remcos | 93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2

General

Target

93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
Size

638KB
MD5

d0191f84ed4812596a8378931df27a9c
SHA1

5205f9232782c286e867aa71a4c95b6c1646c6bf
SHA256

93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2
SHA512

ebca5faf61df443e5e098a929a3f44c4aea80981d63989dc6935525c3e44374ea2a03806fcee13cc83eefa98a84c9cdd0fedf58dae21536d6a8616e90c1e93d9
SSDEEP

12288:mfHx3h+uSt5x5iKGhHARjTNnlfP8rkNPlbYqtgCE++L:IHx3zStduZARjhRykNPlUoZ+

Score

10^/10

remcos benchao discovery rat

Malware Config

Extracted

Family

remcos

Botnet

benchao

C2

tochisglobal.ddns.net:6426

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-9R4HLX
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

Loads dropped DLL 7 IoCs

pid	Process
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\historiebgernes\periscopal.ini	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1656	wab.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
1656	wab.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4312 set thread context of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Seqwl.lnk	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
File opened for modification	C:\Program Files (x86)\Seqwl.lnk	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\antarctic.Ord	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
File opened for modification	C:\Windows\Fonts\stricker.lav	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
File opened for modification	C:\Windows\Fonts\Fragtskibet\sammenhobende.tus	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
File opened for modification	C:\Windows\resources\0409\gdskning\anaesthesia.vit	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe

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	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wab.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1656	wab.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95
PID 4312 wrote to memory of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95
PID 4312 wrote to memory of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95
PID 4312 wrote to memory of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95
PID 4312 wrote to memory of 1656	4312	93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe	95

C:\Users\Admin\AppData\Local\Temp\93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe
"C:\Users\Admin\AppData\Local\Temp\93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Program Files (x86)\windows mail\wab.exe
  "C:\Users\Admin\AppData\Local\Temp\93f9f648e526fb97ed04a0b219aee1fe5fbc3e8d319ce2dc2cb1b35081eb78e2.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

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Downloads

C:\Program Files (x86)\Seqwl.lnk

Filesize
978B

MD5
480e14711d6a00e162783a5ae6b85a7e

SHA1
362d34c0829331d324b7898c8c35a74e84e8af57

SHA256
a3a48a245c7c0ada541d5e00677495096ae4152924dff280e7d80197cab26bbd

SHA512
7c7f05740d641c4a877cbccc4285bb35ade14c1486e6b7762c3bc71ce173ea0ed30e4246c18740c8580e1f2a43047a9e1bf484df31166472a5b4e0bd86d372c3

Download Submit
C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
485cf1766deac2f67673ea810124cb18

SHA1
3003fd6e21b7ef90f1b81e5226277a1a15d5b398

SHA256
8d7e2b95715aeb01780b15dcb1b2b44a3b22100d4e6ff31afaf685739902eb8a

SHA512
843170cd289c9f4b4ae37237ab03900f2cec3b8cd3e94d6d32098991857fe5c67cd59f9ab3fadb43cd561733915ce607655f7000ea47d8e3809fd3fe10ae41f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsv93A6.tmp\LangDLL.dll

Filesize
5KB

MD5
232f16c1cb21335fbce6f78ddaf2458c

SHA1
1c5981b852b3b640c98547074bda081c38859c3f

SHA256
507df75c959e1c9a89febb3f5d5963539895d9a602f4e6ca7898079919a83352

SHA512
cb8fb45ffe04e759816cb931223aafa42c15e58f1b35717f59a14c665aa94b48c393ff1a18ac480165ab090fed9226111ae2c3f4e9aead413a105c6f15515227

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsv93A6.tmp\System.dll

Filesize
12KB

MD5
d6f54d2cefdf58836805796f55bfc846

SHA1
b980addc1a755b968dd5799179d3b4f1c2de9d2d

SHA256
f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

SHA512
ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\edelgave.ini

Filesize
37B

MD5
3c65c480cb76aed4490bdad661de772f

SHA1
fc958ead2e23238bdbf62a685786f48fb82fb579

SHA256
362c08bc271b256001720882dea6b6ea8bb7ba7a330f59c86d2353266c59c932

SHA512
0629e4cb1fa3b58ea4f3773a54616c6f1d9336e295154d7a8d9bbb7bd9c5bcbc82babb369ea0f658b1dca4533fb5a377f750ef0bde137dd30949ad3264ad9d5e

Download Submit
memory/1656-924-0x0000000077C11000-0x0000000077D31000-memory.dmp

Filesize
1.1MB

Download
memory/1656-939-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-914-0x0000000077CB5000-0x0000000077CB6000-memory.dmp

Filesize
4KB

Download
memory/1656-915-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-916-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-920-0x0000000077C11000-0x0000000077D31000-memory.dmp

Filesize
1.1MB

Download
memory/1656-923-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-954-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-927-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-951-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-930-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-933-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-936-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-913-0x0000000077C98000-0x0000000077C99000-memory.dmp

Filesize
4KB

Download
memory/1656-942-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-945-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/1656-948-0x0000000000A70000-0x0000000001CC4000-memory.dmp

Filesize
18.3MB

Download
memory/4312-911-0x0000000077C11000-0x0000000077D31000-memory.dmp

Filesize
1.1MB

Download
memory/4312-912-0x0000000074305000-0x0000000074306000-memory.dmp

Filesize
4KB

Download

Analysis

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