d1f1ccdc3bbd845f7dd7ed7eba189849081d37092f905a03521d3bf850b655ae

Analysis

max time kernel
140s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07/08/2024, 03:21

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General

Target

2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe
Size

38KB
MD5

287c48d0448a967cdaf0c4edeb780803
SHA1

20c25c5f831d14ef9097545879a05098ebf24850
SHA256

d1f1ccdc3bbd845f7dd7ed7eba189849081d37092f905a03521d3bf850b655ae
SHA512

e055ea0fccfb453ada051b53ca50c84c7af39abc553be737d38df1640cde0e44d6085cf7691bcf3dec17862f5504a04ec3d7711712ef6df3231351f937421807
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITH:qDdFJy3QMOtEvwDpjjWMl7TH

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1052	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2552	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2552-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0007000000012118-11.dat	upx
behavioral1/memory/2552-13-0x0000000001EA0000-0x0000000001EB0000-memory.dmp	upx
behavioral1/memory/2552-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1052-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 1052	2552	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe	30
PID 2552 wrote to memory of 1052	2552	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe	30
PID 2552 wrote to memory of 1052	2552	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe	30
PID 2552 wrote to memory of 1052	2552	2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
38KB

MD5
469b31f8ebfb1326efe1acf76f665948

SHA1
6c27ed78721fc2992532e782eb930609db49aeec

SHA256
48561ac36b577673a0f8cc1bfabdc92aa893f776ae60d70d32a607cc0cc5041f

SHA512
e771cb16c51c779a4ea9c2ff9855ab1744f5a97b6d1855c565f1aa31cf02ee4128c98910f09c152bb6a07e1be0d516c659c92da3c5fdaa2413826cf3ba636a58

Download Submit
memory/1052-19-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1052-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1052-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2552-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2552-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2552-9-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2552-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2552-13-0x0000000001EA0000-0x0000000001EB0000-memory.dmp

Filesize
64KB

Download
memory/2552-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download