138a3dd2730be8b076caf28f85d3fbd5a987f9587c8b629ca565ac8de1cc9637

Analysis

max time kernel
63s
max time network
10s
platform
windows7_x64
resource
win7v20210408
submitted
21/04/2021, 09:29

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General

Target

main_setup_x86x64.bin.exe
Size

1.8MB
MD5

51da3eb43302642233928bd69ca6e219
SHA1

7d7d696126bde5e8dbab7382d278e40d22cf47da
SHA256

138a3dd2730be8b076caf28f85d3fbd5a987f9587c8b629ca565ac8de1cc9637
SHA512

6956d4a9331ad8b6cf563427c36ddf4981f1cdebd30ec8cdbc6ec2845e0f4762ed2c4d8d3285b0bcd18d698569d2067f58e9fa1e22d77d4be97efd97d1898561

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1028	Fresche.exe.com
1644	Fresche.exe.com

Loads dropped DLL 1 IoCs

pid	Process
628	cmd.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Fresche.exe.com
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Fresche.exe.com

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1120	PING.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 1312	1652	main_setup_x86x64.bin.exe	26
PID 1652 wrote to memory of 1312	1652	main_setup_x86x64.bin.exe	26
PID 1652 wrote to memory of 1312	1652	main_setup_x86x64.bin.exe	26
PID 1652 wrote to memory of 1312	1652	main_setup_x86x64.bin.exe	26
PID 1652 wrote to memory of 1992	1652	main_setup_x86x64.bin.exe	28
PID 1652 wrote to memory of 1992	1652	main_setup_x86x64.bin.exe	28
PID 1652 wrote to memory of 1992	1652	main_setup_x86x64.bin.exe	28
PID 1652 wrote to memory of 1992	1652	main_setup_x86x64.bin.exe	28
PID 1992 wrote to memory of 628	1992	cmd.exe	30
PID 1992 wrote to memory of 628	1992	cmd.exe	30
PID 1992 wrote to memory of 628	1992	cmd.exe	30
PID 1992 wrote to memory of 628	1992	cmd.exe	30
PID 628 wrote to memory of 796	628	cmd.exe	34
PID 628 wrote to memory of 796	628	cmd.exe	34
PID 628 wrote to memory of 796	628	cmd.exe	34
PID 628 wrote to memory of 796	628	cmd.exe	34
PID 628 wrote to memory of 1028	628	cmd.exe	35
PID 628 wrote to memory of 1028	628	cmd.exe	35
PID 628 wrote to memory of 1028	628	cmd.exe	35
PID 628 wrote to memory of 1028	628	cmd.exe	35
PID 628 wrote to memory of 1120	628	cmd.exe	36
PID 628 wrote to memory of 1120	628	cmd.exe	36
PID 628 wrote to memory of 1120	628	cmd.exe	36
PID 628 wrote to memory of 1120	628	cmd.exe	36
PID 1028 wrote to memory of 1644	1028	Fresche.exe.com	37
PID 1028 wrote to memory of 1644	1028	Fresche.exe.com	37
PID 1028 wrote to memory of 1644	1028	Fresche.exe.com	37
PID 1028 wrote to memory of 1644	1028	Fresche.exe.com	37

C:\Users\Admin\AppData\Local\Temp\main_setup_x86x64.bin.exe
"C:\Users\Admin\AppData\Local\Temp\main_setup_x86x64.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Windows\SysWOW64\makecab.exe
  "C:\Windows\System32\makecab.exe"
  2⤵
  PID:1312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c mtGCHFXHhSVuwQmJLT & EmCeqebftHqwLnhIhSxEfgLn & cmd < Cui.jar
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Windows\SysWOW64\cmd.exe
    cmd
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:628
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^PGjCsNUUOkulVUDgTCsLgwbtgnrtaMjQyMxswDFobKDrInIVqUHEnjBNoihSKQBwYdtpmkjfXohDnxcQQitnyHsSkGpTfMbHpBtszncOHsHdZXfOMbeCLrWsZkXTezZlKGxWfrv$" Sete.jar
      4⤵
      PID:796
  - - C:\Users\Admin\AppData\Roaming\OXsFtCpbcFqWwGmldTZhQlINikRdfndNrRkyyJZyREdShLkkVzZcMkxDgDnSKSiW\Fresche.exe.com
      Fresche.exe.com d
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1028
    - - C:\Users\Admin\AppData\Roaming\OXsFtCpbcFqWwGmldTZhQlINikRdfndNrRkyyJZyREdShLkkVzZcMkxDgDnSKSiW\Fresche.exe.com
        
        C:\Users\Admin\AppData\Roaming\OXsFtCpbcFqWwGmldTZhQlINikRdfndNrRkyyJZyREdShLkkVzZcMkxDgDnSKSiW\Fresche.exe.com d
        5⤵
        Executes dropped EXE
        Checks processor information in registry
        
        PID:1644
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 30
      4⤵
      Runs ping.exe
      PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1644-78-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1652-60-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download