remcos | c85e13a5030bcd0c8173ef7ff6939690fe9638fa25d3c89cbf1e1e95a89db997

Analysis

max time kernel
146s
max time network
148s
platform
windows10_x64
resource
win10v20201028
submitted
09/11/2020, 19:47

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General

Target
Halkbank_Ekstre_20200410_080918_330462.exe
Size 457KB
Sample201109-1yar6krf6a
SHA256 c85e13a5030bcd0c8173ef7ff6939690fe9638fa25d3c89cbf1e1e95a89db997
MD5 f676bf22aa34d361b8d0e5e132a8f8fe
SHA1 0e798075c1e2ec42d586875b2f0dfb3d0b714a03
SHA512 01846be802a3e3600d2cd4c8faf4591962426dc665e01168b18efb86275fbc328a6f019428869d2aa202a035c2cdb9614b39c93927c9ace6eff95898a885dffa
MD5 SHA1 SHA512

Score

10^/10

remcos rat upx

Malware Config

Extracted

Family

remcos

185.244.30.28:8780

Signatures

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

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1808-0-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral2/memory/1808-2-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral2/memory/1808-3-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2868 set thread context of 1808	2868	Halkbank_Ekstre_20200410_080918_330462.exe	75

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2868	Halkbank_Ekstre_20200410_080918_330462.exe
2868	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1808	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2868	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1808	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1808	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1808	Halkbank_Ekstre_20200410_080918_330462.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 1808	2868	Halkbank_Ekstre_20200410_080918_330462.exe	75
PID 2868 wrote to memory of 1808	2868	Halkbank_Ekstre_20200410_080918_330462.exe	75
PID 2868 wrote to memory of 1808	2868	Halkbank_Ekstre_20200410_080918_330462.exe	75

C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20200410_080918_330462.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1808

Network

MITRE ATT&CK Matrix

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Downloads

memory/1808-0-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/1808-2-0x0000000000400000-0x000000000041D000-memory.dmp

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memory/1808-3-0x0000000000400000-0x000000000041D000-memory.dmp

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