b7c0e579335dc9c1babf08824cd2758a0fb059b7f5c815debdddd5d41217f4b9

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29/09/2024, 19:04

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General

Target

2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe
Size

36KB
MD5

c21bedf813fe992bb7b2c7c0e9ec434b
SHA1

52ba6c0b124a8b837d4ed5b7d9bf0096991e6e15
SHA256

b7c0e579335dc9c1babf08824cd2758a0fb059b7f5c815debdddd5d41217f4b9
SHA512

fbd39b5deebeeb49f1ba96bf1ea78d03fdd0fe817c2207f91e12f822f64293b2ba050309dfb218c9d7737f12456ee36dc31a7486122fcbe21a838c9bc6e21257
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT2:qDdFJy3QMOtEvwDpjjWMl7T2

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2136	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1288	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1288-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001665b-11.dat	upx
behavioral1/memory/1288-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2136-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2136-28-0x0000000000500000-0x0000000000510000-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	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 2136	1288	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe	29
PID 1288 wrote to memory of 2136	1288	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe	29
PID 1288 wrote to memory of 2136	1288	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe	29
PID 1288 wrote to memory of 2136	1288	2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_c21bedf813fe992bb7b2c7c0e9ec434b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1288
- 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:2136

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

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Downloads

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

Filesize
36KB

MD5
65ac5918ca01a4be779c5d11f31b215b

SHA1
35389299b078428525a6a56210fa6dc93568be64

SHA256
ad7ff66ffacf3b8957c9d921e7a20425a10d3b6fc2a5673cd914e81c246e9f2f

SHA512
5967d21e9bedefd7f92d677797611b40e6568e94fc4f79621ea6565cea4bb86ec3c496703eb056e9f99d40a520874f8ace2a1026ef12891634d47e2414dbd7c2

Download Submit
memory/1288-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1288-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1288-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1288-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1288-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1288-14-0x0000000000900000-0x0000000000910000-memory.dmp

Filesize
64KB

Download
memory/2136-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2136-21-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2136-27-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2136-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download