0c98165bb6e602fffa3ac21a6ab597442c669027ec1df63669bcdd2ab8f6c85b

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-10-2024 01:23

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General

Target

2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe
Size

28KB
MD5

16e319112ac4a6d2aeff4f0e93462a89
SHA1

b8f05f34d9fdcfaf5b04ab4e510ecc07ce9d5e21
SHA256

0c98165bb6e602fffa3ac21a6ab597442c669027ec1df63669bcdd2ab8f6c85b
SHA512

e7bd4e148fe37b1862e9cc54ef9feaf8e87d1e993a7476ea302730fd390d8c4bfb1f6b9215855dbb1bdd7487571ad745369a02f3d8705a35693c77dded52c342
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqG:bFgm5zusFUB2preAr+Ofjg0STX73OBqG

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
980	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1652	2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1652-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/memory/1652-17-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/files/0x000800000001211b-16.dat	upx
behavioral1/memory/980-27-0x0000000008000000-0x000000000800E000-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_16e319112ac4a6d2aeff4f0e93462a89_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 1652 wrote to memory of 980	1652	2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe	30
PID 1652 wrote to memory of 980	1652	2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe	30
PID 1652 wrote to memory of 980	1652	2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe	30
PID 1652 wrote to memory of 980	1652	2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_16e319112ac4a6d2aeff4f0e93462a89_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652
- 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:980

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

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

Filesize
28KB

MD5
200f787776012a1139a7a881527fc164

SHA1
080b47ccaf11282ce0787c01fe8cd66a6102d2ce

SHA256
f3e6830e0ace9fdeab73fea022202ebc4accfd7ed1e908853300dc2379c122b4

SHA512
3cfd450c79a20f280bfa78d590bce273a83b8a238d15a7f95a9e0719e8b52bb1a14485cc59761f6bbd43362bac7679b3b82c50a2955cdff2e357816ea56d5d32

Download Submit
memory/980-19-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/980-26-0x0000000001AF0000-0x0000000001AF6000-memory.dmp

Filesize
24KB

Download
memory/980-27-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/1652-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/1652-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1652-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1652-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1652-15-0x0000000002730000-0x000000000273E000-memory.dmp

Filesize
56KB

Download
memory/1652-17-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download