.exe
3340	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	3340	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

pid process

1364 c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	pid	process	target process
PID 3136 wrote to memory of 3340	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 3340	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 3340	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 2984	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 2984	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 2984	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3136 wrote to memory of 2948	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3136 wrote to memory of 2948	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3136 wrote to memory of 2948	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3136 wrote to memory of 1364	3136	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
"C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3136

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\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3340

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\foIcbEsQbkbkPw.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2984

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\foIcbEsQbkbkPw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC9B4.tmp"
2⤵
- Creates scheduled task(s)
PID:2948

C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
"C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1364

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
d0c46cad6c0778401e21910bd6b56b70

SHA1
7be418951ea96326aca445b8dfe449b2bfa0dca6

SHA256
9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

SHA512
057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
18KB

MD5
9b39edf248575aadbebaa33e84a90fc9

SHA1
7f372ec67805fc27b8b10e9e4ef5f45fb1a1039e

SHA256
d518b87053fe2f0d2413d60d9373c57d787643838f51aa60ccf38252095096e0

SHA512
1d13ca9998027609c8a825ecc3fead2a8ac0a02a9a54785f57faff9fb57c600f2c35a60fb9ebb6e4145a003abca6ba6b42c7b8201780814cac290e87f86dced2

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dccjm3mt.zy1.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC9B4.tmp
Filesize
1KB

MD5
b90e339e6551a549218a86edd171892a

SHA1
71bc0d37e0476973e741c3f29a61ef733cc4d530

SHA256
ec5caf219826222489241ec4832a6f7345977eca5403275316680bf981b337e2

SHA512
30de598f54fe400cbc6f21313d6e30f3012ba7a720d19df59f3c5bbbe17cbbc154dce5f4a66206b36452c03241562aacfefac6269e1f51a8b43835122e1d6f98

Download Submit
memory/1364-97-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1364-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1364-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1364-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1364-25-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2984-71-0x00000000070F0000-0x0000000007194000-memory.dmp

Filesize
656KB

Download
memory/2984-82-0x0000000007260000-0x000000000726A000-memory.dmp

Filesize
40KB

Download
memory/2984-96-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/2984-85-0x0000000007420000-0x000000000742E000-memory.dmp

Filesize
56KB

Download
memory/2984-84-0x00000000073F0000-0x0000000007401000-memory.dmp

Filesize
68KB

Download
memory/2984-83-0x0000000007470000-0x0000000007506000-memory.dmp

Filesize
600KB

Download
memory/2984-80-0x00000000071E0000-0x00000000071FA000-memory.dmp

Filesize
104KB

Download
memory/2984-69-0x0000000006480000-0x000000000649E000-memory.dmp

Filesize
120KB

Download
memory/2984-23-0x0000000002650000-0x0000000002660000-memory.dmp

Filesize
64KB

Download
memory/2984-60-0x00000000712F0000-0x000000007133C000-memory.dmp

Filesize
304KB

Download
memory/2984-19-0x0000000002650000-0x0000000002660000-memory.dmp

Filesize
64KB

Download
memory/2984-24-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/2984-59-0x0000000006EB0000-0x0000000006EE4000-memory.dmp

Filesize
208KB

Download
memory/2984-27-0x0000000004FF0000-0x0000000005012000-memory.dmp

Filesize
136KB

Download
memory/2984-58-0x000000007F3B0000-0x000000007F3C0000-memory.dmp

Filesize
64KB

Download
memory/2984-57-0x0000000002650000-0x0000000002660000-memory.dmp

Filesize
64KB

Download
memory/2984-31-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/2984-55-0x0000000005F80000-0x0000000005FCC000-memory.dmp

Filesize
304KB

Download
memory/2984-48-0x00000000059C0000-0x0000000005D17000-memory.dmp

Filesize
3.3MB

Download
memory/2984-54-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

Filesize
120KB

Download
memory/3136-11-0x0000000004C40000-0x0000000004C50000-memory.dmp

Filesize
64KB

Download
memory/3136-4-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/3136-6-0x0000000004E60000-0x0000000004E6A000-memory.dmp

Filesize
40KB

Download
memory/3136-46-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/3136-7-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Filesize
624KB

Download
memory/3136-1-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/3136-10-0x00000000068A0000-0x00000000068FE000-memory.dmp

Filesize
376KB

Download
memory/3136-8-0x0000000004F00000-0x0000000004F12000-memory.dmp

Filesize
72KB

Download
memory/3136-9-0x0000000005890000-0x000000000589C000-memory.dmp

Filesize
48KB

Download
memory/3136-2-0x0000000005160000-0x0000000005706000-memory.dmp

Filesize
5.6MB

Download
memory/3136-3-0x0000000004C90000-0x0000000004D22000-memory.dmp

Filesize
584KB

Download
memory/3136-0-0x0000000000140000-0x00000000001D4000-memory.dmp

Filesize
592KB

Download
memory/3136-5-0x0000000004C40000-0x0000000004C50000-memory.dmp

Filesize
64KB

Download
memory/3340-20-0x0000000005770000-0x0000000005D9A000-memory.dmp

Filesize
6.2MB

Download
memory/3340-81-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/3340-18-0x0000000002D10000-0x0000000002D20000-memory.dmp

Filesize
64KB

Download
memory/3340-17-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/3340-16-0x0000000005100000-0x0000000005136000-memory.dmp

Filesize
216KB

Download
memory/3340-86-0x0000000007AF0000-0x0000000007B05000-memory.dmp

Filesize
84KB

Download
memory/3340-87-0x0000000007BF0000-0x0000000007C0A000-memory.dmp

Filesize
104KB

Download
memory/3340-89-0x0000000007C20000-0x0000000007C28000-memory.dmp

Filesize
32KB

Download
memory/3340-21-0x0000000002D10000-0x0000000002D20000-memory.dmp

Filesize
64KB

Download
memory/3340-70-0x00000000712F0000-0x000000007133C000-memory.dmp

Filesize
304KB

Download
memory/3340-95-0x0000000074FA0000-0x0000000075751000-memory.dmp

Filesize
7.7MB

Download
memory/3340-29-0x0000000005DA0000-0x0000000005E06000-memory.dmp

Filesize
408KB

Download
memory/3340-56-0x0000000002D10000-0x0000000002D20000-memory.dmp

Filesize
64KB

Download