b4071c35cab39fef017da43175ca11eecd823913199498f8c3f023391786145f

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-10-2024 06:25

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General

Target

2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe
Size

43KB
MD5

43def853cb114cee4da61dc50577cd37
SHA1

a2a5e0ba5de67660df034ee2668aa0276932372e
SHA256

b4071c35cab39fef017da43175ca11eecd823913199498f8c3f023391786145f
SHA512

67c9ffdc59faa8ebfefd4d1c2c5e317ca864d46b9e1b114e484b2db0b8439dcfd773b158e0ed604d6ce54f3a58f9b838f5a28a7ce207229b25a3dadd52a2cf79
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtA/Q:bCDOw9aMDooc+vA/Q

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2812	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
880	2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe

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	2024-10-14_43def853cb114cee4da61dc50577cd37_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 880 wrote to memory of 2812	880	2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe	30
PID 880 wrote to memory of 2812	880	2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe	30
PID 880 wrote to memory of 2812	880	2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe	30
PID 880 wrote to memory of 2812	880	2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_43def853cb114cee4da61dc50577cd37_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:880
- 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:2812

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
43KB

MD5
2de8896f8cde0777367bb9f7ad4bf0f3

SHA1
0faab7881004efc6dfa66e3b816f29fbebfa09f9

SHA256
91e23efdba7cc422842adcd3a1f15664270c2ad43fcd0e21f511ad21c60e10d8

SHA512
6048e1bcefc320a3b02a4d8c183f2ce9155547290609955689d4680d6ccbd20ec3796164aab3d332120a8920db6e29ad77a40f0886d76ab6eadc3fcad2bceda9

Download Submit
memory/880-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/880-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/880-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/880-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/880-14-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2812-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2812-18-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2812-25-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2812-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download