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
1198s
max time network
1202s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	pid	process	target process
PID 3312 set thread context of 1860	3312	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

3236 schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

pid	process
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
1964	powershell.exe
4128	powershell.exe
3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
4128	powershell.exe
1964	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
Token: SeDebugPrivilege	4128	powershell.exe
Token: SeDebugPrivilege	1964	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

pid process

1860 c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

description	pid	process	target process
PID 3312 wrote to memory of 4128	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 4128	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 4128	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 1964	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 1964	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 1964	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	powershell.exe
PID 3312 wrote to memory of 3236	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3312 wrote to memory of 3236	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3312 wrote to memory of 3236	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	schtasks.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
PID 3312 wrote to memory of 1860	3312	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe	c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe

C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
"C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3312

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:4128

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:1964

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\foIcbEsQbkbkPw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA18F.tmp"
2⤵
- Creates scheduled task(s)
PID:3236

C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe
"C:\Users\Admin\AppData\Local\Temp\c3f09a0d0dacc5d6ab41cc028c18523cba4e1667f9688a21c4cafac980a19232.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1860

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

Query Registry

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

MD5
5b224affab357f3432b36e12c8f6bd36

SHA1
8d46e3464c92c44141508345d5ce823036f7a168

SHA256
79fa09695deb1803c06dde930c54517f602d63500e0082899a530f31d69dda88

SHA512
56d14d42461123a3363eab22131d83bab2b09caea1e40de5071fb0ddad8989abe17a0f8a33187ead734de2af0d60e688b0eb12ccb3b300ee171724fbfc322520

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vhwvg0v0.y0f.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA18F.tmp
Filesize
1KB

MD5
1569dc9548f7cceeb5097da291b521c6

SHA1
2db364481970f771c05e74a3237b4c53addc4c8b

SHA256
d15551836a8c21bc45e7a2ca7b2498f463aebd450aaa74d0bee43897e2545f93

SHA512
357a3cd8541a9342e5151f55a176c605b90534e93d71630019cf2f7069e727357184315a2b2d7fe2ff5a7051df02d06dab409b3f4a9be5b7ac90b89461320f2a

Download Submit
memory/1860-102-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1860-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1860-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1860-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1860-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1964-86-0x0000000007EB0000-0x000000000852A000-memory.dmp

Filesize
6.5MB

Download
memory/1964-92-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

Filesize
104KB

Download
memory/1964-83-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/1964-71-0x0000000007520000-0x000000000753E000-memory.dmp

Filesize
120KB

Download
memory/1964-81-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/1964-18-0x0000000005780000-0x0000000005DA8000-memory.dmp

Filesize
6.2MB

Download
memory/1964-87-0x00000000078E0000-0x00000000078EA000-memory.dmp

Filesize
40KB

Download
memory/1964-20-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1964-22-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/1964-21-0x0000000005140000-0x0000000005150000-memory.dmp

Filesize
64KB

Download
memory/1964-99-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/1964-88-0x0000000007AF0000-0x0000000007B86000-memory.dmp

Filesize
600KB

Download
memory/1964-93-0x0000000007B90000-0x0000000007B98000-memory.dmp

Filesize
32KB

Download
memory/1964-59-0x00000000074E0000-0x0000000007512000-memory.dmp

Filesize
200KB

Download
memory/1964-91-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

Filesize
80KB

Download
memory/1964-60-0x0000000071540000-0x000000007158C000-memory.dmp

Filesize
304KB

Download
memory/1964-90-0x0000000007AA0000-0x0000000007AAE000-memory.dmp

Filesize
56KB

Download
memory/1964-49-0x0000000006150000-0x00000000064A4000-memory.dmp

Filesize
3.3MB

Download
memory/3312-8-0x0000000005AB0000-0x0000000005ABC000-memory.dmp

Filesize
48KB

Download
memory/3312-5-0x0000000005690000-0x000000000569A000-memory.dmp

Filesize
40KB

Download
memory/3312-4-0x0000000005860000-0x0000000005870000-memory.dmp

Filesize
64KB

Download
memory/3312-6-0x0000000005910000-0x00000000059AC000-memory.dmp

Filesize
624KB

Download
memory/3312-7-0x0000000005850000-0x0000000005862000-memory.dmp

Filesize
72KB

Download
memory/3312-10-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3312-53-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3312-9-0x0000000006B70000-0x0000000006BCE000-memory.dmp

Filesize
376KB

Download
memory/3312-3-0x00000000056B0000-0x0000000005742000-memory.dmp

Filesize
584KB

Download
memory/3312-2-0x0000000005BC0000-0x0000000006164000-memory.dmp

Filesize
5.6MB

Download
memory/3312-1-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/3312-11-0x0000000005860000-0x0000000005870000-memory.dmp

Filesize
64KB

Download
memory/3312-0-0x0000000000BD0000-0x0000000000C64000-memory.dmp

Filesize
592KB

Download
memory/4128-56-0x0000000006060000-0x000000000607E000-memory.dmp

Filesize
120KB

Download
memory/4128-61-0x0000000071540000-0x000000007158C000-memory.dmp

Filesize
304KB

Download
memory/4128-84-0x00000000027D0000-0x00000000027E0000-memory.dmp

Filesize
64KB

Download
memory/4128-85-0x0000000007390000-0x00000000073AA000-memory.dmp

Filesize
104KB

Download
memory/4128-82-0x0000000007280000-0x0000000007323000-memory.dmp

Filesize
652KB

Download
memory/4128-58-0x000000007F990000-0x000000007F9A0000-memory.dmp

Filesize
64KB

Download
memory/4128-89-0x0000000007590000-0x00000000075A1000-memory.dmp

Filesize
68KB

Download
memory/4128-57-0x0000000006100000-0x000000000614C000-memory.dmp

Filesize
304KB

Download
memory/4128-45-0x0000000005B40000-0x0000000005BA6000-memory.dmp

Filesize
408KB

Download
memory/4128-26-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/4128-25-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/4128-100-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4128-23-0x00000000027D0000-0x00000000027E0000-memory.dmp

Filesize
64KB

Download
memory/4128-19-0x00000000027D0000-0x00000000027E0000-memory.dmp

Filesize
64KB

Download
memory/4128-17-0x0000000074D50000-0x0000000075500000-memory.dmp

Filesize
7.7MB

Download
memory/4128-16-0x0000000002740000-0x0000000002776000-memory.dmp

Filesize
216KB

Download