cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529

Analysis

max time kernel
90s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
21-04-2024 04:51

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General

Target

cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe
Size

6.1MB
MD5

ff48ea9f90dadf5201438b1e9de131b9
SHA1

0adcbf8ef9f00875d10f4851fb8a2c23def7d1a4
SHA256

cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529
SHA512

1b4ac86e1315d8fe471aaa33eef9cac4809d48e1b949c1d6adb268b4b75038f8b716faa95575f9c89d98172259d09bad2cc3a85ae709e02d2ea9449b9cfe7d22
SSDEEP

98304:YNw/Xb1EVZoSip8lfNLtiyIaHgEPUD1J9IxAwST07NqWifSpO16eKMi+tt3HkDMi:NQgp8FvFHz491SsYQ6r5+tt3BWH9RzKo

Score

7^/10

vmprotect

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

work.exefesth.exe

pid process

4376 work.exe
4984 festh.exe

pid	process
4376	work.exe
4984	festh.exe

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\RarSFX1\festh.exe	vmprotect
behavioral2/memory/4984-20-0x0000000000D40000-0x000000000163C000-memory.dmp	vmprotect
behavioral2/memory/4984-21-0x0000000000D40000-0x000000000163C000-memory.dmp	vmprotect
behavioral2/memory/4984-23-0x0000000000D40000-0x000000000163C000-memory.dmp	vmprotect

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

festh.exe

pid process

4984 festh.exe
4984 festh.exe

pid	process
4984	festh.exe
4984	festh.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.execmd.exework.exe

description	pid	process	target process
PID 5056 wrote to memory of 2864	5056	cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe	cmd.exe
PID 5056 wrote to memory of 2864	5056	cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe	cmd.exe
PID 5056 wrote to memory of 2864	5056	cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe	cmd.exe
PID 2864 wrote to memory of 4376	2864	cmd.exe	work.exe
PID 2864 wrote to memory of 4376	2864	cmd.exe	work.exe
PID 2864 wrote to memory of 4376	2864	cmd.exe	work.exe
PID 4376 wrote to memory of 4984	4376	work.exe	festh.exe
PID 4376 wrote to memory of 4984	4376	work.exe	festh.exe
PID 4376 wrote to memory of 4984	4376	work.exe	festh.exe

C:\Users\Admin\AppData\Local\Temp\cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe
"C:\Users\Admin\AppData\Local\Temp\cff5657843fe7039f6e15fbfdb8728b1b752d66503d0564dbe5b3bb4c567a529.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5056

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:2864

C:\Users\Admin\AppData\Local\Temp\RarSFX0\work.exe
work.exe -priverdD
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4376

C:\Users\Admin\AppData\Local\Temp\RarSFX1\festh.exe
"C:\Users\Admin\AppData\Local\Temp\RarSFX1\festh.exe"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4984

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\1.bat
Filesize
35B

MD5
ff59d999beb970447667695ce3273f75

SHA1
316fa09f467ba90ac34a054daf2e92e6e2854ff8

SHA256
065d2b17ad499587dc9de7ee9ecda4938b45da1df388bc72e6627dff220f64d2

SHA512
d5ac72cb065a3cd3cb118a69a2f356314eeed24dcb4880751e1a3683895e66cedc62607967e29f77a0c27adf1c9fe0efd86e804f693f0a63a5b51b0bf0056b5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\work.exe
Filesize
5.8MB

MD5
9eecde1399cc9081d8e2c3b228ce34ea

SHA1
7951e70bd9231d7a88cd2b9ed151ef9c936da11f

SHA256
3095b5364a984068acd8d54e6d4740db378750160657e50705bdba5be66f35c6

SHA512
cd1ebfa6e8a8d4ac03f8b89bc56e7abd8caaa54c813c1da8aebcdb5443b9d95c651ab26580994bf3c05b90a99bc07b56aeeb2d070456adefd64edd26919d31dd

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX1\festh.exe
Filesize
5.5MB

MD5
9e5880b7c48bb2b7532b0a1b68ef8747

SHA1
1cc4383ea2879b960edc6516e682d21f42fceef7

SHA256
195669b35daa53ca30d9b9bf7e93eaef8f48c610abfd039e74e015d50a3034af

SHA512
a62c2797aaf4215ab648266ee37b690304f66bb947b46eb7c98f1b47956aee589a2bbe8ab89c9a4984b8be4ac7bb6ffa1440c9e32251e15bea5d2f87f4e134df

Download Submit
memory/4984-19-0x0000000000C30000-0x0000000000C31000-memory.dmp

Filesize
4KB

Download
memory/4984-20-0x0000000000D40000-0x000000000163C000-memory.dmp

Filesize
9.0MB

Download
memory/4984-21-0x0000000000D40000-0x000000000163C000-memory.dmp

Filesize
9.0MB

Download
memory/4984-23-0x0000000000D40000-0x000000000163C000-memory.dmp

Filesize
9.0MB

Download