remcos | 40c24c9db30fb9576c068e8ba344a31de97ed75448354c910f40a7ad38ab5850

General

Target

Urgente RFQ_AP65425652_032421,pdf.exe
Size

780KB
MD5

d52e2a012af5c07a04750f9afd837f6b
SHA1

fd110cd83cd65e3499ea75d41b259303fdb2200c
SHA256

40c24c9db30fb9576c068e8ba344a31de97ed75448354c910f40a7ad38ab5850
SHA512

cbebd2bcee2c9d21f3c82d2fa662a1ddd56a36e09df93ac1301fb785f384a5728686e29f62b459ff2fa14ee3681468776a1c202738050844ae024526492e71ab

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

goddywin.freedynamicdns.net:6712

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 1 IoCs

Processes:

Netplwiz.exe

pid process

3420 Netplwiz.exe
Loads dropped DLL 1 IoCs

Processes:

Netplwiz.exe

pid process

3420 Netplwiz.exe

pid	process
3420	Netplwiz.exe

pid	process
3420	Netplwiz.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Urgente RFQ_AP65425652_032421,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Qbcrqy = "C:\\Users\\Public\\Libraries\\yqrcbQ.url"	Urgente RFQ_AP65425652_032421,pdf.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Urgente RFQ_AP65425652_032421,pdf.exe

description	ioc	process
File opened (read-only)	\??\B:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\F:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\K:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\P:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\Q:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\T:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\W:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\A:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\G:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\J:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\L:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\M:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\N:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\O:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\R:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\V:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\X:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\Y:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\E:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\H:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\I:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\S:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\U:	Urgente RFQ_AP65425652_032421,pdf.exe
File opened (read-only)	\??\Z:	Urgente RFQ_AP65425652_032421,pdf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

4064 powershell.exe
4064 powershell.exe
4064 powershell.exe

pid	process
4064	powershell.exe
4064	powershell.exe
4064	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

powershell.exe

description	pid	process
Token: SeDebugPrivilege	4064	powershell.exe
Token: SeIncreaseQuotaPrivilege	4064	powershell.exe
Token: SeSecurityPrivilege	4064	powershell.exe
Token: SeTakeOwnershipPrivilege	4064	powershell.exe
Token: SeLoadDriverPrivilege	4064	powershell.exe
Token: SeSystemProfilePrivilege	4064	powershell.exe
Token: SeSystemtimePrivilege	4064	powershell.exe
Token: SeProfSingleProcessPrivilege	4064	powershell.exe
Token: SeIncBasePriorityPrivilege	4064	powershell.exe
Token: SeCreatePagefilePrivilege	4064	powershell.exe
Token: SeBackupPrivilege	4064	powershell.exe
Token: SeRestorePrivilege	4064	powershell.exe
Token: SeShutdownPrivilege	4064	powershell.exe
Token: SeDebugPrivilege	4064	powershell.exe
Token: SeSystemEnvironmentPrivilege	4064	powershell.exe
Token: SeRemoteShutdownPrivilege	4064	powershell.exe
Token: SeUndockPrivilege	4064	powershell.exe
Token: SeManageVolumePrivilege	4064	powershell.exe
Token: 33	4064	powershell.exe
Token: 34	4064	powershell.exe
Token: 35	4064	powershell.exe
Token: 36	4064	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

Urgente RFQ_AP65425652_032421,pdf.execmd.execmd.exeNetplwiz.execmd.exe

description	pid	process	target process
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 1656	2204	Urgente RFQ_AP65425652_032421,pdf.exe	secinit.exe
PID 2204 wrote to memory of 4016	2204	Urgente RFQ_AP65425652_032421,pdf.exe	cmd.exe
PID 2204 wrote to memory of 4016	2204	Urgente RFQ_AP65425652_032421,pdf.exe	cmd.exe
PID 2204 wrote to memory of 4016	2204	Urgente RFQ_AP65425652_032421,pdf.exe	cmd.exe
PID 4016 wrote to memory of 988	4016	cmd.exe	cmd.exe
PID 4016 wrote to memory of 988	4016	cmd.exe	cmd.exe
PID 4016 wrote to memory of 988	4016	cmd.exe	cmd.exe
PID 988 wrote to memory of 3420	988	cmd.exe	Netplwiz.exe
PID 988 wrote to memory of 3420	988	cmd.exe	Netplwiz.exe
PID 3420 wrote to memory of 2392	3420	Netplwiz.exe	cmd.exe
PID 3420 wrote to memory of 2392	3420	Netplwiz.exe	cmd.exe
PID 2392 wrote to memory of 4064	2392	cmd.exe	powershell.exe
PID 2392 wrote to memory of 4064	2392	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Urgente RFQ_AP65425652_032421,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Urgente RFQ_AP65425652_032421,pdf.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\SysWOW64\secinit.exe
C:\Windows\System32\secinit.exe
2⤵
PID:1656

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Public\stt.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:4016

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /K C:\Users\Public\PXOR.bat
3⤵
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows \System32\Netplwiz.exe
"C:\Windows \System32\Netplwiz.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3420

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Public\Cdex.bat
5⤵
- Suspicious use of WriteProcessMemory
PID:2392

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -WindowStyle Hidden -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4064

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Public\Cdex.bat
MD5
84de6cf0b720db43f85d95204a2c1902

SHA1
c87c4c1f3ad9f28968c46a89c4fff8bdb867b006

SHA256
bc4baad4a7983c54c1764b0aa57f12d536ce506253c82e06dd98e17bbb5f77ee

SHA512
5fd018b5f72797a64934f8f35d4510ef95c235442a807d476e7fd3c14eaa854c1a3092332edbdd1028f8954ab28acb5aab8720a74226cfcfab3cb3a7772a64b7

Download Submit
C:\Users\Public\NETUTILS.dll
MD5
39507d772c63ca496a25a14a8b5d14b2

SHA1
5b603f5c11eb9ab4313694315b4d4894ff4641d4

SHA256
36d1fa474cd8271f9b74b9481025614b6ff309f767f69d9f1ff3960c7205ad12

SHA512
0c740fd7b6d67d9938b0d8e1ea7d6c41910dd6d0b85b4ec8b6015ff8c0c73798dee01f01da0b5b0c07038663aca7945faca0e2b5afc1cb751aaba7567d332f5f

Download Submit
C:\Users\Public\Netplwiz.exe
MD5
f94b7fb6dac49844d03c7087b2d8b472

SHA1
0e84139fced0ee8ef929d0bd5f01559a7dcf1db0

SHA256
46e31f337ed0d9a6fe3f159abc91c9b9b6a6062982bbcd84a51784d7128e7ae4

SHA512
d63878f94f7699e4cc63c2cd885c29455e0c423d32dba750e4fc3aa74dbaca80a1a4b176719213b9fc6584de6a40cddff7864c7fb4cfba13dfcb437a36e41b80

Download Submit
C:\Users\Public\PXOR.bat
MD5
0d8aef656413642f55e0902cc5df5e6f

SHA1
73ec56d08bd9b3c45d55c97bd1c1286b77c8ff49

SHA256
670f94b92f45bc2f3f44a80c7f3021f874aa16fde38ed7d7f3ebed13ae09fa11

SHA512
efe690b1bcf06e16be469622b45c98b5dc1f1e06410cbf7e7dccb2975524c4d6bc7e23de9a129d50d73cd924f02e23f925555894f2c7da1064dcc57151f50876

Download Submit
C:\Users\Public\stt.bat
MD5
8a850253c31df9a7e1c00c80df2630d5

SHA1
e3da74081b027a3b591488b28da22742bcfe8495

SHA256
8fdeba3ec903bde700342083d16f72452366aa0b1b30d0e58dee0af74cebfa35

SHA512
30510bdc34680a0865a0811d9be29dec91c74717feccd58c9b4d88e77be9e5d13a539806a1b2901aff595b2fe2cc45926b69ed42e899d2dd2913c78a732e84d1

Download Submit
C:\Windows \System32\Netplwiz.exe
MD5
f94b7fb6dac49844d03c7087b2d8b472

SHA1
0e84139fced0ee8ef929d0bd5f01559a7dcf1db0

SHA256
46e31f337ed0d9a6fe3f159abc91c9b9b6a6062982bbcd84a51784d7128e7ae4

SHA512
d63878f94f7699e4cc63c2cd885c29455e0c423d32dba750e4fc3aa74dbaca80a1a4b176719213b9fc6584de6a40cddff7864c7fb4cfba13dfcb437a36e41b80

Download Submit
C:\Windows \System32\netutils.dll
MD5
39507d772c63ca496a25a14a8b5d14b2

SHA1
5b603f5c11eb9ab4313694315b4d4894ff4641d4

SHA256
36d1fa474cd8271f9b74b9481025614b6ff309f767f69d9f1ff3960c7205ad12

SHA512
0c740fd7b6d67d9938b0d8e1ea7d6c41910dd6d0b85b4ec8b6015ff8c0c73798dee01f01da0b5b0c07038663aca7945faca0e2b5afc1cb751aaba7567d332f5f

Download Submit
\Windows \System32\NETUTILS.dll
MD5
39507d772c63ca496a25a14a8b5d14b2

SHA1
5b603f5c11eb9ab4313694315b4d4894ff4641d4

SHA256
36d1fa474cd8271f9b74b9481025614b6ff309f767f69d9f1ff3960c7205ad12

SHA512
0c740fd7b6d67d9938b0d8e1ea7d6c41910dd6d0b85b4ec8b6015ff8c0c73798dee01f01da0b5b0c07038663aca7945faca0e2b5afc1cb751aaba7567d332f5f

Download Submit
memory/988-118-0x0000000000000000-mapping.dmp

Download
memory/1656-129-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

Filesize
4KB

Download
memory/1656-134-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1656-133-0x0000000010540000-0x0000000010564000-memory.dmp

Filesize
144KB

Download
memory/1656-132-0x0000000001050000-0x0000000001051000-memory.dmp

Filesize
4KB

Download
memory/1656-115-0x0000000000000000-mapping.dmp

Download
memory/1656-130-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/2204-114-0x00000000020C0000-0x00000000020C1000-memory.dmp

Filesize
4KB

Download
memory/2392-126-0x0000000000000000-mapping.dmp

Download
memory/3420-122-0x0000000000000000-mapping.dmp

Download
memory/4016-116-0x0000000000000000-mapping.dmp

Download
memory/4064-128-0x0000000000000000-mapping.dmp

Download
memory/4064-139-0x00000224EE2E0000-0x00000224EE2E1000-memory.dmp

Filesize
4KB

Download
memory/4064-142-0x00000224EEB50000-0x00000224EEB51000-memory.dmp

Filesize
4KB

Download
memory/4064-166-0x00000224EC853000-0x00000224EC855000-memory.dmp

Filesize
8KB

Download
memory/4064-165-0x00000224EC850000-0x00000224EC852000-memory.dmp

Filesize
8KB

Download
memory/4064-167-0x00000224EC856000-0x00000224EC858000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads