020793268f322f338dab8a8522d964919d809f9fba0858b53b0a99b1d5b45ba8

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
06/09/2024, 18:26

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General

Target

2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe
Size

45KB
MD5

575f8e767b89c26ba3f57d8623e6f2b7
SHA1

24635d18d5a34dbf62deef87930f040e75a30548
SHA256

020793268f322f338dab8a8522d964919d809f9fba0858b53b0a99b1d5b45ba8
SHA512

f41bfc736ec5a9ce2f97c6ad8e6cfbca4bc05970eb5dda5818ac6ee1980ced063986b2dcc346974465f5cc60b879ffa2e47c7161f769162def4301952c712d40
SSDEEP

768:bODOw9UiamWUB2preAr+OfjH/0STX73OBqO:bODOw9acifH+YO

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3068	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
3064	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3064-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/3064-15-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/files/0x00090000000120f9-11.dat	upx
behavioral1/memory/3068-17-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral1/memory/3068-26-0x0000000008000000-0x000000000800F000-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	lossy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 3068	3064	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe	30
PID 3064 wrote to memory of 3068	3064	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe	30
PID 3064 wrote to memory of 3068	3064	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe	30
PID 3064 wrote to memory of 3068	3064	2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_575f8e767b89c26ba3f57d8623e6f2b7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- 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:3068

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\lossy.exe

Filesize
46KB

MD5
d52ca52a301e3b3a0ebb728ce61dacb4

SHA1
94ea962693e6de75518351b8675e507fc8a80f7d

SHA256
39e614a2e5ef492c5f544dc73a8fb8b78635c3d3ef0b7f82014eac67366158a3

SHA512
680180e83200b04f920a3770cbc3cc88d95baaf684d9a053ad8bd4a146249809238f64be98b927807fa2fcc12ca9f7a51552362ccb214831bec4a9e8c4b3f4ec

Download Submit
memory/3064-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/3064-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3064-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3064-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/3064-13-0x0000000002A70000-0x0000000002A7F000-memory.dmp

Filesize
60KB

Download
memory/3068-17-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/3068-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/3068-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download