ffa6642e25f0690e4a8454c28955219d4de344264f3a686cd72ee3fc8476842e

Analysis

max time kernel
134s
max time network
144s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
08/08/2023, 18:22

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General

Target

a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe
Size

87KB
MD5

a0d74157c94310e78c3c561fdf479719
SHA1

d691d858d67413648fcfe28336b97469a97dc486
SHA256

ffa6642e25f0690e4a8454c28955219d4de344264f3a686cd72ee3fc8476842e
SHA512

e4d3a6c4a6b3756f949dbb80223905a60823bffaf9eb2e8a44fa12388267cc130fd83e8fe320149204d86c6c038638078fb5e4bb21071016c9d3f3938076a8d3
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDW9:zCsanOtEvwDpj5

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2884	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2536-53-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012024-64.dat	upx
behavioral1/memory/2536-68-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012024-67.dat	upx
behavioral1/memory/2884-70-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012024-79.dat	upx
behavioral1/memory/2884-81-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2884	2536	a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe	28
PID 2536 wrote to memory of 2884	2536	a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe	28
PID 2536 wrote to memory of 2884	2536	a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe	28
PID 2536 wrote to memory of 2884	2536	a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a0d74157c94310e78c3c561fdf479719_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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\misid.exe

Filesize
87KB

MD5
ea9eb54729f0f2e472421bf7807cedb1

SHA1
a859de58ed300a722b3d1cd437cc2423e1332652

SHA256
213333d7cc2a11aafdfb9f6ee965a63dcb65dae3525cf5f77e07af2d5bb65f61

SHA512
8173e456471a3c982cdfaa2d19a81e20de90b50f91e89ffe102ba14a88fa531cc6ddabaa6f3ad83d199f90b10646001e4d0f6d30c6cfaefa406f1d639e2c1fe5

Download Submit
C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
87KB

MD5
ea9eb54729f0f2e472421bf7807cedb1

SHA1
a859de58ed300a722b3d1cd437cc2423e1332652

SHA256
213333d7cc2a11aafdfb9f6ee965a63dcb65dae3525cf5f77e07af2d5bb65f61

SHA512
8173e456471a3c982cdfaa2d19a81e20de90b50f91e89ffe102ba14a88fa531cc6ddabaa6f3ad83d199f90b10646001e4d0f6d30c6cfaefa406f1d639e2c1fe5

Download Submit
\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
87KB

MD5
ea9eb54729f0f2e472421bf7807cedb1

SHA1
a859de58ed300a722b3d1cd437cc2423e1332652

SHA256
213333d7cc2a11aafdfb9f6ee965a63dcb65dae3525cf5f77e07af2d5bb65f61

SHA512
8173e456471a3c982cdfaa2d19a81e20de90b50f91e89ffe102ba14a88fa531cc6ddabaa6f3ad83d199f90b10646001e4d0f6d30c6cfaefa406f1d639e2c1fe5

Download Submit
memory/2536-56-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2536-53-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2536-68-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2536-55-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2536-69-0x0000000000680000-0x0000000000690000-memory.dmp

Filesize
64KB

Download
memory/2536-54-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2536-80-0x0000000000680000-0x0000000000690000-memory.dmp

Filesize
64KB

Download
memory/2884-70-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2884-72-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2884-73-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2884-81-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download