fdb152bfe299686df071e13bb8054d83472fc5c2a9a8a21f69922343a0683bc0

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 01:27

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General

Target

2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe
Size

28KB
MD5

7cbe1512b4f2b3d8b5f02a0a0be91b08
SHA1

14dcde88de5b080d59431b237f67dd45ca2fb534
SHA256

fdb152bfe299686df071e13bb8054d83472fc5c2a9a8a21f69922343a0683bc0
SHA512

b54b180db6e9b7fe78ed8cce57e0903938ebfdfd71f3808cd308ddc1cdeb81d168c4fffe8f8a3f9a8b868c203ec877d2593e9d56934d923129e26db585dc6853
SSDEEP

384:bFgFQrdSmuQ8WFqxpj5cpyIuYxVe3FSr+OLfjDp+0g/HNblX7QCOBqE:bFgm5zusFUB2preAr+Ofjg0STX73OBqE

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2440	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3060-0-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/files/0x0009000000012118-16.dat	upx
behavioral1/memory/3060-15-0x0000000008000000-0x000000000800E000-memory.dmp	upx
behavioral1/memory/2440-26-0x0000000008000000-0x000000000800E000-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_7cbe1512b4f2b3d8b5f02a0a0be91b08_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 3060 wrote to memory of 2440	3060	2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe	30
PID 3060 wrote to memory of 2440	3060	2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe	30
PID 3060 wrote to memory of 2440	3060	2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe	30
PID 3060 wrote to memory of 2440	3060	2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-02_7cbe1512b4f2b3d8b5f02a0a0be91b08_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- 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:2440

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\lossy.exe

Filesize
28KB

MD5
a9a7de3e09852fe3e3457c08d5da67fc

SHA1
8d0c94abb59f1a374cee24e1592d9e1bf3f1d4b0

SHA256
a707a510ae1d3ccc5d745c297d5c564cbcede2424e2031bde8e4c0508a9248c2

SHA512
6a275e4bd2538f4bc1ec13f8192937b2849c07de9ea951c45e436b0f2d393b90d766c95f289d8c54ccc371ad22aea0616d9c5370264f0e6b210bb41c14a34bd8

Download Submit
memory/2440-25-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2440-18-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2440-26-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/3060-0-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download
memory/3060-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3060-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3060-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3060-15-0x0000000008000000-0x000000000800E000-memory.dmp

Filesize
56KB

Download