remcos | 689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
19-01-2024 20:56

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General

Target

689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
Size

856KB
MD5

72f2460abc3ae41fff469e110f3eaff3
SHA1

066ba1993f24e959b03edef4940d1b5ee9f5e18a
SHA256

689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf
SHA512

7627f7b0cfc2ca14e788b840601edc5460b36c8e386d39b2eda2283600e192a9c83b1f5fec93ef7eff0a9e54d80ab523780149fae65116a9af77753e8b01fcc8
SSDEEP

12288:7c8K/isRopeArTI4C8ilPYO0bJm1hEpA4kpNOxJNWBfTgtfBjLkvGpMeUPDpVU13:vK/LRopDTI4VOcHxJobgVRJww6k

Score

10^/10

remcos zgrat remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

jburg.net:3363

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
remcos
mouse_option
false
mutex
Rmc-Y4B0AA
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/2816-2-0x0000000004950000-0x0000000004A28000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-3-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-4-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-16-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-22-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-30-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-32-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-28-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-34-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-26-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-42-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-50-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-58-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-66-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-64-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-62-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-60-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-56-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-54-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-52-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-48-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-46-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-44-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-40-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-38-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-36-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-24-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-20-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-18-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-14-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-12-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-10-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-8-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1
behavioral1/memory/2816-6-0x0000000004950000-0x0000000004A22000-memory.dmp	family_zgrat_v1

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Pymeprhzzxj = "C:\\Users\\Admin\\AppData\\Roaming\\Pymeprhzzxj.exe"	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
2952	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
Token: SeDebugPrivilege	2952	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1228	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2952	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	29
PID 2816 wrote to memory of 2952	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	29
PID 2816 wrote to memory of 2952	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	29
PID 2816 wrote to memory of 2952	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	29
PID 2816 wrote to memory of 1748	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	31
PID 2816 wrote to memory of 1748	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	31
PID 2816 wrote to memory of 1748	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	31
PID 2816 wrote to memory of 1748	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	31
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30
PID 2816 wrote to memory of 1228	2816	689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe	30

C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
"C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABMAG8AYwBhAGwAXABUAGUAbQBwAFwANgA4ADkAZQBmADEAZAAyADkAYwAyADYAMwBmADcAOABjADkANgAyADYAZQAwADAANQAwADAAOQA4ADMAZQAyADUAOAA5AGQAMgA4ADAANgA4AGEANwAyAGYAYQBkAGIAYQA5AGEANABiADAANABiADcAZQBhAGYAYgBjAGEAZgAuAGUAeABlADsAIABBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAHIAbwBjAGUAcwBzACAANgA4ADkAZQBmADEAZAAyADkAYwAyADYAMwBmADcAOABjADkANgAyADYAZQAwADAANQAwADAAOQA4ADMAZQAyADUAOAA5AGQAMgA4ADAANgA4AGEANwAyAGYAYQBkAGIAYQA5AGEANABiADAANABiADcAZQBhAGYAYgBjAGEAZgAuAGUAeABlADsAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEMAOgBcAFUAcwBlAHIAcwBcAEEAZABtAGkAbgBcAEEAcABwAEQAYQB0AGEAXABSAG8AYQBtAGkAbgBnAFwAUAB5AG0AZQBwAHIAaAB6AHoAeABqAC4AZQB4AGUAOwAgAEEAZABkAC0ATQBwAFAAcgBlAGYAZQByAGUAbgBjAGUAIAAtAEUAeABjAGwAdQBzAGkAbwBuAFAAcgBvAGMAZQBzAHMAIABQAHkAbQBlAHAAcgBoAHoAegB4AGoALgBlAHgAZQA=
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2952
- C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
  C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1228
- C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
  C:\Users\Admin\AppData\Local\Temp\689ef1d29c263f78c9626e00500983e2589d28068a72fadba9a4b04b7eafbcaf.exe
  2⤵
  PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
d716c2fa5e70e68eadc2acafaf193b88

SHA1
9d1d6fcdc058c5540921ce64fadfca65ab549921

SHA256
2f56978274511b7d047b9bd07cb2f887d24cc324f20506e022d5a310f4e99e7e

SHA512
739c24441515aa0b7b91ea443c8a4d6c38dd0dcc73a8fb78ad203edac21436a99b2d9d0d5c6db65ad2262be6d92a069ed0328415f160524fdb8207a9f9eb3acc

Download Submit
memory/1228-962-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1228-972-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-0-0x0000000000200000-0x00000000002DC000-memory.dmp

Filesize
880KB

Download
memory/2816-1-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-2-0x0000000004950000-0x0000000004A28000-memory.dmp

Filesize
864KB

Download
memory/2816-3-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-4-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-16-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-22-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-30-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-32-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-28-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-34-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-26-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-42-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-50-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-58-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-66-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-64-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-62-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-60-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-56-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-54-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-52-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-48-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-46-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-44-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-40-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-38-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-36-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-24-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-20-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-18-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-14-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-12-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-10-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-8-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-6-0x0000000004950000-0x0000000004A22000-memory.dmp

Filesize
840KB

Download
memory/2816-936-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2816-935-0x0000000004910000-0x0000000004950000-memory.dmp

Filesize
256KB

Download
memory/2816-938-0x0000000001F70000-0x0000000001FBC000-memory.dmp

Filesize
304KB

Download
memory/2816-937-0x00000000020B0000-0x000000000211E000-memory.dmp

Filesize
440KB

Download
memory/2816-954-0x0000000074BE0000-0x00000000752CE000-memory.dmp

Filesize
6.9MB

Download
memory/2952-964-0x0000000002A40000-0x0000000002A80000-memory.dmp

Filesize
256KB

Download
memory/2952-965-0x000000006FCF0000-0x000000007029B000-memory.dmp

Filesize
5.7MB

Download
memory/2952-963-0x0000000002A40000-0x0000000002A80000-memory.dmp

Filesize
256KB

Download
memory/2952-961-0x0000000002A40000-0x0000000002A80000-memory.dmp

Filesize
256KB

Download
memory/2952-960-0x000000006FCF0000-0x000000007029B000-memory.dmp

Filesize
5.7MB

Download
memory/2952-967-0x000000006FCF0000-0x000000007029B000-memory.dmp

Filesize
5.7MB

Download