remcos | 86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72

General

Target

86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
Size

1.8MB
MD5

034e15527b8a528f14d030544dd7a137
SHA1

9344252caff2af4bef435827c0bc88c1bd6aec56
SHA256

86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72
SHA512

27f46fa25be1ddc7fcc95941acb0b3548774f1d3bbfc567c47847ee3832e37bedef88beed65a857afbedeb94873886b689762b4959db1c3e568387a64516704c
SSDEEP

24576:sD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoW7:sp7E+QrFUBgq2n7

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

213.183.58.19:4000

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
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2064	sbietrcl.exe
1140	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe

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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2064 set thread context of 1140	2064	sbietrcl.exe	31

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 2 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	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
2064	sbietrcl.exe
2064	sbietrcl.exe
2064	sbietrcl.exe
2064	sbietrcl.exe
2064	sbietrcl.exe
2064	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
Token: SeDebugPrivilege	2064	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 2064	1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe	30
PID 1628 wrote to memory of 2064	1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe	30
PID 1628 wrote to memory of 2064	1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe	30
PID 1628 wrote to memory of 2064	1628	86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe	30
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31
PID 2064 wrote to memory of 1140	2064	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe
"C:\Users\Admin\AppData\Local\Temp\86cd0a58eaedcb942e0de56edabf72e747ab3f806fc31e3984e7d1657c069a72.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2064
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:1140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
71KB

MD5
83142242e97b8953c386f988aa694e4a

SHA1
833ed12fc15b356136dcdd27c61a50f59c5c7d50

SHA256
d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

SHA512
bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
3f90736c543f5fbd978c4d38fab9fed0

SHA1
696365e8f6357a8373c3e7b1518ec4f5857ad3b8

SHA256
fb39ab3064c57d92d1a4a8f215524bce7bd58800f8f44efbf1dbfdabbd8c8d1b

SHA512
0b5eac3947d3efbb64fbe7fd1c14e6a495613ed67a62651a2680a02303c91fdce16b31e1ab907229677da139312045bb4a451f28f6a7e564ad026bfe228f4659

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
312a00839a3dbb76f11d7ed917853e88

SHA1
e6e06bb34cce51035ec8747d08f967e987f6d683

SHA256
ff4b85861b657799937ab10ba4ba797b43076ad087d4802d8937cc28f71520a9

SHA512
ba701136eb056f51d8951f01daa05b4c63a17ce4eca333eb6f0664f3ccaaf186e1f813e08e91e80a87ae67bf0b95326dd088082b3ddf18b2caef27f326e89ab6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab94E2.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar94F4.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar9887.tmp

Filesize
183KB

MD5
109cab5505f5e065b63d01361467a83b

SHA1
4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

SHA256
ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

SHA512
753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.8MB

MD5
f58c4269fa9803180e0c84f36a994725

SHA1
21dde860b4371dfc3f5ecfd16baf79c960f63de8

SHA256
0c74cbf03a293b1619d6e8ce23494bc3ed6acacbe376822ff69ab80b53fc0bdc

SHA512
1a21c57fd6a9a61b196ad80d6dae06e095b4e1b0c9905032ec991fb847e70fc82d9cc7bcab15892b264ab7017655461a557338e4de4b4edd5f1908cd4ac8b3ee

Download Submit
memory/1140-212-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1140-216-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1140-218-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1140-221-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1140-222-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1140-224-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1140-214-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/1628-192-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-1-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-199-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-0-0x0000000074081000-0x0000000074082000-memory.dmp

Filesize
4KB

Download
memory/1628-2-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-191-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-179-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1628-178-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2064-200-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2064-227-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads