8c7f4025c558872090cd5371e575b3281d94fe87b418738b0a8daa5b8dd25724

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 20:47

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General

Target

2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe
Size

38KB
MD5

b9fb595bcc90520e92437dd36e69382b
SHA1

dd12435607072eb58e92c33c0f547c96419acf29
SHA256

8c7f4025c558872090cd5371e575b3281d94fe87b418738b0a8daa5b8dd25724
SHA512

7b38414e5428d6bfca92a71a60a40686d6e63b1b8c6cd64640a03892e359dc9ebc5dd57554b7b7207f963b36537fd483f4b9ea4ce70bcfdb2631570287094bf5
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITw:qDdFJy3QMOtEvwDpjjWMl7Tw

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2904	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2708	2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a00000001225f-16.dat	upx
behavioral1/memory/2904-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2904-27-0x0000000000500000-0x0000000000510000-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	2024-10-17_b9fb595bcc90520e92437dd36e69382b_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 2708 wrote to memory of 2904	2708	2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe	31
PID 2708 wrote to memory of 2904	2708	2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe	31
PID 2708 wrote to memory of 2904	2708	2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe	31
PID 2708 wrote to memory of 2904	2708	2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_b9fb595bcc90520e92437dd36e69382b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- 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:2904

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

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

Filesize
38KB

MD5
48d69790be78e49b9f9ea01c74816f3b

SHA1
9fdb810bb77b622202da8a5945efe70347bb1738

SHA256
fb5b1a7f17096df85781e16b7f59c326173e66bc647e6be0d73c6ca9d2dd54c8

SHA512
0caa417d47c015b00fb8f63919c2c635a7071913e62f843cbb0f9274538bdba82bfb1f91d0f1db251552969d80de74d1dafa6bc542e410c060699384a010abb1

Download Submit
memory/2708-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2708-2-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2708-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2708-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2708-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2904-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2904-20-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2904-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2904-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download