d259bfda11d93425538f5effb7bfdc9bf832acbc1d3ce3b0364fe4a91c1e0c28

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 02:36

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General

Target

2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe
Size

93KB
MD5

6050213d7f9b9e007c93dcbeaea2f445
SHA1

9a1c5fa0ccb1ef330f55bd8200e136340412fd40
SHA256

d259bfda11d93425538f5effb7bfdc9bf832acbc1d3ce3b0364fe4a91c1e0c28
SHA512

6d8f9557fc1e0d01b230a8b3957e4665746ed2a243bd1aa10b99f7667502b07aa78138f77bbed60f7786e83afde3bb174c6f9b7bcde2b26c9d1a744ff8a32b32
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAeP3:n6a+1SEOtEvwDpjYYvQd2Pe

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2836	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2316-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/2836-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2316-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2836-27-0x0000000000500000-0x0000000000510000-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	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_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 2316 wrote to memory of 2836	2316	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe	30
PID 2316 wrote to memory of 2836	2316	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe	30
PID 2316 wrote to memory of 2836	2316	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe	30
PID 2316 wrote to memory of 2836	2316	2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_6050213d7f9b9e007c93dcbeaea2f445_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- 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:2836

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
93KB

MD5
d471c674d53579110085f992aa97d004

SHA1
27ef5b4e5ea42d95be47a79fdb4ac3b78803948b

SHA256
6cf0dc14098eef0f74275624504a416c0c897e4cdd3b55c0309e14a56742cbd0

SHA512
75e074a4a94f6ede0a717c157f69f3993682a85d2b9029927bf2d723849d260f9a4031d2efcaf44da09b07d20f88b5fc44ad7cc40ffd96aae047c0964184c3b9

Download Submit
memory/2316-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2316-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2316-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2316-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2316-16-0x00000000006E0000-0x00000000006F0000-memory.dmp

Filesize
64KB

Download
memory/2316-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2836-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2836-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2836-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2836-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download