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
297s
max time network
204s
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 648 set thread context of 4564	648	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

3956 schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

pid	process
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
2312	powershell.exe
2488	powershell.exe
648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
2488	powershell.exe
2312	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
Token: SeDebugPrivilege	2312	powershell.exe
Token: SeDebugPrivilege	2488	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

pid process

4564 c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	pid	process	target process
PID 648 wrote to memory of 2312	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 2312	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 2312	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 2488	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 2488	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 2488	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 648 wrote to memory of 3956	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 648 wrote to memory of 3956	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 648 wrote to memory of 3956	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 648 wrote to memory of 4564	648	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:648

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:2312

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:2488

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\foIcbEsQbkbkPw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6685.tmp"
2⤵
- Creates scheduled task(s)
PID:3956

C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
"C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:4564

Network

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
ac4917a885cf6050b1a483e4bc4d2ea5

SHA1
b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

SHA256
e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

SHA512
092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

MD5
e111931d36eaa0bbf022a565b443e59c

SHA1
997424035403713a1f3db91ac062eddd393441ed

SHA256
76a5ac80d42a4337092ede543f20d0a2c01c099f0fc7442718614b4f59e5b3b2

SHA512
945c7196602d8fde66c7a229f06bd7e3883221450aa46d78b6576c686caa411c15427b5479781978d123fd5ed469d5137851e2963cc61eece9ec2ea30e913423

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_samlt0zx.t2r.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6685.tmp
Filesize
1KB

MD5
5dc90e0916c7460bc737367c55857b51

SHA1
da359b2d91ddc25c94575da1825b6bbe942c7c22

SHA256
d10af97b7fe4238d43ee2ca4e283806da1157ba6a79394401420c81fb59176de

SHA512
da2b7d7527c413894c4ef2894bddcc30155da89477303bd4b1b8d3ae578532c1d1929dd08459ab466833382cd8e32f9e0f7bf5cc361fc33190b9cc05826601a4

Download Submit
memory/648-4-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/648-5-0x0000000005A20000-0x0000000005A2A000-memory.dmp

Filesize
40KB

Download
memory/648-6-0x0000000005D10000-0x0000000005DAC000-memory.dmp

Filesize
624KB

Download
memory/648-7-0x0000000005C90000-0x0000000005CA2000-memory.dmp

Filesize
72KB

Download
memory/648-8-0x0000000005CC0000-0x0000000005CCC000-memory.dmp

Filesize
48KB

Download
memory/648-9-0x0000000006F20000-0x0000000006F7E000-memory.dmp

Filesize
376KB

Download
memory/648-10-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/648-11-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/648-3-0x0000000005A50000-0x0000000005AE2000-memory.dmp

Filesize
584KB

Download
memory/648-1-0x0000000000EB0000-0x0000000000F44000-memory.dmp

Filesize
592KB

Download
memory/648-2-0x0000000005F60000-0x0000000006506000-memory.dmp

Filesize
5.6MB

Download
memory/648-50-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/648-0-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/2312-17-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/2312-59-0x0000000073A60000-0x0000000073AAC000-memory.dmp

Filesize
304KB

Download
memory/2312-94-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/2312-16-0x0000000002BA0000-0x0000000002BD6000-memory.dmp

Filesize
216KB

Download
memory/2312-18-0x0000000002B90000-0x0000000002BA0000-memory.dmp

Filesize
64KB

Download
memory/2312-25-0x0000000005500000-0x0000000005522000-memory.dmp

Filesize
136KB

Download
memory/2312-33-0x0000000005CE0000-0x0000000005D46000-memory.dmp

Filesize
408KB

Download
memory/2312-87-0x0000000007A20000-0x0000000007A28000-memory.dmp

Filesize
32KB

Download
memory/2312-19-0x0000000005640000-0x0000000005C6A000-memory.dmp

Filesize
6.2MB

Download
memory/2312-44-0x0000000005FA0000-0x0000000006006000-memory.dmp

Filesize
408KB

Download
memory/2312-20-0x0000000002B90000-0x0000000002BA0000-memory.dmp

Filesize
64KB

Download
memory/2312-85-0x0000000007930000-0x0000000007945000-memory.dmp

Filesize
84KB

Download
memory/2312-52-0x0000000006010000-0x0000000006367000-memory.dmp

Filesize
3.3MB

Download
memory/2312-79-0x0000000007D30000-0x00000000083AA000-memory.dmp

Filesize
6.5MB

Download
memory/2312-68-0x0000000006990000-0x00000000069AE000-memory.dmp

Filesize
120KB

Download
memory/2312-56-0x000000007FC60000-0x000000007FC70000-memory.dmp

Filesize
64KB

Download
memory/2312-55-0x0000000002B90000-0x0000000002BA0000-memory.dmp

Filesize
64KB

Download
memory/2488-82-0x0000000007BC0000-0x0000000007C56000-memory.dmp

Filesize
600KB

Download
memory/2488-69-0x0000000073A60000-0x0000000073AAC000-memory.dmp

Filesize
304KB

Download
memory/2488-54-0x0000000006640000-0x000000000668C000-memory.dmp

Filesize
304KB

Download
memory/2488-84-0x0000000007B70000-0x0000000007B7E000-memory.dmp

Filesize
56KB

Download
memory/2488-83-0x0000000007B40000-0x0000000007B51000-memory.dmp

Filesize
68KB

Download
memory/2488-53-0x0000000006600000-0x000000000661E000-memory.dmp

Filesize
120KB

Download
memory/2488-78-0x00000000075F0000-0x0000000007694000-memory.dmp

Filesize
656KB

Download
memory/2488-24-0x00000000053D0000-0x00000000053E0000-memory.dmp

Filesize
64KB

Download
memory/2488-80-0x0000000007930000-0x000000000794A000-memory.dmp

Filesize
104KB

Download
memory/2488-81-0x00000000079B0000-0x00000000079BA000-memory.dmp

Filesize
40KB

Download
memory/2488-23-0x00000000053D0000-0x00000000053E0000-memory.dmp

Filesize
64KB

Download
memory/2488-57-0x000000007F540000-0x000000007F550000-memory.dmp

Filesize
64KB

Download
memory/2488-58-0x0000000006BD0000-0x0000000006C04000-memory.dmp

Filesize
208KB

Download
memory/2488-22-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/2488-86-0x0000000007C80000-0x0000000007C9A000-memory.dmp

Filesize
104KB

Download
memory/2488-93-0x0000000074FD0000-0x0000000075781000-memory.dmp

Filesize
7.7MB

Download
memory/4564-26-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-34-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/4564-96-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download