e73471b448ab7a3314a4d72f6a192cf7815bbd4bac70a15799e919af78e060bf

Analysis

max time kernel
144s
max time network
45s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 10:07

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General

Target

CloudSchoolPlatform_Student+Runtimes_Setup.exe
Size

212.7MB
MD5

66c2d02a178f54ab86e142fb31a94fbd
SHA1

62fb728d6d4089027fc4ce69dacd5048e5d53e28
SHA256

e73471b448ab7a3314a4d72f6a192cf7815bbd4bac70a15799e919af78e060bf
SHA512

b4e404e5d4cbf3391fd071e1e749b26cbcbc909a244f83bbad70fdcc60b6aadffbe0688f7415bebac8dde095eb6557f3d4557974073c0fe195cac57d08370025
SSDEEP

3145728:RiSD1qI2lHl9oBeBEgZA+UtYiXdX/UJs7Io+Vk3PRstfYkbOQQTZO4U7lofcUUoc:8OqDl8QS2A+IY6dX/Ws7uVkShTlYUF

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2524	IFinst27.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2908-0-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/memory/2908-1-0x00000000002D0000-0x00000000002FB000-memory.dmp	upx
behavioral1/files/0x000a000000012261-7.dat	upx
behavioral1/memory/2908-9-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/files/0x000a000000012261-8.dat	upx
behavioral1/memory/2524-10-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/memory/2524-11-0x0000000000400000-0x000000000042B000-memory.dmp	upx
behavioral1/memory/2524-26-0x0000000000400000-0x000000000042B000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\IFinst27.exe	CloudSchoolPlatform_Student+Runtimes_Setup.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30
PID 2908 wrote to memory of 2524	2908	CloudSchoolPlatform_Student+Runtimes_Setup.exe	30

C:\Users\Admin\AppData\Local\Temp\CloudSchoolPlatform_Student+Runtimes_Setup.exe
"C:\Users\Admin\AppData\Local\Temp\CloudSchoolPlatform_Student+Runtimes_Setup.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\IFinst27.exe
  "C:\Windows\IFinst27.exe" -IC:\Users\Admin\AppData\Local\Temp\CloudSchoolPlatform_Student+Runtimes_Setup.exe
  2⤵
  - Executes dropped EXE
  PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ifF7F6.tmp

Filesize
419B

MD5
6fb7e5a9beff4eedde2b399903776596

SHA1
6574430e7a3185780434c76000f948d72989017c

SHA256
c5f338253ee3adcafeebb760895875e133134d446b9c3a7e58cfc5da88b1aa88

SHA512
781dca21e9a20d37ddda1c738a4eda32ed53eb32e8e59b5258b9af2ded3fc7a9f993003777fdb82eb245915f2024eb2672fcc1802399fb7adfed931e06511e1e

Download Submit
C:\Windows\IFinst27.exe

Filesize
64KB

MD5
9c17bca3ef837bacded7e4299508e71d

SHA1
253c7e956ad6cb66e0e47e5d9a6a19d78e9c96e0

SHA256
2405e5479aeb7d43d1362969b9c439e5931b8f900f9adfe0faaa986365415193

SHA512
12c1c5dbdf763d6d361b9d412794b0d85b6134843114120b843f30db198a3a211e2c06eadd3ed25271b4cd06a7367df7dafc6b9b33b1bce479f3ad050caeb625

Download Submit
C:\Windows\IFinst27.exe

Filesize
64KB

MD5
9c17bca3ef837bacded7e4299508e71d

SHA1
253c7e956ad6cb66e0e47e5d9a6a19d78e9c96e0

SHA256
2405e5479aeb7d43d1362969b9c439e5931b8f900f9adfe0faaa986365415193

SHA512
12c1c5dbdf763d6d361b9d412794b0d85b6134843114120b843f30db198a3a211e2c06eadd3ed25271b4cd06a7367df7dafc6b9b33b1bce479f3ad050caeb625

Download Submit
memory/2524-10-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2524-11-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2524-26-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2908-0-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2908-1-0x00000000002D0000-0x00000000002FB000-memory.dmp

Filesize
172KB

Download
memory/2908-2-0x00000000002D0000-0x00000000002FB000-memory.dmp

Filesize
172KB

Download
memory/2908-9-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download