1d6b66b58ff85b22ea38eecc2d9be751ba12419352beebf23934fc5aa7e6b453

Analysis

max time kernel
136s
max time network
147s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
04-08-2023 16:12

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General

Target

5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe
Size

82KB
MD5

5dee6c0cfb2309550465e27721af8881
SHA1

0a8a5a07102c453f9d120bedc8bfab253ed7d358
SHA256

1d6b66b58ff85b22ea38eecc2d9be751ba12419352beebf23934fc5aa7e6b453
SHA512

cf4bf0a442d0c83844fbd987527281c7e72575010201dd66c498ded536adb0866e8b279d4c3655055a1f3cd92a36f9fcd99482266315c0b902e1fced70bd99b6
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOTu:T6a+rdOOtEvwDpjNO

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2360	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2568	5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2568-54-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2568-69-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2360-71-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012107-70.dat	upx
behavioral1/files/0x0007000000012107-65.dat	upx
behavioral1/files/0x0007000000012107-80.dat	upx
behavioral1/memory/2360-81-0x0000000000500000-0x0000000000510000-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 2568 wrote to memory of 2360	2568	5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe	28
PID 2568 wrote to memory of 2360	2568	5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe	28
PID 2568 wrote to memory of 2360	2568	5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe	28
PID 2568 wrote to memory of 2360	2568	5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\5dee6c0cfb2309550465e27721af8881_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2360

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
82KB

MD5
ae880254a1e4258e243e981aa39c7de4

SHA1
e90f4e22c69eda4517294bbb5d6653391410c57a

SHA256
c85115283207f44951377e0295579bd98b34ba2db1e6efc1d9fe0fa49a2c7282

SHA512
547be3f3d0ee835eeba876199aeb32797732966caee78f5b511794bd69bb98b01b12837c80c59160be7a767bf21df43b2e71efe2855c91c31a1e2f3073f302ca

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

Filesize
82KB

MD5
ae880254a1e4258e243e981aa39c7de4

SHA1
e90f4e22c69eda4517294bbb5d6653391410c57a

SHA256
c85115283207f44951377e0295579bd98b34ba2db1e6efc1d9fe0fa49a2c7282

SHA512
547be3f3d0ee835eeba876199aeb32797732966caee78f5b511794bd69bb98b01b12837c80c59160be7a767bf21df43b2e71efe2855c91c31a1e2f3073f302ca

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

Filesize
82KB

MD5
ae880254a1e4258e243e981aa39c7de4

SHA1
e90f4e22c69eda4517294bbb5d6653391410c57a

SHA256
c85115283207f44951377e0295579bd98b34ba2db1e6efc1d9fe0fa49a2c7282

SHA512
547be3f3d0ee835eeba876199aeb32797732966caee78f5b511794bd69bb98b01b12837c80c59160be7a767bf21df43b2e71efe2855c91c31a1e2f3073f302ca

Download Submit
memory/2360-73-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2360-71-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2360-74-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2360-81-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2568-69-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2568-57-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2568-67-0x00000000026C0000-0x00000000026D0000-memory.dmp

Filesize
64KB

Download
memory/2568-56-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2568-54-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2568-55-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download