529795dd8aca10a7a9eec4820c8cae92c53163f47c15c6166b9f1cadc01430cc

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
23/09/2023, 11:53

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General

Target

2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe
Size

31KB
MD5

2ba7559addf071dd86f467d1da44e701
SHA1

49448e6eed8ffd4817508e6162773d3df0299caa
SHA256

529795dd8aca10a7a9eec4820c8cae92c53163f47c15c6166b9f1cadc01430cc
SHA512

de50a2ad09a067813462c9acd0d49975e4cbbd5fac918a588970fc1cfd18bd190dc72d46f49282413a32868f542f038602571ff34e6f1f031e289260a7be9fcd
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axch:qUmnpomddpMOtEvwDpjjaYac

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2444	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00070000000120e3-11.dat	upx
behavioral1/memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2444-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x00070000000120e3-14.dat	upx
behavioral1/files/0x00070000000120e3-25.dat	upx
behavioral1/memory/2444-26-0x0000000000500000-0x000000000050F000-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 2208 wrote to memory of 2444	2208	2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe	28
PID 2208 wrote to memory of 2444	2208	2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe	28
PID 2208 wrote to memory of 2444	2208	2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe	28
PID 2208 wrote to memory of 2444	2208	2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-26_2ba7559addf071dd86f467d1da44e701_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2444

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\asih.exe

Filesize
31KB

MD5
fe035d119bb90d0ed195237d5d3baef6

SHA1
6180d85eea3f8c2470b1715ba372ac195fc333f7

SHA256
3df0d17e80edd9812d5819a88087341e580acb132e7f43bdfc874f2ee83f725e

SHA512
011ada5f5d487bcc4046ff217deee78cc49546e7316074b8e0ea84d201d066437a5f703485c0aaac052958ecacdc687ecc1c6c3631f3c76cb07285a31adc90b0

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

Filesize
31KB

MD5
fe035d119bb90d0ed195237d5d3baef6

SHA1
6180d85eea3f8c2470b1715ba372ac195fc333f7

SHA256
3df0d17e80edd9812d5819a88087341e580acb132e7f43bdfc874f2ee83f725e

SHA512
011ada5f5d487bcc4046ff217deee78cc49546e7316074b8e0ea84d201d066437a5f703485c0aaac052958ecacdc687ecc1c6c3631f3c76cb07285a31adc90b0

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

Filesize
31KB

MD5
fe035d119bb90d0ed195237d5d3baef6

SHA1
6180d85eea3f8c2470b1715ba372ac195fc333f7

SHA256
3df0d17e80edd9812d5819a88087341e580acb132e7f43bdfc874f2ee83f725e

SHA512
011ada5f5d487bcc4046ff217deee78cc49546e7316074b8e0ea84d201d066437a5f703485c0aaac052958ecacdc687ecc1c6c3631f3c76cb07285a31adc90b0

Download Submit
memory/2208-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2208-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2208-4-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2208-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2444-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2444-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2444-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2444-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download