remcos | 006c0bd65cc425c603245329985cd9cb8cc5cfc5e5c9e3a0ceb57821a9cf6687

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 02:01

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General

Target

AS SSD Benchmark/AS SSD Benchmark.exe
Size

3.0MB
MD5

21a40379bddf7cb18e1257f6824f3ab5
SHA1

72e1a8ae2edf6ef7263f7a6f8fc19c408b5ad375
SHA256

a39bc3ae11d38dc3d03e890c4d700c94f20b8997bfa0aa6775d2a5d0efa43240
SHA512

0e2215449a249bbaadf65569698e044a6caa3e08ac9cb1186ccb063d3b1d0c1a0920eff275186b37e8c3800a7badec3bf371cea45dc2eae6561469042f77aaf5
SSDEEP

49152:ZEA9P+bz2cHPcUb6HSb4SOEMkBeH7nQckO6bAGx7jXTVd3338O:t92bz2Eb6pd7B6bAGx7n3335

Score

10^/10

remcos new discovery rat upx

Malware Config

Extracted

Family

remcos

Botnet

New

95.217.148.142:9001

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
SSS1ooosSAweewwe-E84JZY
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	AS SSD Benchmark.exe

Executes dropped EXE 3 IoCs

pid	Process
3240	AS SSD Benchmark.exe
4168	DeAct.exe
4512	DeAct.exe

Loads dropped DLL 19 IoCs

pid	Process
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4168	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4512 set thread context of 4608	4512	DeAct.exe	90

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000a000000023b8e-37.dat	upx
behavioral2/memory/4168-84-0x00007FF724230000-0x00007FF7242AD000-memory.dmp	upx
behavioral2/memory/4512-77-0x00007FF7BE490000-0x00007FF7BE50D000-memory.dmp	upx
behavioral2/memory/4168-39-0x00007FF724230000-0x00007FF7242AD000-memory.dmp	upx
behavioral2/memory/4512-104-0x00007FF7BE490000-0x00007FF7BE50D000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AS SSD Benchmark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AS SSD Benchmark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1868	AS SSD Benchmark.exe
1868	AS SSD Benchmark.exe
4168	DeAct.exe
4512	DeAct.exe
4512	DeAct.exe
4608	cmd.exe
4608	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4512	DeAct.exe
4608	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3240	AS SSD Benchmark.exe
Token: SeIncBasePriorityPrivilege	3240	AS SSD Benchmark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1868	AS SSD Benchmark.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1868	2032	AS SSD Benchmark.exe	84
PID 2032 wrote to memory of 1868	2032	AS SSD Benchmark.exe	84
PID 2032 wrote to memory of 1868	2032	AS SSD Benchmark.exe	84
PID 1868 wrote to memory of 3240	1868	AS SSD Benchmark.exe	87
PID 1868 wrote to memory of 3240	1868	AS SSD Benchmark.exe	87
PID 1868 wrote to memory of 4168	1868	AS SSD Benchmark.exe	88
PID 1868 wrote to memory of 4168	1868	AS SSD Benchmark.exe	88
PID 4168 wrote to memory of 4512	4168	DeAct.exe	89
PID 4168 wrote to memory of 4512	4168	DeAct.exe	89
PID 4512 wrote to memory of 4608	4512	DeAct.exe	90
PID 4512 wrote to memory of 4608	4512	DeAct.exe	90
PID 4512 wrote to memory of 4608	4512	DeAct.exe	90
PID 4512 wrote to memory of 4608	4512	DeAct.exe	90
PID 4608 wrote to memory of 4176	4608	cmd.exe	104
PID 4608 wrote to memory of 4176	4608	cmd.exe	104
PID 4608 wrote to memory of 4176	4608	cmd.exe	104
PID 4608 wrote to memory of 4176	4608	cmd.exe	104
PID 4608 wrote to memory of 4176	4608	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\AS SSD Benchmark\AS SSD Benchmark.exe
"C:\Users\Admin\AppData\Local\Temp\AS SSD Benchmark\AS SSD Benchmark.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Users\Admin\AppData\Local\Temp\AS SSD Benchmark\AS SSD Benchmark.exe
  "C:\Users\Admin\AppData\Local\Temp\AS SSD Benchmark\AS SSD Benchmark.exe" /VERYSILENT
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Users\Admin\AppData\Roaming\AS SSD Benchmark\AS SSD Benchmark.exe
    "C:\Users\Admin\AppData\Roaming\AS SSD Benchmark\AS SSD Benchmark.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:3240
- - C:\Users\Admin\AppData\Roaming\DeAct.exe
    "C:\Users\Admin\AppData\Roaming\DeAct.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4168
  - - C:\Users\Admin\AppData\Roaming\Ultrajava\DeAct.exe
      C:\Users\Admin\AppData\Roaming\Ultrajava\DeAct.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:4512
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\SysWOW64\cmd.exe
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:4608
      - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\AS-SSD-TEST42\test24.bin

Filesize
16.0MB

MD5
b7ee29145782bbbfd758d68a90c06129

SHA1
9fe76f4cafc83457a2dc48eeeeb465526af71cdb

SHA256
112ec27d1d92c7e8730eb21ff9f0ee50d238972d6f35c43c87da628e5c796dc8

SHA512
42ed1ba93ef6783824b3538bf52adfa95934c7165e301e4a9e97f13673e9c7316335e7382bad548e2b82f8dcb1271fc32159e58ac684d839741ccff4d2f8a575

Download Submit
C:\Users\Admin\AppData\Local\Temp\14ab690f

Filesize
1.2MB

MD5
0ddd8133f865b5c7256fe37db73ac6b1

SHA1
f7787302e318c63dbcac6328adf387ebef782da1

SHA256
189c12afffcb4041366eb8391eb46c39b88153012635694a9af8a94b4d2bd242

SHA512
173050ff147624b0b5cd4aa4e3a899c22de1af2f8c696fb4f3f1c9471a399967ba015d3dfe7bc549e86332efafa0a6acdb2ca1b75ffe3740411468f9d563178e

Download Submit
C:\Users\Admin\AppData\Roaming\AS SSD Benchmark\AS SSD Benchmark.exe

Filesize
440KB

MD5
1da872a685a597b4d1f18a28abd28a64

SHA1
01ab8a1c70245e7a10144f362f18c446dc5e3419

SHA256
4e7caced7dc31493fb6b5f4917da163c6e9e61f0b16906a6e70b2a242fdcea8d

SHA512
127632dfc98a02977f9dbd52ca9689d75b6aebc2dc881579f1b6605d9a02373fbec7e25c2bda3c0c93e855dafaf74259485de04935eaa522fef826cc87701eab

Download Submit
C:\Users\Admin\AppData\Roaming\DeAct.exe

Filesize
304KB

MD5
411cd1175b5e21b6a3c6a72c34e8773c

SHA1
faabd22ddca0062dd3d7bc534e49078ee5d84be8

SHA256
116b75d94dacf676931ff8623a0b34f3ea75b52d67b0494fefd1b8dce6bc121a

SHA512
6414d174a17edf813bb7f739b9d625c4489dd4a45c56932fad7f222a2b8ea646fd2316cdba4e421225cbdf4aeb245329aa5bb3034e2b54e3859dcd89c7d1dd90

Download Submit
C:\Users\Admin\AppData\Roaming\Qt5Gui.dll

Filesize
6.2MB

MD5
34893cb3d9a2250f0edecd68aedb72c7

SHA1
37161412df2c1313a54749fe6f33e4dbf41d128a

SHA256
ca8334b2e63bc01f0749afeb9e87943c29882131efe58608ea25732961b2df34

SHA512
484e32832d69ec1799bd1bcc694418801c443c732ed59ecd76b3f67abf0b1c97d64ae123728dfa99013df846ba45be310502ef6f8da42155da2e89f2a1e8cb2c

Download Submit
C:\Users\Admin\AppData\Roaming\Qt5Widgets.dll

Filesize
5.3MB

MD5
c502bb8a4a7dc3724ab09292cd3c70d6

SHA1
ff44fddeec2d335ec0eaa861714b561f899675fd

SHA256
4266918226c680789d49cf2407a7fec012b0ed872adafb84c7719e645f9b2e6d

SHA512
73bef89503ce032fba278876b7dab9eac275632df7a72c77093d433c932272da997e8fbeb431a09d84baac7b2ab2e55222ff687893311949a5603e738bfa6617

Download Submit
C:\Users\Admin\AppData\Roaming\Ultrajava\Qt5Core.dll

Filesize
5.8MB

MD5
2be4a1cf7511bbb244fe323af4f117d2

SHA1
a7e79fae4522bad1c05c865c07acfa91028598a8

SHA256
7d6375d15e38ce9b3814089215d3969ce5430f83d01bd6519e2cbd1eb8d48b40

SHA512
7fb194433d15a6577e90d33dbeb2a64942585c82b46f120eec0f4e93b09f8895e37a1dd4c09a4273127b0f7f9985ab69b1fba524fa9068e19d9952888a2aaf5f

Download Submit
C:\Users\Admin\AppData\Roaming\Ultrajava\Qt5Network.dll

Filesize
1.3MB

MD5
fe5ed4c5da03077f98c3efa91ecefd81

SHA1
e23e839ec0602662788f761ebe7dd4b39c018a7f

SHA256
d992aaeb21cb567113126c2912cf75e892c8e3ead5d50147a11abe704b9e2e2b

SHA512
22514732a0edf8fc2b8770139599132429080b86d2844143d21bb834cbddaaa077d763969960e39e2050a69493c1aae191600e5df6107bde90fae589a054f071

Download Submit
C:\Users\Admin\AppData\Roaming\Ultrajava\Qt5PrintSupport.dll

Filesize
316KB

MD5
d0634933db2745397a603d5976bee8e7

SHA1
ddec98433bcfec1d9e38557d803bc73e1ff883b6

SHA256
7d91d3d341dbba568e2d19382e9d58a42a0d78064c3ad7adfe3c7bb14742c2b1

SHA512
9271370cd22115f68bd62572640525e086a05d75f5bc768f06e20b90b48a182f29a658a07099c7bc1e99bf0ffcf1229709524e2af6745d6fed7b41c1addd09f1

Download Submit
C:\Users\Admin\AppData\Roaming\Ultrajava\msvcp140.dll

Filesize
557KB

MD5
7db24201efea565d930b7ec3306f4308

SHA1
880c8034b1655597d0eebe056719a6f79b60e03c

SHA256
72fe4598f0b75d31ce2dc621e8ef161338c6450bb017cd06895745690603729e

SHA512
bac5729a3eb53e9bc7b680671d028cabef5ea102dfaa48a7c453b67f8ecb358db9f8fb16b3b1d9ea5a2dff34f459f6ac87f3a563c736d81d31048766198ff11e

Download Submit
C:\Users\Admin\AppData\Roaming\Ultrajava\vcruntime140.dll

Filesize
96KB

MD5
f12681a472b9dd04a812e16096514974

SHA1
6fd102eb3e0b0e6eef08118d71f28702d1a9067c

SHA256
d66c3b47091ceb3f8d3cc165a43d285ae919211a0c0fcb74491ee574d8d464f8

SHA512
7d3accbf84de73fb0c5c0de812a9ed600d39cd7ed0f99527ca86a57ce63f48765a370e913e3a46ffc2ccd48ee07d823dafdd157710eef9e7cc1eb7505dc323a2

Download Submit
C:\Users\Admin\AppData\Roaming\VCRUNTIME140_1.dll

Filesize
37KB

MD5
75e78e4bf561031d39f86143753400ff

SHA1
324c2a99e39f8992459495182677e91656a05206

SHA256
1758085a61527b427c4380f0c976d29a8bee889f2ac480c356a3f166433bf70e

SHA512
ce4daf46bce44a89d21308c63e2de8b757a23be2630360209c4a25eb13f1f66a04fbb0a124761a33bbf34496f2f2a02b8df159b4b62f1b6241e1dbfb0e5d9756

Download Submit
C:\Users\Admin\AppData\Roaming\mpidcu

Filesize
58KB

MD5
7bd89ff94b0a9abd5e989bece470730b

SHA1
531b309cdbec7ad61ba9ffca6f688012fdb8acc1

SHA256
90e70abbdd35d7fd3818770eca3030e477526b483128caf1eedbe1ba147f0e82

SHA512
ea930b15d9f6f321e4919db40aca5e2ae92cdc09d9b07d8c7f3170e825d32abe2fa766df1014f4ebbe54c92de27507fef730062ea7defaf9704bf4f2ac84117f

Download Submit
C:\Users\Admin\AppData\Roaming\uarrwmx

Filesize
947KB

MD5
2c7353da4574e3bb2d66965717d45001

SHA1
5fc5523ee0b685e602707b4f5f98f657454743f5

SHA256
7652be5fde7c4dec0b4afa5eed98c3f1dd0e268376694bf37299e7e5f9ce290c

SHA512
4239d3e02dbfbfd7b60f7bed2d11780c6c7912e4ea1a653a56402c2584371a1517804e7f85afaea32043c904fc47fe60ccbb11cf6887cb30fd8518aef01ff480

Download Submit
memory/1868-61-0x0000000000400000-0x000000000070A000-memory.dmp

Filesize
3.0MB

Download
memory/1868-3-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/2032-0-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/2032-4-0x0000000000400000-0x000000000070A000-memory.dmp

Filesize
3.0MB

Download
memory/3240-54-0x000001CAD9140000-0x000001CAD91B4000-memory.dmp

Filesize
464KB

Download
memory/4168-39-0x00007FF724230000-0x00007FF7242AD000-memory.dmp

Filesize
500KB

Download
memory/4168-84-0x00007FF724230000-0x00007FF7242AD000-memory.dmp

Filesize
500KB

Download
memory/4168-60-0x00007FFD66C10000-0x00007FFD66D82000-memory.dmp

Filesize
1.4MB

Download
memory/4168-57-0x00007FFD69E30000-0x00007FFD6A37E000-memory.dmp

Filesize
5.3MB

Download
memory/4176-128-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-134-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-265-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-227-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-202-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-201-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-127-0x00007FFD8B850000-0x00007FFD8BA45000-memory.dmp

Filesize
2.0MB

Download
memory/4176-135-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-131-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4176-133-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4512-100-0x00007FFD6AE30000-0x00007FFD6AFA2000-memory.dmp

Filesize
1.4MB

Download
memory/4512-95-0x00007FFD640B0000-0x00007FFD645FE000-memory.dmp

Filesize
5.3MB

Download
memory/4512-101-0x00007FFD6AE30000-0x00007FFD6AFA2000-memory.dmp

Filesize
1.4MB

Download
memory/4512-77-0x00007FF7BE490000-0x00007FF7BE50D000-memory.dmp

Filesize
500KB

Download
memory/4512-104-0x00007FF7BE490000-0x00007FF7BE50D000-memory.dmp

Filesize
500KB

Download
memory/4608-125-0x00000000757D0000-0x000000007594B000-memory.dmp

Filesize
1.5MB

Download
memory/4608-111-0x00007FFD8B850000-0x00007FFD8BA45000-memory.dmp

Filesize
2.0MB

Download