07a05e3a636119cd9a5ba381907bd81cb83426ff826d7c81099cdf8273e6fc2c

Analysis

max time kernel
140s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
18/08/2023, 14:19

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General

Target

2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe
Size

64KB
MD5

2a813963a5caedeb4219c8f39caa1806
SHA1

69b08e7a62e681de591b99bb86e8a3b9512badf7
SHA256

07a05e3a636119cd9a5ba381907bd81cb83426ff826d7c81099cdf8273e6fc2c
SHA512

175c9a7644acbc690709663ad6a5548e90bd4981bdb6713c7a5cddef1d9db602d32207db2f7d9921e046df25e5ce25d8368531bea41b3d51e220d56ea99a2457
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAvz:z6a+CdOOtEvwDpjQM

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2660	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2528-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012028-65.dat	upx
behavioral1/memory/2660-71-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2528-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012028-68.dat	upx
behavioral1/files/0x0008000000012028-80.dat	upx
behavioral1/memory/2660-82-0x0000000000500000-0x0000000000510000-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 2528 wrote to memory of 2660	2528	2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe	28
PID 2528 wrote to memory of 2660	2528	2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe	28
PID 2528 wrote to memory of 2660	2528	2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe	28
PID 2528 wrote to memory of 2660	2528	2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2a813963a5caedeb4219c8f39caa1806_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2660

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
64KB

MD5
493092832723c5e59662342e27c77c36

SHA1
3dbeef8211da9f078581fc537a2f5ba32d716d6d

SHA256
3415262fc8b550598ceebe9a7d15b1bb03e5ac2042b0a7d63ef521c6ba3ee197

SHA512
705160f933e68b76c8aec1de1baf8694f2237c3533dafec3ac4fb988cdc72cd2345f281e0353a1a6db9d6e777f0cf30b615c17f181073c80e71f434111bef95b

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

Filesize
64KB

MD5
493092832723c5e59662342e27c77c36

SHA1
3dbeef8211da9f078581fc537a2f5ba32d716d6d

SHA256
3415262fc8b550598ceebe9a7d15b1bb03e5ac2042b0a7d63ef521c6ba3ee197

SHA512
705160f933e68b76c8aec1de1baf8694f2237c3533dafec3ac4fb988cdc72cd2345f281e0353a1a6db9d6e777f0cf30b615c17f181073c80e71f434111bef95b

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

Filesize
64KB

MD5
493092832723c5e59662342e27c77c36

SHA1
3dbeef8211da9f078581fc537a2f5ba32d716d6d

SHA256
3415262fc8b550598ceebe9a7d15b1bb03e5ac2042b0a7d63ef521c6ba3ee197

SHA512
705160f933e68b76c8aec1de1baf8694f2237c3533dafec3ac4fb988cdc72cd2345f281e0353a1a6db9d6e777f0cf30b615c17f181073c80e71f434111bef95b

Download Submit
memory/2528-55-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2528-57-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2528-56-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2528-70-0x0000000001CD0000-0x0000000001CE0000-memory.dmp

Filesize
64KB

Download
memory/2528-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2528-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2528-81-0x0000000001CD0000-0x0000000001CE0000-memory.dmp

Filesize
64KB

Download
memory/2660-71-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2660-74-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2660-73-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2660-82-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download