b505c25a077612e51bc86cefbff88a4910d919f1b61b4068dcc25fb7cfa969d0

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 03:30

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General

Target

2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe
Size

46KB
MD5

7a05f864d3740fcd4b9b06673f312be1
SHA1

fce56997dc47738c52023b6ef8360bdb2a80500d
SHA256

b505c25a077612e51bc86cefbff88a4910d919f1b61b4068dcc25fb7cfa969d0
SHA512

55272433b0e75df027d34a78db4d3ccbc0e42af7461b795aa81dfc3411f91a23965626cbf1a49f142544592a39deef68c37b269b6dc56f34d721d2c9fb9a3abc
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0STX73OBqOZ3:bODOw9acifH+YO

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1936	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2480	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2480-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x000c00000001227e-11.dat	upx
behavioral1/memory/1936-16-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/2480-15-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/1936-26-0x0000000008000000-0x000000000800F000-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	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lossy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2480 wrote to memory of 1936	2480	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe	31
PID 2480 wrote to memory of 1936	2480	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe	31
PID 2480 wrote to memory of 1936	2480	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe	31
PID 2480 wrote to memory of 1936	2480	2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_7a05f864d3740fcd4b9b06673f312be1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2480
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1936

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\lossy.exe

Filesize
46KB

MD5
7eec3312881deb8d524aeba7e8685651

SHA1
9fc84693ddc31e08afec6def138d8a3f5cf01836

SHA256
c9209720d7308697e9d420eed477c4ac73b0a8a785d40ae2c5549b102a2ac705

SHA512
f0c58de02cb30ec63d64458f6923f963850221561105832dc82edafc2e5d23f90525d72149253c9864968b49e89caa456db0e376084d5174daddffe08b9fa8c4

Download Submit
memory/1936-16-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/1936-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1936-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1936-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2480-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/2480-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2480-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2480-3-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2480-15-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download